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authorJeff King <peff@peff.net>2013-04-02 10:22:19 -0400
committerJunio C Hamano <gitster@pobox.com>2013-04-02 13:34:55 -0700
commit97276019bb20829c97528b53dc453a37177c35bb (patch)
tree6cbc4d88a238ca033e27a81349c6e6cb620ca538
parent15999998fbda60552742275570947431b57108ae (diff)
downloadgit-97276019bb20829c97528b53dc453a37177c35bb.tar.gz
git-97276019bb20829c97528b53dc453a37177c35bb.tar.xz
filter-branch: return to original dir after filtering
The first thing filter-branch does is to create a temporary directory, either ".git-rewrite" in the current directory (which may be the working tree or the repository if bare), or in a directory specified by "-d". We then chdir to $tempdir/t as our temporary working directory in which to run tree filters. After finishing the filter, we then attempt to go back to the original directory with "cd ../..". This works in the .git-rewrite case, but if "-d" is used, we end up in a random directory. The only thing we do after this chdir is to run git-read-tree, but that means that: 1. The working directory is not updated to reflect the filtered history. 2. We dump random files into "$tempdir/.." (e.g., if you use "-d /tmp/foo", we dump junk into /tmp). Fix it by recording the full path to the original directory and returning there explicitly. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-xgit-filter-branch.sh5
-rwxr-xr-xt/t7003-filter-branch.sh14
2 files changed, 17 insertions, 2 deletions
diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 178e45305..244253653 100755
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -217,6 +217,7 @@ t)
test -d "$tempdir" &&
die "$tempdir already exists, please remove it"
esac
+orig_dir=$(pwd)
mkdir -p "$tempdir/t" &&
tempdir="$(cd "$tempdir"; pwd)" &&
cd "$tempdir/t" &&
@@ -224,7 +225,7 @@ workdir="$(pwd)" ||
die ""
# Remove tempdir on exit
-trap 'cd ../..; rm -rf "$tempdir"' 0
+trap 'cd "$orig_dir"; rm -rf "$tempdir"' 0
ORIG_GIT_DIR="$GIT_DIR"
ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
@@ -489,7 +490,7 @@ if [ "$filter_tag_name" ]; then
done
fi
-cd ../..
+cd "$orig_dir"
rm -rf "$tempdir"
trap - 0
diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index 4d13e10de..782270204 100755
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh
@@ -64,6 +64,20 @@ test_expect_success 'correct GIT_DIR while using -d' '
grep drepo "$TRASHDIR/backup-refs"
'
+test_expect_success 'tree-filter works with -d' '
+ git init drepo-tree &&
+ (
+ cd drepo-tree &&
+ test_commit one &&
+ git filter-branch -d "$TRASHDIR/dfoo" \
+ --tree-filter "echo changed >one.t" &&
+ echo changed >expect &&
+ git cat-file blob HEAD:one.t >actual &&
+ test_cmp expect actual &&
+ test_cmp one.t actual
+ )
+'
+
test_expect_success 'Fail if commit filter fails' '
test_must_fail git filter-branch -f --commit-filter "exit 1" HEAD
'