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bash: offer to show (un)staged changes

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Add a bit of code to __git_ps1 that lets it append '*' to the branch
name if there are any unstaged changes, and '+' if there are any
staged changes.

Since this is a rather expensive operation and will force a lot of
data into the cache whenever you first enter a repository, you have to
enable it manually by setting GIT_PS1_SHOWDIRTYSTATE to a nonempty
value.  The configuration variable bash.showDirtyState can then be
used to disable it again for some repositories.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Rast 2009-02-03 10:20:54 +01:00 committed by Junio C Hamano
parent e656fc97a2
commit 738a94a9f6
1 changed files with 24 additions and 2 deletions
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26
contrib/completion/git-completion.bash
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@ -34,6 +34,12 @@
# are currently in a git repository. The %s token will be
# the name of the current branch.
#
# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty
# value, unstaged (*) and staged (+) changes will be shown next
# to the branch name. You can configure this per-repository
# with the bash.showDirtyState variable, which defaults to true
# once GIT_PS1_SHOWDIRTYSTATE is enabled.
#
# To submit patches:
#
# *) Read Documentation/SubmittingPatches
@ -116,10 +122,26 @@ __git_ps1 ()
fi
fi
local w
local i
if test -n "$GIT_PS1_SHOWDIRTYSTATE"; then
if test "$(git config --bool bash.showDirtyState)" != "false"; then
git diff --no-ext-diff --ignore-submodules \
--quiet --exit-code || w="*"
if git rev-parse --quiet --verify HEAD >/dev/null; then
git diff-index --cached --quiet \
--ignore-submodules HEAD -- || i="+"
else
i="#"
fi
fi
fi
if [ -n "${1-}" ]; then
printf "$1" "${b##refs/heads/}$r"
printf "$1" "${b##refs/heads/}$w$i$r"
else
printf " (%s)" "${b##refs/heads/}$r"
printf " (%s)" "${b##refs/heads/}$w$i$r"
fi
fi
}