# a new branch. You can specify a number of filters to modify the commits,
# files and trees.
+# The following functions will also be available in the commit filter:
+
+functions=$(cat << \EOF
warn () {
echo "$*" >&2
}
fi
}
+# if you run 'skip_commit "$@"' in a commit filter, it will print
+# the (mapped) parents, effectively skipping the commit.
+
+skip_commit()
+{
+ shift;
+ while [ -n "$1" ];
+ do
+ shift;
+ map "$1";
+ shift;
+ done;
+}
+
# override die(): this version puts in an extra line break, so that
# the progress is still visible
echo "$*" >&2
exit 1
}
+EOF
+)
+
+eval "$functions"
# When piped a commit, output a script to set the ident of either
# "author" or "committer
echo "[ -n \"\$GIT_${uid}_NAME\" ] || export GIT_${uid}_NAME=\"\${GIT_${uid}_EMAIL%%@*}\""
}
-# This script can be sourced by the commit filter to get the functions
-test "a$SOURCE_FUNCTIONS" = a1 && return
-this_script="$(cd "$(dirname "$0")"; pwd)"/$(basename "$0")
-export this_script
-
USAGE="[--env-filter <command>] [--tree-filter <command>] \
[--index-filter <command>] [--parent-filter <command>] \
[--msg-filter <command>] [--commit-filter <command>] \
[--original <namespace>] [-d <directory>] [-f | --force] \
[<rev-list options>...]"
+OPTIONS_SPEC=
. git-sh-setup
+git diff-files --quiet &&
+ git diff-index --cached --quiet HEAD -- ||
+ die "Cannot rewrite branch(es) with a dirty working directory."
+
tempdir=.git-rewrite
filter_env=
filter_tree=
filter_subdir=
orig_namespace=refs/original/
force=
-while case "$#" in 0) usage;; esac
+while :
do
+ test $# = 0 && usage
case "$1" in
--)
shift
filter_msg="$OPTARG"
;;
--commit-filter)
- filter_commit='SOURCE_FUNCTIONS=1 . "$this_script";'" $OPTARG"
+ filter_commit="$functions; $OPTARG"
;;
--tag-name-filter)
filter_tag_name="$OPTARG"
esac
done < "$tempdir"/backup-refs
+ORIG_GIT_DIR="$GIT_DIR"
+ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
+ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE"
export GIT_DIR GIT_WORK_TREE=.
# These refs should be updated if their heads were rewritten
test $count -gt 0 && echo "These refs were rewritten:"
git show-ref | grep ^"$orig_namespace"
+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
+
exit $ret