mirror of
https://github.com/rclone/rclone
synced 2024-11-27 05:23:40 +01:00
171 lines
4.3 KiB
Go
171 lines
4.3 KiB
Go
// Package gendocs provides the gendocs command.
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package gendocs
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import (
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"bytes"
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"log"
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"os"
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"path"
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"path/filepath"
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"regexp"
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"strings"
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"text/template"
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"time"
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"github.com/rclone/rclone/cmd"
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"github.com/rclone/rclone/lib/file"
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"github.com/spf13/cobra"
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"github.com/spf13/cobra/doc"
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"github.com/spf13/pflag"
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)
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func init() {
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cmd.Root.AddCommand(commandDefinition)
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}
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// define things which go into the frontmatter
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type frontmatter struct {
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Date string
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Title string
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Description string
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Slug string
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URL string
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Source string
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Annotations map[string]string
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}
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var frontmatterTemplate = template.Must(template.New("frontmatter").Parse(`---
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title: "{{ .Title }}"
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description: "{{ .Description }}"
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slug: {{ .Slug }}
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url: {{ .URL }}
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{{- range $key, $value := .Annotations }}
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{{ $key }}: {{ $value }}
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{{- end }}
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# autogenerated - DO NOT EDIT, instead edit the source code in {{ .Source }} and as part of making a release run "make commanddocs"
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---
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`))
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var commandDefinition = &cobra.Command{
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Use: "gendocs output_directory",
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Short: `Output markdown docs for rclone to the directory supplied.`,
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Long: `
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This produces markdown docs for the rclone commands to the directory
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supplied. These are in a format suitable for hugo to render into the
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rclone.org website.`,
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Annotations: map[string]string{
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"versionIntroduced": "v1.33",
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},
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RunE: func(command *cobra.Command, args []string) error {
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cmd.CheckArgs(1, 1, command, args)
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now := time.Now().Format(time.RFC3339)
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// Create the directory structure
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root := args[0]
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out := filepath.Join(root, "commands")
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err := file.MkdirAll(out, 0777)
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if err != nil {
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return err
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}
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// Write the flags page
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var buf bytes.Buffer
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cmd.Root.SetOutput(&buf)
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cmd.Root.SetArgs([]string{"help", "flags"})
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cmd.GeneratingDocs = true
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err = cmd.Root.Execute()
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if err != nil {
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return err
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}
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err = os.WriteFile(filepath.Join(root, "flags.md"), buf.Bytes(), 0777)
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if err != nil {
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return err
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}
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// Look up name => details for prepender
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type commandDetails struct {
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Short string
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Annotations map[string]string
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}
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var commands = map[string]commandDetails{}
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var addCommandDetails func(root *cobra.Command)
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addCommandDetails = func(root *cobra.Command) {
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name := strings.ReplaceAll(root.CommandPath(), " ", "_") + ".md"
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commands[name] = commandDetails{
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Short: root.Short,
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Annotations: root.Annotations,
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}
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for _, c := range root.Commands() {
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addCommandDetails(c)
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}
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}
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addCommandDetails(cmd.Root)
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// markup for the docs files
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prepender := func(filename string) string {
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name := filepath.Base(filename)
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base := strings.TrimSuffix(name, path.Ext(name))
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data := frontmatter{
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Date: now,
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Title: strings.ReplaceAll(base, "_", " "),
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Description: commands[name].Short,
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Slug: base,
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URL: "/commands/" + strings.ToLower(base) + "/",
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Source: strings.ReplaceAll(strings.ReplaceAll(base, "rclone", "cmd"), "_", "/") + "/",
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Annotations: commands[name].Annotations,
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}
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var buf bytes.Buffer
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err := frontmatterTemplate.Execute(&buf, data)
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if err != nil {
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log.Fatalf("Failed to render frontmatter template: %v", err)
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}
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return buf.String()
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}
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linkHandler := func(name string) string {
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base := strings.TrimSuffix(name, path.Ext(name))
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return "/commands/" + strings.ToLower(base) + "/"
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}
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// Hide all of the root entries flags
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cmd.Root.Flags().VisitAll(func(flag *pflag.Flag) {
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flag.Hidden = true
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})
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err = doc.GenMarkdownTreeCustom(cmd.Root, out, prepender, linkHandler)
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if err != nil {
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return err
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}
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var outdentTitle = regexp.MustCompile(`(?m)^#(#+)`)
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// Munge the files to add a link to the global flags page
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err = filepath.Walk(out, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if !info.IsDir() {
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b, err := os.ReadFile(path)
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if err != nil {
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return err
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}
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doc := string(b)
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doc = strings.Replace(doc, "\n### SEE ALSO", `
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See the [global flags page](/flags/) for global options not listed here.
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### SEE ALSO`, 1)
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// outdent all the titles by one
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doc = outdentTitle.ReplaceAllString(doc, `$1`)
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err = os.WriteFile(path, []byte(doc), 0777)
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if err != nil {
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return err
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}
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}
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return nil
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})
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if err != nil {
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return err
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}
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return nil
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},
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}
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