static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo")
static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts")
static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
+static GIT_PATH_FUNC(git_path_abort_safety_file, "sequencer/abort-safety")
/*
* A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
}
if (append_eol && write(msg_fd, "\n", 1) < 0) {
rollback_lock_file(&msg_file);
- return error_errno(_("could not write eol to '%s"), filename);
+ return error_errno(_("could not write eol to '%s'"), filename);
}
if (commit_lock_file(&msg_file) < 0) {
rollback_lock_file(&msg_file);
return -1;
}
+static void update_abort_safety_file(void)
+{
+ struct object_id head;
+
+ /* Do nothing on a single-pick */
+ if (!file_exists(git_path_seq_dir()))
+ return;
+
+ if (!get_oid("HEAD", &head))
+ write_file(git_path_abort_safety_file(), "%s", oid_to_hex(&head));
+ else
+ write_file(git_path_abort_safety_file(), "%s", "");
+}
+
static int fast_forward_to(const unsigned char *to, const unsigned char *from,
int unborn, struct replay_opts *opts)
{
strbuf_release(&sb);
strbuf_release(&err);
ref_transaction_free(transaction);
+ update_abort_safety_file();
return 0;
}
static const char *command_to_string(const enum todo_command command)
{
- if (command < ARRAY_SIZE(todo_command_strings))
+ if ((size_t)command < ARRAY_SIZE(todo_command_strings))
return todo_command_strings[command];
die("Unknown command: %d", command);
}
leave:
free_message(commit, &msg);
+ update_abort_safety_file();
return res;
}
return 0;
}
+static int rollback_is_safe(void)
+{
+ struct strbuf sb = STRBUF_INIT;
+ struct object_id expected_head, actual_head;
+
+ if (strbuf_read_file(&sb, git_path_abort_safety_file(), 0) >= 0) {
+ strbuf_trim(&sb);
+ if (get_oid_hex(sb.buf, &expected_head)) {
+ strbuf_release(&sb);
+ die(_("could not parse %s"), git_path_abort_safety_file());
+ }
+ strbuf_release(&sb);
+ }
+ else if (errno == ENOENT)
+ oidclr(&expected_head);
+ else
+ die_errno(_("could not read '%s'"), git_path_abort_safety_file());
+
+ if (get_oid("HEAD", &actual_head))
+ oidclr(&actual_head);
+
+ return !oidcmp(&actual_head, &expected_head);
+}
+
static int reset_for_rollback(const unsigned char *sha1)
{
const char *argv[4]; /* reset --merge <arg> + NULL */
+
argv[0] = "reset";
argv[1] = "--merge";
argv[2] = sha1_to_hex(sha1);
error(_("cannot abort from a branch yet to be born"));
goto fail;
}
+
+ if (!rollback_is_safe()) {
+ /* Do not error, just do not rollback */
+ warning(_("You seem to have moved HEAD. "
+ "Not rewinding, check your HEAD!"));
+ } else
if (reset_for_rollback(sha1))
goto fail;
strbuf_release(&buf);
return -1;
if (save_opts(opts))
return -1;
+ update_abort_safety_file();
res = pick_commits(&todo_list, opts);
todo_list_release(&todo_list);
return res;