add NewestTag() and Tag.Age()

1 files changed, 16 insertions, 0 deletions

diff --git a/git.go b/git.go
index 5cfa9eb..c54ab8c 100644
--- a/git.go
+++ b/git.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"os/user"
 	"strings"
+	"time"
 	"unicode/utf8"
 
 	"io/ioutil"
@@ -19,6 +20,21 @@ func (rs *RepoStatus) GetCurrentBranchVersion() string {
 	return rs.currentVersion.String()
 }
 
+func (rs *RepoStatus) Age() time.Duration {
+	var t *Tag
+	t = rs.NewestTag()
+
+	if t != nil {
+		log.Log(REPO, "newest tag:", t.date.String(), t.tag.String(), t.Name())
+		return t.Age()
+	}
+
+	const gitLayout = "Mon Jan 2 15:04:05 2006 -0700"
+	const madeuptime = "Mon Jun 3 15:04:05 2013 -0700"
+	tagTime, _ := time.Parse(gitLayout, madeuptime)
+	return time.Since(tagTime)
+}
+
 /*
 // this isn't right
 func (rs *RepoStatus) LastTagAge() (time.Time, string) {