forked from mirror/oddmu
f99a54e2ef
In order to make use of the shell's file-completion, the command now takes filenames. These end in '.md'. Previously, that resulted in errors such as "Cannot load index.md: open index.md.md: no such file or directory".
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"github.com/google/subcommands"
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"io"
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"os"
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"strings"
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)
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type htmlCmd struct {
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template string
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}
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func (*htmlCmd) Name() string { return "html" }
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func (*htmlCmd) Synopsis() string { return "render a page as HTML" }
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func (*htmlCmd) Usage() string {
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return `html [-template <template name>] <page name> ...:
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Render one or more pages as HTML.
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Use a single - to read Markdown from stdin.
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`
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}
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func (cmd *htmlCmd) SetFlags(f *flag.FlagSet) {
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f.StringVar(&cmd.template, "template", "",
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"use the given HTML file as a template (probably view.html or static.html).")
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}
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func (cmd *htmlCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
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return htmlCli(os.Stdout, cmd.template, f.Args())
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}
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func htmlCli(w io.Writer, template string, args []string) subcommands.ExitStatus {
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if len(args) == 1 && args[0] == "-" {
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body, err := io.ReadAll(os.Stdin)
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if err != nil {
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fmt.Fprintf(w, "Cannot read from stdin: %s\n", err)
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return subcommands.ExitFailure
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}
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p := &Page{Name: "stdin", Body: body}
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return p.printHtml(w, template)
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}
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for _, name := range args {
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if !strings.HasSuffix(name, ".md") {
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fmt.Fprintf(os.Stderr, "%s does not end in '.md'\n", name)
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return subcommands.ExitFailure
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}
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name = name[0:len(name)-3]
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p, err := loadPage(name)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Cannot load %s: %s\n", name, err)
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return subcommands.ExitFailure
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}
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status := p.printHtml(w, template)
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if status != subcommands.ExitSuccess {
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return status
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}
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}
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return subcommands.ExitSuccess
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}
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func (p *Page) printHtml(w io.Writer, template string) subcommands.ExitStatus {
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if len(template) > 0 {
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t := template
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loadTemplates()
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p.handleTitle(true)
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p.renderHtml()
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err := templates.template[t].Execute(w, p)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Cannot execute %s template for %s: %s\n", t, p.Name, err)
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return subcommands.ExitFailure
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}
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} else {
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// do not handle title
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p.renderHtml()
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fmt.Fprintln(w, p.Html)
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}
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return subcommands.ExitSuccess
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}
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