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authorØystein Walle <oystwa@gmail.com>2025-06-10 00:10:55 +0200
committerJunio C Hamano <gitster@pobox.com>2025-06-09 15:56:57 -0700
commitade14bffd71b75974492cf7afc525b8feb8a70b2 (patch)
treed2e64e41573a6ccb80e351b94d8b71c760a4eb1c
parentd50a5e8939abfc07c2ff97ae72e9330939b36ee0 (diff)
downloadgit-ade14bffd71b75974492cf7afc525b8feb8a70b2.tar.gz
rebase: write script before initializing state
If rebase.instructionFormat is invalid the repository is left in a strange state when the interactive rebase fails. `git status` outputs boths the same as it would in the normal case *and* something related to interactive rebase: $ git -c rebase.instructionFormat=blah rebase -i fatal: invalid --pretty format: blah $ git status On branch master Your branch is ahead of 'upstream/master' by 1 commit. (use "git push" to publish your local commits) git-rebase-todo is missing. No commands done. No commands remaining. You are currently editing a commit while rebasing branch 'master' on '8db3019401'. (use "git commit --amend" to amend the current commit) (use "git rebase --continue" once you are satisfied with your changes) By attempting to write the rebase script before initializing the state this potential scenario is avoided. Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/rebase.c42
-rwxr-xr-xt/t3415-rebase-autosquash.sh10
2 files changed, 31 insertions, 21 deletions
diff --git a/builtin/rebase.c b/builtin/rebase.c
index d4715ed35d..06da8e4f36 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -292,15 +292,6 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
&revisions, &shortrevisions))
goto cleanup;
- if (init_basic_state(&replay,
- opts->head_name ? opts->head_name : "detached HEAD",
- opts->onto, &opts->orig_head->object.oid))
- goto cleanup;
-
- if (!opts->upstream && opts->squash_onto)
- write_file(path_squash_onto(), "%s\n",
- oid_to_hex(opts->squash_onto));
-
strvec_pushl(&make_script_args, "", revisions, NULL);
if (opts->restrict_revision)
strvec_pushf(&make_script_args, "^%s",
@@ -309,21 +300,30 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
ret = sequencer_make_script(the_repository, &todo_list.buf,
make_script_args.nr, make_script_args.v,
flags);
-
- if (ret)
+ if (ret) {
error(_("could not generate todo list"));
- else {
- discard_index(the_repository->index);
- if (todo_list_parse_insn_buffer(the_repository, &replay,
- todo_list.buf.buf, &todo_list))
- BUG("unusable todo list");
-
- ret = complete_action(the_repository, &replay, flags,
- shortrevisions, opts->onto_name, opts->onto,
- &opts->orig_head->object.oid, &opts->exec,
- opts->autosquash, opts->update_refs, &todo_list);
+ goto cleanup;
}
+ if (init_basic_state(&replay,
+ opts->head_name ? opts->head_name : "detached HEAD",
+ opts->onto, &opts->orig_head->object.oid))
+ goto cleanup;
+
+ if (!opts->upstream && opts->squash_onto)
+ write_file(path_squash_onto(), "%s\n",
+ oid_to_hex(opts->squash_onto));
+
+ discard_index(the_repository->index);
+ if (todo_list_parse_insn_buffer(the_repository, &replay,
+ todo_list.buf.buf, &todo_list))
+ BUG("unusable todo list");
+
+ ret = complete_action(the_repository, &replay, flags,
+ shortrevisions, opts->onto_name, opts->onto,
+ &opts->orig_head->object.oid, &opts->exec,
+ opts->autosquash, opts->update_refs, &todo_list);
+
cleanup:
replay_opts_release(&replay);
free(revisions);
diff --git a/t/t3415-rebase-autosquash.sh b/t/t3415-rebase-autosquash.sh
index fcc40d6fe1..d4c624b841 100755
--- a/t/t3415-rebase-autosquash.sh
+++ b/t/t3415-rebase-autosquash.sh
@@ -394,6 +394,16 @@ test_expect_success 'autosquash with empty custom instructionFormat' '
)
'
+test_expect_success 'autosquash with invalid custom instructionFormat' '
+ git reset --hard base &&
+ test_commit invalid-instructionFormat-test &&
+ (
+ test_must_fail git -c rebase.instructionFormat=blah \
+ rebase --autosquash --force-rebase -i HEAD^ &&
+ test_path_is_missing .git/rebase-merge
+ )
+'
+
set_backup_editor () {
write_script backup-editor.sh <<-\EOF
cp "$1" .git/backup-"$(basename "$1")"