coder/scripts/clidocgen/gen.go

149 lines
3.1 KiB
Go

package main
import (
"fmt"
"io"
"os"
"path/filepath"
"strings"
"text/template"
_ "embed"
"github.com/acarl005/stripansi"
"github.com/coder/coder/v2/buildinfo"
"github.com/coder/flog"
"github.com/coder/serpent"
)
//go:embed command.tpl
var commandTemplateRaw string
var commandTemplate *template.Template
func init() {
commandTemplate = template.Must(
template.New("command.tpl").Funcs(template.FuncMap{
"visibleSubcommands": func(cmd *serpent.Command) []*serpent.Command {
var visible []*serpent.Command
for _, sub := range cmd.Children {
if sub.Hidden {
continue
}
visible = append(visible, sub)
}
return visible
},
"visibleOptions": func(cmd *serpent.Command) []serpent.Option {
var visible []serpent.Option
for _, opt := range cmd.Options {
if opt.Hidden {
continue
}
visible = append(visible, opt)
}
return visible
},
"atRoot": func(cmd *serpent.Command) bool {
return cmd.FullName() == "coder"
},
"newLinesToBr": func(s string) string {
return strings.ReplaceAll(s, "\n", "<br/>")
},
"wrapCode": func(s string) string {
return fmt.Sprintf("<code>%s</code>", s)
},
"commandURI": func(cmd *serpent.Command) string {
return fmtDocFilename(cmd)
},
"fullName": fullName,
"tableHeader": func() string {
return `| | |
| --- | --- |`
},
},
).Parse(strings.TrimSpace(commandTemplateRaw)),
)
}
func fullName(cmd *serpent.Command) string {
if cmd.FullName() == "coder" {
return "coder"
}
return strings.TrimPrefix(cmd.FullName(), "coder ")
}
func fmtDocFilename(cmd *serpent.Command) string {
if cmd.FullName() == "coder" {
// Special case for index.
return "../cli.md"
}
name := strings.ReplaceAll(fullName(cmd), " ", "_")
return fmt.Sprintf("%s.md", name)
}
func writeCommand(w io.Writer, cmd *serpent.Command) error {
var b strings.Builder
err := commandTemplate.Execute(&b, cmd)
if err != nil {
return err
}
content := stripansi.Strip(b.String())
// Remove the version and its right space, since during this script running
// there is no build info available
content = strings.ReplaceAll(content, buildinfo.Version()+" ", "")
// Remove references to the current working directory
cwd, err := os.Getwd()
if err != nil {
return err
}
content = strings.ReplaceAll(content, cwd, ".")
homedir, err := os.UserHomeDir()
if err != nil {
return err
}
content = strings.ReplaceAll(content, homedir, "~")
_, err = w.Write([]byte(content))
return err
}
func genTree(dir string, cmd *serpent.Command, wroteLog map[string]*serpent.Command) error {
if cmd.Hidden {
return nil
}
path := filepath.Join(dir, fmtDocFilename(cmd))
// Write out root.
fi, err := os.OpenFile(
path,
os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0o644,
)
if err != nil {
return err
}
defer fi.Close()
err = writeCommand(fi, cmd)
if err != nil {
return err
}
flog.Successf(
"wrote\t%s",
fi.Name(),
)
wroteLog[path] = cmd
for _, sub := range cmd.Children {
err = genTree(dir, sub, wroteLog)
if err != nil {
return err
}
}
return nil
}