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

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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>
This commit is contained in:
Shawn O. Pearce 2008-02-24 03:07:33 -05:00 committed by Junio C Hamano
parent 2c33f75754
commit 27c578885a
1 changed files with 4 additions and 1 deletions
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3
contrib/completion/git-completion.bash
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@ -90,10 +90,13 @@ __git_ps1 ()
r="|BISECTING"
fi
if ! b="$(git symbolic-ref HEAD 2>/dev/null)"
then
if ! b="$(git describe --exact-match HEAD 2>/dev/null)"
then
b="$(cut -c1-7 $g/HEAD)..."
fi
fi
fi
if [ -n "$1" ]; then
printf "$1" "${b##refs/heads/}$r"