* GIT_AUTHOR_DATE='$author_date'
*
* where $author_name, $author_email and $author_date are quoted. We are strict
- * with our parsing, as the file was meant to be eval'd in the old
+ * with our parsing, as the file was meant to be eval'd in the now-removed
* git-am.sh/git-rebase--interactive.sh scripts, and thus if the file differs
* from what this function expects, it is better to bail out than to do
* something that the user does not expect.
return todo_list->buf.buf + item->arg_offset;
}
+static int is_command(enum todo_command command, const char **bol)
+{
+ const char *str = todo_command_info[command].str;
+ const char nick = todo_command_info[command].c;
+ const char *p = *bol + 1;
+
+ return skip_prefix(*bol, str, bol) ||
+ ((nick && **bol == nick) &&
+ (*p == ' ' || *p == '\t' || *p == '\n' || *p == '\r' || !*p) &&
+ (*bol = p));
+}
+
static int parse_insn_line(struct repository *r, struct todo_item *item,
const char *buf, const char *bol, char *eol)
{
}
for (i = 0; i < TODO_COMMENT; i++)
- if (skip_prefix(bol, todo_command_info[i].str, &bol)) {
- item->command = i;
- break;
- } else if ((bol + 1 == eol || bol[1] == ' ') &&
- *bol == todo_command_info[i].c) {
- bol++;
+ if (is_command(i, &bol)) {
item->command = i;
break;
}
int sequencer_get_last_command(struct repository *r, enum replay_action *action)
{
- struct todo_item item;
- char *eol;
- const char *todo_file;
+ const char *todo_file, *bol;
struct strbuf buf = STRBUF_INIT;
- int ret = -1;
+ int ret = 0;
todo_file = git_path_todo_file();
if (strbuf_read_file(&buf, todo_file, 0) < 0) {
- if (errno == ENOENT)
+ if (errno == ENOENT || errno == ENOTDIR)
return -1;
else
return error_errno("unable to open '%s'", todo_file);
}
- eol = strchrnul(buf.buf, '\n');
- if (buf.buf != eol && eol[-1] == '\r')
- eol--; /* strip Carriage Return */
- if (parse_insn_line(r, &item, buf.buf, buf.buf, eol))
- goto fail;
- if (item.command == TODO_PICK)
+ bol = buf.buf + strspn(buf.buf, " \t\r\n");
+ if (is_command(TODO_PICK, &bol) && (*bol == ' ' || *bol == '\t'))
*action = REPLAY_PICK;
- else if (item.command == TODO_REVERT)
+ else if (is_command(TODO_REVERT, &bol) &&
+ (*bol == ' ' || *bol == '\t'))
*action = REPLAY_REVERT;
else
- goto fail;
-
- ret = 0;
+ ret = -1;
- fail:
strbuf_release(&buf);
return ret;
return ret;
}
-void sequencer_post_commit_cleanup(struct repository *r)
+void sequencer_post_commit_cleanup(struct repository *r, int verbose)
{
struct replay_opts opts = REPLAY_OPTS_INIT;
int need_cleanup = 0;
if (file_exists(git_path_cherry_pick_head(r))) {
- unlink(git_path_cherry_pick_head(r));
+ if (!unlink(git_path_cherry_pick_head(r)) && verbose)
+ warning(_("cancelling a cherry picking in progress"));
opts.action = REPLAY_PICK;
need_cleanup = 1;
}
if (file_exists(git_path_revert_head(r))) {
- unlink(git_path_revert_head(r));
+ if (!unlink(git_path_revert_head(r)) && verbose)
+ warning(_("cancelling a revert in progress"));
opts.action = REPLAY_REVERT;
need_cleanup = 1;
}
return 0;
}
-static int create_seq_dir(void)
+static int create_seq_dir(struct repository *r)
{
- if (file_exists(git_path_seq_dir())) {
- error(_("a cherry-pick or revert is already in progress"));
- advise(_("try \"git cherry-pick (--continue | --quit | --abort)\""));
+ enum replay_action action;
+ const char *in_progress_error = NULL;
+ const char *in_progress_advice = NULL;
+ unsigned int advise_skip = file_exists(git_path_revert_head(r)) ||
+ file_exists(git_path_cherry_pick_head(r));
+
+ if (!sequencer_get_last_command(r, &action)) {
+ switch (action) {
+ case REPLAY_REVERT:
+ in_progress_error = _("revert is already in progress");
+ in_progress_advice =
+ _("try \"git revert (--continue | %s--abort | --quit)\"");
+ break;
+ case REPLAY_PICK:
+ in_progress_error = _("cherry-pick is already in progress");
+ in_progress_advice =
+ _("try \"git cherry-pick (--continue | %s--abort | --quit)\"");
+ break;
+ default:
+ BUG("unexpected action in create_seq_dir");
+ }
+ }
+ if (in_progress_error) {
+ error("%s", in_progress_error);
+ if (advice_sequencer_in_use)
+ advise(in_progress_advice,
+ advise_skip ? "--skip | " : "");
return -1;
- } else if (mkdir(git_path_seq_dir(), 0777) < 0)
+ }
+ if (mkdir(git_path_seq_dir(), 0777) < 0)
return error_errno(_("could not create sequencer directory '%s'"),
git_path_seq_dir());
+
return 0;
}
return oideq(&actual_head, &expected_head);
}
-static int reset_for_rollback(const struct object_id *oid)
+static int reset_merge(const struct object_id *oid)
{
- const char *argv[4]; /* reset --merge <arg> + NULL */
+ int ret;
+ struct argv_array argv = ARGV_ARRAY_INIT;
- argv[0] = "reset";
- argv[1] = "--merge";
- argv[2] = oid_to_hex(oid);
- argv[3] = NULL;
- return run_command_v_opt(argv, RUN_GIT_CMD);
+ argv_array_pushl(&argv, "reset", "--merge", NULL);
+
+ if (!is_null_oid(oid))
+ argv_array_push(&argv, oid_to_hex(oid));
+
+ ret = run_command_v_opt(argv.argv, RUN_GIT_CMD);
+ argv_array_clear(&argv);
+
+ return ret;
}
static int rollback_single_pick(struct repository *r)
return error(_("cannot resolve HEAD"));
if (is_null_oid(&head_oid))
return error(_("cannot abort from a branch yet to be born"));
- return reset_for_rollback(&head_oid);
+ return reset_merge(&head_oid);
+}
+
+static int skip_single_pick(void)
+{
+ struct object_id head;
+
+ if (read_ref_full("HEAD", 0, &head, NULL))
+ return error(_("cannot resolve HEAD"));
+ return reset_merge(&head);
}
int sequencer_rollback(struct repository *r, struct replay_opts *opts)
warning(_("You seem to have moved HEAD. "
"Not rewinding, check your HEAD!"));
} else
- if (reset_for_rollback(&oid))
+ if (reset_merge(&oid))
goto fail;
strbuf_release(&buf);
return sequencer_remove_state(opts);
return -1;
}
+int sequencer_skip(struct repository *r, struct replay_opts *opts)
+{
+ enum replay_action action = -1;
+ sequencer_get_last_command(r, &action);
+
+ /*
+ * Check whether the subcommand requested to skip the commit is actually
+ * in progress and that it's safe to skip the commit.
+ *
+ * opts->action tells us which subcommand requested to skip the commit.
+ * If the corresponding .git/<ACTION>_HEAD exists, we know that the
+ * action is in progress and we can skip the commit.
+ *
+ * Otherwise we check that the last instruction was related to the
+ * particular subcommand we're trying to execute and barf if that's not
+ * the case.
+ *
+ * Finally we check that the rollback is "safe", i.e., has the HEAD
+ * moved? In this case, it doesn't make sense to "reset the merge" and
+ * "skip the commit" as the user already handled this by committing. But
+ * we'd not want to barf here, instead give advice on how to proceed. We
+ * only need to check that when .git/<ACTION>_HEAD doesn't exist because
+ * it gets removed when the user commits, so if it still exists we're
+ * sure the user can't have committed before.
+ */
+ switch (opts->action) {
+ case REPLAY_REVERT:
+ if (!file_exists(git_path_revert_head(r))) {
+ if (action != REPLAY_REVERT)
+ return error(_("no revert in progress"));
+ if (!rollback_is_safe())
+ goto give_advice;
+ }
+ break;
+ case REPLAY_PICK:
+ if (!file_exists(git_path_cherry_pick_head(r))) {
+ if (action != REPLAY_PICK)
+ return error(_("no cherry-pick in progress"));
+ if (!rollback_is_safe())
+ goto give_advice;
+ }
+ break;
+ default:
+ BUG("unexpected action in sequencer_skip");
+ }
+
+ if (skip_single_pick())
+ return error(_("failed to skip the commit"));
+ if (!is_directory(git_path_seq_dir()))
+ return 0;
+
+ return sequencer_continue(r, opts);
+
+give_advice:
+ error(_("there is nothing to skip"));
+
+ if (advice_resolve_conflict) {
+ advise(_("have you committed already?\n"
+ "try \"git %s --continue\""),
+ action == REPLAY_REVERT ? "revert" : "cherry-pick");
+ }
+ return -1;
+}
+
static int save_todo(struct todo_list *todo_list, struct replay_opts *opts)
{
struct lock_file todo_lock = LOCK_INIT;
return error_resolve_conflict(_(action_name(opts)));
}
- if (!fill_tree_descriptor(&desc, &oid)) {
+ if (!fill_tree_descriptor(r, &desc, &oid)) {
error(_("failed to find tree of %s"), oid_to_hex(&oid));
rollback_lock_file(&lock);
free((void *)desc.buffer);
struct commit *head_commit, *merge_commit, *i;
struct commit_list *bases, *j, *reversed = NULL;
struct commit_list *to_merge = NULL, **tail = &to_merge;
+ const char *strategy = !opts->xopts_nr &&
+ (!opts->strategy || !strcmp(opts->strategy, "recursive")) ?
+ NULL : opts->strategy;
struct merge_options o;
int merge_arg_len, oneline_offset, can_fast_forward, ret, k;
static struct lock_file lock;
rollback_lock_file(&lock);
ret = fast_forward_to(r, &commit->object.oid,
&head_commit->object.oid, 0, opts);
+ if (flags & TODO_EDIT_MERGE_MSG) {
+ run_commit_flags |= AMEND_MSG;
+ goto fast_forward_edit;
+ }
goto leave_merge;
}
- if (to_merge->next) {
+ if (strategy || to_merge->next) {
/* Octopus merge */
struct child_process cmd = CHILD_PROCESS_INIT;
cmd.git_cmd = 1;
argv_array_push(&cmd.args, "merge");
argv_array_push(&cmd.args, "-s");
- argv_array_push(&cmd.args, "octopus");
+ if (!strategy)
+ argv_array_push(&cmd.args, "octopus");
+ else {
+ argv_array_push(&cmd.args, strategy);
+ for (k = 0; k < opts->xopts_nr; k++)
+ argv_array_pushf(&cmd.args,
+ "-X%s", opts->xopts[k]);
+ }
argv_array_push(&cmd.args, "--no-edit");
argv_array_push(&cmd.args, "--no-ff");
argv_array_push(&cmd.args, "--no-log");
* value (a negative one would indicate that the `merge`
* command needs to be rescheduled).
*/
+ fast_forward_edit:
ret = !!run_git_commit(r, git_path_merge_msg(r), opts,
run_commit_flags);
unlink(rebase_path_author_script());
unlink(rebase_path_stopped_sha());
unlink(rebase_path_amend());
- unlink(git_path_merge_head(the_repository));
+ unlink(git_path_merge_head(r));
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
if (item->command == TODO_BREAK) {
opts, flags))
return error(_("could not commit staged changes."));
unlink(rebase_path_amend());
- unlink(git_path_merge_head(the_repository));
+ unlink(git_path_merge_head(r));
if (final_fixup) {
unlink(rebase_path_fixup_msg());
unlink(rebase_path_squash_msg());
*/
if (walk_revs_populate_todo(&todo_list, opts) ||
- create_seq_dir() < 0)
+ create_seq_dir(r) < 0)
return -1;
if (get_oid("HEAD", &oid) && (opts->action == REPLAY_REVERT))
return error(_("can't revert as initial commit"));
{
int keep_empty = flags & TODO_LIST_KEEP_EMPTY;
int rebase_cousins = flags & TODO_LIST_REBASE_COUSINS;
+ int root_with_onto = flags & TODO_LIST_ROOT_WITH_ONTO;
struct strbuf buf = STRBUF_INIT, oneline = STRBUF_INIT;
struct strbuf label = STRBUF_INIT;
struct commit_list *commits = NULL, **tail = &commits, *iter;
if (!commit)
strbuf_addf(out, "%s %s\n", cmd_reset,
- rebase_cousins ? "onto" : "[new root]");
+ rebase_cousins || root_with_onto ?
+ "onto" : "[new root]");
else {
const char *to = NULL;