# "author" or "committer
set_ident () {
- lid="$(echo "$1" | tr "A-Z" "a-z")"
- uid="$(echo "$1" | tr "a-z" "A-Z")"
+ lid="$(echo "$1" | tr "[A-Z]" "[a-z]")"
+ uid="$(echo "$1" | tr "[a-z]" "[A-Z]")"
pick_id_script='
/^'$lid' /{
s/'\''/'\''\\'\'\''/g
OPTIONS_SPEC=
. git-sh-setup
-git diff-files --quiet &&
+if [ "$(is_bare_repository)" = false ]; then
+ git diff-files --quiet &&
git diff-index --cached --quiet HEAD -- ||
die "Cannot rewrite branch(es) with a dirty working directory."
+fi
tempdir=.git-rewrite
filter_env=
force=
while :
do
- test $# = 0 && usage
case "$1" in
--)
shift
workdir="$(pwd)" ||
die ""
+# Remove tempdir on exit
+trap 'cd ../..; rm -rf "$tempdir"' 0
+
# Make sure refs/original is empty
git for-each-ref > "$tempdir"/backup-refs
while read sha1 type name
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 "$@" |
+git rev-parse --no-flags --revs-only --symbolic-full-name --default HEAD "$@" |
sed -e '/^^/d' >"$tempdir"/heads
test -s "$tempdir"/heads ||
;;
*)
git rev-list --reverse --topo-order --default HEAD \
- --parents --full-history "$@" -- "$filter_subdir"
+ --parents "$@" -- "$filter_subdir"
esac > ../revs || die "Could not get the commits"
commits=$(wc -l <../revs | tr -d " ")
git read-tree -i -m $commit
;;
*)
- git read-tree -i -m $commit:"$filter_subdir"
+ # The commit may not have the subdirectory at all
+ err=$(git read-tree -i -m $commit:"$filter_subdir" 2>&1) || {
+ if ! git rev-parse --verify $commit:"$filter_subdir" 2>/dev/null
+ then
+ rm -f "$GIT_INDEX_FILE"
+ else
+ echo >&2 "$err"
+ false
+ fi
+ }
esac || die "Could not initialize the index"
GIT_COMMIT=$commit
die "Could not checkout the index"
# files that $commit removed are now still in the working tree;
# remove them, else they would be added again
- git ls-files -z --others | xargs -0 rm -f
+ git clean -d -q -f -x
eval "$filter_tree" < /dev/null ||
die "tree filter failed: $filter_tree"
- git diff-index -r $commit | cut -f 2- | tr '\012' '\000' | \
- xargs -0 git update-index --add --replace --remove
- git ls-files -z --others | \
- xargs -0 git update-index --add --replace --remove
+ (
+ git diff-index -r --name-only $commit
+ git ls-files --others
+ ) |
+ git update-index --add --replace --remove --stdin
fi
eval "$filter_index" < /dev/null ||
sed -e '1,/^$/d' <../commit | \
eval "$filter_msg" > ../message ||
die "msg filter failed: $filter_msg"
- sh -c "$filter_commit" "git commit-tree" \
+ @SHELL_PATH@ -c "$filter_commit" "git commit-tree" \
$(git write-tree) $parentstr < ../message > ../map/$commit
done <../revs
;;
$_x40)
echo "Ref '$ref' was rewritten"
- git update-ref -m "filter-branch: rewrite" \
- "$ref" $rewritten $sha1 ||
- die "Could not rewrite $ref"
+ if ! git update-ref -m "filter-branch: rewrite" \
+ "$ref" $rewritten $sha1 2>/dev/null; then
+ if test $(git cat-file -t "$ref") = tag; then
+ if test -z "$filter_tag_name"; then
+ warn "WARNING: You said to rewrite tagged commits, but not the corresponding tag."
+ warn "WARNING: Perhaps use '--tag-name-filter cat' to rewrite the tag."
+ fi
+ else
+ die "Could not rewrite $ref"
+ fi
+ fi
;;
*)
# NEEDSWORK: possibly add -Werror, making this an error
echo "$ref -> $new_ref ($sha1 -> $new_sha1)"
if [ "$type" = "tag" ]; then
- # Warn that we are not rewriting the tag object itself.
- warn "unreferencing tag object $sha1t"
+ new_sha1=$( ( printf 'object %s\ntype commit\ntag %s\n' \
+ "$new_sha1" "$new_ref"
+ git cat-file tag "$ref" |
+ sed -n \
+ -e "1,/^$/{
+ /^object /d
+ /^type /d
+ /^tag /d
+ }" \
+ -e '/^-----BEGIN PGP SIGNATURE-----/q' \
+ -e 'p' ) |
+ git mktag) ||
+ die "Could not create new tag object for $ref"
+ if git cat-file tag "$ref" | \
+ grep '^-----BEGIN PGP SIGNATURE-----' >/dev/null 2>&1
+ then
+ warn "gpg signature stripped from tag object $sha1t"
+ fi
fi
git update-ref "refs/tags/$new_ref" "$new_sha1" ||
cd ../..
rm -rf "$tempdir"
-unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE
-test -z "$ORIG_GIT_DIR" || GIT_DIR="$ORIG_GIT_DIR" && export GIT_DIR
-test -z "$ORIG_GIT_WORK_TREE" || GIT_WORK_TREE="$ORIG_GIT_WORK_TREE" &&
- export GIT_WORK_TREE
-test -z "$ORIG_GIT_INDEX_FILE" || GIT_INDEX_FILE="$ORIG_GIT_INDEX_FILE" &&
- export GIT_INDEX_FILE
-git read-tree -u -m HEAD
+trap - 0
+
+if [ "$(is_bare_repository)" = false ]; then
+ unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE
+ test -z "$ORIG_GIT_DIR" || {
+ GIT_DIR="$ORIG_GIT_DIR" && export GIT_DIR
+ }
+ test -z "$ORIG_GIT_WORK_TREE" || {
+ GIT_WORK_TREE="$ORIG_GIT_WORK_TREE" &&
+ export GIT_WORK_TREE
+ }
+ test -z "$ORIG_GIT_INDEX_FILE" || {
+ GIT_INDEX_FILE="$ORIG_GIT_INDEX_FILE" &&
+ export GIT_INDEX_FILE
+ }
+ git read-tree -u -m HEAD
+fi
exit $ret