forked from mirror/oddmu
72 lines
1.7 KiB
Go
72 lines
1.7 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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"path/filepath"
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"strings"
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)
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type listCmd struct {
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dir string
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}
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func (cmd *listCmd) SetFlags(f *flag.FlagSet) {
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f.StringVar(&cmd.dir, "dir", "", "list only pages within this sub-directory")
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}
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func (*listCmd) Name() string { return "list" }
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func (*listCmd) Synopsis() string { return "list pages with name and title" }
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func (*listCmd) Usage() string {
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return `list [-dir string]:
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List all pages with name and title, separated by a tabulator.
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`
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}
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func (cmd *listCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
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return listCli(os.Stdout, cmd.dir, f.Args())
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}
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// listCli runs the list command on the command line. It is used
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// here with an io.Writer for easy testing.
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func listCli(w io.Writer, dir string, args []string) subcommands.ExitStatus {
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dir, err := checkDir(dir)
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if err != nil {
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return subcommands.ExitFailure
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}
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index.load()
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index.RLock()
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defer index.RUnlock()
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for name, title := range index.titles {
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if strings.HasPrefix(name, dir) {
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name = strings.Replace(name, dir, "", 1)
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fmt.Fprintf(w, "%s\t%s\n", name, title)
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}
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}
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return subcommands.ExitSuccess
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}
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// checkDir returns an error if the directory doesn't exist. If if exists, it returns a copy ending in a slash suiteable
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// for substring matching of page names.
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func checkDir(dir string) (string, error) {
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if dir != "" {
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fi, err := os.Stat(filepath.FromSlash(dir))
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if err != nil {
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fmt.Println(err)
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return "", err
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}
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if !fi.IsDir() {
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fmt.Println("This is not a sub-directory:", dir)
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return "", err
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}
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if !strings.HasSuffix(dir, "/") {
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dir += "/"
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}
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}
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return dir, nil
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}
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