Improve SyncMirrors logging (#19045)

Yet another issue has come up where the logging from SyncMirrors does not provide
enough context. This PR adds more context to these logging events.

Related #19038

Signed-off-by: Andrew Thornton <art27@cantab.net>

modules/lfs/pointer.go

@@ -14,6 +14,8 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
+
+	"code.gitea.io/gitea/modules/log"
 )
 
 const (
@@ -111,6 +113,17 @@ func (p Pointer) RelativePath() string {
 	return path.Join(p.Oid[0:2], p.Oid[2:4], p.Oid[4:])
 }
 
+// ColorFormat provides a basic color format for a Team
+func (p Pointer) ColorFormat(s fmt.State) {
+	if p.Oid == "" && p.Size == 0 {
+		log.ColorFprintf(s, "<empty>")
+		return
+	}
+	log.ColorFprintf(s, "%s:%d",
+		log.NewColoredIDValue(p.Oid),
+		p.Size)
+}
+
 // GeneratePointer generates a pointer for arbitrary content
 func GeneratePointer(content io.Reader) (Pointer, error) {
 	h := sha256.New()