The improved error handling catches a bug in filter-branch when using
-d pointing to a path outside any git repository:
$ mkdir foo
$ cd foo
$ git init
$ touch bar
$ git add bar
$ git commit -m bar
$ cd ..
$ git clone --bare foo
$ cd foo.git
$ git filter-branch -d /tmp/filter master
fatal: Not a git repository (or any of the parent directories): .git
This error message comes from git for-each-ref in line 224. GIT_DIR is
set correctly by git-sh-setup (to the foo.git repository), but not
exported (yet).
---
The tests copies backup-ref into another directory and checks
that it contains a branch from the rewritten repository.
git-filter-branch.sh | 12 ++++++------
t/t7003-filter-branch.sh | 9 +++++++++
2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 27b57b8..9a09ba1 100755
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -220,6 +220,12 @@ die ""
# Remove tempdir on exit
trap 'cd ../..; rm -rf "$tempdir"' 0
+ORIG_GIT_DIR="$GIT_DIR"
+ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
+ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE"
+GIT_WORK_TREE=.
+export GIT_DIR GIT_WORK_TREE
+
# Make sure refs/original is empty
git for-each-ref > "$tempdir"/backup-refs || exit
while read sha1 type name
@@ -234,12 +240,6 @@ do
esac
done < "$tempdir"/backup-refs
-ORIG_GIT_DIR="$GIT_DIR"
-ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
-ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE"
-GIT_WORK_TREE=.
-export GIT_DIR GIT_WORK_TREE
-
# The refs should be updated if their heads were rewritten
git rev-parse --no-flags --revs-only --symbolic-full-name \
--default HEAD "$@" > "$tempdir"/raw-heads || exit
diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index 56b5ecc..446700b 100755
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh
@@ -48,6 +48,15 @@ test_expect_success 'result is really identical' '
test $H = $(git rev-parse HEAD)
'
+TRASHDIR=$(pwd)
+test_expect_success 'correct GIT_DIR while using -d' '
+ mkdir drepo && cd drepo && git init && make_commit drepo &&
+ git filter-branch -d "$TRASHDIR/dfoo" \
+ --index-filter "cp \"$TRASHDIR\"/dfoo/backup-refs \"$TRASHDIR\"" &&
+ cd .. &&
+ grep drepo "$TRASHDIR/backup-refs"
+'
+
test_expect_success 'Fail if commit filter fails' '
test_must_fail git filter-branch -f --commit-filter "exit 1" HEAD
'
--
1.6.1.3
--
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