From: Shawn O. Pearce <spearce@spearce.org>
Date: Sun, 24 Feb 2008 08:07:33 +0000 (-0500)
Subject: Use git-describe --exact-match in bash prompt on detached HEAD
X-Git-Tag: v1.5.5-rc0~145^2
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=27c578885a0b8f56430c5a24f558e2b45cf04a38;p=git.git

Use git-describe --exact-match in bash prompt on detached HEAD

Most of the time when I am on a detached HEAD and I am not doing
a rebase or bisect operation the working directory is sitting on a
tagged release of the repository.  Showing the tag name instead of
the commit SHA-1 is much more descriptive and a much better reminder
of the state of this working directory.

Now that git-describe --exact-match is available as a cheap means
of obtaining the exact annotated tag or nothing at all, we can
favor the annotated tag name over the abbreviated commit SHA-1.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 4ea727b14..8722a6879 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -91,7 +91,10 @@ __git_ps1 ()
 			fi
 			if ! b="$(git symbolic-ref HEAD 2>/dev/null)"
 			then
-				b="$(cut -c1-7 $g/HEAD)..."
+				if ! b="$(git describe --exact-match HEAD 2>/dev/null)"
+				then
+					b="$(cut -c1-7 $g/HEAD)..."
+				fi
 			fi
 		fi