# 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 > "$tempdir"/backup-refs
+git for-each-ref > "$tempdir"/backup-refs || exit
while read sha1 type name
do
case "$force,$name" in
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 "$@" |
-sed -e '/^^/d' >"$tempdir"/heads
+git rev-parse --no-flags --revs-only --symbolic-full-name \
+ --default HEAD "$@" > "$tempdir"/raw-heads || exit
+sed -e '/^^/d' "$tempdir"/raw-heads >"$tempdir"/heads
test -s "$tempdir"/heads ||
die "Which ref do you want to rewrite?"
export GIT_INDEX_FILE
git read-tree || die "Could not seed the index"
-ret=0
-
# map old->new commit ids for rewriting parents
mkdir ../map || die "Could not create map/ directory"
die "tree filter failed: $filter_tree"
(
- git diff-index -r --name-only $commit
+ git diff-index -r --name-only $commit &&
git ls-files --others
- ) |
- git update-index --add --replace --remove --stdin
+ ) > "$tempdir"/tree-state || exit
+ git update-index --add --replace --remove --stdin \
+ < "$tempdir"/tree-state || exit
fi
eval "$filter_index" < /dev/null ||
eval "$filter_msg" > ../message ||
die "msg filter failed: $filter_msg"
@SHELL_PATH@ -c "$filter_commit" "git commit-tree" \
- $(git write-tree) $parentstr < ../message > ../map/$commit
+ $(git write-tree) $parentstr < ../message > ../map/$commit ||
+ die "could not write rewritten commit"
done <../revs
# In case of a subdirectory filter, it is possible that a specified head
die "Could not rewrite $ref"
;;
esac
- git update-ref -m "filter-branch: backup" "$orig_namespace$ref" $sha1
+ git update-ref -m "filter-branch: backup" "$orig_namespace$ref" $sha1 ||
+ exit
done < "$tempdir"/heads
# TODO: This should possibly go, with the semantics that all positive given
}
if [ "$(is_bare_repository)" = false ]; then
- git read-tree -u -m HEAD
+ git read-tree -u -m HEAD || exit
fi
-exit $ret
+exit 0