DockerCLI/docs/generate/generate.go

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// This file is intended for use with "go run"; it isn't really part of the package.
//go:build docsgen
// +build docsgen
package main
import (
"log"
"os"
clidocstool "github.com/docker/cli-docs-tool"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/commands"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
const defaultSourcePath = "docs/reference/commandline/"
type options struct {
source string
target string
formats []string
}
func gen(opts *options) error {
log.SetFlags(0)
dockerCLI, err := command.NewDockerCli()
if err != nil {
return err
}
cmd := &cobra.Command{
Use: "docker [OPTIONS] COMMAND [ARG...]",
Short: "The base command for the Docker CLI.",
}
clientOpts, _ := cli.SetupRootCommand(cmd)
if err := dockerCLI.Initialize(clientOpts); err != nil {
return err
}
commands.AddCommands(cmd, dockerCLI)
c, err := clidocstool.New(clidocstool.Options{
Root: cmd,
SourceDir: opts.source,
TargetDir: opts.target,
Plugin: false,
})
if err != nil {
return err
}
for _, format := range opts.formats {
switch format {
case "md":
if err = c.GenMarkdownTree(cmd); err != nil {
return err
}
case "yaml":
if err = c.GenYamlTree(cmd); err != nil {
return err
}
default:
return errors.Errorf("unknown format %q", format)
}
}
return nil
}
func run() error {
opts := &options{}
flags := pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError)
flags.StringVar(&opts.source, "source", defaultSourcePath, "Docs source folder")
flags.StringVar(&opts.target, "target", defaultSourcePath, "Docs target folder")
flags.StringSliceVar(&opts.formats, "formats", []string{}, "Format (md, yaml)")
if err := flags.Parse(os.Args[1:]); err != nil {
return err
}
if len(opts.formats) == 0 {
return errors.New("Docs format required")
}
return gen(opts)
}
func main() {
if err := run(); err != nil {
log.Printf("ERROR: %+v", err)
os.Exit(1)
}
}