Exemplo n.º 1
0
static int sequencer_rollback(struct replay_opts *opts)
{
	const char *filename;
	FILE *f;
	unsigned char sha1[20];
	struct strbuf buf = STRBUF_INIT;
	struct string_list merge_rr = STRING_LIST_INIT_DUP;

	if (setup_rerere(&merge_rr, 0) >= 0) {
		rerere_clear(&merge_rr);
		string_list_clear(&merge_rr, 1);
	}

	filename = git_path(SEQ_HEAD_FILE);
	f = fopen(filename, "r");
	if (!f && errno == ENOENT) {
		/*
		 * There is no multiple-cherry-pick in progress.
		 * If CHERRY_PICK_HEAD or REVERT_HEAD indicates
		 * a single-cherry-pick in progress, abort that.
		 */
		return rollback_single_pick();
	}
	if (!f)
		return error(_("cannot open %s: %s"), filename,
						strerror(errno));
	if (strbuf_getline(&buf, f, '\n')) {
		error(_("cannot read %s: %s"), filename, ferror(f) ?
			strerror(errno) : _("unexpected end of file"));
		fclose(f);
		goto fail;
	}
	fclose(f);
	if (get_sha1_hex(buf.buf, sha1) || buf.buf[40] != '\0') {
		error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"),
			filename);
		goto fail;
	}
	if (reset_for_rollback(sha1))
		goto fail;
	remove_sequencer_state();
	strbuf_release(&buf);
	return 0;
fail:
	strbuf_release(&buf);
	return -1;
}
Exemplo n.º 2
0
int sequencer_rollback(struct replay_opts *opts)
{
	FILE *f;
	unsigned char sha1[20];
	struct strbuf buf = STRBUF_INIT;

	f = fopen(git_path_head_file(), "r");
	if (!f && errno == ENOENT) {
		/*
		 * There is no multiple-cherry-pick in progress.
		 * If CHERRY_PICK_HEAD or REVERT_HEAD indicates
		 * a single-cherry-pick in progress, abort that.
		 */
		return rollback_single_pick();
	}
	if (!f)
		return error_errno(_("cannot open '%s'"), git_path_head_file());
	if (strbuf_getline_lf(&buf, f)) {
		error(_("cannot read '%s': %s"), git_path_head_file(),
		      ferror(f) ?  strerror(errno) : _("unexpected end of file"));
		fclose(f);
		goto fail;
	}
	fclose(f);
	if (get_sha1_hex(buf.buf, sha1) || buf.buf[40] != '\0') {
		error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"),
			git_path_head_file());
		goto fail;
	}
	if (is_null_sha1(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 sequencer_remove_state(opts);
fail:
	strbuf_release(&buf);
	return -1;
}