git-prompt: add a describe style for any tags

Michael J Gruber · gitster · commit 9f0b4dd0b82b · 2017-03-15T13:19:41.000-07:00
git-prompt has various describe styles, among them "describe" (by
annotated tags) and "default" (by exact match with any tag).

Add a mode "tag" that describes by any tag, annotated or not.

Signed-off-by: Michael J Gruber &lt;git@drmicha.warpmail.net&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
@@ -82,6 +82,7 @@
 #     contains      relative to newer annotated tag (v1.6.3.2~35)
 #     branch        relative to newer tag or branch (master~4)
 #     describe      relative to older annotated tag (v1.6.3.1-13-gdd42c2f)
+#     tag           relative to any older tag (v1.6.3.1-13-gdd42c2f)
 #     default       exactly matching tag
 #
 # If you would like a colored hint about the current dirty state, set
@@ -443,6 +444,8 @@ __git_ps1 ()
 					git describe --contains HEAD ;;
 				(branch)
 					git describe --contains --all HEAD ;;
+				(tag)
+					git describe --tags HEAD ;;
 				(describe)
 					git describe HEAD ;;
 				(* | default)
