add option to version command to print repo version

License: MIT
Signed-off-by: Jeromy <jeromyj@gmail.com>

core/commands/version.go

@@ -7,11 +7,13 @@ import (
 
 	cmds "github.com/ipfs/go-ipfs/commands"
 	config "github.com/ipfs/go-ipfs/repo/config"
+	fsrepo "github.com/ipfs/go-ipfs/repo/fsrepo"
 )
 
 type VersionOutput struct {
 	Version string
-	Commit string
+	Commit  string
+	Repo    string
 }
 
 var VersionCmd = &cmds.Command{
@@ -23,17 +25,28 @@ var VersionCmd = &cmds.Command{
 	Options: []cmds.Option{
 		cmds.BoolOption("number", "n", "Only show the version number"),
 		cmds.BoolOption("commit", "Show the commit hash"),
+		cmds.BoolOption("repo", "Show repo version"),
 	},
 	Run: func(req cmds.Request, res cmds.Response) {
 		res.SetOutput(&VersionOutput{
 			Version: config.CurrentVersionNumber,
-			Commit: config.CurrentCommit,
+			Commit:  config.CurrentCommit,
+			Repo:    fsrepo.RepoVersion,
 		})
 	},
 	Marshalers: cmds.MarshalerMap{
 		cmds.Text: func(res cmds.Response) (io.Reader, error) {
 			v := res.Output().(*VersionOutput)
 
+			repo, _, err := res.Request().Option("repo").Bool()
+			if err != nil {
+				return nil, err
+			}
+
+			if repo {
+				return strings.NewReader(v.Repo + "\n"), nil
+			}
+
 			commit, found, err := res.Request().Option("commit").Bool()
 			commitTxt := ""
 			if err != nil {