add NewestTag() and Tag.Age()

1 files changed, 58 insertions, 0 deletions

diff --git a/tagWindow.go b/tagWindow.go
index 05d9087..c630af7 100644
--- a/tagWindow.go
+++ b/tagWindow.go
@@ -5,6 +5,8 @@ import (
 	"regexp"
 	"slices"
 	"strings"
+	"sync"
+	"time"
 
 	"go.wit.com/gui"
 	"go.wit.com/log"
@@ -312,3 +314,59 @@ func (rs *RepoStatus) LocalTagExists(findname string) bool {
 	}
 	return false
 }
+
+func (t *Tag) Age() time.Duration {
+	const gitLayout = "Mon Jan 2 15:04:05 2006 -0700"
+	tagTime, _ := time.Parse(gitLayout, t.date.String())
+	return time.Since(tagTime)
+}
+
+func (t *Tag) Name() string {
+	return t.tag.String()
+}
+
+func (t *Tag) getDate() (time.Time, error) {
+	const gitLayout = "Mon Jan 2 15:04:05 2006 -0700"
+	tagTime, err := time.Parse(gitLayout, t.date.String())
+
+	if err != nil {
+		log.Log(REPOWARN, "tag date err", t.ref.String(), t.tag.String(), err)
+		return time.Now(), err
+	}
+	return tagTime, nil
+}
+
+func (rs *RepoStatus) NewestTag() *Tag {
+	var newest *Tag
+	var newestTime time.Time
+	var tagTime time.Time
+	var err error
+	var allTags []*Tag
+	var mu sync.Mutex
+
+	allTags = make([]*Tag, 0, 0)
+	junk := rs.Tags.ListAll()
+	allTags = append(allTags, junk...)
+	for _, t := range allTags {
+		mu.Lock()
+		if tagTime, err = t.getDate(); err != nil {
+			mu.Unlock()
+			continue
+		}
+
+		// log.Log(REPOWARN, "tag", t.ref.String(), t.date.String(), t.tag.String())
+		// if this is the first tag, use it
+		if newest == nil {
+			newestTime = tagTime
+			newest = t
+		}
+
+		// if the tag date is after the newest date, it's newer so use this tag
+		if tagTime.After(newestTime) {
+			newestTime = tagTime
+			newest = t
+		}
+		mu.Unlock()
+	}
+	return newest
+}