From e5dd864adfeb8b0176b31a132e972d7f7beff32a Mon Sep 17 00:00:00 2001
From: Ted Pavlic <ted@tedpavlic.com>
Date: Wed, 11 Feb 2009 13:03:25 -0500
Subject: [PATCH] completion: Better __git_ps1 support when not in working
directory
If .git/HEAD is not readable, __git_ps1 does nothing.
If --is-in-git-dir, __git_ps1 returns " (GIT_DIR!)" as a cautionary
note. The previous behavior would show the branch name (and would
optionally attempt to determine the dirtyState of the directory, which
was impossible because a "git diff" was used).
If --is-in-work-tree, __git_ps1 returns the branch name. Additionally,
if showDirtyState is on, the dirty state is displayed.
Signed-off-by: Ted Pavlic <ted@tedpavlic.com>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
contrib/completion/git-completion.bash | 36 ++++++++++++++++----------
1 file changed, 22 insertions(+), 14 deletions(-)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index c61576fcafc..aa8eec24d98 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -108,7 +108,9 @@ __git_ps1 ()
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")..."
+ if [ -r "$g/HEAD" ]; then
+ b="$(cut -c1-7 "$g/HEAD")..."
+ fi
fi
fi
fi
@@ -116,23 +118,29 @@ __git_ps1 ()
local w
local i
- if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
- if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
- git diff --no-ext-diff --ignore-submodules \
- --quiet --exit-code || w="*"
- if git rev-parse --quiet --verify HEAD >/dev/null; then
- git diff-index --cached --quiet \
- --ignore-submodules HEAD -- || i="+"
- else
- i="#"
+ if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
+ b="GIT_DIR!"
+ elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
+ if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
+ if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
+ git diff --no-ext-diff --ignore-submodules \
+ --quiet --exit-code || w="*"
+ if git rev-parse --quiet --verify HEAD >/dev/null; then
+ git diff-index --cached --quiet \
+ --ignore-submodules HEAD -- || i="+"
+ else
+ i="#"
+ fi
fi
fi
fi
- if [ -n "${1-}" ]; then
- printf "$1" "${b##refs/heads/}$w$i$r"
- else
- printf " (%s)" "${b##refs/heads/}$w$i$r"
+ if [ -n "$b" ]; then
+ if [ -n "${1-}" ]; then
+ printf "$1" "${b##refs/heads/}$w$i$r"
+ else
+ printf " (%s)" "${b##refs/heads/}$w$i$r"
+ fi
fi
fi
}