From 013ef66372f010c644312d0dfe358dcfe6982901 Mon Sep 17 00:00:00 2001
From: Beatriz Vieira <beatriznsv@gmail.com>
Date: Wed, 4 Dec 2019 19:37:50 -0300
Subject: [PATCH] feat: git tag command

---
 cmd/git-sv/handlers.go | 24 ++++++++++++++++++++++++
 cmd/git-sv/main.go     |  6 ++++++
 sv/git.go              | 11 +++++++++--
 3 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/cmd/git-sv/handlers.go b/cmd/git-sv/handlers.go
index 10a1cdd..1b66cee 100644
--- a/cmd/git-sv/handlers.go
+++ b/cmd/git-sv/handlers.go
@@ -83,3 +83,27 @@ func releaseNotesHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor,
 		return nil
 	}
 }
+
+func tagHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, rnProcessor sv.ReleaseNoteProcessor) func(c *cli.Context) error {
+	return func(c *cli.Context) error {
+		describe := git.Describe()
+
+		currentVer, err := sv.ToVersion(describe)
+		if err != nil {
+			return fmt.Errorf("error parsing version: %s from describe, message: %v", describe, err)
+		}
+
+		commits, err := git.Log(describe)
+		if err != nil {
+			return fmt.Errorf("error getting git log, message: %v", err)
+		}
+
+		nextVer := semverProcessor.NextVersion(currentVer, commits)
+		fmt.Printf("%d.%d.%d\n", nextVer.Major(), nextVer.Minor(), nextVer.Patch())
+
+		if err := git.Tag(nextVer); err != nil {
+			return fmt.Errorf("error generate tag version: %s, message: %v", nextVer.String(), err)
+		}
+		return nil
+	}
+}
diff --git a/cmd/git-sv/main.go b/cmd/git-sv/main.go
index f60a3ab..cb1e264 100644
--- a/cmd/git-sv/main.go
+++ b/cmd/git-sv/main.go
@@ -43,6 +43,12 @@ func main() {
 			Usage:   "generate release notes",
 			Action:  releaseNotesHandler(git, semverProcessor, releasenotesProcessor),
 		},
+		{
+			Name:    "tag",
+			Aliases: []string{"tg"},
+			Usage:   "generate tag with version based on git commit messages",
+			Action:  tagHandler(git, semverProcessor, releasenotesProcessor),
+		},
 	}
 
 	apperr := app.Run(os.Args)
diff --git a/sv/git.go b/sv/git.go
index 0af4296..28e7f4e 100644
--- a/sv/git.go
+++ b/sv/git.go
@@ -73,9 +73,16 @@ func (g GitImpl) Log(lastTag string) ([]GitCommitLog, error) {
 
 // Tag create a git tag
 func (g GitImpl) Tag(version semver.Version) error {
+	tag := fmt.Sprintf(g.tagPattern, version.Major(), version.Minor(), version.Patch())
 	tagMsg := fmt.Sprintf("-v \"Version %d.%d.%d\"", version.Major(), version.Minor(), version.Patch())
-	cmd := exec.Command("git", "tag", "-a "+fmt.Sprintf(g.tagPattern, version.Major(), version.Minor(), version.Patch()), tagMsg)
-	return cmd.Run()
+
+	tagCommand := exec.Command("git", "tag", "-a "+tag, tagMsg)
+	if err := tagCommand.Run(); err != nil {
+		return err
+	}
+
+	pushCommand := exec.Command("git", "push", "origin", tag)
+	return pushCommand.Run()
 }
 
 func parseLogOutput(messageMetadata map[string]string, log string) []GitCommitLog {