test -n "$rebase_root" && root_flag=--root
+ret=0
if test -n "$keep_empty"
then
# we have to do this the hard way. git format-patch completely squashes
# itself well to recording empty patches. fortunately, cherry-pick
# makes this easy
git cherry-pick --allow-empty "$revisions"
+ ret=$?
else
+ rm -f "$GIT_DIR/rebased-patches"
+
git format-patch -k --stdout --full-index --ignore-if-in-upstream \
--src-prefix=a/ --dst-prefix=b/ \
- --no-renames $root_flag "$revisions" |
- git am $git_am_opt --rebasing --resolvemsg="$resolvemsg"
-fi && move_to_original_branch
+ --no-renames $root_flag "$revisions" >"$GIT_DIR/rebased-patches"
+ ret=$?
+
+ if test 0 != $ret
+ then
+ rm -f "$GIT_DIR/rebased-patches"
+ case "$head_name" in
+ refs/heads/*)
+ git checkout -q "$head_name"
+ ;;
+ *)
+ git checkout -q "$orig_head"
+ ;;
+ esac
+
+ cat >&2 <<-EOF
+
+ git encountered an error while preparing the patches to replay
+ these revisions:
+
+ $revisions
+
+ As a result, git cannot rebase them.
+ EOF
+ exit $?
+ fi
+
+ git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" <"$GIT_DIR/rebased-patches"
+ ret=$?
+
+ rm -f "$GIT_DIR/rebased-patches"
+fi
+
+if test 0 != $ret
+then
+ test -d "$state_dir" && write_basic_state
+ exit $ret
+fi
-ret=$?
-test 0 != $ret -a -d "$state_dir" && write_basic_state
-exit $ret
+move_to_original_branch