package main import ( "fmt" "io/ioutil" "log" "os" "path/filepath" "strings" "github.com/docker/cli/cli/command" "github.com/docker/cli/cli/command/commands" "github.com/docker/docker/pkg/term" "github.com/spf13/cobra" "github.com/spf13/pflag" ) const descriptionSourcePath = "docs/reference/commandline/" func generateCliYaml(opts *options) error { stdin, stdout, stderr := term.StdStreams() dockerCli := command.NewDockerCli(stdin, stdout, stderr, false) cmd := &cobra.Command{Use: "docker"} commands.AddCommands(cmd, dockerCli) source := filepath.Join(opts.source, descriptionSourcePath) if err := loadLongDescription(cmd, source); err != nil { return err } cmd.DisableAutoGenTag = true return GenYamlTree(cmd, opts.target) } func loadLongDescription(cmd *cobra.Command, path ...string) error { for _, cmd := range cmd.Commands() { if cmd.Name() == "" { continue } fullpath := filepath.Join(path[0], strings.Join(append(path[1:], cmd.Name()), "_")+".md") if cmd.HasSubCommands() { loadLongDescription(cmd, path[0], cmd.Name()) } if _, err := os.Stat(fullpath); err != nil { log.Printf("WARN: %s does not exist, skipping\n", fullpath) continue } content, err := ioutil.ReadFile(fullpath) if err != nil { return err } description, examples := parseMDContent(string(content)) cmd.Long = description cmd.Example = examples } return nil } type options struct { source string target string } func parseArgs() (*options, error) { opts := &options{} cwd, _ := os.Getwd() flags := pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError) flags.StringVar(&opts.source, "root", cwd, "Path to project root") flags.StringVar(&opts.target, "target", "/tmp", "Target path for generated yaml files") err := flags.Parse(os.Args[1:]) return opts, err } func main() { opts, err := parseArgs() if err != nil { fmt.Fprintln(os.Stderr, err.Error()) } fmt.Printf("Project root: %s\n", opts.source) fmt.Printf("Generating yaml files into %s\n", opts.target) if err := generateCliYaml(opts); err != nil { fmt.Fprintf(os.Stderr, "Failed to generate yaml files: %s\n", err.Error()) } }