Run test on Linux

Add the check to the RELEASE file. Add "generator" with link to the
sources to view, feed and static templates.

.gitignore

@@ -1,3 +1,7 @@
-/oddmu
 test.md
 /testdata/
+/oddmu-darwin-*
+/oddmu-linux-*
+/oddmu-windows-*
+/oddmu.exe
+/oddmu

LICENSE

@@ -1,4 +1,4 @@
-This software is Copyright (c) 2015–2024 by Alex Schroeder.
+This software is Copyright (c) 2015–2026 by Alex Schroeder.
 
 This is free software, licensed under:
 

Makefile

@@ -1,7 +1,8 @@
-SHELL=/bin/bash
+SHELL=/usr/bin/env bash
 PREFIX=${HOME}/.local
+BINARIES=oddmu-linux-amd64.tar.gz oddmu-linux-arm64.tar.gz oddmu-darwin-amd64.tar.gz oddmu-darwin-arm64.tar.gz oddmu-windows-amd64.tar.gz
 
-.PHONY: help build test run upload docs install priv
+.PHONY: help build test run upload docs install priv clean dist dist-upload
 
 help:
 	@echo Help for Oddmu
@@ -10,12 +11,18 @@ help:
 	@echo "    runs program, offline"
 	@echo make test
 	@echo "    runs the tests without log output"
+	@echo make check
+	@echo "    checks the code with golint and gocritic"
+	@echo make fix
+	@echo "    fixes formatting issues with goimports instead of go fmt"
 	@echo make docs
 	@echo "    create man pages from text files"
 	@echo make build
 	@echo "    just build it"
 	@echo make install
 	@echo "    install the files to ~/.local"
+	@echo sudo make install PREFIX=/usr/local
+	@echo "    install the files to /usr/local"
 	@echo make upload
 	@echo "    this is how I upgrade my server"
 	@echo make dist
@@ -32,6 +39,17 @@ test:
 	rm -rf testdata/*
 	go test -shuffle on .
 
+# go install golang.org/x/lint/golint@latest
+# go install github.com/go-critic/go-critic/cmd/go-critic@latest
+check:
+	golint
+	go-critic check
+
+# go install golang.org/x/tools/cmd/goimports@latest
+fix:
+	goimports -w *.go
+
+
 run:
 	go run .
 
@@ -48,10 +66,13 @@ install:
 	install -D -t ${PREFIX}/bin oddmu
 
 clean:
-	rm --force oddmu oddmu.exe oddmu-{linux,darwin,windows}-{amd64,arm64}{,.tar.gz}
+	rm -f oddmu oddmu.exe oddmu-{linux,darwin,windows}-{amd64,arm64}{,.tar.gz}
 	cd man && make clean
 
-dist: oddmu-linux-amd64.tar.gz oddmu-linux-arm64.tar.gz oddmu-darwin-amd64.tar.gz oddmu-windows-amd64.tar.gz
+dist-upload: $(BINARIES)
+	rsync -ai $^ sibirocobombus:alexschroeder.ch/wiki/oddmu/
+
+dist: $(BINARIES)
 
 oddmu-linux-amd64: *.go
 	GOOS=linux GOARCH=amd64 go build -o $@
@@ -60,6 +81,9 @@ oddmu-linux-arm64: *.go
 	env GOOS=linux GOARCH=arm64 GOARM=5 go build -o $@
 
 oddmu-darwin-amd64: *.go
+	GOOS=darwin GOARCH=amd64 go build -o $@
+
+oddmu-darwin-arm64: *.go
 	GOOS=darwin GOARCH=arm64 go build -o $@
 
 oddmu.exe: *.go
@@ -71,8 +95,8 @@ oddmu-windows-amd64.tar.gz: oddmu.exe
 	  $< *.md man/*.[157].{html,md} themes/
 
 %.tar.gz: %
-	tar --create --file $@ --transform='s/^$</oddmu/' --transform='s/^/oddmu\//' --exclude='*~' \
-	  $< Makefile *.socket *.service *.md man/Makefile man/*.1 man/*.5 man/*.7 themes/
+	tar --create --gzip --file $@ --transform='s/^$</oddmu/' --transform='s/^/oddmu\//' --exclude='*~' \
+	  $< *.html Makefile *.socket *.service *.md man/Makefile man/*.[157] themes/
 
 priv:
 	sudo setcap 'cap_net_bind_service=+ep' oddmu

README.md

@@ -1,28 +1,33 @@
-# Oddµ: A minimal wiki
+# Oddμ: A minimal wiki
 
-This program helps you run a minimal wiki, blog, digital garden, memex
-or Zettelkasten. There is no version history.
+Oddμ (or Oddmu) helps you run a minimal wiki, blog, digital garden,
+memex or Zettelkasten.
 
-It's well suited as a self-hosted, single-user web application, when
-there is no need for collaboration on the site itself. Links and email
-connect you to the rest of the net. The wiki can be public or private.
-Perhaps it just runs on your local machine, unreachable from the
-Internet.
-
-It's well suited as a secondary medium for a close-knit group:
-collaboration and conversation happens elsewhere, in chat, on social
-media. The wiki serves as the text repository that results from these
-discussions. As there are no logins and no version histories, it is
-not possible to undo vandalism and spam. Only allow people you trust
-write-access to the site.
-
-It's well suited as a simple static site generator. There are no
+Oddμ can be run as a static site generator, processing a directory
+with Markdown files, turning them into HTML files. HTML templates
+allow the customisation of headers, footers and styling. There are no
 plugins.
 
-When Oddµ runs as a web server, it serves all the Markdown files
+Oddμ is well suited as a self-hosted, single-user web application.
+Edit the pages from your phone or laptop, while you're on the move.
+
+If the site is public, use a regular web server as a proxy to make
+people log in before making changes. As there is no version history,
+it is not easy to undo vandalism and spam. Only grant write-access
+to people you trust.
+
+If the site is private, running on a local machine and unreachable
+from the Internet, no such precautions are necessary.
+
+This makes Oddμ well suited as a secondary medium for a close-knit group:
+collaboration and conversation happens elsewhere, in chat, on social
+media. The wiki serves as the text repository that results from these
+discussions.
+
+When Oddμ runs as a web server, it serves all the Markdown files
 (ending in `.md`) as web pages. These pages can be edited via the web.
 
-Oddmu adds the following extensions to Markdown: local links `[[like
+Oddμ adds the following extensions to Markdown: local links `[[like
 this]]`, hashtags `#Like_This` and fediverse account links like
 `@alex@alexschroeder.ch`.
 
@@ -32,25 +37,25 @@ necessary.
 
 Other files can be uploaded and images (ending in `.jpg`, `.jpeg`,
 `.png`, `.heic` or `.webp`) can be resized when they are uploaded
-(resulting in `.jpg` or `.png` files).
+(resulting in `.jpg`, `.png` or `.webp` files).
 
 ## Documentation
 
-This project uses man(1) pages. They are generated from text files
+This project uses man pages. They are generated from text files
 using [scdoc](https://git.sr.ht/~sircmpwn/scdoc). These are the files
 available:
 
 [oddmu(1)](https://alexschroeder.ch/view/oddmu/oddmu.1): This man page
 has a short introduction to Oddmu, its configuration via templates and
-environment variables, plus points to the other man pages.
+environment variables, plus pointers to the other man pages.
 
 [oddmu(5)](https://alexschroeder.ch/view/oddmu/oddmu.5): This man page
-talks about the Markdown and includes some examples for the
-non-standard features such as table markup. It also talks about the
-Oddmu extensions to Markdown: wiki links, hashtags and fediverse
-account links. Local links must use percent encoding for page names so
-there is a section about percent encoding. The man page also explains
-how feeds are generated.
+talks about Markdown and includes some examples for the non-standard
+features such as table markup. It also talks about the Oddmu
+extensions to Markdown: wiki links, hashtags and fediverse account
+links. Local links must use percent encoding for page names so there
+is a section about percent encoding. The man page also explains how
+feeds are generated.
 
 [oddmu-releases(7)](https://alexschroeder.ch/view/oddmu/oddmu-releases.7):
 This man page lists all the Oddmu versions and their user-visible
@@ -60,6 +65,11 @@ changes.
 This man page documents the "version" subcommand which you can use to
 get the installed Oddmu version.
 
+[oddmu-man(1)](https://alexschroeder.ch/view/oddmu/oddmu-man.1): Oddmu
+comes with a "man" subcommand to print the manual pages. This man page
+documents the subcommand, but I guess if you can read the man page,
+you don't need the "man" subcommand.
+
 Working locally:
 
 [oddmu-links(1)](https://alexschroeder.ch/view/oddmu/oddmu-links.1):
@@ -101,6 +111,14 @@ Static site generator:
 This man page documents the "html" subcommand to generate HTML from
 Markdown pages from the command line.
 
+[oddmu-feed(1)](https://alexschroeder.ch/view/oddmu/oddmu-feed.1):
+This man page documents the "feed" subcommand to generate a feed from
+Markdown pages from the command line.
+
+[oddmu-sitemap(1)](https://alexschroeder.ch/view/oddmu/oddmu-sitemap.1):
+This man page documents the "sitemap" subcommand to generate the
+static sitemap from the command line.
+
 [oddmu-static(1)](https://alexschroeder.ch/view/oddmu/oddmu-static.1):
 This man page documents the "static" subcommand to generate an entire
 static website from the command line, avoiding the need to run Oddmu
@@ -167,8 +185,6 @@ make docs
 The `Makefile` in the `man` directory has targets to create Markdown
 and HTML files.
 
-The HEIC library uses C code and prevents cross-compilation.
-
 As the repository changed URLs a few times (from GitHub, to
 self-hosted using `cgit` to self-hosted using `legit`), there is no
 way to install it using `go install`. You need to `git clone` the
@@ -209,6 +225,13 @@ into `$HOME/.local/share/man/`.
 make install
 ```
 
+This installs `oddmu` into `/usr/local/bin` and the manual pages into
+`/usr/local/share/man`:
+
+```sh
+sudo make install PREFIX=/usr/local
+```
+
 Here's an example using [GNU Stow](https://www.gnu.org/software/stow/)
 to install it into `/usr/local/stow` in a way that allows you to
 uninstall it later:
@@ -248,6 +271,7 @@ high-level introduction to the various source files.
 - `preview.go` implements the `/preview` handler
 - `score.go` implements the page scoring when showing search results
 - `search.go` implements the `/search` handler
+- `sitemap.go` implements the `/sitemap` handler
 - `snippets.go` implements the page summaries for search results
 - `templates.go` implements template loading and reloading
 - `tokenizer.go` implements the various tokenizers used
@@ -280,18 +304,10 @@ extensions can be added.
 
 ### Filenames and URL path
 
-One of the sad parts of the code is the distinction between path and
-filepath. On a Linux system, this doesn't matter. I suspect that it
-also doesn't matter on MacOS and Windows because the file systems
-handle forward slashes just fine. The code still tries to do the right
-thing. A path that is derived from a URL is a path with slashes.
-Before accessing a file, it has to be turned into a filepath using
-`filepath.FromSlashes` and in the rare case where the inverse happens,
-use `filepath.ToSlashes`. Any path received via the URL path uses
-slashes and needs to be converted to a filepath before passing it to
-any `os` function. Any path received within a `path/filepath.WalkFunc`
-is a filepath and needs to be converted to use slashes when used in
-HTML output.
+There are some simplifications made. The code doesn't consider the
+various encodings (UTF-8 NFC on the web vs UTF-8 NFD for HFS+, for
+example; it also doesn't check for characters in page names that are
+illegal filenames on the filesystem used).
 
 If you need to access the page name in code that is used from a
 template, you have to decode the path. See the code in `diff.go` for
@@ -347,9 +363,12 @@ in turn can be used by browsers to get hyphenation right. Apache-2.0.
 is used to sniff the MIME type of files with unknown filename
 extensions. MIT.
 
-[github.com/gen2brain/heic](https://github.com/gen2brain/heic) is
-used to decode HEIC files (the new default file format for photos on
-iPhones). LGPL-3.0-only.
+[github.com/gen2brain/heic](https://github.com/gen2brain/heic) is used
+to decode HEIC files (the new default file format for photos on
+iPhones). MIT.
+
+[github.com/gen2brain/webp](https://github.com/gen2brain/webp) is used
+to encode and decode WebP files. MIT.
 
 [github.com/disintegration/imaging](https://github.com/disintegration/imaging)
 is used to resize images. MIT.

RELEASE

@@ -1,16 +1,22 @@
 When preparing a new release
 ----------------------------
 
-1. Run tests
+1. run tests
 
-2. Update man/oddmu-releases.7.txt
+2. update man/oddmu-releases.7.txt
    - add missing items
    - change "(unreleased)"
 
-3. make docs
+3. check copyright year in LICENSE
 
-4. Make sure all files are checked in
+4. make docs
 
-5. Tag the release and push the tag to all remotes
+5. make sure all files are checked in
 
-6. cd man && make upload
+6. tag the release and push the tag to the remote
+
+7. make dist
+
+8. make dist-upload
+
+9. cd man && make upload

accounts.go

@@ -2,13 +2,14 @@ package main
 
 import (
 	"encoding/json"
-	"github.com/gomarkdown/markdown/ast"
-	"github.com/gomarkdown/markdown/parser"
 	"io"
 	"log"
 	"net/http"
 	"os"
 	"sync"
+
+	"github.com/gomarkdown/markdown/ast"
+	"github.com/gomarkdown/markdown/parser"
 )
 
 // useWebfinger indicates whether Oddmu looks up the profile pages of fediverse accounts. To enable this, set the
@@ -38,7 +39,7 @@ func init() {
 
 // accountLink links a social media accountLink like @accountLink@domain to a profile page like https://domain/user/accountLink. Any
 // accountLink seen for the first time uses a best guess profile URI. It is also looked up using webfinger, in parallel. See
-// lookUpAccountUri. If the lookup succeeds, the best guess is replaced with the new URI so on subsequent requests, the
+// lookUpAccountURI. If the lookup succeeds, the best guess is replaced with the new URI so on subsequent requests, the
 // URI is correct.
 func accountLink(p *parser.Parser, data []byte, offset int) (int, ast.Node) {
 	data = data[offset:]
@@ -56,9 +57,8 @@ func accountLink(p *parser.Parser, data []byte, offset int) (int, ast.Node) {
 			if d != 0 {
 				// more than one @ is invalid
 				return 0, nil
-			} else {
-				d = i + 1 // skip @ of domain
 			}
+			d = i + 1 // skip @ of domain
 		}
 		i++
 	}
@@ -79,7 +79,7 @@ func accountLink(p *parser.Parser, data []byte, offset int) (int, ast.Node) {
 		log.Printf("Looking up %s\n", account)
 		uri = "https://" + string(domain) + "/users/" + string(user[1:])
 		accounts.uris[string(account)] = uri // prevent more lookings
-		go lookUpAccountUri(string(account), string(domain))
+		go lookUpAccountURI(string(account), string(domain))
 	}
 	link := &ast.Link{
 		AdditionalAttributes: []string{`class="account"`},
@@ -90,9 +90,9 @@ func accountLink(p *parser.Parser, data []byte, offset int) (int, ast.Node) {
 	return i, link
 }
 
-// lookUpAccountUri is called for accounts that haven't been seen before. It calls webfinger and parses the JSON. If
+// lookUpAccountURI is called for accounts that haven't been seen before. It calls webfinger and parses the JSON. If
 // possible, it extracts the link to the profile page and replaces the entry in accounts.
-func lookUpAccountUri(account, domain string) {
+func lookUpAccountURI(account, domain string) {
 	uri := "https://" + domain + "/.well-known/webfinger"
 	resp, err := http.Get(uri + "?resource=acct:" + account)
 	if err != nil {

accounts_test.go

@@ -1,8 +1,9 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestWebfingerParsing(t *testing.T) {

add.html

@@ -3,20 +3,23 @@
   <head>
     <meta charset="utf-8">
     <meta name="format-detection" content="telephone=no">
-    <meta name="viewport" content="width=device-width">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
     <title>Add to {{.Title}}</title>
     <style>
-html { max-width: 70ch; padding: 2ch; margin: auto; color: #111; background-color: #ffe; }
-form, textarea { width: 100%; }
+html { max-width: 70ch; padding: 1ch; height: calc(100% - 2ch); margin: auto }
+body { hyphens: auto; color: #111; background-color: #ffe; margin: 0; padding: 0; height: 100%; display: flex; flex-flow: column }
+form, textarea { box-sizing: border-box; width: 100%; font-size: inherit }
+#editor { flex: 1 1 auto; display: flex; flex-flow: column }
+textarea { flex: 1 1 auto }
     </style>
   </head>
   <body>
     <h1>Adding to {{.Title}}</h1>
-    <form action="/append/{{.Name}}" method="POST">
+    <form id="editor" action="/append/{{.Path}}" method="POST">
       <textarea name="body" rows="20" cols="80" placeholder="Text" lang="{{.Language}}" autofocus required></textarea>
       <p><label><input type="checkbox" name="notify" checked> Add link to <a href="/view/changes">the list of changes</a>.</label></p>
       <p><input type="submit" value="Add">
-        <a href="/view/{{.Name}}"><button type="button">Cancel</button></a></p>
+        <a href="/view/{{.Path}}"><button type="button">Cancel</button></a></p>
     </form>
   </body>
 </html>

add_append.go

@@ -48,15 +48,17 @@ func appendHandler(w http.ResponseWriter, r *http.Request, name string) {
 			return
 		}
 	}
-	http.Redirect(w, r, "/view/"+name, http.StatusFound)
+	http.Redirect(w, r, "/view/"+nameEscape(name), http.StatusFound)
 }
 
 func (p *Page) append(body []byte) {
 	// ensure an empty line at the end
-	if bytes.HasSuffix(p.Body, []byte("\n\n")) {
-	} else if bytes.HasSuffix(p.Body, []byte("\n")) {
+	switch {
+	case bytes.HasSuffix(p.Body, []byte("\n\n")):
+		// two newlines, nothing to add
+	case bytes.HasSuffix(p.Body, []byte("\n")):
 		p.Body = append(p.Body, '\n')
-	} else {
+	default:
 		p.Body = append(p.Body, '\n', '\n')
 	}
 	p.Body = append(p.Body, body...)

add_append_test.go

@@ -1,12 +1,14 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
+	"net/http"
 	"net/url"
 	"os"
 	"regexp"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestEmptyLineAdd(t *testing.T) {
@@ -34,15 +36,15 @@ It's not `)}
 	data.Set("body", "barbecue")
 
 	assert.Regexp(t, regexp.MustCompile("a distant fire"),
-		assert.HTTPBody(makeHandler(viewHandler, false),
+		assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet),
 			"GET", "/view/testdata/add/fire", nil))
 	assert.NotRegexp(t, regexp.MustCompile("a distant fire"),
-		assert.HTTPBody(makeHandler(addHandler, true),
+		assert.HTTPBody(makeHandler(addHandler, true, http.MethodGet),
 			"GET", "/add/testdata/add/fire", nil))
-	HTTPRedirectTo(t, makeHandler(appendHandler, true),
+	HTTPRedirectTo(t, makeHandler(appendHandler, true, http.MethodPost),
 		"POST", "/append/testdata/add/fire", data, "/view/testdata/add/fire")
 	assert.Regexp(t, regexp.MustCompile(`not</p>\s*<p>barbecue`),
-		assert.HTTPBody(makeHandler(viewHandler, false),
+		assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet),
 			"GET", "/view/testdata/add/fire", nil))
 }
 
@@ -57,7 +59,7 @@ Blue and green and pebbles gray
 	data := url.Values{}
 	data.Set("body", "Stand in cold water")
 	data.Add("notify", "on")
-	HTTPRedirectTo(t, makeHandler(appendHandler, true),
+	HTTPRedirectTo(t, makeHandler(appendHandler, true, http.MethodPost),
 		"POST", "/append/testdata/append/"+today+"-water",
 		data, "/view/testdata/append/"+today+"-water")
 	// The changes.md file was created

archive.go

@@ -16,7 +16,7 @@ import (
 // are skipped. If the environment variable ODDMU_FILTER is a regular expression that matches the starting directory,
 // this is a "separate site"; if the regular expression does not match, this is the "main site" and page names must also
 // not match the regular expression.
-func archiveHandler(w http.ResponseWriter, r *http.Request, path string) {
+func archiveHandler(w http.ResponseWriter, r *http.Request, name string) {
 	filter := os.Getenv("ODDMU_FILTER")
 	re, err := regexp.Compile(filter)
 	if err != nil {
@@ -24,30 +24,30 @@ func archiveHandler(w http.ResponseWriter, r *http.Request, path string) {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	matches := re.MatchString(path)
-	dir := filepath.Dir(filepath.FromSlash(path))
+	matches := re.MatchString(name)
+	dir := filepath.Dir(filepath.FromSlash(name))
 	z := zip.NewWriter(w)
-	err = filepath.Walk(dir, func(path string, info fs.FileInfo, err error) error {
+	err = filepath.Walk(dir, func(fp string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
 		if info.IsDir() {
-			if path != "." && strings.HasPrefix(filepath.Base(path), ".") {
+			if fp != "." && strings.HasPrefix(filepath.Base(fp), ".") {
 				return filepath.SkipDir
 			}
-		} else if !strings.HasPrefix(filepath.Base(path), ".") &&
-			(matches || !re.MatchString(path)) {
-			zf, err := z.Create(path)
+		} else if !strings.HasPrefix(filepath.Base(fp), ".") &&
+			(matches || !re.MatchString(filepath.ToSlash(fp))) {
+			zf, err := z.Create(fp)
 			if err != nil {
 				log.Println(err)
 				return err
 			}
-			file, err := os.Open(path)
+			f, err := os.Open(fp)
 			if err != nil {
 				log.Println(err)
 				return err
 			}
-			_, err = io.Copy(zf, file)
+			_, err = io.Copy(zf, f)
 			if err != nil {
 				log.Println(err)
 				return err

archive_test.go

@@ -2,10 +2,12 @@ package main
 
 import (
 	"archive/zip"
-	"github.com/stretchr/testify/assert"
+	"net/http"
 	"os"
 	"strings"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestArchive(t *testing.T) {
@@ -15,7 +17,7 @@ func TestArchive(t *testing.T) {
 	assert.NoError(t, os.WriteFile("testdata/archive/public/index.md", []byte("# Public\nChurch tower bells ringing\nA cold wind biting my ears\nWalk across the square"), 0644))
 	assert.NoError(t, os.WriteFile("testdata/archive/secret/index.md", []byte("# Secret\nMany years ago I danced\nSpending nights in clubs and bars\nIt is my secret"), 0644))
 	os.Setenv("ODDMU_FILTER", "^testdata/archive/secret/")
-	body := assert.HTTPBody(makeHandler(archiveHandler, true), "GET", "/archive/testdata/data.zip", nil)
+	body := assert.HTTPBody(makeHandler(archiveHandler, true, http.MethodGet), "GET", "/archive/testdata/data.zip", nil)
 	r, err := zip.NewReader(strings.NewReader(body), int64(len(body)))
 	assert.NoError(t, err, "Unzip")
 	names := []string{}

changes.go

@@ -20,10 +20,10 @@ func (p *Page) notify() error {
 	if p.Title == "" {
 		p.Title = p.Name
 	}
-	esc := nameEscape(path.Base(p.Name))
+	esc := nameEscape(p.Base())
 	link := "* [" + p.Title + "](" + esc + ")\n"
 	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(` + esc + `\)\n`)
-	dir := path.Dir(p.Name)
+	dir := p.Dir()
 	err := addLinkWithDate(path.Join(dir, "changes"), link, re)
 	if err != nil {
 		log.Printf("Updating changes in %s failed: %s", dir, err)
@@ -31,14 +31,14 @@ func (p *Page) notify() error {
 	}
 	if p.IsBlog() {
 		// Add to the index only if the blog post is for the current year
-		if strings.HasPrefix(path.Base(p.Name), time.Now().Format("2006")) {
+		if strings.HasPrefix(p.Base(), time.Now().Format("2006")) {
 			err := addLink(path.Join(dir, "index"), true, link, re)
 			if err != nil {
 				log.Printf("Updating index in %s failed: %s", dir, err)
 				return err
 			}
 		}
-		p.renderHtml() // to set hashtags
+		p.renderHTML() // to set hashtags
 		for _, hashtag := range p.Hashtags {
 			err := addLink(path.Join(dir, hashtag), false, link, re)
 			if err != nil {
@@ -98,12 +98,13 @@ func addLinkWithDate(name, link string, re *regexp.Regexp) error {
 		if loc[0] >= 14 {
 			re := regexp.MustCompile(`(?m)^## (\d\d\d\d-\d\d-\d\d)\n`)
 			m := re.Find(p.Body[loc[0]-14 : loc[0]])
-			if m == nil {
+			switch {
+			case m == nil:
 				// not a date: insert date, don't move insertion point
-			} else if string(p.Body[loc[0]-11:loc[0]-1]) == date {
+			case string(p.Body[loc[0]-11:loc[0]-1]) == date:
 				// if the date is our date, don't add it, don't move insertion point
 				addDate = false
-			} else {
+			default:
 				// if the date is not out date, move the insertion point
 				loc[0] -= 14
 			}
@@ -148,27 +149,61 @@ func addLink(name string, mandatory bool, link string, re *regexp.Regexp) error
 		if mandatory {
 			p = &Page{Name: name, Body: []byte(link)}
 			return p.save()
-		} else {
-			// Skip non-existing files: no error
-			return nil
 		}
+		// Skip non-existing files: no error
+		return nil
 	}
 	org := string(p.Body)
+	addLinkToPage(p, link, re)
+	// only save if something changed
+	if string(p.Body) != org {
+		return p.save()
+	}
+	return nil
+}
+
+func addLinkToPage(p *Page, link string, re *regexp.Regexp) {
 	// if a link exists, that's the place to insert the new link (in which case loc[0] and loc[1] differ)
 	loc := re.FindIndex(p.Body)
 	// if no link exists, find a good place to insert it
 	if loc == nil {
-		// locate the beginning of the list to insert the line
-		re = regexp.MustCompile(`(?m)^\* \[[^\]]+\]\([^\)]+\)\n`)
-		loc = re.FindIndex(p.Body)
-		if loc == nil {
-			// if no list was found, use the end of the page
-			m := len(p.Body)
-			loc = []int{m, m}
-		} else {
-			// if a list item was found, use just the beginning as insertion point
-			loc[1] = loc[0]
+		// locate the list items
+		re = regexp.MustCompile(`(?m)^\* \[[^\]]+\]\([^\)]+\)\n?`)
+		items := re.FindAllIndex(p.Body, -1)
+		first := false
+		pos := -1
+		// skip newer items
+		for i, it := range items {
+			// break if the current line is older (earlier in sort order)
+			stop := string(p.Body[it[0]:it[1]]) < link
+			// before the first match is always a good insert point
+			if i == 0 {
+				pos = it[0]
+				first = true
+			}
+			// if we're not stopping, then after the current item is a good insert point
+			if !stop {
+				pos = it[1]
+				first = false
+			} else {
+				break
+			}
 		}
+		// otherwise it's at the end of the list, after the last item
+		if pos == -1 && len(items) > 0 {
+			pos = items[len(items)-1][1]
+			first = false
+		}
+		// if no list was found, use the end of the page
+		if pos == -1 {
+			pos = len(p.Body)
+			first = true
+		}
+		if first {
+			p.Body, pos = ensureTwoNewlines(p.Body, pos)
+		}
+		// mimic a zero-width match at the insert point
+		loc = []int{pos, pos}
 	}
 	// start with new page content
 	r := []byte("")
@@ -179,9 +214,27 @@ func addLink(name string, mandatory bool, link string, re *regexp.Regexp) error
 	// append the rest
 	r = append(r, p.Body[loc[1]:]...)
 	p.Body = r
-	// only save if something changed
-	if string(p.Body) != org {
-		return p.save()
-	}
-	return nil
+}
+
+// ensureTwoNewlines makes sure that the two bytes before pos in buf are newlines. If the are not, newlines are inserted
+// and pos is increased. The new buf and pos is returned.
+func ensureTwoNewlines(buf []byte, pos int) ([]byte, int) {
+	var insert []byte
+	if pos >= 1 && buf[pos-1] != '\n' {
+		// add two newlines if buf doesn't end with a newline
+		insert = []byte("\n\n")
+	} else if pos >= 2 && buf[pos-2] != '\n' {
+		// add one newline if Body ends with just one newline
+		insert = []byte("\n")
+	}
+	if insert != nil {
+		r := []byte("")
+		r = append(r, buf[:pos]...)
+		r = append(r, insert...)
+		r = append(r, buf[pos:]...)
+		buf = r
+		pos += len(insert)
+
+	}
+	return buf, pos
 }

changes_test.go

@@ -1,14 +1,70 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"os"
+	"regexp"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 // Note TestEditSaveChanges and TestAddAppendChanges.
 
+func TestAddLinkToPageWithNoList(t *testing.T) {
+	// no newlines
+	title := "# Test"
+	p := &Page{Body: []byte(title)}
+	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(2025-08-08\)\n`)
+	link := "* [2025-08-08](2025-08-08)\n"
+	addLinkToPage(p, link, re)
+	assert.Equal(t, title+"\n\n"+link, string(p.Body))
+}
+
+func TestAddLinkToPageWithOlderLink(t *testing.T) {
+	// one newline
+	title := "# Test\n"
+	old := "* [2025-08-08](2025-08-08)\n"
+	p := &Page{Body: []byte(title + old)}
+	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(2025-08-10\)\n`)
+	link := "* [2025-08-10](2025-08-10)\n"
+	addLinkToPage(p, link, re)
+	assert.Equal(t, title+"\n"+link+old, string(p.Body))
+}
+
+func TestAddLinkToPageBetweenToExistingLinks(t *testing.T) {
+	title := "# Test\n\n"
+	new := "* [2025-08-10](2025-08-10)\n"
+	old := "* [2025-08-08](2025-08-08)\n"
+	p := &Page{Body: []byte(title + new + old)}
+	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(2025-08-09\)\n`)
+	link := "* [2025-08-09](2025-08-09)\n"
+	addLinkToPage(p, link, re)
+	assert.Equal(t, title+new+link+old, string(p.Body))
+}
+
+func TestAddLinkToPageBetweenToExistingLinks2(t *testing.T) {
+	title := "# Test\n\n"
+	new := "* [2025-08-10](2025-08-10)\n* [2025-08-09](2025-08-09)\n"
+	old := "* [2025-08-07](2025-08-07)\n"
+	p := &Page{Body: []byte(title + new + old)}
+	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(2025-08-08\)\n`)
+	link := "* [2025-08-08](2025-08-08)\n"
+	addLinkToPage(p, link, re)
+	assert.Equal(t, title+new+link+old, string(p.Body))
+}
+
+func TestAddLinkToPageAtTheEnd(t *testing.T) {
+	title := "# Test\n\n"
+	new := "* [2025-08-10](2025-08-10)\n"
+	old := "* [2025-08-08](2025-08-08)\n"
+	p := &Page{Body: []byte(title + new + old)}
+	re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(2025-08-07\)\n`)
+	link := "* [2025-08-07](2025-08-07)\n"
+	addLinkToPage(p, link, re)
+	assert.Equal(t, title+new+old+link, string(p.Body))
+}
+
 func TestChanges(t *testing.T) {
 	cleanup(t, "testdata/washing")
 	today := time.Now().Format(time.DateOnly)
@@ -48,7 +104,8 @@ Home away from home
 	assert.Contains(t, string(s), line)
 	s, err = os.ReadFile("testdata/changes/Haiku.md")
 	assert.NoError(t, err)
-	assert.Equal(t, intro+line, string(s))
+	// ensure an empty line when adding at the end of the page
+	assert.Equal(t, intro+"\n"+line, string(s))
 	assert.NoFileExists(t, "testdata/changes/Poetry.md")
 }
 
@@ -63,9 +120,9 @@ func TestChangesWithList(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// new line was added at the beginning of the list
-	assert.Equal(t, intro+d+new_line+line, string(s))
+	assert.Equal(t, intro+d+newLine+line, string(s))
 }
 
 func TestChangesWithOldList(t *testing.T) {
@@ -80,9 +137,9 @@ func TestChangesWithOldList(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// new line was added at the beginning of the list
-	assert.Equal(t, intro+d+new_line+"\n"+y+line, string(s))
+	assert.Equal(t, intro+d+newLine+"\n"+y+line, string(s))
 }
 
 func TestChangesWithOldDisappearingListAtTheEnd(t *testing.T) {
@@ -97,9 +154,9 @@ func TestChangesWithOldDisappearingListAtTheEnd(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// new line was added at the beginning of the list, with the new date, and the old date disappeared
-	assert.Equal(t, intro+d+new_line, string(s))
+	assert.Equal(t, intro+d+newLine, string(s))
 }
 
 func TestChangesWithOldDisappearingListInTheMiddle(t *testing.T) {
@@ -116,9 +173,9 @@ func TestChangesWithOldDisappearingListInTheMiddle(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// new line was added at the beginning of the list, with the new date, and the old date disappeared
-	assert.Equal(t, intro+d+new_line+"\n"+yy+other, string(s))
+	assert.Equal(t, intro+d+newLine+"\n"+yy+other, string(s))
 }
 
 func TestChangesWithListAtTheTop(t *testing.T) {
@@ -131,9 +188,9 @@ func TestChangesWithListAtTheTop(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// new line was added at the top, no error due to missing introduction
-	assert.Equal(t, d+new_line+line, string(s))
+	assert.Equal(t, d+newLine+line, string(s))
 }
 
 func TestChangesWithNoList(t *testing.T) {
@@ -146,9 +203,9 @@ func TestChangesWithNoList(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// into is still there and a new list was started
-	assert.Equal(t, intro+"\n\n"+d+new_line, string(s))
+	assert.Equal(t, intro+"\n\n"+d+newLine, string(s))
 }
 
 func TestChangesWithUpdate(t *testing.T) {
@@ -163,9 +220,9 @@ func TestChangesWithUpdate(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// the change was already listed, but now it moved up and has a new title
-	assert.Equal(t, intro+d+new_line+other, string(s))
+	assert.Equal(t, intro+d+newLine+other, string(s))
 }
 
 func TestChangesWithNoChangeToTheOrder(t *testing.T) {
@@ -180,9 +237,9 @@ func TestChangesWithNoChangeToTheOrder(t *testing.T) {
 	p.notify()
 	s, err := os.ReadFile("testdata/changes/changes.md")
 	assert.NoError(t, err)
-	new_line := "* [testdata/changes/alex](alex)\n"
+	newLine := "* [testdata/changes/alex](alex)\n"
 	// the change was already listed at the top, so just use the new title
-	assert.Equal(t, intro+d+new_line+other, string(s))
+	assert.Equal(t, intro+d+newLine+other, string(s))
 	// since the file has changed, a backup was necessary
 	assert.FileExists(t, "testdata/changes/changes.md~")
 }

diff.go

@@ -2,14 +2,14 @@ package main
 
 import (
 	"bytes"
-	"github.com/sergi/go-diff/diffmatchpatch"
 	"html"
 	"html/template"
 	"net/http"
-	"net/url"
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/sergi/go-diff/diffmatchpatch"
 )
 
 func diffHandler(w http.ResponseWriter, r *http.Request, name string) {
@@ -19,17 +19,13 @@ func diffHandler(w http.ResponseWriter, r *http.Request, name string) {
 		return
 	}
 	p.handleTitle(true)
-	p.renderHtml()
+	p.renderHTML()
 	renderTemplate(w, p.Dir(), "diff", p)
 }
 
-// Diff computes the diff for a page. At this point, renderHtml has already been called so the Name is escaped.
+// Diff computes the diff for a page. At this point, renderHTML has already been called so the Name is escaped.
 func (p *Page) Diff() template.HTML {
-	path, err := url.PathUnescape(p.Name)
-	if err != nil {
-		return template.HTML("Cannot unescape " + p.Name)
-	}
-	fp := filepath.FromSlash(path)
+	fp := filepath.FromSlash(p.Name)
 	a := fp + ".md~"
 	t1, err := os.ReadFile(a)
 	if err != nil {

diff.html

@@ -3,11 +3,11 @@
   <head>
     <meta charset="utf-8">
     <meta name="format-detection" content="telephone=no">
-    <meta name="viewport" content="width=device-width">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
     <title>{{.Title}}</title>
     <style>
-html { max-width: 70ch; padding: 1ch; margin: auto; color: #111; background-color: #ffe; }
-body { hyphens: auto; }
+html { max-width: 70ch; padding: 1ch; margin: auto; color: #111; background-color: #ffe }
+body { hyphens: auto }
 del  { background-color: #fab }
 ins  { background-color: #af8 }
 pre { white-space: normal; background-color: white; border: 1px solid #eee; padding: 1ch }
@@ -15,11 +15,11 @@ pre { white-space: normal; background-color: white; border: 1px solid #eee; padd
   </head>
   <body>
     <header>
-      <a href="/view/{{.Name}}">Back</a>
+      <a href="/view/{{.Path}}">Back</a>
     </header>
     <main id="main">
       <h1>{{.Title}}</h1>
-      <p>This is the diff between <a href="/view/{{.Name}}.md~">the backup</a> and <a href="/view/{{.Name}}.md">the current copy</a>.</p>
+      <p>This is the diff between <a href="/view/{{.Path}}.md~">the backup</a> and <a href="/view/{{.Path}}.md">the current copy</a>.</p>
       <pre>
 {{.Diff}}
       </pre>

diff_test.go

@@ -1,10 +1,12 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
+	"net/http"
 	"os"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDiff(t *testing.T) {
@@ -24,7 +26,7 @@ Oh so fresh, so warm.`
 	p.save()
 	p.Body = []byte(r)
 	p.save()
-	body := assert.HTTPBody(makeHandler(diffHandler, true),
+	body := assert.HTTPBody(makeHandler(diffHandler, true, http.MethodGet),
 		"GET", "/diff/testdata/diff/bread", nil)
 	assert.Contains(t, body, `<del>breathe</del>`)
 	assert.Contains(t, body, `<ins>whisper</ins>`)
@@ -47,7 +49,7 @@ Mispronouncing words`
 	p.save()
 	p.Body = []byte(r)
 	p.save()
-	body := assert.HTTPBody(makeHandler(diffHandler, true),
+	body := assert.HTTPBody(makeHandler(diffHandler, true, http.MethodGet),
 		"GET", "/diff/testdata/diff/coup%20de%20grace", nil)
 	assert.Contains(t, body, `<del>s</del>`)
 	assert.Contains(t, body, `<ins>ce</ins>`)
@@ -70,6 +72,7 @@ I hate the machine!`
 I shiver at home
 the monitor glares and moans
 my grey heart grows cold`
+	// create s and overwrite it with r
 	p := &Page{Name: "testdata/backup/cold", Body: []byte(s)}
 	p.save()
 	p = &Page{Name: "testdata/backup/cold", Body: []byte(r)}
@@ -78,19 +81,29 @@ my grey heart grows cold`
 	// diff from s to r:
 	assert.Contains(t, body, `<del>fear or cold, who knows?</del>`)
 	assert.Contains(t, body, `<ins>I hate the machine!</ins>`)
+	// save u
 	p = &Page{Name: "testdata/backup/cold", Body: []byte(u)}
 	p.save()
 	body = string(p.Diff())
-	// diff from s to u since r was not 60 min or older
+	// diff from s to u since r was not 60 min or older and so the backup is kept
 	assert.Contains(t, body, `<del>fear or cold, who knows?</del>`)
 	assert.Contains(t, body, `<ins>my grey heart grows cold</ins>`)
 	// set timestamp 2h in the past
 	ts := time.Now().Add(-2 * time.Hour)
 	assert.NoError(t, os.Chtimes("testdata/backup/cold.md~", ts, ts))
+	assert.NoError(t, os.Chtimes("testdata/backup/cold.md", ts, ts))
+	// save r
 	p = &Page{Name: "testdata/backup/cold", Body: []byte(r)}
 	p.save()
 	body = string(p.Diff())
-	// diff from u to r:
+	// diff from u to r since enough time has passed and the old backup is discarded
 	assert.Contains(t, body, `<del>my grey heart grows cold</del>`)
 	assert.Contains(t, body, `<ins>I hate the machine!</ins>`)
+	// save s
+	p = &Page{Name: "testdata/backup/cold", Body: []byte(s)}
+	p.save()
+	body = string(p.Diff())
+	// diff from u to s since this is still "the same" editing window
+	assert.Contains(t, body, `<del>my grey heart grows cold</del>`)
+	assert.Contains(t, body, `<ins>fear or cold, who knows?</ins>`)
 }

edit.html

@@ -3,24 +3,27 @@
   <head>
     <meta charset="utf-8">
     <meta name="format-detection" content="telephone=no">
-    <meta name="viewport" content="width=device-width">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
     <base href="/view/{{.Dir}}">
     <title>Editing {{.Title}}</title>
     <style>
-html { max-width: 70ch; padding: 2ch; margin: auto; color: #111; background-color: #ffe; }
-form, textarea { width: 100%; }
+html { max-width: 70ch; padding: 1ch; height: calc(100% - 2ch); margin: auto }
+body { hyphens: auto; color: #111; background-color: #ffe; margin: 0; padding: 0; height: 100%; display: flex; flex-flow: column }
+form, textarea { box-sizing: border-box; width: 100%; font-size: inherit }
+#editor { flex: 1 1 auto; display: flex; flex-flow: column }
+textarea { flex: 1 1 auto }
     </style>
   </head>
   <body>
     <h1>Editing {{.Title}}</h1>
-    <form action="/save/{{.Name}}" method="POST">
+    <form id="editor" action="/save/{{.Path}}" method="POST">
       <textarea name="body" rows="20" cols="80" placeholder="# Title
 
 Text" lang="{{.Language}}" autofocus>{{printf "%s" .Body}}</textarea>
       <p><label><input type="checkbox" name="notify" checked> Add link to <a href="changes">the list of changes</a>.</label></p>
       <p><input type="submit" value="Save">
-        <button formaction="/preview/{{.Name}}" type="submit">Preview</button>
-        <a href="/view/{{.Name}}"><button type="button">Cancel</button></a></p>
+        <button formaction="/preview/{{.Path}}" type="submit">Preview</button>
+        <a href="/view/{{.Path}}"><button type="button">Cancel</button></a></p>
     </form>
   </body>
 </html>

edit_save.go

@@ -41,5 +41,5 @@ func saveHandler(w http.ResponseWriter, r *http.Request, name string) {
 			return
 		}
 	}
-	http.Redirect(w, r, "/view/"+name, http.StatusFound)
+	http.Redirect(w, r, "/view/"+nameEscape(name), http.StatusFound)
 }

edit_save_test.go

@@ -1,12 +1,13 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"net/http"
 	"net/url"
 	"os"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestEditSave(t *testing.T) {
@@ -16,24 +17,24 @@ func TestEditSave(t *testing.T) {
 	data.Set("body", "Hallo!")
 
 	// View of the non-existing page redirects to the edit page
-	HTTPRedirectTo(t, makeHandler(viewHandler, false),
+	HTTPRedirectTo(t, makeHandler(viewHandler, false, http.MethodGet),
 		"GET", "/view/testdata/save/alex", nil, "/edit/testdata/save/alex")
 	// Edit page can be fetched
-	assert.HTTPStatusCode(t, makeHandler(editHandler, true),
+	assert.HTTPStatusCode(t, makeHandler(editHandler, true, http.MethodGet),
 		"GET", "/edit/testdata/save/alex", nil, 200)
 	// Posting to the save URL saves a page
-	HTTPRedirectTo(t, makeHandler(saveHandler, true),
+	HTTPRedirectTo(t, makeHandler(saveHandler, true, http.MethodPost),
 		"POST", "/save/testdata/save/alex", data, "/view/testdata/save/alex")
 	// Page now contains the text
-	assert.Contains(t, assert.HTTPBody(makeHandler(viewHandler, false),
+	assert.Contains(t, assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet),
 		"GET", "/view/testdata/save/alex", nil),
 		"Hallo!")
 	// Delete the page and you're sent to the empty page
 	data.Set("body", "")
-	HTTPRedirectTo(t, makeHandler(saveHandler, true),
+	HTTPRedirectTo(t, makeHandler(saveHandler, true, http.MethodPost),
 		"POST", "/save/testdata/save/alex", data, "/view/testdata/save/alex")
 	// Viewing the non-existing page redirects to the edit page (like in the beginning)
-	HTTPRedirectTo(t, makeHandler(viewHandler, false),
+	HTTPRedirectTo(t, makeHandler(viewHandler, false, http.MethodGet),
 		"GET", "/view/testdata/save/alex", nil, "/edit/testdata/save/alex")
 }
 
@@ -44,7 +45,7 @@ func TestEditSaveChanges(t *testing.T) {
 	data.Add("notify", "on")
 	today := time.Now().Format("2006-01-02")
 	// Posting to the save URL saves a page
-	HTTPRedirectTo(t, makeHandler(saveHandler, true),
+	HTTPRedirectTo(t, makeHandler(saveHandler, true, http.MethodPost),
 		"POST", "/save/testdata/notification/"+today,
 		data, "/view/testdata/notification/"+today)
 	// The changes.md file was created
@@ -73,15 +74,15 @@ func TestEditId(t *testing.T) {
 	cleanup(t, "testdata/id")
 	data := url.Values{}
 	data.Set("id", "testdata/id/alex")
-	assert.HTTPStatusCode(t, makeHandler(editHandler, true),
+	assert.HTTPStatusCode(t, makeHandler(editHandler, true, http.MethodGet),
 		"GET", "/edit/", data, http.StatusBadRequest,
 		"No slashes in id")
 	data.Set("id", ".alex")
-	assert.HTTPStatusCode(t, makeHandler(editHandler, true),
+	assert.HTTPStatusCode(t, makeHandler(editHandler, true, http.MethodGet),
 		"GET", "/edit/", data, http.StatusForbidden,
 		"No hidden files")
 	data.Set("id", "alex")
-	assert.Contains(t, assert.HTTPBody(makeHandler(editHandler, true),
+	assert.Contains(t, assert.HTTPBody(makeHandler(editHandler, true, http.MethodGet),
 		"GET", "/edit/testdata/id/", data),
 		"Editing testdata/id/alex")
 }

export_cmd.go

@@ -4,13 +4,14 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
 	htmlTemplate "html/template"
 	"io"
 	"os"
 	"strings"
 	textTemplate "text/template"
 	"time"
+
+	"github.com/google/subcommands"
 )
 
 type exportCmd struct {
@@ -34,10 +35,6 @@ func (*exportCmd) Usage() string {
   it:
 
     oddmu export > /tmp/export.rss
-
-  Options:
-
-  -template "filename" specifies the template to use (default: feed.html)
 `
 }
 
@@ -66,7 +63,7 @@ func exportCli(w io.Writer, templateName string, idx *indexStore) subcommands.Ex
 			return subcommands.ExitFailure
 		}
 		p.handleTitle(false)
-		p.renderHtml()
+		p.renderHTML()
 		fi, err := os.Stat(name + ".md")
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "Stat %s: %s\n", name, err)
@@ -76,7 +73,7 @@ func exportCli(w io.Writer, templateName string, idx *indexStore) subcommands.Ex
 		it.Title = p.Title
 		it.Name = p.Name
 		it.Body = p.Body
-		it.Html = htmlTemplate.HTML(htmlTemplate.HTMLEscaper(p.Html))
+		it.HTML = htmlTemplate.HTML(htmlTemplate.HTMLEscaper(p.HTML))
 		it.Hashtags = p.Hashtags
 		items = append(items, it)
 	}

export_cmd_test.go

@@ -2,19 +2,20 @@ package main
 
 import (
 	"bytes"
-	"github.com/google/subcommands"
-	"github.com/stretchr/testify/assert"
 	"os"
 	"regexp"
 	"testing"
+
+	"github.com/google/subcommands"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestExportCmd(t *testing.T) {
 	b := new(bytes.Buffer)
 	s := exportCli(b, "feed.html", minimalIndex(t))
 	assert.Equal(t, subcommands.ExitSuccess, s)
-	assert.Contains(t, b.String(), "<title>Oddµ: A minimal wiki</title>")
-	assert.Contains(t, b.String(), "<title>Welcome to Oddµ</title>")
+	assert.Contains(t, b.String(), "<title>Oddμ: A minimal wiki</title>")
+	assert.Contains(t, b.String(), "<title>Welcome to Oddμ</title>")
 }
 
 func TestExportCmdLanguage(t *testing.T) {
@@ -40,7 +41,7 @@ func TestExportCmdJsonFeed(t *testing.T) {
       "title": "{{.Title}}",
       "language": "{{.Language}}"
       "date_modified": "{{.Date}}",
-      "content_html": "{{.Html}}",
+      "content_html": "{{.HTML}}",
       "tags": [{{range .Hashtags}}"{{.}}",{{end}}""],
     },{{end}}
     {}
@@ -50,6 +51,6 @@ func TestExportCmdJsonFeed(t *testing.T) {
 	b := new(bytes.Buffer)
 	s := exportCli(b, "testdata/json/template.json", minimalIndex(t))
 	assert.Equal(t, subcommands.ExitSuccess, s)
-	assert.Contains(t, b.String(), `"title": "Oddµ: A minimal wiki"`)
-	assert.Regexp(t, regexp.MustCompile("&lt;h1.*&gt;Welcome to Oddµ&lt;/h1&gt;"), b.String()) // skip id
+	assert.Contains(t, b.String(), `"title": "Oddμ: A minimal wiki"`)
+	assert.Regexp(t, regexp.MustCompile("&lt;h1.*&gt;Welcome to Oddμ&lt;/h1&gt;"), b.String()) // skip id
 }

feed.go

@@ -2,13 +2,24 @@ package main
 
 import (
 	"bytes"
-	"github.com/gomarkdown/markdown"
-	"github.com/gomarkdown/markdown/ast"
 	"html/template"
 	"os"
 	"path"
 	"path/filepath"
+	"strconv"
 	"time"
+
+	"github.com/gomarkdown/markdown"
+	"github.com/gomarkdown/markdown/ast"
+)
+
+type dateSource int
+
+const (
+	// ModTime means that the feed item date is based on the page file's last modification date.
+	ModTime dateSource = iota
+	// URL means that the feed item date is based on the ISO date contained in the page name.
+	URL
 )
 
 // Item is a Page plus a Date.
@@ -34,19 +45,47 @@ type Feed struct {
 	// Items are based on the pages linked in list items starting with an asterisk ("*"). Links in
 	// list items starting with a minus ("-") are ignored!
 	Items []Item
+
+	// From is where the item number where the feed starts. It defaults to 0. Prev and From are the item numbers of
+	// The previous and the next page of the feed. N is the number of items per page. Next goes further into the
+	// past.
+	Prev, Next, From, N int
+
+	// When paging through the index or year pages, link to the next or previous years. NextYear goes further into
+	// the past (is smaller).
+	PrevYear, NextYear int
+
+	// Complete is set when there is no pagination.
+	Complete bool
 }
 
 // feed returns a RSS 2.0 feed for any page. The feed items it contains are the pages linked from in list items starting
-// with an asterisk ("*").
-func feed(p *Page, ti time.Time) *Feed {
+// with an asterisk ("*"). The feed starts from a certain item and contains n items. If n is 0, the feed is complete
+// (unpaginated). The
+func feed(p *Page, ti time.Time, from, n int, source dateSource) *Feed {
 	feed := new(Feed)
 	feed.Name = p.Name
 	feed.Title = p.Title
 	feed.Date = ti.Format(time.RFC1123Z)
+	feed.From = from
+	feed.N = n
+	switch {
+	case n == 0:
+		feed.Complete = true
+	case from > n:
+		feed.Prev = from - n
+	default:
+		year, err := p.BlogYear()
+		if err == nil && p.ArchiveExists(year+1) {
+			feed.PrevYear = year + 1
+		}
+	}
+	to := from + n
 	parser, _ := wikiParser()
 	doc := markdown.Parse(p.Body, parser)
 	items := make([]Item, 0)
 	inListItem := false
+	i := 0
 	ast.WalkFunc(doc, func(node ast.Node, entering bool) ast.WalkStatus {
 		// set the flag if we're in a list item
 		listItem, ok := node.(*ast.ListItem)
@@ -58,33 +97,81 @@ func feed(p *Page, ti time.Time) *Feed {
 		if !inListItem || !entering {
 			return ast.GoToNext
 		}
-		// if we're in a link and it's local
+		// if we're in a link and it's not local
 		link, ok := node.(*ast.Link)
 		if !ok || bytes.Contains(link.Destination, []byte("//")) {
 			return ast.GoToNext
 		}
-		name := path.Join(path.Dir(p.Name), string(link.Destination))
-		fi, err := os.Stat(filepath.FromSlash(name) + ".md")
-		if err != nil {
+		// if we're too early or too late
+		i++
+		if i <= from {
 			return ast.GoToNext
 		}
+		if n > 0 && i > to {
+			// set if it's likely that more items exist
+			feed.Next = to
+			return ast.Terminate
+		}
+		// i counts links, not actual existing pages
+		name := path.Join(p.Dir(), string(link.Destination))
 		p2, err := loadPage(name)
 		if err != nil {
 			return ast.GoToNext
 		}
 		p2.handleTitle(false)
-		p2.renderHtml()
-		it := Item{Date: fi.ModTime().Format(time.RFC1123Z)}
+		p2.renderHTML()
+		date, err := p2.Date(source)
+		if err != nil {
+			return ast.GoToNext
+		}
+		it := Item{Date: date.Format(time.RFC1123Z)}
 		it.Title = p2.Title
 		it.Name = p2.Name
-		it.Html = template.HTML(template.HTMLEscaper(p2.Html))
+		it.HTML = template.HTML(template.HTMLEscaper(p2.HTML))
 		it.Hashtags = p2.Hashtags
 		items = append(items, it)
-		if len(items) >= 10 {
-			return ast.Terminate
-		}
 		return ast.GoToNext
 	})
+	// If there are no more "next" links but there is a next page, add it.
+	if feed.Next == 0 {
+		year, err := p.BlogYear()
+		if err == nil && p.ArchiveExists(year-1) {
+			feed.NextYear = year - 1
+		}
+	}
 	feed.Items = items
 	return feed
 }
+
+// Date returns the page's last modification date if the data source is ModTime. If the data source is URL, then the
+// first 10 characters are parsed as an ISO date string and the time returned is for that date, 0:00, UTC.
+func (p *Page) Date(source dateSource) (time.Time, error) {
+	if source == URL && p.IsBlog() {
+		name := path.Base(p.Name)
+		return time.Parse(time.DateOnly, name[0:10])
+	}
+	return p.ModTime()
+}
+
+// BlogYear returns the current year if the page name is "index". If the page name is a number such as "2026" then
+// this is parsed as an integer and returned.
+func (p *Page) BlogYear() (int, error) {
+	name := path.Base(p.Name)
+	if name == "index" {
+		return time.Now().Year(), nil
+	}
+	ui, err := strconv.ParseUint(name, 10, 16)
+	if err == nil {
+		return int(ui), nil
+	}
+	return 0, err
+}
+
+// ArchiveExists returns true if a page exists in the same directory as the current one with a page name matching
+// the year given.
+func (p *Page) ArchiveExists(year int) bool {
+	name := path.Join(p.Dir(), strconv.Itoa(year))
+	fp := filepath.FromSlash(name) + ".md"
+	_, err := os.Stat(fp)
+	return err == nil
+}

feed.html

@@ -1,11 +1,18 @@
-<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"
+     xmlns:fh="http://purl.org/syndication/history/1.0">
   <channel>
     <docs>http://blogs.law.harvard.edu/tech/rss</docs>
     <title>{{.Title}}</title>
     <link>https://example.org/</link>
     <managingEditor>you@example.org (Your Name)</managingEditor>
     <webMaster>you@example.org (Your Name)</webMaster>
-    <atom:link href="https://example.org/view/{{.Name}}.rss" rel="self" type="application/rss+xml"/>
+    <atom:link href="https://example.org/view/{{.Path}}.rss" rel="self" type="application/rss+xml"/>{{if .From}}
+    <atom:link href="https://example.org/view/{{.Path}}.rss?from={{.Prev}}&amp;n={{.N}}" rel="previous" type="application/rss+xml"/>{{end}}{{if .PrevYear}}
+    <atom:link href="https://example.org/view/{{.Dir}}{{.PrevYear}}.rss?n={{.N}}" rel="previous" type="application/rss+xml"/>{{end}}{{if .Next}}
+    <atom:link href="https://example.org/view/{{.Path}}.rss?from={{.Next}}&amp;n={{.N}}" rel="next" type="application/rss+xml"/>{{end}}{{if .NextYear}}
+    <atom:link href="https://example.org/view/{{.Dir}}{{.NextYear}}.rss?n={{.N}}" rel="next" type="application/rss+xml"/>{{end}}{{if .Complete}}
+    <generator>Oddμ https://src.alexschroeder.ch/oddmu.git/</generator>
+    <fh:complete/>{{end}}
     <description>This is the digital garden of Your Name.</description>
     <image>
       <url>https://example.org/view/logo.jpg</url>
@@ -15,9 +22,9 @@
     {{range .Items}}
     <item>
       <title>{{.Title}}</title>
-      <link>https://example.org/view/{{.Name}}</link>
-      <guid>https://example.org/view/{{.Name}}</guid>
-      <description>{{.Html}}</description>
+      <link>https://example.org/view/{{.Path}}</link>
+      <guid>https://example.org/view/{{.Path}}</guid>
+      <description>{{.HTML}}</description>
       <pubDate>{{.Date}}</pubDate>
       {{range .Hashtags}}
       <category>{{.}}</category>

feed_cmd.go

@@ -0,0 +1,90 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/google/subcommands"
+)
+
+type feedCmd struct {
+}
+
+func (*feedCmd) Name() string     { return "feed" }
+func (*feedCmd) Synopsis() string { return "render a page as feed" }
+func (*feedCmd) Usage() string {
+	return `feed <page name> ...:
+  Render one or more pages as a single feed.
+  Use a single - to read Markdown from stdin.
+`
+}
+
+func (cmd *feedCmd) SetFlags(f *flag.FlagSet) {
+}
+
+func (cmd *feedCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	if len(f.Args()) == 0 {
+		fmt.Fprint(os.Stderr, cmd.Usage())
+		return subcommands.ExitFailure
+	}
+	return feedCli(os.Stdout, f.Args())
+}
+
+func feedCli(w io.Writer, args []string) subcommands.ExitStatus {
+	if len(args) == 1 && args[0] == "-" {
+		body, err := io.ReadAll(os.Stdin)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Cannot read from stdin: %s\n", err)
+			return subcommands.ExitFailure
+		}
+		p := &Page{Name: "stdin", Body: body}
+		return p.printFeed(w, time.Now())
+	}
+	for _, name := range args {
+		if !strings.HasSuffix(name, ".md") {
+			fmt.Fprintf(os.Stderr, "%s does not end in '.md'\n", name)
+			return subcommands.ExitFailure
+		}
+		name = name[0 : len(name)-3]
+		p, err := loadPage(name)
+		p.handleTitle(false)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Cannot load %s: %s\n", name, err)
+			return subcommands.ExitFailure
+		}
+		ti, _ := p.ModTime()
+		status := p.printFeed(w, ti)
+		if status != subcommands.ExitSuccess {
+			return status
+		}
+	}
+	return subcommands.ExitSuccess
+}
+
+// printFeed prints the complete feed for a page (unpaginated).
+func (p *Page) printFeed(w io.Writer, ti time.Time) subcommands.ExitStatus {
+	f := feed(p, ti, 0, 0, URL)
+	if len(f.Items) == 0 {
+		fmt.Fprintf(os.Stderr, "Empty feed for %s\n", p.Name)
+		return subcommands.ExitFailure
+	}
+	_, err := w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>`))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Cannot write prefix: %s\n", err)
+		return subcommands.ExitFailure
+	}
+	initTemplates()
+	templates.RLock()
+	defer templates.RUnlock()
+	err = templates.template["feed.html"].Execute(w, f)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Cannot execute template: %s\n", err)
+		return subcommands.ExitFailure
+	}
+	return subcommands.ExitSuccess
+}

feed_cmd_test.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/google/subcommands"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFeedCmd(t *testing.T) {
+	cleanup(t, "testdata/complete")
+	p := &Page{Name: "testdata/complete/2025-12-01", Body: []byte("# 2025-12-01\n")}
+	p.save()
+	p = &Page{Name: "testdata/complete/index", Body: []byte(`# Index
+* [2025-12-01](2025-12-01)
+`)}
+	p.save()
+
+	b := new(bytes.Buffer)
+	s := feedCli(b, []string{"testdata/complete/index.md"})
+	assert.Equal(t, subcommands.ExitSuccess, s)
+	assert.Contains(t, b.String(), "<fh:complete/>")
+	assert.Contains(t, b.String(), "<title>2025-12-01</title>")
+	assert.Contains(t, b.String(), "<pubDate>Mon, 01 Dec 2025 00:00:00") // ignore timezone
+}

feed_test.go

@@ -1,25 +1,27 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
+	"fmt"
 	"net/http"
+	"net/url"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestFeed(t *testing.T) {
 	assert.Contains(t,
-		assert.HTTPBody(makeHandler(viewHandler, false), "GET", "/view/index.rss", nil),
-		"Welcome to Oddµ")
+		assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/index.rss", nil),
+		"Welcome to Oddμ")
 }
 
 func TestNoFeed(t *testing.T) {
 	assert.HTTPStatusCode(t,
-		makeHandler(viewHandler, false), "GET", "/view/no-feed.rss", nil, http.StatusNotFound)
+		makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/no-feed.rss", nil, http.StatusNotFound)
 }
 
 func TestFeedItems(t *testing.T) {
 	cleanup(t, "testdata/feed")
-	index.load()
 
 	p1 := &Page{Name: "testdata/feed/cactus", Body: []byte(`# Cactus
 Green head and white hair
@@ -44,7 +46,7 @@ Writing poems about plants.
 * [My Dragon Tree](dragon)`)}
 	p3.save()
 
-	body := assert.HTTPBody(makeHandler(viewHandler, false), "GET", "/view/testdata/feed/plants.rss", nil)
+	body := assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/feed/plants.rss", nil)
 	assert.Contains(t, body, "<title>Plants</title>")
 	assert.Contains(t, body, "<title>Cactus</title>")
 	assert.Contains(t, body, "<title>Dragon</title>")
@@ -53,3 +55,148 @@ Writing poems about plants.
 	assert.Contains(t, body, "<category>Succulent</category>")
 	assert.Contains(t, body, "<category>Palmtree</category>")
 }
+
+func TestFeedPagination(t *testing.T) {
+	cleanup(t, "testdata/pagination")
+
+	p := &Page{Name: "testdata/pagination/one", Body: []byte("# One\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/two", Body: []byte("# Two\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/three", Body: []byte("# Three\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/four", Body: []byte("# Four\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/five", Body: []byte("# Five\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/six", Body: []byte("# Six\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/seven", Body: []byte("# Seven\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/eight", Body: []byte("# Eight\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/nine", Body: []byte("# Nine\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/ten", Body: []byte("# Ten\n")}
+	p.save()
+
+	p = &Page{Name: "testdata/pagination/index", Body: []byte(`# Index
+* [one](one)
+* [two](two)
+* [three](three)
+* [four](four)
+* [five](five)
+* [six](six)
+* [seven](seven)
+* [eight](eight)
+* [nine](nine)
+* [ten](ten)
+`)}
+	p.save()
+
+	body := assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", nil)
+	assert.Contains(t, body, "<title>One</title>")
+	assert.Contains(t, body, "<title>Ten</title>")
+	assert.NotContains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=10&n=10" rel="next" type="application/rss+xml"/>`)
+
+	p = &Page{Name: "testdata/pagination/eleven", Body: []byte("# Eleven\n")}
+	p.save()
+	p = &Page{Name: "testdata/pagination/index", Body: []byte(`# Index
+* [one](one)
+* [two](two)
+* [three](three)
+* [four](four)
+* [five](five)
+* [six](six)
+* [seven](seven)
+* [eight](eight)
+* [nine](nine)
+* [ten](ten)
+* [eleven](eleven)
+`)}
+	p.save()
+
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", nil)
+	assert.NotContains(t, body, "<title>Eleven</title>")
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=10&amp;n=10" rel="next" type="application/rss+xml"/>`)
+
+	params := url.Values{}
+	params.Set("n", "0")
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", params)
+	assert.Contains(t, body, "<title>Eleven</title>")
+	assert.Contains(t, body, `<fh:complete/>`)
+
+	params = url.Values{}
+	params.Set("n", "3")
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", params)
+	assert.Contains(t, body, "<title>One</title>")
+	assert.Contains(t, body, "<title>Three</title>")
+	assert.NotContains(t, body, "<title>Four</title>")
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=3&amp;n=3" rel="next" type="application/rss+xml"/>`)
+
+	params = url.Values{}
+	params.Set("from", "3")
+	params.Set("n", "3")
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", params)
+	assert.NotContains(t, body, "<title>Three</title>")
+	assert.Contains(t, body, "<title>Four</title>")
+	assert.Contains(t, body, "<title>Six</title>")
+	assert.NotContains(t, body, "<title>Seven</title>")
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=0&amp;n=3" rel="previous" type="application/rss+xml"/>`)
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=6&amp;n=3" rel="next" type="application/rss+xml"/>`)
+
+	params = url.Values{}
+	params.Set("from", "2")
+	params.Set("n", "3")
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET", "/view/testdata/pagination/index.rss", params)
+	assert.NotContains(t, body, "<title>Two</title>")
+	assert.Contains(t, body, "<title>Three</title>")
+	assert.Contains(t, body, "<title>Five</title>")
+	assert.NotContains(t, body, "<title>Six</title>")
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=0&amp;n=3" rel="previous" type="application/rss+xml"/>`)
+	assert.Contains(t, body, `<atom:link href="https://example.org/view/testdata/pagination/index.rss?from=5&amp;n=3" rel="next" type="application/rss+xml"/>`)
+}
+
+func TestFeedYearArchives(t *testing.T) {
+	cleanup(t, "testdata/archives")
+	p := &Page{Name: "testdata/archives/index", Body: []byte(`# Archives
+my bent fingers hurt
+keyboard rattling in the dark
+but no child in sight
+`)}
+	p.save()
+	body := assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET",
+		"/view/testdata/archives/index.rss", nil)
+	year, err := p.BlogYear()
+	assert.Greater(t, year, 0)
+	assert.NoError(t, err)
+	prevLink := fmt.Sprintf(`<atom:link href="https://example.org/view/testdata/archives/%d.rss?n=10" rel="previous" type="application/rss+xml"/>`, year+1)
+	nextLink := fmt.Sprintf(`<atom:link href="https://example.org/view/testdata/archives/%d.rss?n=10" rel="next" type="application/rss+xml"/>`, year-1)
+	assert.NotContains(t, body, prevLink)
+	assert.NotContains(t, body, nextLink)
+
+	p = &Page{Name: fmt.Sprintf("testdata/archives/%d", year-1), Body: []byte(`# Previously
+I have seen it all
+invasion and denial
+and cold winter hearts
+`)}
+	p.save()
+
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET",
+		"/view/testdata/archives/index.rss", nil)
+	assert.NotContains(t, body, prevLink)
+	assert.Contains(t, body, nextLink)
+
+	p = &Page{Name: fmt.Sprintf("testdata/archives/%d", year+1), Body: []byte(`# Coming
+A night of thunder
+lightning, children, it's the war
+of our New Year's Eve
+`)}
+	p.save()
+
+	body = assert.HTTPBody(makeHandler(viewHandler, false, http.MethodGet), "GET",
+		"/view/testdata/archives/index.rss", nil)
+	assert.Contains(t, body, prevLink)
+	assert.Contains(t, body, nextLink)
+
+}

go.mod

@@ -1,40 +1,40 @@
-module alexschroeder.ch/cgit/oddmu
+module src.alexschroeder.ch/oddmu
 
-go 1.22
-
-toolchain go1.22.3
+go 1.25
 
 require (
 	github.com/disintegration/imaging v1.6.2
-	github.com/edwvee/exiffix v0.0.0-20210922235313-0f6cbda5e58f
-	github.com/fsnotify/fsnotify v1.7.0
-	github.com/gabriel-vasile/mimetype v1.4.3
-	github.com/gomarkdown/markdown v0.0.0-20240930133403-7e0a027d98c5
+	github.com/edwvee/exiffix v0.0.0-20240229113213-0dbb146775be
+	github.com/fsnotify/fsnotify v1.9.0
+	github.com/gabriel-vasile/mimetype v1.4.13
+	github.com/gen2brain/heic v0.4.9
+	github.com/gen2brain/webp v0.5.5
+	github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a
 	github.com/google/subcommands v1.2.0
 	github.com/hexops/gotextdiff v1.0.3
-	github.com/microcosm-cc/bluemonday v1.0.26
+	github.com/microcosm-cc/bluemonday v1.0.27
 	github.com/muesli/reflow v0.3.0
 	github.com/pemistahl/lingua-go v1.4.0
-	github.com/sergi/go-diff v1.3.1
+	github.com/sergi/go-diff v1.4.0
 	github.com/stretchr/testify v1.8.4
-	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a
+	golang.org/x/exp v0.0.0-20260112195511-716be5621a96
 )
 
 require (
 	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/ebitengine/purego v0.7.1 // indirect
-	github.com/gen2brain/heic v0.3.1 // indirect
+	github.com/ebitengine/purego v0.9.1 // indirect
 	github.com/gorilla/css v1.0.1 // indirect
-	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/rivo/uniseg v0.4.6 // indirect
 	github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd // indirect
-	github.com/shopspring/decimal v1.3.1 // indirect
-	github.com/tetratelabs/wazero v1.7.3 // indirect
-	golang.org/x/image v0.15.0 // indirect
-	golang.org/x/net v0.20.0 // indirect
-	golang.org/x/sys v0.21.0 // indirect
-	google.golang.org/protobuf v1.32.0 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/tetratelabs/wazero v1.11.0 // indirect
+	golang.org/x/image v0.35.0 // indirect
+	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,28 +1,30 @@
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/clipperhouse/stringish v0.1.1 h1:+NSqMOr3GR6k1FdRhhnXrLfztGzuG+VuFDfatpWHKCs=
+github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA=
+github.com/clipperhouse/uax29/v2 v2.5.0 h1:x7T0T4eTHDONxFJsL94uKNKPHrclyFI0lm7+w94cO8U=
+github.com/clipperhouse/uax29/v2 v2.5.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
 github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
-github.com/ebitengine/purego v0.7.1 h1:6/55d26lG3o9VCZX8lping+bZcmShseiqlh2bnUDiPA=
-github.com/ebitengine/purego v0.7.1/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
-github.com/edwvee/exiffix v0.0.0-20210922235313-0f6cbda5e58f h1:RMnUwTnNR070mFAEIoqMYjNirHj8i0h79VXTYyBCyVA=
-github.com/edwvee/exiffix v0.0.0-20210922235313-0f6cbda5e58f/go.mod h1:KoE3Ti1qbQXCb3s/XGj0yApHnbnNnn1bXTtB5Auq/Vc=
-github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
-github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
-github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
-github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
-github.com/gen2brain/heic v0.0.0-20230113233934-ca402e77a786 h1:zvgtcRb2B5gynWjm+Fc9oJZPHXwmcgyH0xCcNm6Rmo4=
-github.com/gen2brain/heic v0.0.0-20230113233934-ca402e77a786/go.mod h1:aKVJoQ0cc9K5Xb058XSnnAxXLliR97qbSqWBlm5ca1E=
-github.com/gen2brain/heic v0.3.1 h1:ClY5YTdXdIanw7pe9ZVUM9XcsqH6CCCa5CZBlm58qOs=
-github.com/gen2brain/heic v0.3.1/go.mod h1:m2sVIf02O7wfO8mJm+PvE91lnq4QYJy2hseUon7So10=
-github.com/gomarkdown/markdown v0.0.0-20240730141124-034f12af3bf6 h1:ZPy+2XJ8u0bB3sNFi+I72gMEMS7MTg7aZCCXPOjV8iw=
-github.com/gomarkdown/markdown v0.0.0-20240730141124-034f12af3bf6/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
-github.com/gomarkdown/markdown v0.0.0-20240930133403-7e0a027d98c5 h1:qIhG9h8tUzKsVHn0iHtWUohq7Ve7btgA8rGp7TvrIHw=
-github.com/gomarkdown/markdown v0.0.0-20240930133403-7e0a027d98c5/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
-github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
-github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/ebitengine/purego v0.9.1 h1:a/k2f2HQU3Pi399RPW1MOaZyhKJL9w/xFpKAg4q1s0A=
+github.com/ebitengine/purego v0.9.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/edwvee/exiffix v0.0.0-20240229113213-0dbb146775be h1:FNPYI8/ifKGW7kdBdlogyGGaPXZmOXBbV1uz4Amr3s0=
+github.com/edwvee/exiffix v0.0.0-20240229113213-0dbb146775be/go.mod h1:G3dK5MziX9e4jUa8PWjowCOPCcyQwxsZ5a0oYA73280=
+github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
+github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/gabriel-vasile/mimetype v1.4.13 h1:46nXokslUBsAJE/wMsp5gtO500a4F3Nkz9Ufpk2AcUM=
+github.com/gabriel-vasile/mimetype v1.4.13/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
+github.com/gen2brain/heic v0.4.9 h1:sHM7kjMV2+AlrSfYNsJiD0NrqAJqIMWAOqMSZ0HXrU8=
+github.com/gen2brain/heic v0.4.9/go.mod h1:0/0SrVQnUhOA3ekFY5/lApZYniF/DsgS3g9COWe83dM=
+github.com/gen2brain/webp v0.5.5 h1:MvQR75yIPU/9nSqYT5h13k4URaJK3gf9tgz/ksRbyEg=
+github.com/gen2brain/webp v0.5.5/go.mod h1:xOSMzp4aROt2KFW++9qcK/RBTOVC2S9tJG66ip/9Oc0=
+github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a h1:l7A0loSszR5zHd/qK53ZIHMO8b3bBSmENnQ6eKnUT0A=
+github.com/gomarkdown/markdown v0.0.0-20250810172220-2e2c11897d1a/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/subcommands v1.2.0 h1:vWQspBTo2nEqTUFita5/KeEWlUL8kQObDFbub/EN9oE=
 github.com/google/subcommands v1.2.0/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk=
 github.com/gorilla/css v1.0.1 h1:ntNaBIghp6JmvWnxbZKANoLyuXTPZ4cAMlo6RyhlbO8=
@@ -35,10 +37,10 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
-github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
-github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
-github.com/microcosm-cc/bluemonday v1.0.26 h1:xbqSvqzQMeEHCqMi64VAs4d8uy6Mequs3rQ0k/Khz58=
-github.com/microcosm-cc/bluemonday v1.0.26/go.mod h1:JyzOCs9gkyQyjs+6h10UEVSe02CGwkhd72Xdqh78TWs=
+github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw=
+github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
+github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwXFM08ygZfk=
+github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
 github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
 github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
 github.com/pemistahl/lingua-go v1.4.0 h1:ifYhthrlW7iO4icdubwlduYnmwU37V1sbNrwhKBR4rM=
@@ -47,34 +49,30 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.4.6 h1:Sovz9sDSwbOz9tgUy8JpT+KgCkPYJEN/oYzlJiYTNLg=
-github.com/rivo/uniseg v0.4.6/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd h1:CmH9+J6ZSsIjUK3dcGsnCnO41eRBOnY12zwkn5qVwgc=
 github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd/go.mod h1:hPqNNc0+uJM6H+SuU8sEs5K5IQeKccPqeSjfgcKGgPk=
-github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
-github.com/sergi/go-diff v1.3.1/go.mod h1:aMJSSKb2lpPvRNec0+w3fl7LP9IOFzdc9Pa4NFbPK1I=
-github.com/shopspring/decimal v1.3.1 h1:2Usl1nmF/WZucqkFZhnfFYxxxu8LG21F6nPQBE5gKV8=
-github.com/shopspring/decimal v1.3.1/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
+github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=
+github.com/sergi/go-diff v1.4.0/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/tetratelabs/wazero v1.7.3 h1:PBH5KVahrt3S2AHgEjKu4u+LlDbbk+nsGE3KLucy6Rw=
-github.com/tetratelabs/wazero v1.7.3/go.mod h1:ytl6Zuh20R/eROuyDaGPkp82O9C/DJfXAwJfQ3X6/7Y=
-golang.org/x/exp v0.0.0-20240119083558-1b970713d09a h1:Q8/wZp0KX97QFTc2ywcOE0YRjZPVIx+MXInMzdvQqcA=
-golang.org/x/exp v0.0.0-20240119083558-1b970713d09a/go.mod h1:idGWGoKP1toJGkd5/ig9ZLuPcZBC3ewk7SzmH0uou08=
+github.com/tetratelabs/wazero v1.11.0 h1:+gKemEuKCTevU4d7ZTzlsvgd1uaToIDtlQlmNbwqYhA=
+github.com/tetratelabs/wazero v1.11.0/go.mod h1:eV28rsN8Q+xwjogd7f4/Pp4xFxO7uOGbLcD/LzB1wiU=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.15.0 h1:kOELfmgrmJlw4Cdb7g/QGuB3CvDrXbqEIww/pNtNBm8=
-golang.org/x/image v0.15.0/go.mod h1:HUYqC05R2ZcZ3ejNQsIHQDQiwWM4JBqmm6MKANTp4LE=
-golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
-golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
-golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
-golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
-golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/image v0.35.0 h1:LKjiHdgMtO8z7Fh18nGY6KDcoEtVfsgLDPeLyguqb7I=
+golang.org/x/image v0.35.0/go.mod h1:MwPLTVgvxSASsxdLzKrl8BRFuyqMyGhLwmC+TO1Sybk=
+golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
-google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

hashtags_cmd.go

@@ -4,16 +4,28 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
 	"io"
 	"os"
+	"regexp"
 	"sort"
+	"strings"
+
+	"github.com/gomarkdown/markdown"
+	"github.com/gomarkdown/markdown/ast"
+	"github.com/google/subcommands"
+	"github.com/hexops/gotextdiff"
+	"github.com/hexops/gotextdiff/myers"
+	"github.com/hexops/gotextdiff/span"
 )
 
 type hashtagsCmd struct {
+	update bool
+	dryRun bool
 }
 
 func (cmd *hashtagsCmd) SetFlags(f *flag.FlagSet) {
+	f.BoolVar(&cmd.update, "update", false, "create and update hashtag pages")
+	f.BoolVar(&cmd.dryRun, "dry-run", false, "only report the changes it would make")
 }
 
 func (*hashtagsCmd) Name() string     { return "hashtags" }
@@ -25,6 +37,9 @@ func (*hashtagsCmd) Usage() string {
 }
 
 func (cmd *hashtagsCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	if cmd.update {
+		return hashtagsUpdateCli(os.Stdout, cmd.dryRun)
+	}
 	return hashtagsCli(os.Stdout)
 }
 
@@ -57,3 +72,137 @@ func hashtagsCli(w io.Writer) subcommands.ExitStatus {
 
 	return subcommands.ExitSuccess
 }
+
+// hashtagsUpdateCli runs the hashtags command on the command line and creates and updates the hashtag pages in the
+// current directory. That is, pages in subdirectories are skipped! It is used here with an io.Writer for easy testing.
+func hashtagsUpdateCli(w io.Writer, dryRun bool) subcommands.ExitStatus {
+	index.load()
+	// no locking necessary since this is for the command-line
+	namesMap := make(map[string]string)
+	for hashtag, docids := range index.token {
+		if len(docids) <= 5 {
+			if dryRun {
+				fmt.Fprintf(w, "Skipping #%s because there are not enough entries (%d)\n", hashtag, len(docids))
+			}
+			continue
+		}
+		title, ok := namesMap[hashtag]
+		if !ok {
+			title = hashtagName(namesMap, hashtag, docids)
+			namesMap[hashtag] = title
+		}
+		pageName := strings.ReplaceAll(title, " ", "_")
+		h, err := loadPage(pageName)
+		original := ""
+		new := false
+		if err != nil {
+			new = true
+			h = &Page{Name: pageName, Body: []byte("# " + title + "\n\n#" + pageName + "\n\nBlog posts:\n\n")}
+		} else {
+			original = string(h.Body)
+		}
+		for _, docid := range docids {
+			name := index.documents[docid]
+			if strings.Contains(name, "/") {
+				continue
+			}
+			p, err := loadPage(name)
+			if err != nil {
+				fmt.Fprintf(w, "Loading %s: %s\n", name, err)
+				return subcommands.ExitFailure
+			}
+			if !p.IsBlog() {
+				continue
+			}
+			p.handleTitle(false)
+			if p.Title == "" {
+				p.Title = p.Name
+			}
+			esc := nameEscape(p.Base())
+			link := "* [" + p.Title + "](" + esc + ")\n"
+			// I guess & used to get escaped and now no longer does
+			re := regexp.MustCompile(`(?m)^\* \[[^\]]+\]\(` + strings.ReplaceAll(esc, "&", "(&|%26)") + `\)\n`)
+			addLinkToPage(h, link, re)
+		}
+		// only save if something changed
+		if string(h.Body) != original {
+			if dryRun {
+				if new {
+					fmt.Fprintf(w, "Creating %s.md\n", title)
+				} else {
+					fmt.Fprintf(w, "Updating %s.md\n", title)
+				}
+				fn := h.Name + ".md"
+				edits := myers.ComputeEdits(span.URIFromPath(fn), original, string(h.Body))
+				diff := fmt.Sprint(gotextdiff.ToUnified(fn+"~", fn, original, edits))
+				fmt.Fprint(w, diff)
+			} else {
+				err = h.save()
+				if err != nil {
+					fmt.Fprintf(w, "Saving hashtag %s failed: %s", hashtag, err)
+					return subcommands.ExitFailure
+				}
+			}
+		}
+	}
+	return subcommands.ExitSuccess
+}
+
+// Go through all the documents in the same directory and look for hashtag matches in the rendered HTML in order to
+// determine the most likely capitalization.
+func hashtagName(namesMap map[string]string, hashtag string, docids []docid) string {
+	candidate := make(map[string]int)
+	var mostPopular string
+	for _, docid := range docids {
+		name := index.documents[docid]
+		if strings.Contains(name, "/") {
+			continue
+		}
+		p, err := loadPage(name)
+		if err != nil {
+			continue
+		}
+		// parsing finds all the hashtags
+		parser, _ := wikiParser()
+		doc := markdown.Parse(p.Body, parser)
+		ast.WalkFunc(doc, func(node ast.Node, entering bool) ast.WalkStatus {
+			if entering {
+				if v, ok := node.(*ast.Link); ok {
+					for _, attr := range v.AdditionalAttributes {
+						if attr == `class="tag"` {
+							tagName := []byte("")
+							ast.WalkFunc(v, func(node ast.Node, entering bool) ast.WalkStatus {
+								if entering && node.AsLeaf() != nil {
+									tagName = append(tagName, node.AsLeaf().Literal...)
+								}
+								return ast.GoToNext
+							})
+							tag := string(tagName[1:])
+							if strings.EqualFold(hashtag, strings.ReplaceAll(tag, " ", "_")) {
+								_, ok := candidate[tag]
+								if ok {
+									candidate[tag]++
+								} else {
+									candidate[tag] = 1
+								}
+							}
+						}
+					}
+				}
+			}
+			return ast.GoToNext
+		})
+		count := 0
+		for key, val := range candidate {
+			if val > count {
+				mostPopular = key
+				count = val
+			}
+		}
+		// shortcut
+		if count >= 5 {
+			return mostPopular
+		}
+	}
+	return mostPopular
+}

hashtags_cmd_test.go

@@ -2,15 +2,25 @@ package main
 
 import (
 	"bytes"
+	"testing"
+
 	"github.com/google/subcommands"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestHashtagsCmd(t *testing.T) {
+	cleanup(t, "testdata/hashtag")
+	p := &Page{Name: "testdata/hashtag/hash", Body: []byte(`# Hash
+
+I hope for a time
+not like today, relentless,
+just crocus blooming
+
+#Crocus`)}
+	p.save()
 	b := new(bytes.Buffer)
 	s := hashtagsCli(b)
 	assert.Equal(t, subcommands.ExitSuccess, s)
 	x := b.String()
-	assert.Contains(t, x, "#like_this\t")
+	assert.Contains(t, x, "crocus\t")
 }

html_cmd.go

@@ -4,33 +4,37 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
+	"html/template"
 	"io"
 	"os"
+	"strings"
+
+	"github.com/google/subcommands"
 )
 
 type htmlCmd struct {
-	useTemplate bool
+	template string
 }
 
 func (*htmlCmd) Name() string     { return "html" }
 func (*htmlCmd) Synopsis() string { return "render a page as HTML" }
 func (*htmlCmd) Usage() string {
-	return `html [-view] <page name> ...:
+	return `html [-template <template name>] <page name> ...:
   Render one or more pages as HTML.
   Use a single - to read Markdown from stdin.
 `
 }
 
 func (cmd *htmlCmd) SetFlags(f *flag.FlagSet) {
-	f.BoolVar(&cmd.useTemplate, "view", false, "use the 'view.html' template.")
+	f.StringVar(&cmd.template, "template", "",
+		"use the given HTML file as a template (probably view.html or static.html).")
 }
 
 func (cmd *htmlCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
-	return htmlCli(os.Stdout, cmd.useTemplate, f.Args())
+	return htmlCli(os.Stdout, cmd.template, f.Args())
 }
 
-func htmlCli(w io.Writer, useTemplate bool, args []string) subcommands.ExitStatus {
+func htmlCli(w io.Writer, template string, args []string) subcommands.ExitStatus {
 	if len(args) == 1 && args[0] == "-" {
 		body, err := io.ReadAll(os.Stdin)
 		if err != nil {
@@ -38,15 +42,20 @@ func htmlCli(w io.Writer, useTemplate bool, args []string) subcommands.ExitStatu
 			return subcommands.ExitFailure
 		}
 		p := &Page{Name: "stdin", Body: body}
-		return p.printHtml(w, useTemplate)
+		return p.printHTML(w, template)
 	}
-	for _, arg := range args {
-		p, err := loadPage(arg)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "Cannot load %s: %s\n", arg, err)
+	for _, name := range args {
+		if !strings.HasSuffix(name, ".md") {
+			fmt.Fprintf(os.Stderr, "%s does not end in '.md'\n", name)
 			return subcommands.ExitFailure
 		}
-		status := p.printHtml(w, useTemplate)
+		name = name[0 : len(name)-3]
+		p, err := loadPage(name)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Cannot load %s: %s\n", name, err)
+			return subcommands.ExitFailure
+		}
+		status := p.printHTML(w, template)
 		if status != subcommands.ExitSuccess {
 			return status
 		}
@@ -54,21 +63,28 @@ func htmlCli(w io.Writer, useTemplate bool, args []string) subcommands.ExitStatu
 	return subcommands.ExitSuccess
 }
 
-func (p *Page) printHtml(w io.Writer, useTemplate bool) subcommands.ExitStatus {
-	if useTemplate {
-		t := "view.html"
-		loadTemplates()
-		p.handleTitle(true)
-		p.renderHtml()
-		err := templates.template[t].Execute(w, p)
+func (p *Page) printHTML(w io.Writer, fn string) subcommands.ExitStatus {
+	if fn == "" {
+		// do not handle title
+		p.renderHTML()
+		_, err := fmt.Fprintln(w, p.HTML)
 		if err != nil {
-			fmt.Fprintf(os.Stderr, "Cannot execute %s template for %s: %s\n", t, p.Name, err)
+			fmt.Fprintf(os.Stderr, "Cannot write to stdout: %s\n", err)
 			return subcommands.ExitFailure
 		}
-	} else {
-		// do not handle title
-		p.renderHtml()
-		fmt.Fprintln(w, p.Html)
+		return subcommands.ExitSuccess
+	}
+	p.handleTitle(true)
+	p.renderHTML()
+	t, err := template.ParseFiles(fn)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Cannot parse template %s for %s: %s\n", fn, p.Name, err)
+		return subcommands.ExitFailure
+	}
+	err = t.Execute(w, p)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Cannot execute template %s for %s: %s\n", fn, p.Name, err)
+		return subcommands.ExitFailure
 	}
 	return subcommands.ExitSuccess
 }

html_cmd_test.go

@@ -2,16 +2,17 @@ package main
 
 import (
 	"bytes"
+	"testing"
+
 	"github.com/google/subcommands"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestHtmlCmd(t *testing.T) {
 	b := new(bytes.Buffer)
-	s := htmlCli(b, false, []string{"index"})
+	s := htmlCli(b, "", []string{"index.md"})
 	assert.Equal(t, subcommands.ExitSuccess, s)
-	r := `<h1 id="welcome-to-oddµ">Welcome to Oddµ</h1>
+	r := `<h1 id="welcome-to-oddμ">Welcome to Oddμ</h1>
 
 <p>Hello! 🙃</p>
 

index.go

@@ -5,7 +5,6 @@
 package main
 
 import (
-	"golang.org/x/exp/constraints"
 	"html/template"
 	"io/fs"
 	"log"
@@ -13,6 +12,8 @@ import (
 	"sort"
 	"strings"
 	"sync"
+
+	"golang.org/x/exp/constraints"
 )
 
 type docid uint
@@ -23,15 +24,15 @@ type docid uint
 // It depends on the fact that Title is always plain text.
 type ImageData struct {
 	Title, Name string
-	Html        template.HTML
+	HTML        template.HTML
 }
 
 // indexStore controls access to the maps used for search. Make sure to lock and unlock as appropriate.
 type indexStore struct {
 	sync.RWMutex
 
-	// next_id is the number of the next document added to the index
-	next_id docid
+	// nextID is the number of the next document added to the index
+	nextID docid
 
 	// index is an inverted index mapping tokens to document ids.
 	token map[string][]docid
@@ -54,7 +55,7 @@ func init() {
 
 // reset the index. This assumes that the index is locked. It's useful for tests.
 func (idx *indexStore) reset() {
-	idx.next_id = 0
+	idx.nextID = 0
 	idx.token = make(map[string][]docid)
 	idx.documents = make(map[docid]string)
 	idx.titles = make(map[string]string)
@@ -62,10 +63,12 @@ func (idx *indexStore) reset() {
 }
 
 // addDocument adds the text as a new document. This assumes that the index is locked!
+// The hashtags (only!) are used as tokens. They are stored in lower case.
 func (idx *indexStore) addDocument(text []byte) docid {
-	id := idx.next_id
-	idx.next_id++
+	id := idx.nextID
+	idx.nextID++
 	for _, token := range hashtags(text) {
+		token = strings.ToLower(token)
 		ids := idx.token[token]
 		// Don't add same ID more than once. Checking the last
 		// position of the []docid works because the id is
@@ -137,23 +140,22 @@ func (idx *indexStore) load() (int, error) {
 }
 
 // walk reads a file and adds it to the index. This assumes that the index is locked.
-func (idx *indexStore) walk(path string, info fs.FileInfo, err error) error {
+func (idx *indexStore) walk(fp string, info fs.FileInfo, err error) error {
 	if err != nil {
 		return err
 	}
 	// skip hidden directories and files
-	if path != "." && strings.HasPrefix(filepath.Base(path), ".") {
+	if fp != "." && strings.HasPrefix(filepath.Base(fp), ".") {
 		if info.IsDir() {
 			return filepath.SkipDir
-		} else {
-			return nil
 		}
-	}
-	// skipp all but page files
-	if !strings.HasSuffix(path, ".md") {
 		return nil
 	}
-	p, err := loadPage(strings.TrimSuffix(path, ".md"))
+	// skipp all but page files
+	if !strings.HasSuffix(fp, ".md") {
+		return nil
+	}
+	p, err := loadPage(strings.TrimSuffix(filepath.ToSlash(fp), ".md"))
 	if err != nil {
 		return err
 	}
@@ -193,8 +195,8 @@ func (idx *indexStore) update(p *Page) {
 	idx.add(p)
 }
 
-// search searches the index for a query string and returns page
-// names.
+// search searches the index. The query string is parsed for tokens. Each token is turned to lower cased and looked up
+// in the index. Each page in the result must contain all the tokens. Returns page names.
 func (idx *indexStore) search(q string) []string {
 	idx.RLock()
 	defer idx.RUnlock()
@@ -203,6 +205,7 @@ func (idx *indexStore) search(q string) []string {
 	if len(hashtags) > 0 {
 		var r []docid
 		for _, token := range hashtags {
+			token = strings.ToLower(token)
 			if ids, ok := idx.token[token]; ok {
 				if r == nil {
 					r = ids
@@ -235,11 +238,12 @@ func intersection[T constraints.Ordered](a []T, b []T) []T {
 	r := make([]T, 0, maxLen)
 	var i, j int
 	for i < len(a) && j < len(b) {
-		if a[i] < b[j] {
+		switch {
+		case a[i] < b[j]:
 			i++
-		} else if a[i] > b[j] {
+		case a[i] > b[j]:
 			j++
-		} else {
+		default:
 			r = append(r, a[i])
 			i++
 			j++

index.md

@@ -1,4 +1,5 @@
-# Welcome to Oddµ
+
+# Welcome to Oddμ
 
 Hello! 🙃
 

index_test.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"strings"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestIndexAdd(t *testing.T) {
@@ -11,8 +12,8 @@ func TestIndexAdd(t *testing.T) {
 	idx.reset()
 	idx.Lock()
 	defer idx.Unlock()
-	tag := "#hello"
-	id := idx.addDocument([]byte("oh hi " + tag))
+	tag := "hello"
+	id := idx.addDocument([]byte("oh hi #" + tag))
 	assert.Contains(t, idx.token, tag)
 	idx.deleteDocument(id)
 	assert.NotContains(t, idx.token, tag)
@@ -21,7 +22,7 @@ func TestIndexAdd(t *testing.T) {
 // TestIndex relies on README.md being indexed
 func TestIndex(t *testing.T) {
 	index.load()
-	q := "Oddµ"
+	q := "Oddμ"
 	pages, _ := search(q, "", "", 1, false)
 	assert.NotZero(t, len(pages))
 	for _, p := range pages {
@@ -31,10 +32,19 @@ func TestIndex(t *testing.T) {
 	}
 }
 
+// Lower case hashtag!
 func TestSearchHashtag(t *testing.T) {
+	cleanup(t, "testdata/search-hashtag")
+	p := &Page{Name: "testdata/search-hashtag/search", Body: []byte(`# Search
+
+I'm back in this room
+Shelf, table, chair, and shelf again
+Where are my glasses?
+
+#Searching`)}
+	p.save()
 	index.load()
-	q := "#like_this"
-	pages, _ := search(q, "", "", 1, false)
+	pages, _ := search("#searching", "", "", 1, false)
 	assert.NotZero(t, len(pages))
 }
 

languages.go

@@ -2,9 +2,10 @@ package main
 
 import (
 	"errors"
-	"github.com/pemistahl/lingua-go"
 	"os"
 	"strings"
+
+	"github.com/pemistahl/lingua-go"
 )
 
 // getLanguages returns the environment variable ODDMU_LANGUAGES or all languages.

languages_test.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"os"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestAllLanguage(t *testing.T) {

links_cmd.go

@@ -4,9 +4,11 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
 	"io"
 	"os"
+	"strings"
+
+	"github.com/google/subcommands"
 )
 
 type linksCmd struct {
@@ -43,6 +45,11 @@ func linksCli(w io.Writer, args []string) subcommands.ExitStatus {
 		return subcommands.ExitSuccess
 	}
 	for _, name := range args {
+		if !strings.HasSuffix(name, ".md") {
+			fmt.Fprintf(os.Stderr, "%s does not end in '.md'\n", name)
+			return subcommands.ExitFailure
+		}
+		name = name[0 : len(name)-3]
 		p, err := loadPage(name)
 		if err != nil {
 			fmt.Fprintf(w, "Loading %s: %s\n", name, err)

links_cmd_test.go

@@ -2,14 +2,15 @@ package main
 
 import (
 	"bytes"
+	"testing"
+
 	"github.com/google/subcommands"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestLinksCmd(t *testing.T) {
 	b := new(bytes.Buffer)
-	s := linksCli(b, []string{"README"})
+	s := linksCli(b, []string{"README.md"})
 	assert.Equal(t, subcommands.ExitSuccess, s)
 	x := b.String()
 	assert.Contains(t, x, "https://alexschroeder.ch/view/oddmu/oddmu.1\n")

list.go

@@ -1,102 +0,0 @@
-package main
-
-import (
-	"io/fs"
-	"log"
-	"net/http"
-	"os"
-	"path/filepath"
-	"strings"
-	"time"
-)
-
-// ListItem is used to display the list of files.
-type File struct {
-	Name, Title string
-	IsDir, IsUp bool
-	// Date is the last modification date of the file storing the page. As the pages used by Oddmu are plain
-	// Markdown files, they don't contain any metadata. Instead, the last modification date of the file is used.
-	// This makes it work well with changes made to the files outside of Oddmu.
-	Date string
-}
-
-type List struct {
-	Dir string
-	Files []File
-}
-
-// listHandler uses the "list.html" template to enable file management in a particular directory.
-func listHandler(w http.ResponseWriter, r *http.Request, dir string) {
-	files := []File{}
-	d := filepath.FromSlash(dir)
-	if d == "" {
-		d = "."
-	} else if !strings.HasSuffix(d, "/") {
-		http.Redirect(w, r, "/list/"+d+"/", http.StatusFound)
-		return
-	} else {
-		it := File{Name: "..", IsUp: true, IsDir: true }
-		files = append(files, it)
-	}
-	err := filepath.Walk(d, func (path string, fi fs.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		isDir := false
-		if fi.IsDir() {
-			if d == path {
-				return nil
-			}
-			isDir = true
-		}
-		name := filepath.ToSlash(path)
-		base := filepath.Base(name)
-		title := ""
-		if !isDir && strings.HasSuffix(name, ".md") {
-			index.RLock()
-			defer index.RUnlock()
-			title = index.titles[name[:len(name)-3]]
-		}
-		if isDir {
-			base += "/"
-		}
-		it := File{Name: base, Title: title, Date: fi.ModTime().Format(time.DateTime), IsDir: isDir }
-		files = append(files, it)
-		if isDir {
-			return filepath.SkipDir
-		}
-		return nil
-	})
-	if err != nil {
-		log.Println(err)
-		http.Error(w, err.Error(), http.StatusBadRequest)
-		return
-	}
-	renderTemplate(w, dir, "list", &List{Dir: dir, Files: files})
-}
-
-
-// deleteHandler deletes the named file and then redirects back to the list
-func deleteHandler(w http.ResponseWriter, r *http.Request, path string) {
-	fn := filepath.Clean(filepath.FromSlash(path))
-	err := os.RemoveAll(fn) // and all its children!
-	if err != nil {
-		log.Println(err)
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	http.Redirect(w, r, "/list/"+filepath.Dir(fn)+"/", http.StatusFound)
-}
-
-// renameHandler renames the named file and then redirects back to the list
-func renameHandler(w http.ResponseWriter, r *http.Request, path string) {
-	fn := filepath.Clean(filepath.FromSlash(path))
-	target := filepath.Join(filepath.Dir(fn), r.FormValue("name"))
-	err := os.Rename(fn, target)
-	if err != nil {
-		log.Println(err)
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	http.Redirect(w, r, "/list/"+filepath.Dir(target)+"/", http.StatusFound)
-}

list.html

@@ -1,59 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta name="format-detection" content="telephone=no">
-    <meta name="viewport" content="width=device-width">
-    <title>Manage Files</title>
-    <style>
-html { max-width: 70ch; padding: 2ch; margin: auto; color: #111; background-color: #ffe }
-body { hyphens: auto }
-form { width: 100% }
-table { border-collapse: collapse }
-th:nth-child(3) { max-width: 3ex; overflow: visible }
-td form { display: inline }
-td { padding-right: 1ch }
-td:last-child { padding-right: 0 }
-td:first-child { max-width: 30ch; overflow: hidden }
-tr:nth-child(odd) { background-color: #eed }
-td:first-child, td:last-child { white-space: nowrap }
-    </style>
-  </head>
-  <body lang="en">
-    <header>
-      <a href="#main">Skip navigation</a>
-      <a href="/view/index">Home</a>
-      <a href="/archive/{{.Dir}}data.zip" accesskey="z">Zip</a>
-      <a href="/upload/{{.Dir}}?filename=image-1.jpg" accesskey="u">Upload</a>
-      <form role="search" action="/search/{{.Dir}}" method="GET">
-        <label for="search">Search:</label>
-        <input id="search" type="text" spellcheck="false" name="q" accesskey="f" placeholder="term #tag title:term blog:true" required>
-        <button>Go</button>
-      </form>
-    </header>
-    <main>
-      <h1>Manage Files</h1>
-      <form id="manage">
-        <p><mark>Deletions and renamings take effect immediately and there is no undo!</mark></p>
-      </form>
-      <table>
-        <tr>
-          <th>Name</th>
-          <th>Title</th>
-          <th>Delete</th>
-          <th>Rename</th>
-        </tr>{{range .Files}}
-        <tr>
-          <td>{{if .IsDir}}<a href="/list/{{$.Dir}}{{.Name}}">{{.Name}}</a>{{else}}<a href="/view/{{$.Dir}}{{.Name}}">{{.Name}}</a>{{end}}</td>
-          <td>{{.Title}}</td>
-          <td>{{if .IsUp}}{{else}}<button form="manage" formaction="/delete/{{$.Dir}}{{.Name}}" title="Delete {{.Name}}">🗑</button>{{end}}</td>
-          <td>{{if .IsUp}}{{else}}
-            <form action="/rename/{{$.Dir}}{{.Name}}">
-              <input name="name" placeholder="New name"/>
-              <button title="Rename {{.Name}}">♺</button>
-            </form>{{end}}</td>
-        </tr>{{end}}
-      </table>
-    </main>
-  </body>
-</html>

list_cmd.go

@@ -4,11 +4,12 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
 	"io"
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/google/subcommands"
 )
 
 type listCmd struct {

list_cmd_test.go

@@ -2,9 +2,10 @@ package main
 
 import (
 	"bytes"
+	"testing"
+
 	"github.com/google/subcommands"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestListCmd(t *testing.T) {
@@ -12,8 +13,8 @@ func TestListCmd(t *testing.T) {
 	s := listCli(b, "", nil)
 	assert.Equal(t, subcommands.ExitSuccess, s)
 	x := b.String()
-	assert.Contains(t, x, "README\tOddµ: A minimal wiki\n")
-	assert.Contains(t, x, "index\tWelcome to Oddµ\n")
+	assert.Contains(t, x, "README\tOddμ: A minimal wiki\n")
+	assert.Contains(t, x, "index\tWelcome to Oddμ\n")
 }
 
 func TestListSubdirCmd(t *testing.T) {

list_test.go

@@ -1,30 +0,0 @@
-package main
-
-import (
-	"github.com/stretchr/testify/assert"
-	"os"
-	"testing"
-)
-
-// relies on index.md in the current directory!
-func TestListHandler(t *testing.T) {
-	assert.Contains(t,
-		assert.HTTPBody(makeHandler(listHandler, false), "GET", "/list/", nil),
-		"index.md")
-}
-
-func TestDeleteHandler(t *testing.T) {
-	cleanup(t, "testdata/delete")
-	assert.NoError(t, os.Mkdir("testdata/delete", 0755))
-	p := &Page{Name: "testdata/delete/haiku", Body: []byte(`# Sunset
-
-Walk the fields outside
-See the forest loom above
-And an orange sky
-`)}
-	p.save()
-	list := assert.HTTPBody(makeHandler(listHandler, false), "GET", "/list/testdata/delete/", nil)
-	assert.Contains(t, list, `<a href="/view/testdata/delete/haiku.md">haiku.md</a>`)
-	assert.Contains(t, list, `<td>Sunset</td>`)
-	assert.Contains(t, list, `<button form="manage" formaction="/delete/testdata/delete/haiku.md" title="Delete haiku.md">`)
-}

man/Makefile

@@ -27,7 +27,7 @@ html: ${HTML}
 %.html: %.md
 	@echo Making $@
 	@echo '<!DOCTYPE html>' > $@
-	@oddmu html $(basename $<) | sed --regexp-extended \
+	@oddmu html $< | sed --regexp-extended \
 	  -e 's/<a href="(oddmu[a-z.-]*.[1-9])">([^<>]*)<\/a>/<a href="\1.html">\2<\/a>/g' >> $@
 
 md: ${MD}
@@ -43,13 +43,13 @@ README.md: ../README.md
 	  < $< > $@
 
 upload: ${MD} README.md
-	rsync --itemize-changes --archive *.md sibirocobombus:alexschroeder.ch/wiki/oddmu/
+	rsync --itemize-changes --archive *.md ../README.md sibirocobombus:alexschroeder.ch/wiki/oddmu/
 	make clean
 
 clean:
 	@echo Removing HTML and Markdown files
-	@rm --force ${HTML} ${MD} README.md
+	@rm -f ${HTML} ${MD} README.md
 
 realclean: clean
 	@echo Removing man pages
-	@rm --force ${MAN}
+	@rm -f ${MAN}

man/oddmu-apache.5

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-APACHE" "5" "2024-09-25"
+.TH "ODDMU-APACHE" "5" "2026-01-29"
 .PP
 .SH NAME
 .PP
@@ -48,7 +48,7 @@ ServerAdmin alex@alexschroeder\&.ch
 <VirtualHost *:443>
   ServerName transjovian\&.org
   SSLEngine on
-  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(\&.*))?$" 
+  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(\&.*)|sitemap.xml)?$" 
                  "http://localhost:8080/$1"
 </VirtualHost>
 .fi
@@ -126,13 +126,13 @@ ServerAdmin alex@alexschroeder\&.ch
   ServerName transjovian\&.org
   ProxyPassMatch "^/((view|diff|search|archive)/(\&.*))?$" 
                  "http://localhost:8080/$1"
-  RedirectMatch  "^/((edit|save|add|append|upload|drop|list|delete|rename)/(\&.*))?$" 
+  RedirectMatch  "^/((edit|save|add|append|upload|drop)/(\&.*)|sitemap.xml)?$" 
                  "https://transjovian\&.org/$1"
 </VirtualHost>
 <VirtualHost *:443>
   ServerName transjovian\&.org
   SSLEngine on
-  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(\&.*))?$" 
+  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(\&.*)|sitemap.xml)?$" 
                  "http://localhost:8080/$1"
 </VirtualHost>
 .fi
@@ -170,7 +170,7 @@ In that case, you need to use the ProxyPassMatch directive.\&
 .PP
 .nf
 .RS 4
-ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(\&.*))?$" 
+ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(\&.*)|sitemap.xml)?$" 
                "unix:/run/oddmu/oddmu\&.sock|http://localhost/$1"
 .fi
 .RE
@@ -189,7 +189,7 @@ A workaround is to add the redirect manually and drop the question-mark:
 .nf
 .RS 4
 RedirectMatch "^/$" "/view/index"
-ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(\&.*))$" 
+ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(\&.*)|sitemap.xml)$" 
                "unix:/run/oddmu/oddmu\&.sock|http://localhost/$1"
 .fi
 .RE
@@ -234,12 +234,12 @@ htpasswd -D \&.htpasswd berta
 .RE
 .PP
 Modify your site configuration and protect the "/edit/", "/save/", "/add/",
-"/append/", "/upload/", "/drop/", "/list/", "/delete/" and "/rename/" URLs with
-a password by adding the following to your "<VirtualHost *:443>" section:
+"/append/", "/upload/" and "/drop/" URLs with a password by adding the following
+to your "<VirtualHost *:443>" section:
 .PP
 .nf
 .RS 4
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename)/">
+<LocationMatch "^/(edit|save|add|append|upload|drop)/">
   AuthType Basic
   AuthName "Password Required"
   AuthUserFile /home/oddmu/\&.htpasswd
@@ -248,12 +248,74 @@ a password by adding the following to your "<VirtualHost *:443>" section:
 .fi
 .RE
 .PP
+.SS Actual usernames and passwords for authentication
+.PP
+On a community server where the users have accounts, wiki editing can be limited
+to the system'\&s users.\&
+.PP
+In order to do this, install the \fBmod-authnz-external\fR module for Apache and the
+\fBpwauth\fR binary.\& The module allows the password checking normally done inside
+Apache to be done by an separate external program running outside of Apache.\&
+.PP
+Here'\&s an example configuration:
+.PP
+.nf
+.RS 4
+AddExternalAuth pwauth /usr/sbin/pwauth
+SetExternalAuthMethod pwauth pipe
+
+<LocationMatch "^/(edit|save|add|append|upload|drop)/">
+ AuthType Basic
+ AuthName "Password Required"
+ AuthBasicProvider external
+ AuthExternal pwauth
+ Require valid-user
+</LocationMatch>
+.fi
+.RE
+.PP
+.SS Different logins for different access rights
+.PP
+What if you have a site with various subdirectories and each subdirectory is for
+a different group of friends?\& You can set this up using your webserver.\& One way
+to do this is to require specific usernames (which must have a password in the
+password file mentioned above.\&
+.PP
+This requires a valid login by the user "alex" or "berta":
+.PP
+.nf
+.RS 4
+<LocationMatch "^/(edit|save|add|append|upload|drop)/intetebi/">
+  Require user alex berta
+</LocationMatch>
+.fi
+.RE
+.PP
+.SS Private wikis
+.PP
+Based on the above, you can prevent people from \fIreading\fR the wiki.\& The location
+must cover all the URLs in order to protect everything.\&
+.PP
+.nf
+.RS 4
+<Location />
+  AuthType Basic
+  AuthName "Password Required"
+  AuthUserFile /home/oddmu/\&.htpasswd
+  Require valid-user
+</Location>
+.fi
+.RE
+.PP
+.SS Subdirectories as separate sites
+.PP
 The way Oddmu handles subdirectories is that all files and directories are
 visible, except for "hidden" files and directories (whose name starts with a
 period).\& Specifically, do not rely on Apache to hide locations in subdirectories
 from public view.\& Search reveals the existence of these pages and produces an
-extract, even if users cannot follow the links.\& Archive links pack all the
-subdirectories, including locations you may have hidden from view using Apache.\&
+extract, even if users cannot follow the links.\& The Sitemap lists all pages,
+including subdirectories.\& Archive links pack all the subdirectories, including
+locations you may have hidden from view using Apache.\&
 .PP
 If you to treat subdirectories as separate sites, you need to set the
 environment variable ODDMU_FILTER to a regular expression matching the those
@@ -274,7 +336,7 @@ directory:
 .PP
 .nf
 .RS 4
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename|(view|preview|search|archive)/secret)/">
+<LocationMatch "^/(edit|save|add|append|upload|drop|(view|preview|search|archive)/secret)/">
   AuthType Basic
   AuthName "Password Required"
   AuthUserFile /home/oddmu/\&.htpasswd
@@ -300,9 +362,8 @@ DocumentRoot /home/oddmu
 .PP
 Make sure that none of the subdirectories look like the wiki paths "/view/",
 "/diff/", "/edit/", "/save/", "/add/", "/append/", "/upload/", "/drop/",
-"/list", "/delete/", "/rename/" "/search/" or "/archive/".\& For example, create a
-file called "robots.\&txt" containing the following, telling all robots that
-they'\&re not welcome.\&
+"/search/" or "/archive/".\& For example, create a file called "robots.\&txt"
+containing the following, telling all robots that they'\&re not welcome.\&
 .PP
 .nf
 .RS 4
@@ -339,46 +400,13 @@ In this case, "/css/oddmu-2023.\&css" would be the name of your stylesheet.\& If
 your document root is "/home/oddmu", then the filename of your stylesheet would
 have to be "/home/oddmu/css/oddmu-2023.\&css" for this to work.\&
 .PP
-.SS Different logins for different access rights
-.PP
-What if you have a site with various subdirectories and each subdirectory is for
-a different group of friends?\& You can set this up using your webserver.\& One way
-to do this is to require specific usernames (which must have a password in the
-password file mentioned above.\&
-.PP
-This requires a valid login by the user "alex" or "berta":
-.PP
-.nf
-.RS 4
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename)/intetebi/">
-  Require user alex berta
-</LocationMatch>
-.fi
-.RE
-.PP
-.SS Private wikis
-.PP
-Based on the above, you can prevent people from \fIreading\fR the wiki.\& The location
-must cover all the URLs in order to protect everything.\&
-.PP
-.nf
-.RS 4
-<Location />
-  AuthType Basic
-  AuthName "Password Required"
-  AuthUserFile /home/oddmu/\&.htpasswd
-  Require valid-user
-</Location>
-.fi
-.RE
-.PP
 .SS Virtual hosting
 .PP
 Virtual hosting in this context means that the program serves two different
 sites for two different domains from the same machine.\& Oddmu doesn'\&t support
 that, but your webserver does.\& Therefore, start an Oddmu instance for every
 domain name, each listening on a different port.\& Then set up your web server
-such that ever domain acts as a reverse proxy to a different Oddmu instance.\&
+such that every domain proxies for a different Oddmu instance.\&
 .PP
 .SH SEE ALSO
 .PP

man/oddmu-apache.5.txt

@@ -40,7 +40,7 @@ ServerAdmin alex@alexschroeder.ch
 <VirtualHost *:443>
   ServerName transjovian.org
   SSLEngine on
-  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(.*))?$" \
+  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(.*)|sitemap\.xml)?$" \
                  "http://localhost:8080/$1"
 </VirtualHost>
 ```
@@ -106,13 +106,13 @@ ServerAdmin alex@alexschroeder.ch
   ServerName transjovian.org
   ProxyPassMatch "^/((view|diff|search|archive)/(.*))?$" \
                  "http://localhost:8080/$1"
-  RedirectMatch  "^/((edit|save|add|append|upload|drop|list|delete|rename)/(.*))?$" \
+  RedirectMatch  "^/((edit|save|add|append|upload|drop)/(.*)|sitemap\.xml)?$" \
                  "https://transjovian.org/$1"
 </VirtualHost>
 <VirtualHost *:443>
   ServerName transjovian.org
   SSLEngine on
-  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(.*))?$" \
+  ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(.*)|sitemap\.xml)?$" \
                  "http://localhost:8080/$1"
 </VirtualHost>
 ```
@@ -144,7 +144,7 @@ You probably want to serve some static files as well (see *Serve static files*).
 In that case, you need to use the ProxyPassMatch directive.
 
 ```
-ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(.*))?$" \
+ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(.*)|sitemap\.xml)?$" \
                "unix:/run/oddmu/oddmu.sock|http://localhost/$1"
 ```
 
@@ -159,7 +159,7 @@ A workaround is to add the redirect manually and drop the question-mark:
 
 ```
 RedirectMatch "^/$" "/view/index"
-ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/(.*))$" \
+ProxyPassMatch "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive)/(.*)|sitemap\.xml)$" \
                "unix:/run/oddmu/oddmu.sock|http://localhost/$1"
 ```
 
@@ -197,11 +197,11 @@ htpasswd -D .htpasswd berta
 ```
 
 Modify your site configuration and protect the "/edit/", "/save/", "/add/",
-"/append/", "/upload/", "/drop/", "/list/", "/delete/" and "/rename/" URLs with
-a password by adding the following to your "<VirtualHost \*:443>" section:
+"/append/", "/upload/" and "/drop/" URLs with a password by adding the following
+to your "<VirtualHost \*:443>" section:
 
 ```
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename)/">
+<LocationMatch "^/(edit|save|add|append|upload|drop)/">
   AuthType Basic
   AuthName "Password Required"
   AuthUserFile /home/oddmu/.htpasswd
@@ -209,12 +209,68 @@ a password by adding the following to your "<VirtualHost \*:443>" section:
 </LocationMatch>
 ```
 
+## Actual usernames and passwords for authentication
+
+On a community server where the users have accounts, wiki editing can be limited
+to the system's users.
+
+In order to do this, install the *mod-authnz-external* module for Apache and the
+*pwauth* binary. The module allows the password checking normally done inside
+Apache to be done by an separate external program running outside of Apache.
+
+Here's an example configuration:
+
+```
+AddExternalAuth pwauth /usr/sbin/pwauth
+SetExternalAuthMethod pwauth pipe
+
+<LocationMatch "^/(edit|save|add|append|upload|drop)/">
+ AuthType Basic
+ AuthName "Password Required"
+ AuthBasicProvider external
+ AuthExternal pwauth
+ Require valid-user
+</LocationMatch>
+```
+
+## Different logins for different access rights
+
+What if you have a site with various subdirectories and each subdirectory is for
+a different group of friends? You can set this up using your webserver. One way
+to do this is to require specific usernames (which must have a password in the
+password file mentioned above.
+
+This requires a valid login by the user "alex" or "berta":
+
+```
+<LocationMatch "^/(edit|save|add|append|upload|drop)/intetebi/">
+  Require user alex berta
+</LocationMatch>
+```
+
+## Private wikis
+
+Based on the above, you can prevent people from _reading_ the wiki. The location
+must cover all the URLs in order to protect everything.
+
+```
+<Location />
+  AuthType Basic
+  AuthName "Password Required"
+  AuthUserFile /home/oddmu/.htpasswd
+  Require valid-user
+</Location>
+```
+
+## Subdirectories as separate sites
+
 The way Oddmu handles subdirectories is that all files and directories are
 visible, except for "hidden" files and directories (whose name starts with a
 period). Specifically, do not rely on Apache to hide locations in subdirectories
 from public view. Search reveals the existence of these pages and produces an
-extract, even if users cannot follow the links. Archive links pack all the
-subdirectories, including locations you may have hidden from view using Apache.
+extract, even if users cannot follow the links. The Sitemap lists all pages,
+including subdirectories. Archive links pack all the subdirectories, including
+locations you may have hidden from view using Apache.
 
 If you to treat subdirectories as separate sites, you need to set the
 environment variable ODDMU_FILTER to a regular expression matching the those
@@ -234,7 +290,7 @@ You need to configure the web server to prevent access to the "secret/"
 directory:
 
 ```
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename|(view|preview|search|archive)/secret)/">
+<LocationMatch "^/(edit|save|add|append|upload|drop|(view|preview|search|archive)/secret)/">
   AuthType Basic
   AuthName "Password Required"
   AuthUserFile /home/oddmu/.htpasswd
@@ -257,9 +313,8 @@ DocumentRoot /home/oddmu
 
 Make sure that none of the subdirectories look like the wiki paths "/view/",
 "/diff/", "/edit/", "/save/", "/add/", "/append/", "/upload/", "/drop/",
-"/list", "/delete/", "/rename/" "/search/" or "/archive/". For example, create a
-file called "robots.txt" containing the following, telling all robots that
-they're not welcome.
+"/search/" or "/archive/". For example, create a file called "robots.txt"
+containing the following, telling all robots that they're not welcome.
 
 ```
 User-agent: *
@@ -292,42 +347,13 @@ In this case, "/css/oddmu-2023.css" would be the name of your stylesheet. If
 your document root is "/home/oddmu", then the filename of your stylesheet would
 have to be "/home/oddmu/css/oddmu-2023.css" for this to work.
 
-## Different logins for different access rights
-
-What if you have a site with various subdirectories and each subdirectory is for
-a different group of friends? You can set this up using your webserver. One way
-to do this is to require specific usernames (which must have a password in the
-password file mentioned above.
-
-This requires a valid login by the user "alex" or "berta":
-
-```
-<LocationMatch "^/(edit|save|add|append|upload|drop|list|delete|rename)/intetebi/">
-  Require user alex berta
-</LocationMatch>
-```
-
-## Private wikis
-
-Based on the above, you can prevent people from _reading_ the wiki. The location
-must cover all the URLs in order to protect everything.
-
-```
-<Location />
-  AuthType Basic
-  AuthName "Password Required"
-  AuthUserFile /home/oddmu/.htpasswd
-  Require valid-user
-</Location>
-```
-
 ## Virtual hosting
 
 Virtual hosting in this context means that the program serves two different
 sites for two different domains from the same machine. Oddmu doesn't support
 that, but your webserver does. Therefore, start an Oddmu instance for every
 domain name, each listening on a different port. Then set up your web server
-such that ever domain acts as a reverse proxy to a different Oddmu instance.
+such that every domain proxies for a different Oddmu instance.
 
 # SEE ALSO
 

man/oddmu-export.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-EXPORT" "1" "2024-08-29"
+.TH "ODDMU-EXPORT" "1" "2026-01-03"
 .PP
 .SH NAME
 .PP
@@ -22,8 +22,8 @@ You probably want to redirect this into a file so that you can upload and import
 it somewhere.\&
 .PP
 Note that this only handles pages (Markdown files).\& All other files (images,
-PDFs, whatever else you uploaded) are not part of the feed and has to be
-uploaded to the new platform in some other way.\&
+PDFs, whatever else you uploaded) are not part of the feed and have to be
+uploaded to the new platform using some other way.\&
 .PP
 The \fB-template\fR option specifies the template to use.\& If the template filename
 ends in \fI.\&xml\fR, \fI.\&html\fR or \fI.\&rss\fR, it is assumed to contain XML and the optional
@@ -31,7 +31,8 @@ XML preamble is printed and appropriate escaping rules are used.\&
 .PP
 .SH FILES
 .PP
-By default, the export uses the \fB\fRfeed.\&html\fB\fR template in the current directory.\&
+By default, the export uses the feed template ("feed.\&html") in the current
+directory.\&
 .PP
 .SH EXAMPLES
 .PP

man/oddmu-export.1.txt

@@ -15,8 +15,8 @@ You probably want to redirect this into a file so that you can upload and import
 it somewhere.
 
 Note that this only handles pages (Markdown files). All other files (images,
-PDFs, whatever else you uploaded) are not part of the feed and has to be
-uploaded to the new platform in some other way.
+PDFs, whatever else you uploaded) are not part of the feed and have to be
+uploaded to the new platform using some other way.
 
 The *-template* option specifies the template to use. If the template filename
 ends in _.xml_, _.html_ or _.rss_, it is assumed to contain XML and the optional
@@ -24,7 +24,8 @@ XML preamble is printed and appropriate escaping rules are used.
 
 # FILES
 
-By default, the export uses the **feed.html** template in the current directory.
+By default, the export uses the feed template ("feed.html") in the current
+directory.
 
 # EXAMPLES
 

man/oddmu-feed.1

@@ -0,0 +1,59 @@
+.\" Generated by scdoc 1.11.3
+.\" Complete documentation for this program is not available as a GNU info page
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.nh
+.ad l
+.\" Begin generated content:
+.TH "ODDMU-FEED" "1" "2025-12-31"
+.PP
+.SH NAME
+.PP
+oddmu-feed - render Oddmu page feed
+.PP
+.SH SYNOPSIS
+.PP
+\fBoddmu feed\fR \fIpage-name\fR .\&.\&.\&
+.PP
+.SH DESCRIPTION
+.PP
+The "feed" subcommand opens the given Markdown files and writes the resulting
+RSS files without item limit (ordinarily, this default is 10 items per feed).\&
+This uses the "feed.\&html" template.\& Use "-" as the page name if you want to read
+Markdown from \fBstdin\fR.\&
+.PP
+Unlike the feeds generated by the \fBstatic\fR subcommand, the \fBfeed\fR command does
+not limit the feed to the ten most recent items.\& Instead, all items on the list
+are turned into feed items.\&
+.PP
+Furthermore, if the items on the list are blog posts (their page name starts
+with an ISO date), then this ISO date is used for the last update date to the
+page instead of the last modification time of the file.\& The idea, more or less,
+is that this feed is an archive feed and that in this context the creation date
+is more important than the last modification date.\&
+.PP
+.SH EXAMPLES
+.PP
+Generate "emacs.\&rss" from "emacs.\&md":
+.PP
+.nf
+.RS 4
+oddmu feed emacs\&.md
+.fi
+.RE
+.PP
+Alternatively:
+.PP
+.nf
+.RS 4
+oddmu feed - < emacs\&.md > emacs\&.rss
+.fi
+.RE
+.PP
+.SH SEE ALSO
+.PP
+\fIoddmu\fR(1), \fIoddmu-export\fR(1), \fIoddmu-static\fR(1)
+.PP
+.SH AUTHORS
+.PP
+Maintained by Alex Schroeder <alex@gnu.\&org>.\&

man/oddmu-feed.1.txt

@@ -0,0 +1,48 @@
+ODDMU-FEED(1)
+
+# NAME
+
+oddmu-feed - render Oddmu page feed
+
+# SYNOPSIS
+
+*oddmu feed* _page-name_ ...
+
+# DESCRIPTION
+
+The "feed" subcommand opens the given Markdown files and writes the resulting
+RSS files without item limit (ordinarily, this default is 10 items per feed).
+This uses the "feed.html" template. Use "-" as the page name if you want to read
+Markdown from *stdin*.
+
+Unlike the feeds generated by the *static* subcommand, the *feed* command does
+not limit the feed to the ten most recent items. Instead, all items on the list
+are turned into feed items.
+
+Furthermore, if the items on the list are blog posts (their page name starts
+with an ISO date), then this ISO date is used for the last update date to the
+page instead of the last modification time of the file. The idea, more or less,
+is that this feed is an archive feed and that in this context the creation date
+is more important than the last modification date.
+
+# EXAMPLES
+
+Generate "emacs.rss" from "emacs.md":
+
+```
+oddmu feed emacs.md
+```
+
+Alternatively:
+
+```
+oddmu feed - < emacs.md > emacs.rss
+```
+
+# SEE ALSO
+
+_oddmu_(1), _oddmu-export_(1), _oddmu-static_(1)
+
+# AUTHORS
+
+Maintained by Alex Schroeder <alex@gnu.org>.

man/oddmu-filter.7

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-FILTER" "7" "2024-09-30"
+.TH "ODDMU-FILTER" "7" "2026-01-03"
 .PP
 .SH NAME
 .PP
@@ -13,13 +13,13 @@ oddmu-filter - keeping subdirectories separate
 .PP
 .SH DESCRIPTION
 .PP
-There are actions such as searching and archiving that act on multiple pages,
-not just a single page.\& These actions walk the directory tree, including all
-subdirectories.\& In some cases, this is not desirable.\&
+There are actions such as producing the sitemap, searching and archiving that
+act on multiple pages, not just a single page.\& These actions walk the directory
+tree, including all subdirectories.\& In some cases, this is not desirable.\&
 .PP
 Sometimes, subdirectories are separate sites, like the sites of other projects
 or different people.\& Depending on how you think about it, you might not want to
-include those "sites" in searches or archives of the whole site.\&
+include those "sites" in searches, sitemaps or archives of the whole site.\&
 .PP
 Since directory tree actions always start in the directory the visitor is
 currently looking at, directory tree actions starting in a "separate site"

man/oddmu-filter.7.txt

@@ -6,13 +6,13 @@ oddmu-filter - keeping subdirectories separate
 
 # DESCRIPTION
 
-There are actions such as searching and archiving that act on multiple pages,
-not just a single page. These actions walk the directory tree, including all
-subdirectories. In some cases, this is not desirable.
+There are actions such as producing the sitemap, searching and archiving that
+act on multiple pages, not just a single page. These actions walk the directory
+tree, including all subdirectories. In some cases, this is not desirable.
 
 Sometimes, subdirectories are separate sites, like the sites of other projects
 or different people. Depending on how you think about it, you might not want to
-include those "sites" in searches or archives of the whole site.
+include those "sites" in searches, sitemaps or archives of the whole site.
 
 Since directory tree actions always start in the directory the visitor is
 currently looking at, directory tree actions starting in a "separate site"

man/oddmu-hashtags.1

@@ -5,20 +5,31 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-HASHTAGS" "1" "2024-08-29"
+.TH "ODDMU-HASHTAGS" "1" "2025-08-09"
 .PP
 .SH NAME
 .PP
-oddmu-hashtags - count the hashtags used
+oddmu-hashtags - work with hashtags
 .PP
 .SH SYNOPSIS
 .PP
 \fBoddmu hashtags\fR
 .PP
+\fBoddmu hashtags -update\fR [\fB-dry-run\fR]
+.PP
 .SH DESCRIPTION
 .PP
-The "hashtags" subcommand counts all the hashtags used and lists them, separated
-by a TAB character.\&
+By default, the "hashtags" subcommand counts all the hashtags used and lists
+them, separated by a TAB character.\&
+.PP
+With the \fB-update\fR flag, the hashtag pages are update with links to all the blog
+pages having the corresponding tag.\& This only necessary when migrating a
+collection of Markdown files.\& Ordinarily, Oddmu maintains the hashtag pages
+automatically.\& When writing pages offline, use \fIoddmu-notify\fR(1) to update the
+hashtag pages.\&
+.PP
+Use the \fB-dry-run\fR flag to see what would change with the \fB-update\fR flag without
+actually changing any files.\&
 .PP
 .SH EXAMPLES
 .PP
@@ -30,6 +41,22 @@ oddmu hashtags | head -n 11
 .fi
 .RE
 .PP
+See what kind of changes Oddmu would suggest:
+.PP
+.nf
+.RS 4
+oddmu hashtags -update -dry-run
+.fi
+.RE
+.PP
+And then do it:
+.PP
+.nf
+.RS 4
+oddmu hashtags -update
+.fi
+.RE
+.PP
 .SH SEE ALSO
 .PP
 \fIoddmu\fR(1)

man/oddmu-hashtags.1.txt

@@ -2,16 +2,27 @@ ODDMU-HASHTAGS(1)
 
 # NAME
 
-oddmu-hashtags - count the hashtags used
+oddmu-hashtags - work with hashtags
 
 # SYNOPSIS
 
 *oddmu hashtags*
 
+*oddmu hashtags -update* [*-dry-run*]
+
 # DESCRIPTION
 
-The "hashtags" subcommand counts all the hashtags used and lists them, separated
-by a TAB character.
+By default, the "hashtags" subcommand counts all the hashtags used and lists
+them, separated by a TAB character.
+
+With the *-update* flag, the hashtag pages are update with links to all the blog
+pages having the corresponding tag. This only necessary when migrating a
+collection of Markdown files. Ordinarily, Oddmu maintains the hashtag pages
+automatically. When writing pages offline, use _oddmu-notify_(1) to update the
+hashtag pages.
+
+Use the *-dry-run* flag to see what would change with the *-update* flag without
+actually changing any files.
 
 # EXAMPLES
 
@@ -21,6 +32,18 @@ List the top 10 hashtags. This requires 11 lines because of the header line.
 oddmu hashtags | head -n 11
 ```
 
+See what kind of changes Oddmu would suggest:
+
+```
+oddmu hashtags -update -dry-run
+```
+
+And then do it:
+
+```
+oddmu hashtags -update
+```
+
 # SEE ALSO
 
 _oddmu_(1)

man/oddmu-html.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-HTML" "1" "2024-08-29"
+.TH "ODDMU-HTML" "1" "2026-01-03"
 .PP
 .SH NAME
 .PP
@@ -13,21 +13,21 @@ oddmu-html - render Oddmu page HTML
 .PP
 .SH SYNOPSIS
 .PP
-\fBoddmu html\fR [-view] \fIpage-name\fR
+\fBoddmu html\fR [\fB-template\fR \fItemplate-name\fR] \fIpage-name\fR
 .PP
 .SH DESCRIPTION
 .PP
-The "html" subcommand opens the Markdown file for the given page name (appending
-the ".\&md" extension) and prints the HTML to STDOUT without invoking the
-"view.\&html" template.\& Use "-" as the page name if you want to read Markdown from
-\fBstdin\fR.\&
+The "html" subcommand opens the given Markdown file and prints the resulting
+HTML to STDOUT without invoking the "view.\&html" template.\& Use "-" as the page
+name if you want to read Markdown from \fBstdin\fR.\&
 .PP
 .SH OPTIONS
 .PP
-\fB-view\fR
+\fB-template\fR \fItemplate-name\fR
 .RS 4
-Use the "view.\&html" template to render the page.\& Without this, the HTML
-lacks html and body tags.\&
+Use the given template to render the page.\& Without this, the HTML lacks
+html and body tags.\& The only two options that make sense are "view.\&html"
+and "static.\&html".\&
 .PP
 .RE
 .SH EXAMPLES
@@ -36,7 +36,7 @@ Generate "README.\&html" from "README.\&md":
 .PP
 .nf
 .RS 4
-oddmu html README > README\&.html
+oddmu html README\&.md > README\&.html
 .fi
 .RE
 .PP

man/oddmu-html.1.txt

@@ -6,27 +6,27 @@ oddmu-html - render Oddmu page HTML
 
 # SYNOPSIS
 
-*oddmu html* [-view] _page-name_
+*oddmu html* [*-template* _template-name_] _page-name_
 
 # DESCRIPTION
 
-The "html" subcommand opens the Markdown file for the given page name (appending
-the ".md" extension) and prints the HTML to STDOUT without invoking the
-"view.html" template. Use "-" as the page name if you want to read Markdown from
-*stdin*.
+The "html" subcommand opens the given Markdown file and prints the resulting
+HTML to STDOUT without invoking the "view.html" template. Use "-" as the page
+name if you want to read Markdown from *stdin*.
 
 # OPTIONS
 
-*-view*
-	Use the "view.html" template to render the page. Without this, the HTML
-	lacks html and body tags.
+*-template* _template-name_
+	Use the given template to render the page. Without this, the HTML lacks
+	html and body tags. The only two options that make sense are "view.html"
+	and "static.html".
 
 # EXAMPLES
 
 Generate "README.html" from "README.md":
 
 ```
-oddmu html README > README.html
+oddmu html README.md > README.html
 ```
 
 Alternatively:

man/oddmu-links.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-LINKS" "1" "2024-08-15"
+.TH "ODDMU-LINKS" "1" "2025-04-05"
 .PP
 .SH NAME
 .PP
@@ -17,8 +17,8 @@ oddmu-links - list outgoing links for pages
 .PP
 .SH DESCRIPTION
 .PP
-The "links" subcommand lists outgoing links for one or more page names.\& Use "-"
-as the page name if you want to read Markdown from \fBstdin\fR.\&
+The "links" subcommand lists outgoing links for one or more Markdown files.\& Use
+"-" as the page name if you want to read Markdown from \fBstdin\fR.\&
 .PP
 .SH SEE ALSO
 .PP

man/oddmu-links.1.txt

@@ -10,8 +10,8 @@ oddmu-links - list outgoing links for pages
 
 # DESCRIPTION
 
-The "links" subcommand lists outgoing links for one or more page names. Use "-"
-as the page name if you want to read Markdown from *stdin*.
+The "links" subcommand lists outgoing links for one or more Markdown files. Use
+"-" as the page name if you want to read Markdown from *stdin*.
 
 # SEE ALSO
 

man/oddmu-list.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-LIST" "1" "2024-08-29"
+.TH "ODDMU-LIST" "1" "2025-08-31"
 .PP
 .SH NAME
 .PP

man/oddmu-man.1

@@ -0,0 +1,39 @@
+.\" Generated by scdoc 1.11.3
+.\" Complete documentation for this program is not available as a GNU info page
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.nh
+.ad l
+.\" Begin generated content:
+.TH "ODDMU-MAN" "1" "2026-02-11"
+.PP
+.SH NAME
+.PP
+oddmu-man - print the manual pages
+.PP
+.SH SYNOPSIS
+.PP
+\fBoddmu man\fR
+.PP
+\fBoddmu man\fR \fItopic\fR
+.PP
+.SH DESCRIPTION
+.PP
+The "man" subcommand lists the topics available or prints the manual page for
+the given topic.\&
+.PP
+Example:
+.PP
+.nf
+.RS 4
+oddmu man apache
+.fi
+.RE
+.PP
+.SH SEE ALSO
+.PP
+\fIoddmu\fR(1)
+.PP
+.SH AUTHORS
+.PP
+Maintained by Alex Schroeder <alex@gnu.\&org>.\&

man/oddmu-man.1.txt

@@ -0,0 +1,30 @@
+ODDMU-MAN(1)
+
+# NAME
+
+oddmu-man - print the manual pages
+
+# SYNOPSIS
+
+*oddmu man*
+
+*oddmu man* _topic_
+
+# DESCRIPTION
+
+The "man" subcommand lists the topics available or prints the manual page for
+the given topic.
+
+Example:
+
+```
+oddmu man apache
+```
+
+# SEE ALSO
+
+_oddmu_(1)
+
+# AUTHORS
+
+Maintained by Alex Schroeder <alex@gnu.org>.

man/oddmu-nginx.5

@@ -5,19 +5,19 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-NGINX" "5" "2024-08-29"
+.TH "ODDMU-NGINX" "5" "2026-01-03"
 .PP
 .SH NAME
 .PP
-oddmu-nginx - how to setup Nginx as a reverse proxy for Oddmu
+oddmu-nginx - how to setup nginx as a reverse proxy for Oddmu
 .PP
 .SH DESCRIPTION
 .PP
 The oddmu program serves the current working directory as a wiki on port 8080.\&
 This is an unpriviledged port so an ordinary user account can do this.\&
 .PP
-This page explains how to setup NGINX on Debian to act as a reverse proxy for
-Oddmu.\& Once this is done, you can use NGINX to provide HTTPS, request users to
+This page explains how to setup nginx on Debian to act as a reverse proxy for
+Oddmu.\& Once this is done, you can use nginx to provide HTTPS, request users to
 authenticate themselves, and so on.\&
 .PP
 .SH CONFIGURATION
@@ -27,7 +27,7 @@ section.\& Add a new \fIlocation\fR section after the existing \fIlocation\fR se
 .PP
 .nf
 .RS 4
-location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/ {
+location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|search|sitemap|archive)/ {
         proxy_pass http://localhost:8080;
 }
 .fi
@@ -53,7 +53,7 @@ location ~ ^/(view|diff|search)/ {
         proxy_pass http://localhost:8080;
 }
 # password required
-location ~ ^/(edit|save|add|append|upload|drop|list|delete|rename|archive)/ {
+location ~ ^/(edit|save|add|append|upload|drop|archive)/ {
         auth_basic            "Oddmu author";
         auth_basic_user_file  /etc/nginx/conf\&.d/htpasswd;
         proxy_pass            http://localhost:8080;
@@ -97,7 +97,7 @@ server configuration.\& On a Debian system, that'\&d be in
 .PP
 .nf
 .RS 4
-location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/ {
+location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|search|sitemap|archive)/ {
   proxy_pass http://unix:/run/oddmu/oddmu\&.sock:;
 }
 .fi

man/oddmu-nginx.5.txt

@@ -2,15 +2,15 @@ ODDMU-NGINX(5)
 
 # NAME
 
-oddmu-nginx - how to setup Nginx as a reverse proxy for Oddmu
+oddmu-nginx - how to setup nginx as a reverse proxy for Oddmu
 
 # DESCRIPTION
 
 The oddmu program serves the current working directory as a wiki on port 8080.
 This is an unpriviledged port so an ordinary user account can do this.
 
-This page explains how to setup NGINX on Debian to act as a reverse proxy for
-Oddmu. Once this is done, you can use NGINX to provide HTTPS, request users to
+This page explains how to setup nginx on Debian to act as a reverse proxy for
+Oddmu. Once this is done, you can use nginx to provide HTTPS, request users to
 authenticate themselves, and so on.
 
 # CONFIGURATION
@@ -19,7 +19,7 @@ The site is defined in "/etc/nginx/sites-available/default", in the _server_
 section. Add a new _location_ section after the existing _location_ section:
 
 ```
-location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/ {
+location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|search|sitemap|archive)/ {
         proxy_pass http://localhost:8080;
 }
 ```
@@ -43,7 +43,7 @@ location ~ ^/(view|diff|search)/ {
         proxy_pass http://localhost:8080;
 }
 # password required
-location ~ ^/(edit|save|add|append|upload|drop|list|delete|rename|archive)/ {
+location ~ ^/(edit|save|add|append|upload|drop|archive)/ {
         auth_basic            "Oddmu author";
         auth_basic_user_file  /etc/nginx/conf.d/htpasswd;
         proxy_pass            http://localhost:8080;
@@ -81,7 +81,7 @@ server configuration. On a Debian system, that'd be in
 "/etc/nginx/sites-available/default".
 
 ```
-location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|list|delete|rename|search|archive)/ {
+location ~ ^/(view|preview|diff|edit|save|add|append|upload|drop|search|sitemap|archive)/ {
   proxy_pass http://unix:/run/oddmu/oddmu.sock:;
 }
 ```

man/oddmu-notify.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-NOTIFY" "1" "2024-08-29"
+.TH "ODDMU-NOTIFY" "1" "2025-04-05"
 .PP
 .SH NAME
 .PP
@@ -17,8 +17,8 @@ oddmu-notify - add links to changes.\&md, index.\&md, and hashtag pages
 .PP
 .SH DESCRIPTION
 .PP
-The "notify" subcommand takes all the page names provided (without the ".\&md"
-extension) and adds links to it from other pages.\&
+The "notify" subcommand takes all the Markdown files provided and adds links to
+these pages from other pages.\&
 .PP
 A new link is added to the \fBchanges\fR page in the current directory if it doesn'\&t
 exist.\& The current date of the machine Oddmu is running on is used as the
@@ -57,7 +57,7 @@ it exists):
 .PP
 .nf
 .RS 4
-oddmu notify 2023-11-05-climate
+oddmu notify 2023-11-05-climate\&.md
 .fi
 .RE
 .PP

man/oddmu-notify.1.txt

@@ -10,8 +10,8 @@ oddmu-notify - add links to changes.md, index.md, and hashtag pages
 
 # DESCRIPTION
 
-The "notify" subcommand takes all the page names provided (without the ".md"
-extension) and adds links to it from other pages.
+The "notify" subcommand takes all the Markdown files provided and adds links to
+these pages from other pages.
 
 A new link is added to the *changes* page in the current directory if it doesn't
 exist. The current date of the machine Oddmu is running on is used as the
@@ -49,7 +49,7 @@ After writing the file "2023-11-05-climate.md" containing the hashtag
 it exists):
 
 ```
-oddmu notify 2023-11-05-climate
+oddmu notify 2023-11-05-climate.md
 ```
 
 The changes file might look as follows:

man/oddmu-releases.7

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-RELEASES" "7" "2024-11-15"
+.TH "ODDMU-RELEASES" "7" "2026-02-11"
 .PP
 .SH NAME
 .PP
@@ -15,6 +15,172 @@ oddmu-releases - what'\&s new?\&
 .PP
 This page lists user-visible features and template changes to consider.\&
 .PP
+.SS 1.21 (unreleased)
+.PP
+Write any missing templates when Oddmu starts up.\&
+.PP
+Add man subcommand to print manual pages.\&
+.PP
+Both of these features make it possible to distribute just the binary.\&
+.PP
+.SS 1.20 (2026)
+.PP
+Add -shrink and -glob options to the \fIstatic\fR subcommand.\& See \fIoddmu-static\fR(1)
+for more.\&
+.PP
+Some tools were used to check the code (goimports, golint, gocritic).\&
+Unfortunately, the resulting changes necessitates a change in the templates
+("feed.\&html", "preview.\&html", "search.\&html", "static.\&html", "view.\&html"):
+"{{.\&Html}}" must be changed to "{{.\&HTML}}".\& One way to do this:
+.PP
+.nf
+.RS 4
+find \&. -regex \&'\&.*/(feed|preview|search|static|view).html\&' 
+  -exec sed -i~ \&'s/{{\&.Html}}/{{\&.HTML}}/g\&' \&'{}\&' \&'+\&'
+.fi
+.RE
+.PP
+The \fIfeed\fR subcommand uses the page URL to extract a pubDate instead of relying
+on the file'\&s last modified time.\& For a complete feed (an archive), the last
+modified time is less important.\&
+.PP
+The feed for the index page is paginated, like other feeds.\& But since it grows
+faster than any of the feeds for hashtag pages, presumably, an extra features
+was added: on the first and on the last page of the feed, a link to the next or
+the previous year is added, if such a page exists.\& This works if at beginning of
+every year, you move all the entries on to a dedicated year page.\& You need to
+add the necessary links to the "feed.\&html" template.\& See \fIoddmu-templates\fR(5)
+for more.\&
+.PP
+Example:
+.PP
+.nf
+.RS 4
+<rss xmlns:atom="http://www\&.w3\&.org/2005/Atom" version="2\&.0"
+     xmlns:fh="http://purl\&.org/syndication/history/1\&.0">
+  …
+  {{if \&.PrevYear}}
+    <atom:link href="https://example\&.org/view/{{\&.Dir}}{{\&.PrevYear}}\&.rss?n={{\&.N}}"
+     rel="previous" type="application/rss+xml"/>
+  {{end}}
+  {{if \&.NextYear}}
+    <atom:link href="https://example\&.org/view/{{\&.Dir}}{{\&.NextYear}}\&.rss?n={{\&.N}}"
+     rel="next" type="application/rss+xml"/>
+  {{end}}
+  …
+.fi
+.RE
+.PP
+Add \fIsitemap\fR subcommand and handler.\& See \fIoddmu-sitemap\fR(1) for more.\& If you
+want to make it available for search engines and the like, you most likely have
+to add it to your proxy configuration.\& See \fIoddmu-apache\fR(5) or \fIoddmu-nginx\fR(5)
+for more.\&
+.PP
+.SS 1.19 (2025)
+.PP
+Add \fIfeed\fR subcommand.\& This produces a "complete" feed.\&
+.PP
+Add feed pagination for the \fIfeed\fR action.\& This produces a "paginated" feed.\&
+.PP
+See RFC 5005 for more information.\&
+.PP
+If you like the idea of feed pagination (not a given since that also helps bots
+scrape your site!\&) you need to add the necessary links to the "feed.\&html"
+template.\& See \fIoddmu-templates\fR(5) for more.\&
+.PP
+Example, adding the feed history namespace:
+.PP
+.nf
+.RS 4
+<rss xmlns:atom="http://www\&.w3\&.org/2005/Atom" version="2\&.0"
+     xmlns:fh="http://purl\&.org/syndication/history/1\&.0">
+  …
+  {{if \&.From}}
+  <atom:link rel="previous" type="application/rss+xml"
+   href="https://example\&.org/view/{{\&.Path}}\&.rss?from={{\&.Prev}}&amp;n={{\&.N}}"/>
+  {{end}}
+  {{if \&.Next}}
+  <atom:link rel="next" type="application/rss+xml"
+   href="https://example\&.org/view/{{\&.Path}}\&.rss?from={{\&.Next}}&amp;n={{\&.N}}"/>
+  {{end}}
+  {{if \&.Complete}}<fh:complete/>{{end}}
+  …
+.fi
+.RE
+.PP
+.SS 1.18 (2025)
+.PP
+The \fIhashtags\fR gained the option of checking and fixing the hashtag pages by
+adding missing links to tagged blog pages.\& See \fIoddmu-hashtags\fR(1) for more.\&
+.PP
+In an effort to remove features that can be handled by the web server, the
+\fIlist\fR, \fIdelete\fR and \fIrename\fR actions were removed again.\& See \fIoddmu-webdav\fR(5)
+for a better solution.\&
+.PP
+You probably need to remove a sentence linking to the list action from the
+"upload.\&html" template.\&
+.PP
+.SS 1.17 (2025)
+.PP
+You need to update the "upload.\&html" template.\& Many things have changed!\& See
+\fIoddmu-templates\fR(5) for more.\&
+.PP
+You probably want to ensure that the upload link on the "view.\&html" template and
+others, if you added it, has a \fIfilename\fR and \fIpagename\fR parameters.\&
+.PP
+Example:
+.PP
+.nf
+.RS 4
+<a href="/upload/{{\&.Dir}}?filename={{\&.Base}}-1\&.jpg&pagename={{\&.Base}}">Upload</a>
+.fi
+.RE
+.PP
+You need to change {{.\&Name}} to {{.\&Path}} when it is used in URLs, in the
+"list.\&html" template.\& If you don'\&t do this, file deleting and rename may not
+work on files containing a comma, a semicolon, a questionmark or a hash
+character.\& This fix was necessary because URLs for files containing a
+questionmark or a hash character would end the path at this character and treat
+the rest as a query parameter or fragment, respectively.\&
+.PP
+Updated the example themes.\& Some of my sites got a text area that tries to take
+all the vertical space available.\& This is great for monitors in portrait mode.\&
+.PP
+\fIlist\fR action now skips dot files.\&
+.PP
+.SS 1.16 (2025)
+.PP
+Add support for WebP images for uploading and resizing.\&
+.PP
+You need to change {{.\&Name}} to {{.\&Path}} in HTML templates where pages are
+concerned.\& If you don'\&t do this, your page names (i.\&e.\& filenames for pages) may
+not include a comma, a semicolon, a questionmark or a hash sign.\& This fix was
+necessary because file uploads of filenames with non-ASCII characters ended up
+double-encoded.\&
+.PP
+Note that on the "list.\&html" template, {{.\&Name}} refers to file instead of a
+page and File.\&Path() isn'\&t implemented, yet.\& This is fixed in the next release.\&
+.PP
+Improved the example themes.\& The chat theme got better list styling and better
+upload functionality with automatic "add" button; the plain theme got rocket
+links via JavaScript; the alexschroeder.\&ch theme got a preview button and better
+image support for upload and search; the transjovian.\&org theme got better image
+support for upload.\&
+.PP
+Switch the \fIhtml\fR, \fIlink\fR, \fInotify\fR and \fItoc\fR subcommand to take filenames
+(including the `.\&md` suffix) instead of page names (without the `.\&md` suffix).\&
+.PP
+.SS 1.15 (2025)
+.PP
+Fix the hashtag detection.\& This was necessary to cut down on the many false
+positives.\& They were most obvious with the \fIhashtags\fR subcommand.\& Now the
+Markdown parser is used at startup to index the pages, making startup slower
+(about twice as long with my blog).\& The Markdown parser is also used to parse
+search terms (where it makes little difference).\&
+.PP
+Fix the timestamp for backup files.\& This was necessary because the diff didn'\&t
+work as intended.\&
+.PP
 .SS 1.14 (2024)
 .PP
 Add \fIlist\fR, \fIdelete\fR and \fIrename\fR actions.\&
@@ -26,7 +192,7 @@ together with appropriate permission checks.\&
 See \fIoddmu-apache\fR(5) or \fIoddmu-nginx\fR(5) for example.\&
 .PP
 In addition to that, you might want a link to the \fIlist\fR action from one of the
-existing templates.\& For example, from upload.\&html:
+existing templates.\& For example, from the "upload.\&html" template:
 .PP
 .nf
 .RS 4
@@ -63,10 +229,9 @@ These are the quotation marks currently supported: '\&foo'\& "foo" ‘foo’ ‚
 “foo” „foo“ ”foo” «foo» »foo« ‹foo› ›foo‹ ｢foo｣ 「ｆｏｏ」 『ｆｏｏ』 – any such
 quoted text is searched as-is, including whitespace.\&
 .PP
-Add loading="lazy" for images in search.\&html
-.PP
-If you want to take advantage of this, you'\&ll need to adapt your "search.\&html"
-template accordingly.\& Use like this, for example:
+Add loading="lazy" for images in the search template.\& If you want to take
+advantage of this, you'\&ll need to adapt your "search.\&html" template accordingly.\&
+Use like this, for example:
 .PP
 .nf
 .RS 4
@@ -126,10 +291,10 @@ If you want to take advantage of this, you'\&ll need to adapt your templates
 accordingly.\& The "preview.\&html" template is a mix of "view.\&html" and
 "edit.\&html".\&
 .PP
-There is an optional change to make to copies of \fIupload.\&html\fR if you upload
-multiple images at a time.\& Instead of showing just the link to the last upload,
-you can now show the link (and the images or links, if you want to) to all the
-files uploaded.\& Use like this, for example:
+There is an optional change to make to copies of the "upload.\&html" template if
+you upload multiple images at a time.\& Instead of showing just the link to the
+last upload, you can now show the link (and the images or links, if you want to)
+to all the files uploaded.\& Use like this, for example:
 .PP
 .nf
 .RS 4
@@ -139,9 +304,9 @@ Links:<tt>{{range \&.Actual}}<br>![]({{\&.}}){{end}}</tt>
 .PP
 .SS 1.9 (2024)
 .PP
-There is a change to make to copies of \fIupload.\&html\fR if subdirectories are being
-used.\& The \fILast\fR property no longer contains the directory.\& It has to be added
-to the template as follows:
+There is a change to make to copies of the "upload.\&html" template if
+subdirectories are being used.\& The \fILast\fR property no longer contains the
+directory.\& It has to be added to the template as follows:
 .PP
 .nf
 .RS 4
@@ -169,7 +334,7 @@ The upload template can use the \fIToday\fR property.\&
 The upload template comes with JavaScript that allows users to paste images or
 drag and drop files.\&
 .PP
-The upload template changed the id for the filename field from `text` to `name`.\&
+The upload template changed the id for the filename field from "text" to "name".\&
 .PP
 The source repository now comes with example templates.\&
 .PP
@@ -179,7 +344,7 @@ No user-visible changes.\& Documentation and code comments got better.\&
 .PP
 .SS 1.7 (2024)
 .PP
-Allow upload of multiple files.\& This requires an update to the \fIupload.\&html\fR
+Allow upload of multiple files.\& This requires an update to the "upload.\&html"
 template: Add the \fImultiple\fR attribute to the file input element and change the
 label from "file" to "files".\&
 .PP

man/oddmu-releases.7.txt

@@ -8,6 +8,164 @@ oddmu-releases - what's new?
 
 This page lists user-visible features and template changes to consider.
 
+## 1.21 (unreleased)
+
+Write any missing templates when Oddmu starts up.
+
+Add man subcommand to print manual pages.
+
+Both of these features make it possible to distribute just the binary.
+
+## 1.20 (2026)
+
+Add -shrink and -glob options to the _static_ subcommand. See _oddmu-static_(1)
+for more.
+
+Some tools were used to check the code (goimports, golint, gocritic).
+Unfortunately, the resulting changes necessitates a change in the templates
+("feed.html", "preview.html", "search.html", "static.html", "view.html"):
+"{{.Html}}" must be changed to "{{.HTML}}". One way to do this:
+
+```
+find . -regex '.*/\(feed\|preview\|search\|static\|view\)\.html' \
+  -exec sed -i~ 's/{{.Html}}/{{.HTML}}/g' '{}' '+'
+```
+
+The _feed_ subcommand uses the page URL to extract a pubDate instead of relying
+on the file's last modified time. For a complete feed (an archive), the last
+modified time is less important.
+
+The feed for the index page is paginated, like other feeds. But since it grows
+faster than any of the feeds for hashtag pages, presumably, an extra features
+was added: on the first and on the last page of the feed, a link to the next or
+the previous year is added, if such a page exists. This works if at beginning of
+every year, you move all the entries on to a dedicated year page. You need to
+add the necessary links to the "feed.html" template. See _oddmu-templates_(5)
+for more.
+
+Example:
+
+```
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"
+     xmlns:fh="http://purl.org/syndication/history/1.0">
+  …
+  {{if .PrevYear}}
+    <atom:link href="https://example.org/view/{{.Dir}}{{.PrevYear}}.rss?n={{.N}}"
+     rel="previous" type="application/rss+xml"/>
+  {{end}}
+  {{if .NextYear}}
+    <atom:link href="https://example.org/view/{{.Dir}}{{.NextYear}}.rss?n={{.N}}"
+     rel="next" type="application/rss+xml"/>
+  {{end}}
+  …
+```
+
+Add _sitemap_ subcommand and handler. See _oddmu-sitemap_(1) for more. If you
+want to make it available for search engines and the like, you most likely have
+to add it to your proxy configuration. See _oddmu-apache_(5) or _oddmu-nginx_(5)
+for more.
+
+## 1.19 (2025)
+
+Add _feed_ subcommand. This produces a "complete" feed.
+
+Add feed pagination for the _feed_ action. This produces a "paginated" feed.
+
+See RFC 5005 for more information.
+
+If you like the idea of feed pagination (not a given since that also helps bots
+scrape your site!) you need to add the necessary links to the "feed.html"
+template. See _oddmu-templates_(5) for more.
+
+Example, adding the feed history namespace:
+
+```
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"
+     xmlns:fh="http://purl.org/syndication/history/1.0">
+  …
+  {{if .From}}
+  <atom:link rel="previous" type="application/rss+xml"
+   href="https://example.org/view/{{.Path}}.rss?from={{.Prev}}&amp;n={{.N}}"/>
+  {{end}}
+  {{if .Next}}
+  <atom:link rel="next" type="application/rss+xml"
+   href="https://example.org/view/{{.Path}}.rss?from={{.Next}}&amp;n={{.N}}"/>
+  {{end}}
+  {{if .Complete}}<fh:complete/>{{end}}
+  …
+```
+
+## 1.18 (2025)
+
+The _hashtags_ gained the option of checking and fixing the hashtag pages by
+adding missing links to tagged blog pages. See _oddmu-hashtags_(1) for more.
+
+In an effort to remove features that can be handled by the web server, the
+_list_, _delete_ and _rename_ actions were removed again. See _oddmu-webdav_(5)
+for a better solution.
+
+You probably need to remove a sentence linking to the list action from the
+"upload.html" template.
+
+## 1.17 (2025)
+
+You need to update the "upload.html" template. Many things have changed! See
+_oddmu-templates_(5) for more.
+
+You probably want to ensure that the upload link on the "view.html" template and
+others, if you added it, has a _filename_ and _pagename_ parameters.
+
+Example:
+
+```
+<a href="/upload/{{.Dir}}?filename={{.Base}}-1.jpg&pagename={{.Base}}">Upload</a>
+```
+
+You need to change {{.Name}} to {{.Path}} when it is used in URLs, in the
+"list.html" template. If you don't do this, file deleting and rename may not
+work on files containing a comma, a semicolon, a questionmark or a hash
+character. This fix was necessary because URLs for files containing a
+questionmark or a hash character would end the path at this character and treat
+the rest as a query parameter or fragment, respectively.
+
+Updated the example themes. Some of my sites got a text area that tries to take
+all the vertical space available. This is great for monitors in portrait mode.
+
+_list_ action now skips dot files.
+
+## 1.16 (2025)
+
+Add support for WebP images for uploading and resizing.
+
+You need to change {{.Name}} to {{.Path}} in HTML templates where pages are
+concerned. If you don't do this, your page names (i.e. filenames for pages) may
+not include a comma, a semicolon, a questionmark or a hash sign. This fix was
+necessary because file uploads of filenames with non-ASCII characters ended up
+double-encoded.
+
+Note that on the "list.html" template, {{.Name}} refers to file instead of a
+page and File.Path() isn't implemented, yet. This is fixed in the next release.
+
+Improved the example themes. The chat theme got better list styling and better
+upload functionality with automatic "add" button; the plain theme got rocket
+links via JavaScript; the alexschroeder.ch theme got a preview button and better
+image support for upload and search; the transjovian.org theme got better image
+support for upload.
+
+Switch the _html_, _link_, _notify_ and _toc_ subcommand to take filenames
+(including the `.md` suffix) instead of page names (without the `.md` suffix).
+
+## 1.15 (2025)
+
+Fix the hashtag detection. This was necessary to cut down on the many false
+positives. They were most obvious with the _hashtags_ subcommand. Now the
+Markdown parser is used at startup to index the pages, making startup slower
+(about twice as long with my blog). The Markdown parser is also used to parse
+search terms (where it makes little difference).
+
+Fix the timestamp for backup files. This was necessary because the diff didn't
+work as intended.
+
 ## 1.14 (2024)
 
 Add _list_, _delete_ and _rename_ actions.
@@ -19,7 +177,7 @@ together with appropriate permission checks.
 See _oddmu-apache_(5) or _oddmu-nginx_(5) for example.
 
 In addition to that, you might want a link to the _list_ action from one of the
-existing templates. For example, from upload.html:
+existing templates. For example, from the "upload.html" template:
 
 ```
 <p>You can rename and delete files <a href="/list/{{.Dir}}">from the file list</a>.
@@ -52,10 +210,9 @@ These are the quotation marks currently supported: 'foo' "foo" ‘foo’ ‚foo
 “foo” „foo“ ”foo” «foo» »foo« ‹foo› ›foo‹ ｢foo｣ 「ｆｏｏ」 『ｆｏｏ』 – any such
 quoted text is searched as-is, including whitespace.
 
-Add loading="lazy" for images in search.html
-
-If you want to take advantage of this, you'll need to adapt your "search.html"
-template accordingly. Use like this, for example:
+Add loading="lazy" for images in the search template. If you want to take
+advantage of this, you'll need to adapt your "search.html" template accordingly.
+Use like this, for example:
 
 ```
 {{range .Items}}
@@ -107,10 +264,10 @@ If you want to take advantage of this, you'll need to adapt your templates
 accordingly. The "preview.html" template is a mix of "view.html" and
 "edit.html".
 
-There is an optional change to make to copies of _upload.html_ if you upload
-multiple images at a time. Instead of showing just the link to the last upload,
-you can now show the link (and the images or links, if you want to) to all the
-files uploaded. Use like this, for example:
+There is an optional change to make to copies of the "upload.html" template if
+you upload multiple images at a time. Instead of showing just the link to the
+last upload, you can now show the link (and the images or links, if you want to)
+to all the files uploaded. Use like this, for example:
 
 ```
 Links:<tt>{{range .Actual}}<br>![]({{.}}){{end}}</tt>
@@ -118,9 +275,9 @@ Links:<tt>{{range .Actual}}<br>![]({{.}}){{end}}</tt>
 
 ## 1.9 (2024)
 
-There is a change to make to copies of _upload.html_ if subdirectories are being
-used. The _Last_ property no longer contains the directory. It has to be added
-to the template as follows:
+There is a change to make to copies of the "upload.html" template if
+subdirectories are being used. The _Last_ property no longer contains the
+directory. It has to be added to the template as follows:
 
 ```
 {{if ne .Last ""}}
@@ -144,7 +301,7 @@ The upload template can use the _Today_ property.
 The upload template comes with JavaScript that allows users to paste images or
 drag and drop files.
 
-The upload template changed the id for the filename field from `text` to `name`.
+The upload template changed the id for the filename field from "text" to "name".
 
 The source repository now comes with example templates.
 
@@ -154,7 +311,7 @@ No user-visible changes. Documentation and code comments got better.
 
 ## 1.7 (2024)
 
-Allow upload of multiple files. This requires an update to the _upload.html_
+Allow upload of multiple files. This requires an update to the "upload.html"
 template: Add the _multiple_ attribute to the file input element and change the
 label from "file" to "files".
 

man/oddmu-replace.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-REPLACE" "1" "2024-08-29"
+.TH "ODDMU-REPLACE" "1" "2025-03-05"
 .PP
 .SH NAME
 .PP
@@ -42,7 +42,7 @@ Replace "Oddmu" in the Markdown files of the current directory:
 .PP
 .nf
 .RS 4
-oddmu replace Oddmu Oddµ
+oddmu replace Oddmu Oddμ
 .fi
 .RE
 .PP

man/oddmu-replace.1.txt

@@ -30,7 +30,7 @@ the current directory and its subdirectories.
 Replace "Oddmu" in the Markdown files of the current directory:
 
 ```
-oddmu replace Oddmu Oddµ
+oddmu replace Oddmu Oddμ
 ```
 
 Result:

man/oddmu-search.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-SEARCH" "1" "2024-08-29"
+.TH "ODDMU-SEARCH" "1" "2025-03-05"
 .PP
 .SH NAME
 .PP
@@ -65,7 +65,7 @@ The ordering of terms does not matter.\&
 ~/src/oddmu $ oddmu search Alex Schroeder
 Search for Alex Schroeder, page 1: 3 results
 * [Alex Schroeder theme](themes/alexschroeder\&.ch/README)
-* [Oddµ: A minimal wiki](README)
+* [Oddμ: A minimal wiki](README)
 * [Themes](themes/index)
 .fi
 .RE

man/oddmu-search.1.txt

@@ -49,7 +49,7 @@ The ordering of terms does not matter.
 ~/src/oddmu $ oddmu search Alex Schroeder
 Search for Alex Schroeder, page 1: 3 results
 * [Alex Schroeder theme](themes/alexschroeder.ch/README)
-* [Oddµ: A minimal wiki](README)
+* [Oddμ: A minimal wiki](README)
 * [Themes](themes/index)
 ```
 

man/oddmu-search.7

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-SEARCH" "7" "2024-02-19"
+.TH "ODDMU-SEARCH" "7" "2025-03-05"
 .PP
 .SH NAME
 .PP
@@ -57,9 +57,9 @@ exactly (without the leading '\&#'\&) is listed first, even if it doesn'\&t cont
 the hashtag.\& It is assumed that this page offers some kind of introduction to
 people searching for the hashtag.\&
 .PP
-Example: When people click on the hashtag "#Oddµ" and a page named "Oddµ" exists
-(in other words, the file "Oddµ.\&md" exists), it is prepended to the results even
-if it doesn'\&t have the hashtag "#Oddµ" and even if it has a title of "Oddµ, a
+Example: When people click on the hashtag "#Oddμ" and a page named "Oddμ" exists
+(in other words, the file "Oddμ.\&md" exists), it is prepended to the results even
+if it doesn'\&t have the hashtag "#Oddμ" and even if it has a title of "Oddμ, a
 minimal wiki" (which wouldn'\&t be an exact match).\&
 .PP
 The score and highlighting of snippets is used to help visitors decide which

man/oddmu-search.7.txt

@@ -44,9 +44,9 @@ exactly (without the leading '#') is listed first, even if it doesn't contain
 the hashtag. It is assumed that this page offers some kind of introduction to
 people searching for the hashtag.
 
-Example: When people click on the hashtag "#Oddµ" and a page named "Oddµ" exists
-(in other words, the file "Oddµ.md" exists), it is prepended to the results even
-if it doesn't have the hashtag "#Oddµ" and even if it has a title of "Oddµ, a
+Example: When people click on the hashtag "#Oddμ" and a page named "Oddμ" exists
+(in other words, the file "Oddμ.md" exists), it is prepended to the results even
+if it doesn't have the hashtag "#Oddμ" and even if it has a title of "Oddμ, a
 minimal wiki" (which wouldn't be an exact match).
 
 The score and highlighting of snippets is used to help visitors decide which

man/oddmu-sitemap.1

@@ -0,0 +1,49 @@
+.\" Generated by scdoc 1.11.3
+.\" Complete documentation for this program is not available as a GNU info page
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.nh
+.ad l
+.\" Begin generated content:
+.TH "ODDMU-SITEMAP" "1" "2026-01-03"
+.PP
+.SH NAME
+.PP
+oddmu-sitemap - print static sitemap.\&xml
+.PP
+.SH SYNOPSIS
+.PP
+\fBoddmu sitemap\fR [\fB-base\fR \fIURL\fR] [\fB-filter\fR \fIregexp\fR]
+.PP
+.SH DESCRIPTION
+.PP
+The "sitemap" subcommand prints the list of all pages in Sitemap format.\& Oddmu
+already serves the sitemap at the URL "/sitemap.\&xml" but if you'\&d prefer to
+provide a static file, use this command and redirect the output to a file called
+"sitemap.\&xml" in your document root at regular intervals.\&
+.PP
+If you do this, don'\&t proxy the "/sitemap" URL in the web server configuration.\&
+.PP
+Your "robots.\&txt" file, if you have one, should point at the sitemap you
+provide.\&
+.PP
+.SH OPTIONS
+.PP
+\fB-base\fR \fIURL\fR
+.RS 4
+The base URL is something like "https://example.\&org/view/".\&
+.RE
+\fB-filter\fR \fIregexp\fR
+.RS 4
+A regular expression matching the pages to exclude from the sitemap.\&
+This emulates the effect of the ODDMU_FILTER environment variable.\&
+.PP
+.RE
+.SH SEE ALSO
+.PP
+\fIoddmu\fR(1), \fIoddmu-filter\fR(7), \fIoddmu-apache\fR(1), \fIoddmu-nginx\fR(1),
+https://www.\&sitemaps.\&org/
+.PP
+.SH AUTHORS
+.PP
+Maintained by Alex Schroeder <alex@gnu.\&org>.\&

man/oddmu-sitemap.1.txt

@@ -0,0 +1,38 @@
+ODDMU-SITEMAP(1)
+
+# NAME
+
+oddmu-sitemap - print static sitemap.xml
+
+# SYNOPSIS
+
+*oddmu sitemap* [*-base* _URL_] [*-filter* _regexp_]
+
+# DESCRIPTION
+
+The "sitemap" subcommand prints the list of all pages in Sitemap format. Oddmu
+already serves the sitemap at the URL "/sitemap.xml" but if you'd prefer to
+provide a static file, use this command and redirect the output to a file called
+"sitemap.xml" in your document root at regular intervals.
+
+If you do this, don't proxy the "/sitemap" URL in the web server configuration.
+
+Your "robots.txt" file, if you have one, should point at the sitemap you
+provide.
+
+# OPTIONS
+
+*-base* _URL_
+	The base URL is something like "https://example.org/view/".
+*-filter* _regexp_
+	A regular expression matching the pages to exclude from the sitemap.
+	This emulates the effect of the ODDMU_FILTER environment variable.
+
+# SEE ALSO
+
+_oddmu_(1), _oddmu-filter_(7), _oddmu-apache_(1), _oddmu-nginx_(1),
+https://www.sitemaps.org/
+
+# AUTHORS
+
+Maintained by Alex Schroeder <alex@gnu.org>.

man/oddmu-static.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-STATIC" "1" "2024-08-29"
+.TH "ODDMU-STATIC" "1" "2026-02-06"
 .PP
 .SH NAME
 .PP
@@ -13,7 +13,7 @@ oddmu-static - create a static copy of the site
 .PP
 .SH SYNOPSIS
 .PP
-\fBoddmu static\fR \fIdir-name\fR
+\fBoddmu static\fR [\fB-jobs\fR \fIn\fR] [\fB-glob\fR \fIpattern\fR] [\fB-shrink\fR] \fIdir-name\fR
 .PP
 .SH DESCRIPTION
 .PP
@@ -28,7 +28,8 @@ pages get ".\&html" appended.\&
 If a page has a name case-insensitively matching a hashtag, a feed file is
 generated (ending with ".\&rss") if any suitable links are found.\& A suitable link
 for a feed item must appear in a bullet list item using an asterisk ("*").\& If
-no feed items are found, no feed is written.\&
+no feed items are found, no feed is written.\& The feed is limited to the ten most
+recent items.\&
 .PP
 Hidden files and directories (starting with a ".\&") and backup files (ending with
 a "~") are skipped.\&
@@ -38,12 +39,11 @@ the images take a lot more space than the text.\& On my blog in 2023 I had 2.\&6
 GiB of JPG files and 0.\&02 GiB of Markdown files.\& There is no point in copying
 all those images, most of the time.\&
 .PP
-Note, however: Hard links cannot span filesystems.\& A hard link is just an extra
-name for the same file.\& This is why the destination directory for the static
-site has to be on same filesystem as the current directory, if it contains any
-other files besides Markdown files.\&
+As hard links cannot span filesystems, all other files are \fIcopied\fR if the
+destination directory for the static site is not on same filesystem as the
+current directory.\&
 .PP
-Furthermore, in-place editing changes the file for all names.\& Avoid editing the
+Note that in-place editing changes the file for all names.\& Avoid editing the
 hard-linked files (anything that'\&s not a HTML file) in the destination
 directory, just to be on the safe side.\& Usually you should be fine, as an editor
 moves the file that'\&s being edited to a backup file and creates a new file.\& But
@@ -51,6 +51,35 @@ then again, who knows.\& A SQLite file, for example, would change in-place, and
 therefore making changes to it in the destination directory would change the
 original, too.\&
 .PP
+.SH OPTIONS
+.PP
+\fB-jobs\fR \fIn\fR
+.RS 4
+By default, two jobs are used to process the files.\& If your machine has
+more cores, you can increase the number of jobs.\&
+.PP
+.RE
+\fB-glob\fR \fIpattern\fR
+.RS 4
+By default, all files are used for the static export.\& You can limit the
+files used by providing a shell file name pattern.\& A "*" matches any
+number of characters; a "?\&" matches exactly one character; "[a-z]"
+matches a character listed, including ranges; "[^a-z]" matches a
+character not listed, including ranges; "\e" a backslash escapes the
+following character.\& You must use quotes around the pattern if you are
+using a shell as the shell would otherwise expand the pattern, resulting
+in the error "Exactly one target directory is required".\&
+.PP
+.PP
+.RE
+\fB-shrink\fR
+.RS 4
+By default, images are linked or copied.\& With this option, JPEG, PNG and
+WebP files are scaled down if more than 800 pixels wide and the quality
+is set to 30% for JPEG and WebP files.\& This is \fIbad quality\fR but the
+result is that these image files are very small.\&
+.PP
+.RE
 .SH EXAMPLES
 .PP
 Generate a static copy of the site, but only loading language detection for
@@ -89,7 +118,11 @@ speed language determination up.\&
 .PP
 .SH SEE ALSO
 .PP
-\fIoddmu\fR(1), \fIoddmu-templates\fR(5)
+See \fIoddmu\fR(1) and \fIoddmu-templates\fR(5) for general information.\&
+.PP
+See \fIoddmu-html\fR(1) for a subcommand that converts individual pages file to HTML
+and see \fIoddmu-feed\fR(1) for a subcommand that generates feeds for individual
+files.\&
 .PP
 .SH AUTHORS
 .PP

man/oddmu-static.1.txt

@@ -6,7 +6,7 @@ oddmu-static - create a static copy of the site
 
 # SYNOPSIS
 
-*oddmu static* _dir-name_
+*oddmu static* [*-jobs* _n_] [*-glob* _pattern_] [*-shrink*] _dir-name_
 
 # DESCRIPTION
 
@@ -21,7 +21,8 @@ pages get ".html" appended.
 If a page has a name case-insensitively matching a hashtag, a feed file is
 generated (ending with ".rss") if any suitable links are found. A suitable link
 for a feed item must appear in a bullet list item using an asterisk ("\*"). If
-no feed items are found, no feed is written.
+no feed items are found, no feed is written. The feed is limited to the ten most
+recent items.
 
 Hidden files and directories (starting with a ".") and backup files (ending with
 a "~") are skipped.
@@ -31,12 +32,11 @@ the images take a lot more space than the text. On my blog in 2023 I had 2.62
 GiB of JPG files and 0.02 GiB of Markdown files. There is no point in copying
 all those images, most of the time.
 
-Note, however: Hard links cannot span filesystems. A hard link is just an extra
-name for the same file. This is why the destination directory for the static
-site has to be on same filesystem as the current directory, if it contains any
-other files besides Markdown files.
+As hard links cannot span filesystems, all other files are _copied_ if the
+destination directory for the static site is not on same filesystem as the
+current directory.
 
-Furthermore, in-place editing changes the file for all names. Avoid editing the
+Note that in-place editing changes the file for all names. Avoid editing the
 hard-linked files (anything that's not a HTML file) in the destination
 directory, just to be on the safe side. Usually you should be fine, as an editor
 moves the file that's being edited to a backup file and creates a new file. But
@@ -44,6 +44,29 @@ then again, who knows. A SQLite file, for example, would change in-place, and
 therefore making changes to it in the destination directory would change the
 original, too.
 
+# OPTIONS
+
+*-jobs* _n_
+	By default, two jobs are used to process the files. If your machine has
+	more cores, you can increase the number of jobs.
+
+*-glob* _pattern_
+	By default, all files are used for the static export. You can limit the
+	files used by providing a shell file name pattern. A "\*" matches any
+	number of characters; a "?" matches exactly one character; "[a-z]"
+	matches a character listed, including ranges; "[^a-z]" matches a
+	character not listed, including ranges; "\\" a backslash escapes the
+	following character. You must use quotes around the pattern if you are
+	using a shell as the shell would otherwise expand the pattern, resulting
+	in the error "Exactly one target directory is required".
+	
+
+*-shrink*
+	By default, images are linked or copied. With this option, JPEG, PNG and
+	WebP files are scaled down if more than 800 pixels wide and the quality
+	is set to 30% for JPEG and WebP files. This is _bad quality_ but the
+	result is that these image files are very small.
+
 # EXAMPLES
 
 Generate a static copy of the site, but only loading language detection for
@@ -80,7 +103,11 @@ speed language determination up.
 
 # SEE ALSO
 
-_oddmu_(1), _oddmu-templates_(5)
+See _oddmu_(1) and _oddmu-templates_(5) for general information.
+
+See _oddmu-html_(1) for a subcommand that converts individual pages file to HTML
+and see _oddmu-feed_(1) for a subcommand that generates feeds for individual
+files.
 
 # AUTHORS
 

man/oddmu-templates.5

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-TEMPLATES" "5" "2024-08-30" "File Formats Manual"
+.TH "ODDMU-TEMPLATES" "5" "2026-01-03" "File Formats Manual"
 .PP
 .SH NAME
 .PP
@@ -31,12 +31,12 @@ placeholders.\&
 .IP \(bu 4
 \fIfeed.\&html\fR uses a \fIfeed\fR
 .IP \(bu 4
-\fIlist.\&html\fR uses a \fIlist\fR
-.IP \(bu 4
 \fIpreview.\&html\fR uses a \fIpage\fR
 .IP \(bu 4
 \fIsearch.\&html\fR uses a \fIsearch\fR
 .IP \(bu 4
+\fIsitemap.\&html\fR uses a \fIsitemap\fR
+.IP \(bu 4
 \fIstatic.\&html\fR uses a \fIpage\fR
 .IP \(bu 4
 \fIupload.\&html\fR uses an \fIupload\fR
@@ -44,6 +44,29 @@ placeholders.\&
 \fIview.\&html\fR uses a \fIpage\fR
 .PD
 .PP
+The following property lists always indicate whether the property is
+percent-encoded or not.\& In theory, the html/template package would handle this.\&
+The problem is that the package gives special treatment to the semicolon, comma,
+question-mark and hash-sign as these are potential separators in a URL.\&
+.PP
+Consider the following:
+.PP
+.nf
+.RS 4
+<a href="{{\&.Name}}">{{\&.Name}}</a>
+.fi
+.RE
+.PP
+If \fI.\&Name\fR is "#foo", the html/template package treats it as a URL fragment
+inside the attribute instead of a file path that needs to be escaped to
+"%23foo".\& The same problem arises if \fI.\&Name\fR is "foo?\&" as the questionmark is
+not escaped and therefore treated as the separator between URL path and query
+parameters instead of being part of the name.\&
+.PP
+The consequences for template authors is that the properties that are
+percent-encoded must be used in links where as the regular properties must be
+used outside of links.\&
+.PP
 .SS Page
 .PP
 A page has the following properties:
@@ -51,14 +74,14 @@ A page has the following properties:
 \fI{{.\&Title}}\fR is the page title.\& If the page doesn'\&t provide its own title, the
 page name is used.\&
 .PP
-\fI{{.\&Name}}\fR is the page name, escaped for use in URLs.\& More specifically, it is
-percent-escaped except for the slashes.\& The page name doesn'\&t include the \fI.\&md\fR
-extension.\&
+\fI{{.\&Name}}\fR is the page name.\& The page name doesn'\&t include the \fI.\&md\fR extension.\&
 .PP
-\fI{{.\&Dir}}\fR is the page directory, percent-escaped except for the slashes.\&
+\fI{{.\&Path}}\fR is the page name, percent-encoded.\&
+.PP
+\fI{{.\&Dir}}\fR is the page directory, percent-encoded.\&
 .PP
 \fI{{.\&Base}}\fR is the basename of the current file (without the directory and
-without the \fI.\&md\fR extension), escaped for use in URLs.\&
+without the \fI.\&md\fR extension), percent-encoded.\&
 .PP
 \fI{{.\&Language}}\fR is the suspected language of the page.\& This is used to set the
 language on the \fIview.\&html\fR template.\& See "Non-English hyphenation" below.\&
@@ -109,36 +132,51 @@ An item is a page plus a date.\& All the properties of a page can be used (see
 .PP
 \fI{{.\&Date}}\fR is the date of the last update to the page, in RFC 822 format.\&
 .PP
-.SS List
+In order to paginate feeds, the following attributes are also available in the
+feed:
 .PP
-The list contains a directory name and an array of files.\&
+\fI{{.\&From}}\fR is the item number where the feed starts.\& The first page starts at
+0.\& This can be passed to Oddmu via the query parameter \fIfrom\fR.\&
 .PP
-\fI{{.\&Dir}}\fR is the directory name that is being listed.\&
+\fI{{.\&N}}\fR is the number items per page.\& The default is 10.\& This can be passed to
+Oddmu via the query parameter \fIn\fR.\& If this is set to 0, the feed is not
+paginated.\&
 .PP
-\fI{{.\&Files}}\fR is the array of files.\& To refer to them, you need to use a \fI{{range
-Files}}\fR … \fI{{end}}\fR construct.\&
+\fI{{.\&Complete}}\fR is a boolean that is true if the feed is not paginated.\& Such a
+feed cannot have a previous or next page.\&
 .PP
-Each file has the following attributes:
+\fI{{.\&Prev}}\fR is the item number where the previous page of the feed starts.\& On
+the first page, it'\&s value is 0 instead of -10.\& You need to test if \fI{{.\&From}}\fR
+is non-zero (in which case this is not the first page) before using \fI{{.\&Prev}}\fR.\&
 .PP
-\fI{{.\&Name}}\fR is the filename.\& The ".\&md" suffix for Markdown files is part of the
-name (unlike page names).\&
+\fI{{.\&Next}}\fR is the item number where the next feed starts, if there are any
+items left.\& If there are none, it'\&s value is 0.\&
 .PP
-\fI{{.\&Title}}\fR is the page title, if the file in question is a Markdown file.\&
+\fI{{.\&PrevYear}}\fR is the year for the previous yearly archive.\& This is added on
+the index page or on year pages.\& Year pages are pages whose name is just a
+number (presumably a year).\& The property is only set on the first page of the
+feed, if the previous year page exists.\& The previous year is one higher than the
+year currently shown (if on a year page) or the current year (if looking at the
+index), since the feed goes backwards in time as new entries appear at the top.\&
+When looking at the page "2024" the previous page is "2025".\& Strangely enough,
+if the current year is 2026 but a page "2027" already exists, and the feed for
+the index page is generated, then "2027" (in the future) is the previous page.\&
+If the current year is 2026, the feed of the index page points to "2025" as the
+next year, if it exists.\& When the feed for "2025" is generated, however, the
+previous year is not set, assuming that the "2026" page does not yet exist and
+it is strange to consider the index page "the previous year" of "2025" in 2026.\&
+This might change in the future.\& If it isn'\&t set, it'\&s value is 0.\&
 .PP
-\fI{{.\&IsDir}}\fR is a boolean used to indicate that this file is a directory.\&
-.PP
-\fI{{.\&IsUp}}\fR is a boolean used to indicate the entry for the parent directory
-(the first file in the array, unless the directory being listed is the top
-directory).\& The filename of this file is ".\&.\&".\&
-.PP
-\fI{{.\&Date}}\fR is the last modification date of the file.\&
+\fI{{.\&NextYear}}\fR is the year for the next yearly archive.\& See above for an
+explanation.\& The next year is one lower than the year currently shown (if on a
+year page) or the current year (if looking at the index).\& If it isn'\&t set, it'\&s
+value is 0.\&
 .PP
 .SS Search
 .PP
 \fI{{.\&Query}}\fR is the query string.\&
 .PP
-\fI{{.\&Dir}}\fR is the directory in which the search starts, percent-escaped except
-for the slashes.\&
+\fI{{.\&Dir}}\fR is the directory in which the search starts, percent-encoded.\&
 .PP
 \fI{{.\&Previous}}\fR, \fI{{.\&Page}}\fR and \fI{{.\&Next}}\fR are the previous, current and next
 page number in the results since doing arithmetics in templates is hard.\& The
@@ -172,26 +210,31 @@ are only listed if a search term matches.\&
 \fI{{.\&Html}}\fR the image alt-text with a bold tag used to highlight the first
 search term that matched.\&
 .PP
+.SS Sitemap
+.PP
+The sitemap contains a list of URLs, each with its location:
+.PP
+\fI{{.\&URL}}\fR is the list of URLs.\&
+.PP
+Each URL has the following attributes:
+.PP
+\fI{{.\&Loc}}\fR with the actual page URL.\&
+.PP
 .SS Upload
 .PP
 \fI{{.\&Dir}}\fR is the directory where the uploaded file ends up, based on the URL
-path, percent-escaped except for the slashes.\&
+path, percent-encoded.\&
 .PP
-\fI{{.\&Name}}\fR is the \fIfilename\fR query parameter.\&
+\fI{{.\&FileName}}\fR is the \fIfilename\fR query parameter used to suggested a filename.\&
 .PP
-\fI{{.\&Last}}\fR is the filename of the last file uploaded.\&
+\fI{{.\&FilePath}}\fR is the filename, percent-encoded.\&
 .PP
-\fI{{.\&Actual}}\fR is an array of filenames of all the files uploaded.\& Use {{range
-Actual}} … {{.\&}} … {{end}} to loop over all the filenames.\&
+\fI{{.\&Name}}\fR is the \fIpagename\fR query parameter used to indicate where to append
+links to the files.\&
 .PP
-\fI{{.\&Base}}\fR is the basename of the first file uploaded (without the directory,
-extension and numeric part at the end), escaped for use in URLs.\&
+\fI{{.\&Path}}\fR is the page name, percent-encoded.\&
 .PP
-\fI{{.\&Title}}\fR is the title of the basename, if it exists.\&
-.PP
-\fI{{.\&Image}}\fR is a boolean to indicate whether the last file uploaded has a file
-name indicating an image or not (such as ending in \fI.\&jpg\fR).\& If so, a thumbnail
-can be shown by the template, for example.\&
+\fI{{.\&Title}}\fR is the title of the page, if it exists.\&
 .PP
 \fI{{.\&MaxWidth}}\fR is the \fImaxwidth\fR query parameter, i.\&e.\& the value used for the
 previous image uploaded.\&
@@ -201,6 +244,22 @@ previous image uploaded.\&
 .PP
 \fI{{.\&Today}}\fR is the current date, in ISO format.\&
 .PP
+\fI{{.\&Uploads}}\fR an array of files already uploaded, based on the \fIuploads\fR query
+parameter.\& To refer to them, you need to use a \fI{{range .\&Uploads}}\fR … \fI{{end}}\fR
+construct.\& This is required because the \fIdrop\fR action redirects back to the
+\fIupload\fR action, so after saving one or more files, you can upload even more
+files.\&
+.PP
+Each upload has the following attributes:
+.PP
+\fI{{.\&Name}}\fR is the filename.\&
+.PP
+\fI{{.\&Path}}\fR is the file name, percent-encoded.\&
+.PP
+\fI{{.\&Image}}\fR is a boolean to indicate whether the upload is an image or not
+(such as ending in \fI.\&jpg\fR).\& If so, a thumbnail can be shown by the template, for
+example.\&
+.PP
 .SS Non-English hyphenation
 .PP
 Automatic hyphenation by the browser requires two things: The style sheet must
@@ -214,16 +273,16 @@ use a small number of languages – or just a single language!\& – you can set
 environment variable ODDMU_LANGUAGES to a comma-separated list of ISO 639-1
 codes, e.\&g.\& "en" or "en,de,fr,pt".\&
 .PP
-"view.\&html" is used the template to render a single page and so the language
-detected is added to the "html" element.\&
+"view.\&html" is used to render a single page and so the language detected is
+added to the "html" element.\&
 .PP
 "search.\&html" is the template used to render search results and so "en" is used
 for the "html" element and the language detected for every page in the search
 result is added to the "article" element for each snippet.\&
 .PP
-"edit.\&html" and "add.\&html" are the templates used to edit a page and at that
-point, the language isn'\&t known, so "en" is used for the "html" element and no
-language is used for the "textarea" element.\&
+"edit.\&html" and "add.\&html" are the templates used to edit a page.\& If the page
+already exists, its language is used for the "textarea" element.\& If the page is
+new, no language is used for the "textarea" element.\&
 .PP
 .SH EXAMPLES
 .PP

man/oddmu-templates.5.txt

@@ -18,13 +18,34 @@ placeholders.
 - _diff.html_ uses a _page_
 - _edit.html_ uses a _page_
 - _feed.html_ uses a _feed_
-- _list.html_ uses a _list_
 - _preview.html_ uses a _page_
 - _search.html_ uses a _search_
+- _sitemap.html_ uses a _sitemap_
 - _static.html_ uses a _page_
 - _upload.html_ uses an _upload_
 - _view.html_ uses a _page_
 
+The following property lists always indicate whether the property is
+percent-encoded or not. In theory, the html/template package would handle this.
+The problem is that the package gives special treatment to the semicolon, comma,
+question-mark and hash-sign as these are potential separators in a URL.
+
+Consider the following:
+
+```
+<a href="{{.Name}}">{{.Name}}</a>
+```
+
+If _.Name_ is "#foo", the html/template package treats it as a URL fragment
+inside the attribute instead of a file path that needs to be escaped to
+"%23foo". The same problem arises if _.Name_ is "foo?" as the questionmark is
+not escaped and therefore treated as the separator between URL path and query
+parameters instead of being part of the name.
+
+The consequences for template authors is that the properties that are
+percent-encoded must be used in links where as the regular properties must be
+used outside of links.
+
 ## Page
 
 A page has the following properties:
@@ -32,14 +53,14 @@ A page has the following properties:
 _{{.Title}}_ is the page title. If the page doesn't provide its own title, the
 page name is used.
 
-_{{.Name}}_ is the page name, escaped for use in URLs. More specifically, it is
-percent-escaped except for the slashes. The page name doesn't include the _.md_
-extension.
+_{{.Name}}_ is the page name. The page name doesn't include the _.md_ extension.
 
-_{{.Dir}}_ is the page directory, percent-escaped except for the slashes.
+_{{.Path}}_ is the page name, percent-encoded.
+
+_{{.Dir}}_ is the page directory, percent-encoded.
 
 _{{.Base}}_ is the basename of the current file (without the directory and
-without the _.md_ extension), escaped for use in URLs.
+without the _.md_ extension), percent-encoded.
 
 _{{.Language}}_ is the suspected language of the page. This is used to set the
 language on the _view.html_ template. See "Non-English hyphenation" below.
@@ -85,36 +106,51 @@ An item is a page plus a date. All the properties of a page can be used (see
 
 _{{.Date}}_ is the date of the last update to the page, in RFC 822 format.
 
-## List
+In order to paginate feeds, the following attributes are also available in the
+feed:
 
-The list contains a directory name and an array of files.
+_{{.From}}_ is the item number where the feed starts. The first page starts at
+0. This can be passed to Oddmu via the query parameter _from_.
 
-_{{.Dir}}_ is the directory name that is being listed.
+_{{.N}}_ is the number items per page. The default is 10. This can be passed to
+Oddmu via the query parameter _n_. If this is set to 0, the feed is not
+paginated.
 
-_{{.Files}}_ is the array of files. To refer to them, you need to use a _{{range
-.Files}}_ … _{{end}}_ construct.
+_{{.Complete}}_ is a boolean that is true if the feed is not paginated. Such a
+feed cannot have a previous or next page.
 
-Each file has the following attributes:
+_{{.Prev}}_ is the item number where the previous page of the feed starts. On
+the first page, it's value is 0 instead of -10. You need to test if _{{.From}}_
+is non-zero (in which case this is not the first page) before using _{{.Prev}}_.
 
-_{{.Name}}_ is the filename. The ".md" suffix for Markdown files is part of the
-name (unlike page names).
+_{{.Next}}_ is the item number where the next feed starts, if there are any
+items left. If there are none, it's value is 0.
 
-_{{.Title}}_ is the page title, if the file in question is a Markdown file.
+_{{.PrevYear}}_ is the year for the previous yearly archive. This is added on
+the index page or on year pages. Year pages are pages whose name is just a
+number (presumably a year). The property is only set on the first page of the
+feed, if the previous year page exists. The previous year is one higher than the
+year currently shown (if on a year page) or the current year (if looking at the
+index), since the feed goes backwards in time as new entries appear at the top.
+When looking at the page "2024" the previous page is "2025". Strangely enough,
+if the current year is 2026 but a page "2027" already exists, and the feed for
+the index page is generated, then "2027" (in the future) is the previous page.
+If the current year is 2026, the feed of the index page points to "2025" as the
+next year, if it exists. When the feed for "2025" is generated, however, the
+previous year is not set, assuming that the "2026" page does not yet exist and
+it is strange to consider the index page "the previous year" of "2025" in 2026.
+This might change in the future. If it isn't set, it's value is 0.
 
-_{{.IsDir}}_ is a boolean used to indicate that this file is a directory.
-
-_{{.IsUp}}_ is a boolean used to indicate the entry for the parent directory
-(the first file in the array, unless the directory being listed is the top
-directory). The filename of this file is "..".
-
-_{{.Date}}_ is the last modification date of the file.
+_{{.NextYear}}_ is the year for the next yearly archive. See above for an
+explanation. The next year is one lower than the year currently shown (if on a
+year page) or the current year (if looking at the index). If it isn't set, it's
+value is 0.
 
 ## Search
 
 _{{.Query}}_ is the query string.
 
-_{{.Dir}}_ is the directory in which the search starts, percent-escaped except
-for the slashes.
+_{{.Dir}}_ is the directory in which the search starts, percent-encoded.
 
 _{{.Previous}}_, _{{.Page}}_ and _{{.Next}}_ are the previous, current and next
 page number in the results since doing arithmetics in templates is hard. The
@@ -148,26 +184,31 @@ _{{.Name}}_ is the file name for use in URLs.
 _{{.Html}}_ the image alt-text with a bold tag used to highlight the first
 search term that matched.
 
+## Sitemap
+
+The sitemap contains a list of URLs, each with its location:
+
+_{{.URL}}_ is the list of URLs.
+
+Each URL has the following attributes:
+
+_{{.Loc}}_ with the actual page URL.
+
 ## Upload
 
 _{{.Dir}}_ is the directory where the uploaded file ends up, based on the URL
-path, percent-escaped except for the slashes.
+path, percent-encoded.
 
-_{{.Name}}_ is the _filename_ query parameter.
+_{{.FileName}}_ is the _filename_ query parameter used to suggested a filename.
 
-_{{.Last}}_ is the filename of the last file uploaded.
+_{{.FilePath}}_ is the filename, percent-encoded.
 
-_{{.Actual}}_ is an array of filenames of all the files uploaded. Use {{range
-.Actual}} … {{.}} … {{end}} to loop over all the filenames.
+_{{.Name}}_ is the _pagename_ query parameter used to indicate where to append
+links to the files.
 
-_{{.Base}}_ is the basename of the first file uploaded (without the directory,
-extension and numeric part at the end), escaped for use in URLs.
+_{{.Path}}_ is the page name, percent-encoded.
 
-_{{.Title}}_ is the title of the basename, if it exists.
-
-_{{.Image}}_ is a boolean to indicate whether the last file uploaded has a file
-name indicating an image or not (such as ending in _.jpg_). If so, a thumbnail
-can be shown by the template, for example.
+_{{.Title}}_ is the title of the page, if it exists.
 
 _{{.MaxWidth}}_ is the _maxwidth_ query parameter, i.e. the value used for the
 previous image uploaded.
@@ -177,6 +218,22 @@ previous image uploaded.
 
 _{{.Today}}_ is the current date, in ISO format.
 
+_{{.Uploads}}_ an array of files already uploaded, based on the _uploads_ query
+parameter. To refer to them, you need to use a _{{range .Uploads}}_ … _{{end}}_
+construct. This is required because the _drop_ action redirects back to the
+_upload_ action, so after saving one or more files, you can upload even more
+files.
+
+Each upload has the following attributes:
+
+_{{.Name}}_ is the filename.
+
+_{{.Path}}_ is the file name, percent-encoded.
+
+_{{.Image}}_ is a boolean to indicate whether the upload is an image or not
+(such as ending in _.jpg_). If so, a thumbnail can be shown by the template, for
+example.
+
 ## Non-English hyphenation
 
 Automatic hyphenation by the browser requires two things: The style sheet must
@@ -190,16 +247,16 @@ use a small number of languages – or just a single language! – you can set t
 environment variable ODDMU_LANGUAGES to a comma-separated list of ISO 639-1
 codes, e.g. "en" or "en,de,fr,pt".
 
-"view.html" is used the template to render a single page and so the language
-detected is added to the "html" element.
+"view.html" is used to render a single page and so the language detected is
+added to the "html" element.
 
 "search.html" is the template used to render search results and so "en" is used
 for the "html" element and the language detected for every page in the search
 result is added to the "article" element for each snippet.
 
-"edit.html" and "add.html" are the templates used to edit a page and at that
-point, the language isn't known, so "en" is used for the "html" element and no
-language is used for the "textarea" element.
+"edit.html" and "add.html" are the templates used to edit a page. If the page
+already exists, its language is used for the "textarea" element. If the page is
+new, no language is used for the "textarea" element.
 
 # EXAMPLES
 

man/oddmu-toc.1

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-TOC" "1" "2024-08-15"
+.TH "ODDMU-TOC" "1" "2025-04-05"
 .PP
 .SH NAME
 .PP
@@ -13,13 +13,12 @@ oddmu-toc - print the table of contents (toc) for pages
 .PP
 .SH SYNOPSIS
 .PP
-\fBoddmu toc\fR  \fIpage names.\&.\&.\&\fR
+\fBoddmu toc\fR \fIpage names.\&.\&.\&\fR
 .PP
 .SH DESCRIPTION
 .PP
-The "toc" subcommand prints the table of contents for one or more page
-names.\& Use "-" as the page name if you want to read Markdown from
-\fBstdin\fR.\&
+The "toc" subcommand prints the table of contents for one or more Markdown
+files.\& Use "-" as the page name if you want to read Markdown from \fBstdin\fR.\&
 .PP
 This can be useful for very long pages that need a table of contents
 at the beginning.\&

man/oddmu-toc.1.txt

@@ -6,13 +6,12 @@ oddmu-toc - print the table of contents (toc) for pages
 
 # SYNOPSIS
 
-*oddmu toc*  _page names..._
+*oddmu toc* _page names..._
 
 # DESCRIPTION
 
-The "toc" subcommand prints the table of contents for one or more page
-names. Use "-" as the page name if you want to read Markdown from
-*stdin*.
+The "toc" subcommand prints the table of contents for one or more Markdown
+files. Use "-" as the page name if you want to read Markdown from *stdin*.
 
 This can be useful for very long pages that need a table of contents
 at the beginning.

man/oddmu-webdav.5

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU-WEBDAV" "5" "2024-09-25"
+.TH "ODDMU-WEBDAV" "5" "2025-07-16"
 .PP
 .SH NAME
 .PP
@@ -14,27 +14,34 @@ oddmu-webdav - how to setup Web-DAV using Apache for Oddmu
 .SH DESCRIPTION
 .PP
 With the Apache Web-DAV module enabled, users can mount the wiki as a remote
-file system and edit files using their favourite text editor.\& If you want to
-offer users direct file access to the wiki, this can be accomplished via ssh,
-sftp or Web-DAV.\&
-.PP
-The benefit of using the Apache Web-DAV module is that access has to be
-configured only once.\&
+file system and manage the files using some other tool.\& Using the Apache Web-DAV
+module means that the same user accounts can be used as for the regular wiki.\&
 .PP
 .SH CONFIGURATION
 .PP
-In the following example, "data" is not an action provided by Oddmu but an
-actual directory for Oddmu files.\& In the example below,
-"/home/alex/campaignwiki.\&org/data" is both the document root for static files
-and the data directory for Oddmu.\& This is the directory where Oddmu needs to
-run.\& When users request the "/data" path, authentication is required but the
-request is not proxied to Oddmu since the "ProxyPassMatch" directive doesn'\&t
-handle "/data".\& Instead, Apache gets to handle it.\& Since "data" is part of all
-the "LocationMatch" directives, credentials are required to save (PUT) files.\&
+Consider the "campaignwiki.\&org" site in the example below.\& This site offers
+users their own wikis.\& Thus:
 .PP
-"Dav On" enables Web-DAV for the "knochentanz" wiki.\& It is enabled for all the
-actions, but since only "/data" is handled by Apache, this has no effect for all
-the other actions, allowing us to specify the required users only once.\&
+"https://campaignwiki.\&org/" is a regular website with static files.\&
+.PP
+"https://campaignwiki.\&org/view/index" is one of the requests that gets passed to
+a Unix domain socket.\& See "Socket Activation" in \fIoddmu\fR(1).\&
+.PP
+Some of these actions are protected by basic authentication.\& A valid user is
+required to make changes to the site.\& Valid users are "admin" and "alex".\&
+.PP
+"data" is the Oddmu working directory.\& WebDAV is turned on for this directory.\& A
+shortcut has been taken, here: The "data" subdirectory requires authentication
+and offers WebDAV access.\& The other paths also require authentication and map to
+Oddmu actions.\& The fact that WebDAV access is "enabled" for the Oddmu actions
+has no effect.\& The only drawback is that "https://campaignwiki.\&org/data/" now
+requires authentication even if only used for reading.\&
+.PP
+"https://campaignwiki.\&org/view/knochentanz/index" is a separate site called
+"knochentanz".\& The only valid user is "knochentanz".\&
+.PP
+Notice how the \fIarchive\fR action is not available at the top level, only for
+subdirectories.\&
 .PP
 .nf
 .RS 4
@@ -48,28 +55,32 @@ MDomain campaignwiki\&.org
 <VirtualHost *:443>
     ServerAdmin alex@campaignwiki\&.org
     ServerName campaignwiki\&.org
+    # Static HTML, CSS, JavaScript files and so on are saved here\&.
     DocumentRoot /home/alex/campaignwiki\&.org
     <Directory /home/alex/campaignwiki\&.org>
-        Options Includes Indexes MultiViews SymLinksIfOwnerMatch
+        Options Indexes MultiViews SymLinksIfOwnerMatch
         AllowOverride All
-	Require all granted
+        Require all granted
     </Directory>
     SSLEngine on
+    # Any request to the following paths is passed on to the Unix domain socket\&.
     ProxyPassMatch 
-      "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|search|archive/\&.+)/(\&.*))$" 
+      "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive/\&.+)/(\&.*))$" 
       "unix:/home/oddmu/campaignwiki\&.sock|http://localhost/$1"
     # /archive only for subdirectories
     Redirect "/archive/data\&.zip" "/view/archive"
-    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|list|delete)/">
+    # Making changes to the wiki requires authentication\&.
+    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop)/">
       AuthType Basic
       AuthName "Password Required"
       AuthUserFile /home/oddmu/\&.htpasswd
       Require user admin alex
-    </LocationMatch>
-    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|list|delete|archive)/knochentanz">
-      Require user admin alex knochentanz
       Dav On
     </LocationMatch>
+    # Making changes to a subdirectory requires different accounts\&.
+    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|archive)/knochentanz">
+      Require user knochentanz
+    </LocationMatch>
 </VirtualHost>
 .fi
 .RE
@@ -101,9 +112,13 @@ sudo chmod g+w /home/alex/campaignwiki\&.org/data/knochentanz
 Web-DAV clients are often implemented such that they only work with servers that
 exactly match their assumptions.\& If you'\&re trying to use \fIgvfs\fR(7), the Windows
 File Explorer or the macOS Finder to edit Oddmu pages using Web-DAV, you'\&re on
-your own.\&
+your own.\& Sometimes it works.\& I'\&ve used Nemo 5.\&6.\&4 to connect to the server and
+edited files using gedit 44.\&2.\& But I'\&ve used other file managers and other
+editors with WebDAV support and they didn'\&t work very well.\&
 .PP
-This section has examples sessions using tools that work.\&
+On Windows, try third party tools like WinSCP.\&
+.PP
+This section has examples sessions using command-line tools that work.\&
 .PP
 .SS cadaver
 .PP
@@ -183,6 +198,9 @@ alex@melanobombus ~> echo test >> knochentanz/index\&.md
 "Apache Module mod_dav".\&
 https://httpd.\&apache.\&org/docs/current/mod/mod_dav.\&html
 .PP
+"WinSCP"
+https://winscp.\&net/
+.PP
 .SH AUTHORS
 .PP
 Maintained by Alex Schroeder <alex@gnu.\&org>.\&

man/oddmu-webdav.5.txt

@@ -7,27 +7,34 @@ oddmu-webdav - how to setup Web-DAV using Apache for Oddmu
 # DESCRIPTION
 
 With the Apache Web-DAV module enabled, users can mount the wiki as a remote
-file system and edit files using their favourite text editor. If you want to
-offer users direct file access to the wiki, this can be accomplished via ssh,
-sftp or Web-DAV.
-
-The benefit of using the Apache Web-DAV module is that access has to be
-configured only once.
+file system and manage the files using some other tool. Using the Apache Web-DAV
+module means that the same user accounts can be used as for the regular wiki.
 
 # CONFIGURATION
 
-In the following example, "data" is not an action provided by Oddmu but an
-actual directory for Oddmu files. In the example below,
-"/home/alex/campaignwiki.org/data" is both the document root for static files
-and the data directory for Oddmu. This is the directory where Oddmu needs to
-run. When users request the "/data" path, authentication is required but the
-request is not proxied to Oddmu since the "ProxyPassMatch" directive doesn't
-handle "/data". Instead, Apache gets to handle it. Since "data" is part of all
-the "LocationMatch" directives, credentials are required to save (PUT) files.
+Consider the "campaignwiki.org" site in the example below. This site offers
+users their own wikis. Thus:
 
-"Dav On" enables Web-DAV for the "knochentanz" wiki. It is enabled for all the
-actions, but since only "/data" is handled by Apache, this has no effect for all
-the other actions, allowing us to specify the required users only once.
+"https://campaignwiki.org/" is a regular website with static files.
+
+"https://campaignwiki.org/view/index" is one of the requests that gets passed to
+a Unix domain socket. See "Socket Activation" in _oddmu_(1).
+
+Some of these actions are protected by basic authentication. A valid user is
+required to make changes to the site. Valid users are "admin" and "alex".
+
+"data" is the Oddmu working directory. WebDAV is turned on for this directory. A
+shortcut has been taken, here: The "data" subdirectory requires authentication
+and offers WebDAV access. The other paths also require authentication and map to
+Oddmu actions. The fact that WebDAV access is "enabled" for the Oddmu actions
+has no effect. The only drawback is that "https://campaignwiki.org/data/" now
+requires authentication even if only used for reading.
+
+"https://campaignwiki.org/view/knochentanz/index" is a separate site called
+"knochentanz". The only valid user is "knochentanz".
+
+Notice how the _archive_ action is not available at the top level, only for
+subdirectories.
 
 ```
 MDomain campaignwiki.org
@@ -40,28 +47,32 @@ MDomain campaignwiki.org
 <VirtualHost *:443>
     ServerAdmin alex@campaignwiki.org
     ServerName campaignwiki.org
+    # Static HTML, CSS, JavaScript files and so on are saved here.
     DocumentRoot /home/alex/campaignwiki.org
     <Directory /home/alex/campaignwiki.org>
-        Options Includes Indexes MultiViews SymLinksIfOwnerMatch
+        Options Indexes MultiViews SymLinksIfOwnerMatch
         AllowOverride All
-	Require all granted
+        Require all granted
     </Directory>
     SSLEngine on
+    # Any request to the following paths is passed on to the Unix domain socket.
     ProxyPassMatch \
-      "^/((view|preview|diff|edit|save|add|append|upload|drop|list|delete|search|archive/.+)/(.*))$" \
+      "^/((view|preview|diff|edit|save|add|append|upload|drop|search|archive/.+)/(.*))$" \
       "unix:/home/oddmu/campaignwiki.sock|http://localhost/$1"
     # /archive only for subdirectories
     Redirect "/archive/data.zip" "/view/archive"
-    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|list|delete)/">
+    # Making changes to the wiki requires authentication.
+    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop)/">
       AuthType Basic
       AuthName "Password Required"
       AuthUserFile /home/oddmu/.htpasswd
       Require user admin alex
-    </LocationMatch>
-    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|list|delete|archive)/knochentanz">
-      Require user admin alex knochentanz
       Dav On
     </LocationMatch>
+    # Making changes to a subdirectory requires different accounts.
+    <LocationMatch "^/(data|edit|preview|save|add|append|upload|drop|archive)/knochentanz">
+      Require user knochentanz
+    </LocationMatch>
 </VirtualHost>
 ```
 
@@ -88,9 +99,13 @@ sudo chmod g+w /home/alex/campaignwiki.org/data/knochentanz
 Web-DAV clients are often implemented such that they only work with servers that
 exactly match their assumptions. If you're trying to use _gvfs_(7), the Windows
 File Explorer or the macOS Finder to edit Oddmu pages using Web-DAV, you're on
-your own.
+your own. Sometimes it works. I've used Nemo 5.6.4 to connect to the server and
+edited files using gedit 44.2. But I've used other file managers and other
+editors with WebDAV support and they didn't work very well.
 
-This section has examples sessions using tools that work.
+On Windows, try third party tools like WinSCP.
+
+This section has examples sessions using command-line tools that work.
 
 ## cadaver
 
@@ -164,6 +179,9 @@ _oddmu_(1), _oddmu-apache_(5)
 "Apache Module mod_dav".
 https://httpd.apache.org/docs/current/mod/mod_dav.html
 
+"WinSCP"
+https://winscp.net/
+
 # AUTHORS
 
 Maintained by Alex Schroeder <alex@gnu.org>.

man/oddmu.1

@@ -5,13 +5,13 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU" "1" "2024-09-25"
+.TH "ODDMU" "1" "2026-02-11"
 .PP
 .SH NAME
 .PP
 oddmu - a wiki server
 .PP
-Oddmu is sometimes written Oddµ because µ is the letter mu.\&
+Oddmu is sometimes written Oddμ because μ is the letter mu.\&
 .PP
 .SH SYNOPSIS
 .PP
@@ -32,10 +32,11 @@ create, most likely.\&
 .PP
 See \fIoddmu\fR(5) for details about the page formatting.\&
 .PP
-If you request a page that doesn'\&t exist, Oddmu tries to find a matching
-Markdown file by appending the extension ".\&md" to the page name.\& In the example
-above, the page name requested is "index" and the file name Oddmu tries to read
-is "index.\&md".\& If no such file exists, Oddmu offers you to create the page.\&
+If you request a file that exists, like "index.\&md", Oddmu serves it as-is.\& If
+you request a file that doesn'\&t exist, like "index", Oddmu checks if a matching
+Markdown file exists by appending the extension ".\&md".\& If such a file is found,
+it is turned into HTML and shown.\& If no such file exists, Oddmu offers you to
+create the page.\&
 .PP
 If your files don'\&t provide their own title ("# title"), the file name (without
 ".\&md") is used for the page title.\&
@@ -77,14 +78,10 @@ directory:
 .IP \(bu 4
 \fI/drop/dir/name\fR saves an upload
 .IP \(bu 4
-\fI/list/dir/\fR lists the files in a directory
-.IP \(bu 4
-\fI/delete/dir/name\fR deletes a file or directory
-.IP \(bu 4
-\fI/rename/dir/name?\&name=new\fR renames a file or directory
-.IP \(bu 4
 \fI/search/dir/?\&q=term\fR to search for a term
 .IP \(bu 4
+\fI/sitemap.\&xml\fR to list the links to all the pages
+.IP \(bu 4
 \fI/archive/dir/name.\&zip\fR to download a zip file of a directory
 .PD
 .PP
@@ -102,9 +99,9 @@ curl --form body="Did you bring a towel?"
 When calling the \fIdrop\fR action, the query parameters used are \fIname\fR for the
 target filename and \fIfile\fR for the file to upload.\& If the query parameter
 \fImaxwidth\fR is set, an attempt is made to decode and resize the image.\& JPG, PNG,
-WEBP and HEIC files can be decoded.\& Only JPG and PNG files can be encoded,
-however.\& If the target name ends in \fI.\&jpg\fR, the \fIquality\fR query parameter is
-also taken into account.\& To upload some thumbnails:
+WEBP and HEIC files can be decoded.\& Only JPG, PNG and WEBP files can be encoded,
+however.\& If the target name ends in \fI.\&jpg\fR or \fI.\&png\fR, the \fIquality\fR query
+parameter is also taken into account.\& To upload some thumbnails:
 .PP
 .nf
 .RS 4
@@ -125,12 +122,13 @@ curl \&'http://localhost:8080/search/?q=towel\&'
 .RE
 .PP
 The page name to act upon is optionally taken from the query parameter \fIid\fR.\& In
-this case, the directory must also be part of the query parameter and not of the
-URL path.\&
+this case, the directory must still be part of the path and may not be part of
+the \fIid\fR.\& This is enforced so that the path can be used by a webserver for
+access control.\&
 .PP
 .nf
 .RS 4
-curl \&'http://localhost:8080/view/?id=man/oddmu\&.1\&.txt\&'
+curl \&'http://localhost:8080/view/man/?id=oddmu\&.1\&.txt\&'
 .fi
 .RE
 .PP
@@ -146,8 +144,9 @@ curl --remote-name \&'http://localhost:8080/archive/man/man\&.zip
 .PP
 .SH CONFIGURATION
 .PP
-The template files are the HTML files in the working directory.\& Please change
-these templates!\&
+The template files are the HTML files in the working directory.\& If they are
+missing, the default files are written to disk as soon as they are required.\&
+Please change these templates!\&
 .PP
 The first change you should make is to replace the name and email address in the
 footer of \fIview.\&html\fR.\& Look for "Your Name" and "example.\&org".\&
@@ -288,9 +287,10 @@ it, it can'\&t be a page name.\& Filenames can contain slashes and Oddmu creates
 subdirectories as necessary.\&
 .PP
 Files may not end with a tilde ('\&~'\&) – these are backup files.\& When saving pages
-and file uploads, the old file renamed to the backup file unless the backup file
-is less than an hour old, thus collapsing all edits made in an hour into a
-single diff when comparing backup and current version.\&
+and file uploads, the old file is renamed to the backup file unless the backup
+file is less than an hour old, thus collapsing all edits made in an hour into a
+single diff when comparing backup and current version.\& The backup also gets an
+updated timestamp so that subsequent edits don'\&t immediately overwrite it.\&
 .PP
 The \fBindex\fR page is the default page.\& People visiting the "root" of the site are
 redirected to "/view/index".\&
@@ -305,55 +305,62 @@ current date of the machine Oddmu is running on is used.\& If a link already
 exists on the changes page, it is moved up to the current date.\& If that leaves
 an old date without any links, that date heading is removed.\&
 .PP
-If you want to link to the changes page, you need to do this yourself.\& Add a
-link from the index, for example.\& The "view.\&html" template currently doesn'\&t do
-it.\& See \fIoddmu-templates\fR(5) if you want to add the link to the template.\&
-.PP
 A page whose name starts with an ISO date (YYYY-MM-DD, e.\&g.\& "2023-10-28") is
 called a \fBblog\fR page.\& When creating or editing blog pages, links to it are added
-from other pages.\&
+from other pages as follows:
 .PP
+.PD 0
+.IP \(bu 4
 If the blog page name starts with the current year, a link is created from the
-index page back to the blog page being created or edited.\& Again, you can prevent
-this from happening by deselecting the checkbox "Add link to the list of
-changes.\&" The index page can be edited like every other page, so it'\&s easy to
-undo mistakes.\&
+index page back to the blog page being created or edited.\& Again, you can
+prevent this from happening by deselecting the checkbox "Add link to the list
+of changes.\&" The index page can be edited like every other page, so it'\&s easy
+to undo mistakes.\&
+.PD
 .PP
+.PD 0
+.IP \(bu 4
 For every \fBhashtag\fR used, another link might be created.\& If a page named like
-the hashtag exists, a backlink is added to it, linking to the new or edited blog
-page.\&
+the hashtag exists, a backlink is added to it, linking to the new or edited
+blog page.\&
+.PD
 .PP
+.PD 0
+.IP \(bu 4
 If a link to the new or edited blog page already exists but it'\&s title is no
 longer correct, it is updated.\&
+.PD
 .PP
 New links added for blog pages are added at the top of the first unnumbered list
 using the asterisk ('\&*'\&).\& If no such list exists, a new one is started at the
 bottom of the page.\& This allows you to have a different unnumbered list further
 up on the page, as long as it uses the minus for items ('\&-'\&).\&
 .PP
-Changes made locally do not create any links on the changes page, the index page
-or on any hashtag pages.\& See \fIoddmu-notify\fR(1) for a way to add the necessary
-links to the changes page and possibly to the index and hashtag pages.\&
+Changes made locally to the source files (using an editor) do not create any
+links on the changes page, the index page or on any hashtag pages.\& See
+\fIoddmu-notify\fR(1) for a way to add the necessary links to the changes page and
+possibly to the index and hashtag pages.\&
 .PP
 A hashtag consists of a number sign ('\&#'\&) followed by Unicode letters, numbers
 or the underscore ('\&_'\&).\& Thus, a hashtag ends with punctuation or whitespace.\&
 .PP
 The page names, titles and hashtags are loaded into memory when the server
-starts.\& If you have a lot of pages, this takes a lot of memory.\&
+starts.\& If you have a lot of pages, this takes a lot of memory.\& Oddmu watches
+the working directory and any subdirectories for changes made to page files and
+updates this cache when necessary.\&
 .PP
-Oddmu watches the working directory and any subdirectories for changes made
-directly.\& Thus, in theory, it'\&s not necessary to restart it after making such
-changes.\&
-.PP
-You cannot edit uploaded files.\& If you upload a file called "hello.\&txt" and
-attempt to edit it by using "/edit/hello.\&txt" you create a page with the name
-"hello.\&txt.\&md" instead.\&
+Uploaded files cannot be edited unless they end with ".\&md".\& If you upload a file
+called "hello.\&txt" and attempt to edit it by using "/edit/hello.\&txt" you create
+a page with the name "hello.\&txt.\&md" instead.\&
 .PP
 In order to delete uploaded files via the web, create an empty file and upload
 it.\& In order to delete a wiki page, save an empty page.\&
 .PP
 Note that some HTML file names are special: they act as templates.\& See
-\fIoddmu-templates\fR(5) for their names and their use.\&
+\fIoddmu-templates\fR(5) for their names and their use.\& Oddmu watches the working
+directory and any subdirectories for changes made to template files and reloads
+them.\& There is no need to restart the server after making changes to the
+templates.\&
 .PP
 .SH SEE ALSO
 .PP
@@ -389,10 +396,12 @@ Oddmu running as a webserver:
 .PP
 .PD 0
 .IP \(bu 4
-\fIoddmu-hashtags\fR(1), on how to count the hashtags used
+\fIoddmu-hashtags\fR(1), on working with hashtags
 .IP \(bu 4
 \fIoddmu-html\fR(1), on how to render a page
 .IP \(bu 4
+\fIoddmu-feed\fR(1), on how to render a feed
+.IP \(bu 4
 \fIoddmu-list\fR(1), on how to list pages and titles
 .IP \(bu 4
 \fIoddmu-links\fR(1), on how to list the outgoing links for a page
@@ -405,6 +414,8 @@ Oddmu running as a webserver:
 .IP \(bu 4
 \fIoddmu-search\fR(1), on how to run a search
 .IP \(bu 4
+\fIoddmu-sitemap\fR(1), on generating a static sitemap.\&xml
+.IP \(bu 4
 \fIoddmu-static\fR(1), on generating a static site
 .IP \(bu 4
 \fIoddmu-toc\fR(1), on how to list the table of contents (toc) a page
@@ -419,6 +430,14 @@ If you want to stop using Oddmu:
 \fIoddmu-export\fR(1), on how to export all the files as one big RSS file
 .PD
 .PP
+And finally, if you don'\&t have the man pages, you can still read the original
+documents:
+.PP
+.PD 0
+.IP \(bu 4
+\fIoddmu-man\fR(1), to get help even if you don'\&t have the man pages installed
+.PD
+.PP
 .SH AUTHORS
 .PP
 Maintained by Alex Schroeder <alex@gnu.\&org>.\&

man/oddmu.1.txt

@@ -4,7 +4,7 @@ ODDMU(1)
 
 oddmu - a wiki server
 
-Oddmu is sometimes written Oddµ because µ is the letter mu.
+Oddmu is sometimes written Oddμ because μ is the letter mu.
 
 # SYNOPSIS
 
@@ -25,10 +25,11 @@ create, most likely.
 
 See _oddmu_(5) for details about the page formatting.
 
-If you request a page that doesn't exist, Oddmu tries to find a matching
-Markdown file by appending the extension ".md" to the page name. In the example
-above, the page name requested is "index" and the file name Oddmu tries to read
-is "index.md". If no such file exists, Oddmu offers you to create the page.
+If you request a file that exists, like "index.md", Oddmu serves it as-is. If
+you request a file that doesn't exist, like "index", Oddmu checks if a matching
+Markdown file exists by appending the extension ".md". If such a file is found,
+it is turned into HTML and shown. If no such file exists, Oddmu offers you to
+create the page.
 
 If your files don't provide their own title ("# title"), the file name (without
 ".md") is used for the page title.
@@ -55,10 +56,8 @@ directory:
 - _/append/dir/name_ appends an addition to a page
 - _/upload/dir/name_ shows a form to upload a file
 - _/drop/dir/name_ saves an upload
-- _/list/dir/_ lists the files in a directory
-- _/delete/dir/name_ deletes a file or directory
-- _/rename/dir/name?name=new_ renames a file or directory
 - _/search/dir/?q=term_ to search for a term
+- _/sitemap.xml_ to list the links to all the pages
 - _/archive/dir/name.zip_ to download a zip file of a directory
 
 When calling the _save_ and _append_ action, the page name is taken from the URL
@@ -73,9 +72,9 @@ curl --form body="Did you bring a towel?" \
 When calling the _drop_ action, the query parameters used are _name_ for the
 target filename and _file_ for the file to upload. If the query parameter
 _maxwidth_ is set, an attempt is made to decode and resize the image. JPG, PNG,
-WEBP and HEIC files can be decoded. Only JPG and PNG files can be encoded,
-however. If the target name ends in _.jpg_, the _quality_ query parameter is
-also taken into account. To upload some thumbnails:
+WEBP and HEIC files can be decoded. Only JPG, PNG and WEBP files can be encoded,
+however. If the target name ends in _.jpg_ or _.png_, the _quality_ query
+parameter is also taken into account. To upload some thumbnails:
 
 ```
 for f in *.jpg; do
@@ -92,11 +91,12 @@ curl 'http://localhost:8080/search/?q=towel'
 ```
 
 The page name to act upon is optionally taken from the query parameter _id_. In
-this case, the directory must also be part of the query parameter and not of the
-URL path.
+this case, the directory must still be part of the path and may not be part of
+the _id_. This is enforced so that the path can be used by a webserver for
+access control.
 
 ```
-curl 'http://localhost:8080/view/?id=man/oddmu.1.txt'
+curl 'http://localhost:8080/view/man/?id=oddmu.1.txt'
 ```
 
 The base name for the _archive_ action is used by the browser to save the
@@ -109,8 +109,9 @@ curl --remote-name 'http://localhost:8080/archive/man/man.zip
 
 # CONFIGURATION
 
-The template files are the HTML files in the working directory. Please change
-these templates!
+The template files are the HTML files in the working directory. If they are
+missing, the default files are written to disk as soon as they are required.
+Please change these templates!
 
 The first change you should make is to replace the name and email address in the
 footer of _view.html_. Look for "Your Name" and "example.org".
@@ -231,9 +232,10 @@ it, it can't be a page name. Filenames can contain slashes and Oddmu creates
 subdirectories as necessary.
 
 Files may not end with a tilde ('~') – these are backup files. When saving pages
-and file uploads, the old file renamed to the backup file unless the backup file
-is less than an hour old, thus collapsing all edits made in an hour into a
-single diff when comparing backup and current version.
+and file uploads, the old file is renamed to the backup file unless the backup
+file is less than an hour old, thus collapsing all edits made in an hour into a
+single diff when comparing backup and current version. The backup also gets an
+updated timestamp so that subsequent edits don't immediately overwrite it.
 
 The *index* page is the default page. People visiting the "root" of the site are
 redirected to "/view/index".
@@ -248,55 +250,53 @@ current date of the machine Oddmu is running on is used. If a link already
 exists on the changes page, it is moved up to the current date. If that leaves
 an old date without any links, that date heading is removed.
 
-If you want to link to the changes page, you need to do this yourself. Add a
-link from the index, for example. The "view.html" template currently doesn't do
-it. See _oddmu-templates_(5) if you want to add the link to the template.
-
 A page whose name starts with an ISO date (YYYY-MM-DD, e.g. "2023-10-28") is
 called a *blog* page. When creating or editing blog pages, links to it are added
-from other pages.
+from other pages as follows:
 
-If the blog page name starts with the current year, a link is created from the
-index page back to the blog page being created or edited. Again, you can prevent
-this from happening by deselecting the checkbox "Add link to the list of
-changes." The index page can be edited like every other page, so it's easy to
-undo mistakes.
+- If the blog page name starts with the current year, a link is created from the
+  index page back to the blog page being created or edited. Again, you can
+  prevent this from happening by deselecting the checkbox "Add link to the list
+  of changes." The index page can be edited like every other page, so it's easy
+  to undo mistakes.
 
-For every *hashtag* used, another link might be created. If a page named like
-the hashtag exists, a backlink is added to it, linking to the new or edited blog
-page.
+- For every *hashtag* used, another link might be created. If a page named like
+  the hashtag exists, a backlink is added to it, linking to the new or edited
+  blog page.
 
-If a link to the new or edited blog page already exists but it's title is no
-longer correct, it is updated.
+- If a link to the new or edited blog page already exists but it's title is no
+  longer correct, it is updated.
 
 New links added for blog pages are added at the top of the first unnumbered list
 using the asterisk ('\*'). If no such list exists, a new one is started at the
 bottom of the page. This allows you to have a different unnumbered list further
 up on the page, as long as it uses the minus for items ('-').
 
-Changes made locally do not create any links on the changes page, the index page
-or on any hashtag pages. See _oddmu-notify_(1) for a way to add the necessary
-links to the changes page and possibly to the index and hashtag pages.
+Changes made locally to the source files (using an editor) do not create any
+links on the changes page, the index page or on any hashtag pages. See
+_oddmu-notify_(1) for a way to add the necessary links to the changes page and
+possibly to the index and hashtag pages.
 
 A hashtag consists of a number sign ('#') followed by Unicode letters, numbers
 or the underscore ('\_'). Thus, a hashtag ends with punctuation or whitespace.
 
 The page names, titles and hashtags are loaded into memory when the server
-starts. If you have a lot of pages, this takes a lot of memory.
+starts. If you have a lot of pages, this takes a lot of memory. Oddmu watches
+the working directory and any subdirectories for changes made to page files and
+updates this cache when necessary.
 
-Oddmu watches the working directory and any subdirectories for changes made
-directly. Thus, in theory, it's not necessary to restart it after making such
-changes.
-
-You cannot edit uploaded files. If you upload a file called "hello.txt" and
-attempt to edit it by using "/edit/hello.txt" you create a page with the name
-"hello.txt.md" instead.
+Uploaded files cannot be edited unless they end with ".md". If you upload a file
+called "hello.txt" and attempt to edit it by using "/edit/hello.txt" you create
+a page with the name "hello.txt.md" instead.
 
 In order to delete uploaded files via the web, create an empty file and upload
 it. In order to delete a wiki page, save an empty page.
 
 Note that some HTML file names are special: they act as templates. See
-_oddmu-templates_(5) for their names and their use.
+_oddmu-templates_(5) for their names and their use. Oddmu watches the working
+directory and any subdirectories for changes made to template files and reloads
+them. There is no need to restart the server after making changes to the
+templates.
 
 # SEE ALSO
 
@@ -317,14 +317,16 @@ If you run Oddmu as a web server:
 If you run Oddmu as a static site generator or pages offline and sync them with
 Oddmu running as a webserver:
 
-- _oddmu-hashtags_(1), on how to count the hashtags used
+- _oddmu-hashtags_(1), on working with hashtags
 - _oddmu-html_(1), on how to render a page
+- _oddmu-feed_(1), on how to render a feed
 - _oddmu-list_(1), on how to list pages and titles
 - _oddmu-links_(1), on how to list the outgoing links for a page
 - _oddmu-missing_(1), on how to find broken local links
 - _oddmu-notify_(1), on updating index, changes and hashtag pages
 - _oddmu-replace_(1), on how to search and replace text
 - _oddmu-search_(1), on how to run a search
+- _oddmu-sitemap_(1), on generating a static sitemap.xml
 - _oddmu-static_(1), on generating a static site
 - _oddmu-toc_(1), on how to list the table of contents (toc) a page
 - _oddmu-version_(1), on how to get all the build information from the binary
@@ -333,6 +335,11 @@ If you want to stop using Oddmu:
 
 - _oddmu-export_(1), on how to export all the files as one big RSS file
 
+And finally, if you don't have the man pages, you can still read the original
+documents:
+
+- _oddmu-man_(1), to get help even if you don't have the man pages installed
+
 # AUTHORS
 
 Maintained by Alex Schroeder <alex@gnu.org>.

man/oddmu.5

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU" "5" "2024-09-30" "File Formats Manual"
+.TH "ODDMU" "5" "2025-03-05" "File Formats Manual"
 .PP
 .SH NAME
 .PP
@@ -28,7 +28,7 @@ The page name has to be percent-encoded.\& See the section "Percent Encoding".\&
 If you link to the actual Markdown file (with the ".\&md" extension), then Oddmu
 serves the Markdown file!\&
 .PP
-There are three Oddµ-specific extensions: local links, hashtags and fediverse
+There are three Oddμ-specific extensions: local links, hashtags and fediverse
 account links.\& The Markdown library used features some additional extensions,
 most importantly tables and definition lists.\&
 .PP
@@ -94,7 +94,7 @@ linked to a profile page.\& In this case, "@alex" would be linked to
 "https://alexschroeder.\&ch/users/alex".\&
 .PP
 In many cases, this works as is.\& In reality, however, the link to the profile
-page needs to be retrieved via webfinger.\& Oddµ does that in the background, and
+page needs to be retrieved via webfinger.\& Oddμ does that in the background, and
 as soon as the information is available, the actual profile link is used when
 pages are rendered.\& In the example above, the result would be
 "https://social.\&alexschroeder.\&ch/@alex".\&

man/oddmu.5.txt

@@ -19,7 +19,7 @@ The page name has to be percent-encoded. See the section "Percent Encoding".
 If you link to the actual Markdown file (with the ".md" extension), then Oddmu
 serves the Markdown file!
 
-There are three Oddµ-specific extensions: local links, hashtags and fediverse
+There are three Oddμ-specific extensions: local links, hashtags and fediverse
 account links. The Markdown library used features some additional extensions,
 most importantly tables and definition lists.
 
@@ -79,7 +79,7 @@ linked to a profile page. In this case, "@alex" would be linked to
 "https://alexschroeder.ch/users/alex".
 
 In many cases, this works as is. In reality, however, the link to the profile
-page needs to be retrieved via webfinger. Oddµ does that in the background, and
+page needs to be retrieved via webfinger. Oddμ does that in the background, and
 as soon as the information is available, the actual profile link is used when
 pages are rendered. In the example above, the result would be
 "https://social.alexschroeder.ch/@alex".

man/oddmu.service.5

@@ -5,7 +5,7 @@
 .nh
 .ad l
 .\" Begin generated content:
-.TH "ODDMU.SERVICE" "5" "2024-08-23"
+.TH "ODDMU.SERVICE" "5" "2025-03-14"
 .PP
 .SH NAME
 .PP
@@ -94,8 +94,8 @@ sudo mkdir /run/oddmu
 .fi
 .RE
 .PP
-The unit file for the service defines where the "oddmu" is and where the data
-directory is.\& These are the lines you most likely have to take care of:
+The unit file for the service defines where the Oddmu binary is and where the
+data directory is.\& These are the lines you most likely have to take care of:
 .PP
 .nf
 .RS 4
@@ -152,6 +152,9 @@ Environment="ODDMU_LANGUAGES=de,en"
 .fi
 .RE
 .PP
+Make sure to change the "ExecStart" entry so that it points to your copy of the
+Oddmu binary.\&
+.PP
 Since this is a user service, the same user can edit the files using their
 favourite text editor.\&
 .PP

man/oddmu.service.5.txt

@@ -75,8 +75,8 @@ the directory or change the file name.
 sudo mkdir /run/oddmu
 ```
 
-The unit file for the service defines where the "oddmu" is and where the data
-directory is. These are the lines you most likely have to take care of:
+The unit file for the service defines where the Oddmu binary is and where the
+data directory is. These are the lines you most likely have to take care of:
 
 ```
 ExecStart=/home/oddmu/oddmu
@@ -125,6 +125,9 @@ WorkingDirectory=/home/alex/wiki
 Environment="ODDMU_LANGUAGES=de,en"
 ```
 
+Make sure to change the "ExecStart" entry so that it points to your copy of the
+Oddmu binary.
+
 Since this is a user service, the same user can edit the files using their
 favourite text editor.
 

man/scdoc-to-markdown

@@ -16,9 +16,9 @@ while (<>) {
   # italic
   s/\b_([^_]+)_\b/*$1*/g;
   # move all H1 headers to H2
-  s/^# /## /;
+  s/^# (.*)/"## ".ucfirst(lc($1))/e;
   # the new H1 title
-  s/^([A-Z.-]*\([1-9]\))( ".*")?$/# $1/;
+  s/^([A-Z.-]*\([1-9]\))( ".*")?$/"# ".lc($1)/e;
   # quoted URLs
   s/"(http.*?)"/`$1`/g;
   # quoted wiki links

man_cmd.go

@@ -0,0 +1,81 @@
+package main
+
+import (
+	"context"
+	"embed"
+	"fmt"
+	"flag"
+	"io"
+	"os"
+	"slices"
+	"strings"
+
+	"github.com/google/subcommands"
+)
+
+type manCmd struct {
+}
+
+func (cmd *manCmd) SetFlags(f *flag.FlagSet) {
+}
+
+func (*manCmd) Name() string     { return "man" }
+func (*manCmd) Synopsis() string { return "show a manual page" }
+func (*manCmd) Usage() string {
+	return `man <topic>:
+  Print a manual page on a topic. If no topic is given, the
+  available topics are listed. Substrings are possible.
+`
+}
+
+// A filesystem with a read-only copy of the man pages at build time.
+//
+//go:embed man/*.txt
+var manFiles embed.FS
+
+func (cmd *manCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	topic := strings.Join(f.Args(), " ")
+	return manCli(os.Stdout, topic)
+}
+
+func manCli(w io.Writer, topic string) subcommands.ExitStatus {
+	entries, err := manFiles.ReadDir("man")
+	if err != nil {
+		fmt.Println("An error in the build resulted in unreadable manual pages:", err)
+		return subcommands.ExitFailure
+	}
+	if (topic == "") {
+		fmt.Println("Topics:")
+		names := []string{}
+		for _, entry := range entries {
+			names = append(names, entry.Name())
+		}
+		slices.Sort(names)
+		for _, name := range names {
+			fmt.Println(name)
+		}
+		return subcommands.ExitSuccess
+	}
+	var candidate string
+	for _, entry := range entries {
+		name := entry.Name()
+		if strings.Contains(name, topic) {
+			if candidate != "" {
+				fmt.Printf("The topic '%s' matches both %s and %s, maybe more.\n", topic, candidate, name)
+				fmt.Println("Please be more specific.")
+				return subcommands.ExitFailure
+			}
+			candidate = name
+		}
+	}
+	if candidate == "" {
+		fmt.Printf("No manual page matching topic '%s' found\n", topic)
+		return subcommands.ExitFailure
+	}
+	b, err := manFiles.ReadFile("man/" + candidate)
+	if err != nil {
+		return subcommands.ExitFailure
+	}
+	os.Stdout.Write(b)
+	return subcommands.ExitSuccess
+}

man_test.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"go/parser"
 	"go/token"
 	"io/fs"
@@ -12,6 +11,8 @@ import (
 	"sort"
 	"strings"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 // Does oddmu(1) link to all the other man pages?
@@ -20,14 +21,14 @@ func TestManPages(t *testing.T) {
 	main := string(b)
 	assert.NoError(t, err)
 	count := 0
-	filepath.Walk("man", func(path string, info fs.FileInfo, err error) error {
+	filepath.Walk("man", func(fp string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
-		if strings.HasSuffix(path, ".txt") &&
-			path != "man/oddmu.1.txt" {
+		if strings.HasSuffix(fp, ".txt") &&
+			fp != "man/oddmu.1.txt" {
 			count++
-			s := strings.TrimPrefix(path, "man/")
+			s := strings.TrimPrefix(fp, "man/")
 			s = strings.TrimSuffix(s, ".txt")
 			i := strings.LastIndex(s, ".")
 			ref := "_" + s[:i] + "_(" + s[i+1:] + ")"
@@ -44,15 +45,15 @@ func TestManTemplates(t *testing.T) {
 	man := string(b)
 	assert.NoError(t, err)
 	count := 0
-	filepath.Walk(".", func(path string, info fs.FileInfo, err error) error {
+	filepath.Walk(".", func(fp string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
-		if strings.HasSuffix(path, ".html") {
+		if strings.HasSuffix(fp, ".html") {
 			count++
-			assert.Contains(t, man, path, path)
+			assert.Contains(t, man, fp, fp)
 		}
-		if path != "." && info.IsDir() {
+		if fp != "." && info.IsDir() {
 			return filepath.SkipDir
 		}
 		return nil
@@ -60,6 +61,40 @@ func TestManTemplates(t *testing.T) {
 	assert.Greater(t, count, 0, "no templates were found")
 }
 
+// Does oddmu-templates(5) mention all the template attributes?
+func TestManTemplateAttributes(t *testing.T) {
+	mfp := "man/oddmu-templates.5.txt"
+	b, err := os.ReadFile(mfp)
+	man := string(b)
+	assert.NoError(t, err)
+	re := regexp.MustCompile(`{{(?:(?:if|range) )?(\.[A-Z][a-z]*)}}`)
+	filepath.Walk(".", func(fp string, info fs.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if fp != "." && info.IsDir() {
+			return filepath.SkipDir
+		}
+		if !strings.HasSuffix(fp, ".html") {
+			return nil
+		}
+		h, err := os.ReadFile(fp)
+		matches := re.FindAllSubmatch(h, -1)
+		assert.Greater(t, len(matches), 0, "%s contains no attributes", fp)
+		seen := make(map[string]bool)
+		for _, m := range matches {
+			attr := string(m[1])
+			if seen[attr] {
+				continue
+			}
+			seen[attr] = true
+			assert.Contains(t, man, "_{{"+attr+"}}_", "%s does not mention _{{%s}}_", mfp, attr)
+		}
+		assert.NoError(t, err)
+		return nil
+	})
+}
+
 // Does oddmu(1) mention all the actions? We're not going to parse the go file and make sure to catch them all. I tried
 // it, and it's convoluted.
 func TestManActions(t *testing.T) {
@@ -71,7 +106,7 @@ func TestManActions(t *testing.T) {
 	wiki := string(b)
 	count := 0
 	// this doesn't match the root handler
-	re := regexp.MustCompile(`http.HandleFunc\("(/[a-z]+/)", makeHandler\([a-z]+Handler, (true|false)\)\)`)
+	re := regexp.MustCompile(`mux\.HandleFunc\("(/[a-z]+/)", makeHandler\([a-z]+Handler, (true|false)(, http\.Method(Get|Post))+\)\)`)
 	for _, match := range re.FindAllStringSubmatch(wiki, -1) {
 		count++
 		var path string
@@ -87,6 +122,27 @@ func TestManActions(t *testing.T) {
 	assert.Contains(t, main, "\n- _/_", "root")
 }
 
+// Does oddmu(1) mention all the commands?
+func TestManCommands(t *testing.T) {
+	b, err := os.ReadFile("man/oddmu.1.txt")
+	assert.NoError(t, err)
+	main := string(b)
+	b, err = os.ReadFile("wiki.go")
+	assert.NoError(t, err)
+	wiki := string(b)
+	count := 0
+	re := regexp.MustCompile(`subcommands\.Register\(&([a-z]+)Cmd`)
+	for _, match := range re.FindAllStringSubmatch(wiki, -1) {
+		count++
+		command := match[1]
+		ref := "_oddmu-" + command + "_(1)"
+		assert.Contains(t, main, ref, "link to the '%s' command", command)
+	}
+	assert.Greater(t, count, 0, "no commands were found")
+	// root handler is manual
+	assert.Contains(t, main, "\n- _/_", "root")
+}
+
 // Does the README link to all the man pages and all the Go source files,
 // excluding the command and test files?
 func TestReadme(t *testing.T) {
@@ -94,13 +150,13 @@ func TestReadme(t *testing.T) {
 	readme := string(b)
 	assert.NoError(t, err)
 	count := 0
-	filepath.Walk("man", func(path string, info fs.FileInfo, err error) error {
+	filepath.Walk("man", func(fp string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
-		if strings.HasSuffix(path, ".txt") {
+		if strings.HasSuffix(fp, ".txt") {
 			count++
-			s := strings.TrimPrefix(path, "man/")
+			s := strings.TrimPrefix(fp, "man/")
 			s = strings.TrimSuffix(s, ".txt")
 			i := strings.LastIndex(s, ".")
 			ref := "[" + s[:i] + "(" + s[i+1:] + ")]"
@@ -110,15 +166,17 @@ func TestReadme(t *testing.T) {
 	})
 	assert.Greater(t, count, 0, "no man pages were found")
 	count = 0
-	filepath.Walk(".", func(path string, info fs.FileInfo, err error) error {
+	filepath.Walk(".", func(fp string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
-		if strings.HasSuffix(path, ".go") &&
-			!strings.HasSuffix(path, "_test.go") &&
-			!strings.HasSuffix(path, "_cmd.go") {
+		if strings.HasSuffix(fp, ".go") &&
+			!strings.HasSuffix(fp, "_test.go") &&
+			!strings.HasSuffix(fp, "_cmd.go") &&
+			!strings.HasSuffix(fp, "_common.go") &&
+			!strings.HasSuffix(fp, "_nowebp.go") {
 			count++
-			s := strings.TrimPrefix(path, "./")
+			s := strings.TrimPrefix(fp, "./")
 			ref := "`" + s + "`"
 			assert.Contains(t, readme, ref, ref)
 		}

missing_cmd.go

@@ -4,14 +4,15 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/gomarkdown/markdown"
-	"github.com/gomarkdown/markdown/ast"
-	"github.com/google/subcommands"
 	"io"
 	"net/url"
 	"os"
 	"path"
 	"strings"
+
+	"github.com/gomarkdown/markdown"
+	"github.com/gomarkdown/markdown/ast"
+	"github.com/google/subcommands"
 )
 
 type missingCmd struct {
@@ -32,6 +33,12 @@ func (cmd *missingCmd) SetFlags(f *flag.FlagSet) {
 }
 
 func (cmd *missingCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	n, err := index.load()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Index load: %s\n", err)
+		return subcommands.ExitFailure
+	}
+	fmt.Fprintf(os.Stderr, "Indexed %d pages\n", n)
 	return missingCli(os.Stdout, &index)
 }
 
@@ -94,8 +101,7 @@ func (p *Page) links() []string {
 	doc := markdown.Parse(p.Body, parser)
 	ast.WalkFunc(doc, func(node ast.Node, entering bool) ast.WalkStatus {
 		if entering {
-			switch v := node.(type) {
-			case *ast.Link:
+			if v, ok := node.(*ast.Link); ok {
 				link := string(v.Destination)
 				url, err := url.Parse(link)
 				if err != nil {

missing_cmd_test.go

@@ -2,9 +2,10 @@ package main
 
 import (
 	"bytes"
+	"testing"
+
 	"github.com/google/subcommands"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestMissingCmd(t *testing.T) {

notify_cmd.go

@@ -4,9 +4,11 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/google/subcommands"
 	"io"
 	"os"
+	"strings"
+
+	"github.com/google/subcommands"
 )
 
 type notifyCmd struct {
@@ -30,8 +32,12 @@ func (cmd *notifyCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface
 }
 
 func notifyCli(w io.Writer, args []string) subcommands.ExitStatus {
-	index.load()
 	for _, name := range args {
+		if !strings.HasSuffix(name, ".md") {
+			fmt.Fprintf(os.Stderr, "%s does not end in '.md'\n", name)
+			return subcommands.ExitFailure
+		}
+		name = name[0 : len(name)-3]
 		p, err := loadPage(name)
 		if err != nil {
 			fmt.Fprintf(w, "Loading %s: %s\n", name, err)

page.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"github.com/microcosm-cc/bluemonday"
 	"html/template"
 	"log"
 	"net/url"
@@ -12,6 +11,8 @@ import (
 	"regexp"
 	"strings"
 	"time"
+
+	"github.com/microcosm-cc/bluemonday"
 )
 
 // Page is a struct containing information about a single page. Title is the title extracted from the page content using
@@ -21,7 +22,7 @@ type Page struct {
 	Title    string
 	Name     string
 	Body     []byte
-	Html     template.HTML
+	HTML     template.HTML
 	Hashtags []string
 }
 
@@ -29,7 +30,7 @@ type Page struct {
 // the Name "foo").
 type Link struct {
 	Title string
-	Url   string
+	URL   string
 }
 
 // blogRe is a regular expression that matches blog pages. If the filename of a blog page starts with an ISO date
@@ -61,10 +62,10 @@ func nameEscape(s string) string {
 }
 
 // save saves a Page. The path is based on the Page.Name and gets the ".md" extension. Page.Body is saved, without any
-// carriage return characters ("\r"). Page.Title and Page.Html are not saved. There is no caching. Before removing or
+// carriage return characters ("\r"). Page.Title and Page.HTML are not saved. There is no caching. Before removing or
 // writing a file, the old copy is renamed to a backup, appending "~". Errors are not logged but returned.
 func (p *Page) save() error {
-	fp := filepath.FromSlash(p.Name + ".md")
+	fp := filepath.FromSlash(p.Name) + ".md"
 	watches.ignore(fp)
 	s := bytes.ReplaceAll(p.Body, []byte{'\r'}, []byte{})
 	if len(s) == 0 {
@@ -88,9 +89,21 @@ func (p *Page) save() error {
 	return os.WriteFile(fp, s, 0644)
 }
 
-// backup a file by renaming (!) it unless the existing backup is less than an hour old. A backup gets a tilde appended
-// to it ("~"). This is true even if the file refers to a binary file like "image.png" and most applications don't know
-// what to do with a file called "image.png~". This expects a file path. Use filepath.FromSlash(path) if necessary.
+// ModTime returns the last modification time of the page file. If the page does not exist, the current time is
+// returned.
+func (p *Page) ModTime() (time.Time, error) {
+	fp := filepath.FromSlash(p.Name) + ".md"
+	fi, err := os.Stat(fp)
+	if err != nil {
+		return time.Now(), err
+	}
+	return fi.ModTime(), nil
+}
+
+// backup a file by renaming it unless the existing backup is less than an hour old. A backup gets a tilde appended to
+// it ("~"). This is true even if the file refers to a binary file like "image.png" and most applications don't know
+// what to do with a file called "image.png~". This expects a filepath. The backup file gets its modification time set
+// to now so that subsequent edits don't immediately overwrite it again.
 func backup(fp string) error {
 	_, err := os.Stat(fp)
 	if err != nil {
@@ -99,21 +112,26 @@ func backup(fp string) error {
 	bp := fp + "~"
 	fi, err := os.Stat(bp)
 	if err != nil || time.Since(fi.ModTime()).Minutes() >= 60 {
-		return os.Rename(fp, bp)
+		err = os.Rename(fp, bp)
+		if err != nil {
+			return err
+		}
+		ts := time.Now()
+		return os.Chtimes(bp, ts, ts)
 	}
 	return nil
 }
 
 // loadPage loads a Page given a name. The path loaded is that Page.Name with the ".md" extension. The Page.Title is set
-// to the Page.Name (and possibly changed, later). The Page.Body is set to the file content. The Page.Html remains
+// to the Page.Name (and possibly changed, later). The Page.Body is set to the file content. The Page.HTML remains
 // undefined (there is no caching).
-func loadPage(path string) (*Page, error) {
-	path = strings.TrimPrefix(path, "./") // result of a filepath.TreeWalk starting with "."
-	body, err := os.ReadFile(filepath.FromSlash(path + ".md"))
+func loadPage(name string) (*Page, error) {
+	name = strings.TrimPrefix(name, "./") // result of a path.TreeWalk starting with "."
+	body, err := os.ReadFile(filepath.FromSlash(name) + ".md")
 	if err != nil {
 		return nil, err
 	}
-	return &Page{Title: path, Name: path, Body: body}, nil
+	return &Page{Title: name, Name: name, Body: body}, nil
 }
 
 // handleTitle extracts the title from a Page and sets Page.Title, if any. If replace is true, the page title is also
@@ -130,11 +148,10 @@ func (p *Page) handleTitle(replace bool) {
 	}
 }
 
-// summarize sets Page.Html to an extract.
+// summarize sets Page.HTML to an extract.
 func (p *Page) summarize(q string) {
 	t := p.plainText()
-	p.Name = nameEscape(p.Name)
-	p.Html = sanitizeStrict(snippets(q, t))
+	p.HTML = sanitizeStrict(snippets(q, t))
 }
 
 // IsBlog returns true if the page name starts with an ISO date
@@ -143,20 +160,53 @@ func (p *Page) IsBlog() bool {
 	return blogRe.MatchString(name)
 }
 
-// Dir returns the directory the page is in. It's either the empty string if the page is in the Oddmu working directory,
-// or it ends in a slash. This is used to create the upload link in "view.html", for example.
+const upperhex = "0123456789ABCDEF"
+
+// Path returns the Page.Name with some characters escaped because html/template doesn't escape those. This is suitable
+// for use in HTML templates.
+func (p *Page) Path() string {
+	return pathEncode(p.Name)
+}
+
+// pathEncode returns the page name with some characters escaped because html/template doesn't escape those. This is
+// suitable for use in HTML templates.
+func pathEncode(s string) string {
+	n := strings.Count(s, ";") + strings.Count(s, ",") + strings.Count(s, "?") + strings.Count(s, "#")
+	if n == 0 {
+		return s
+	}
+	t := make([]byte, len(s)+2*n)
+	j := 0
+	for i := 0; i < len(s); i++ {
+		switch s[i] {
+		case ';', ',', '?', '#':
+			t[j] = '%'
+			t[j+1] = upperhex[s[i]>>4]
+			t[j+2] = upperhex[s[i]&15]
+			j += 3
+		default:
+			t[j] = s[i]
+			j++
+		}
+	}
+	return string(t)
+}
+
+// Dir returns the directory part of the page name, percent-escaped except for the slashes. It's either the empty string
+// if the page is in the Oddmu working directory, or it ends in a slash. This is used to create the upload link in
+// "view.html", for example.
 func (p *Page) Dir() string {
-	d := filepath.Dir(p.Name)
+	d := path.Dir(p.Name)
 	if d == "." {
 		return ""
 	}
-	return d + "/"
+	return pathEncode(d) + "/"
 }
 
-// Base returns the basename of the page name: no directory. This is used to create the upload link in "view.html", for
-// example.
+// Base returns the  basename of the page  name: no directory, percent-escaped except  for the slashes. This  is used to
+// create the upload link in "view.html", for example.
 func (p *Page) Base() string {
-	n := filepath.Base(p.Name)
+	n := path.Base(p.Name)
 	if n == "." {
 		return ""
 	}
@@ -185,7 +235,7 @@ func (p *Page) Parents() []*Link {
 		if !ok {
 			title = "…"
 		}
-		link := &Link{Title: title, Url: strings.Repeat("../", len(elems)-i-1) + "index"}
+		link := &Link{Title: title, URL: strings.Repeat("../", len(elems)-i-1) + "index"}
 		links = append(links, link)
 		s += elems[i] + "/"
 	}

page_test.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/stretchr/testify/assert"
 	"regexp"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestPageTitle(t *testing.T) {
@@ -57,13 +58,13 @@ And untouchable`)}
 	p = &Page{Name: "testdata/parents/children/something/other"}
 	// "testdata/parents/children/something/index" is a sibling and doesn't count!
 	parents := p.Parents()
-	assert.Equal(t, "Welcome to Oddµ", parents[0].Title)
-	assert.Equal(t, "../../../../index", parents[0].Url)
+	assert.Equal(t, "Welcome to Oddμ", parents[0].Title)
+	assert.Equal(t, "../../../../index", parents[0].URL)
 	assert.Equal(t, "…", parents[1].Title)
-	assert.Equal(t, "../../../index", parents[1].Url)
+	assert.Equal(t, "../../../index", parents[1].URL)
 	assert.Equal(t, "Solar", parents[2].Title)
-	assert.Equal(t, "../../index", parents[2].Url)
+	assert.Equal(t, "../../index", parents[2].URL)
 	assert.Equal(t, "Lunar", parents[3].Title)
-	assert.Equal(t, "../index", parents[3].Url)
+	assert.Equal(t, "../index", parents[3].URL)
 	assert.Equal(t, 4, len(parents))
 }