Exemple #1
0
int refs_delete_ref(struct ref_store *refs, const char *msg,
		    const char *refname,
		    const unsigned char *old_sha1,
		    unsigned int flags)
{
	struct ref_transaction *transaction;
	struct strbuf err = STRBUF_INIT;

	if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
		assert(refs == get_main_ref_store());
		return delete_pseudoref(refname, old_sha1);
	}

	transaction = ref_store_transaction_begin(refs, &err);
	if (!transaction ||
	    ref_transaction_delete(transaction, refname, old_sha1,
				   flags, msg, &err) ||
	    ref_transaction_commit(transaction, &err)) {
		error("%s", err.buf);
		ref_transaction_free(transaction);
		strbuf_release(&err);
		return 1;
	}
	ref_transaction_free(transaction);
	strbuf_release(&err);
	return 0;
}
Exemple #2
0
static int packed_delete_refs(struct ref_store *ref_store, const char *msg,
			     struct string_list *refnames, unsigned int flags)
{
	struct packed_ref_store *refs =
		packed_downcast(ref_store, REF_STORE_WRITE, "delete_refs");
	struct strbuf err = STRBUF_INIT;
	struct ref_transaction *transaction;
	struct string_list_item *item;
	int ret;

	(void)refs; /* We need the check above, but don't use the variable */

	if (!refnames->nr)
		return 0;

	/*
	 * Since we don't check the references' old_oids, the
	 * individual updates can't fail, so we can pack all of the
	 * updates into a single transaction.
	 */

	transaction = ref_store_transaction_begin(ref_store, &err);
	if (!transaction)
		return -1;

	for_each_string_list_item(item, refnames) {
		if (ref_transaction_delete(transaction, item->string, NULL,
					   flags, msg, &err)) {
			warning(_("could not delete reference %s: %s"),
				item->string, err.buf);
			strbuf_reset(&err);
		}
	}

	ret = ref_transaction_commit(transaction, &err);

	if (ret) {
		if (refnames->nr == 1)
			error(_("could not delete reference %s: %s"),
			      refnames->items[0].string, err.buf);
		else
			error(_("could not delete references: %s"), err.buf);
	}

	ref_transaction_free(transaction);
	strbuf_release(&err);
	return ret;
}
Exemple #3
0
int delete_ref(const char *refname, const unsigned char *old_sha1,
	       unsigned int flags)
{
	struct ref_transaction *transaction;
	struct strbuf err = STRBUF_INIT;

	if (ref_type(refname) == REF_TYPE_PSEUDOREF)
		return delete_pseudoref(refname, old_sha1);

	transaction = ref_transaction_begin(&err);
	if (!transaction ||
	    ref_transaction_delete(transaction, refname, old_sha1,
				   flags, NULL, &err) ||
	    ref_transaction_commit(transaction, &err)) {
		error("%s", err.buf);
		ref_transaction_free(transaction);
		strbuf_release(&err);
		return 1;
	}
	ref_transaction_free(transaction);
	strbuf_release(&err);
	return 0;
}
Exemple #4
0
static const char *update(struct command *cmd, struct shallow_info *si)
{
	const char *name = cmd->ref_name;
	struct strbuf namespaced_name_buf = STRBUF_INIT;
	const char *namespaced_name, *ret;
	unsigned char *old_sha1 = cmd->old_sha1;
	unsigned char *new_sha1 = cmd->new_sha1;

	/* only refs/... are allowed */
	if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) {
		rp_error("refusing to create funny ref '%s' remotely", name);
		return "funny refname";
	}

	strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name);
	namespaced_name = strbuf_detach(&namespaced_name_buf, NULL);

	if (is_ref_checked_out(namespaced_name)) {
		switch (deny_current_branch) {
		case DENY_IGNORE:
			break;
		case DENY_WARN:
			rp_warning("updating the current branch");
			break;
		case DENY_REFUSE:
		case DENY_UNCONFIGURED:
			rp_error("refusing to update checked out branch: %s", name);
			if (deny_current_branch == DENY_UNCONFIGURED)
				refuse_unconfigured_deny();
			return "branch is currently checked out";
		case DENY_UPDATE_INSTEAD:
			ret = update_worktree(new_sha1);
			if (ret)
				return ret;
			break;
		}
	}

	if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) {
		error("unpack should have generated %s, "
		      "but I can't find it!", sha1_to_hex(new_sha1));
		return "bad pack";
	}

	if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) {
		if (deny_deletes && starts_with(name, "refs/heads/")) {
			rp_error("denying ref deletion for %s", name);
			return "deletion prohibited";
		}

		if (head_name && !strcmp(namespaced_name, head_name)) {
			switch (deny_delete_current) {
			case DENY_IGNORE:
				break;
			case DENY_WARN:
				rp_warning("deleting the current branch");
				break;
			case DENY_REFUSE:
			case DENY_UNCONFIGURED:
			case DENY_UPDATE_INSTEAD:
				if (deny_delete_current == DENY_UNCONFIGURED)
					refuse_unconfigured_deny_delete_current();
				rp_error("refusing to delete the current branch: %s", name);
				return "deletion of the current branch prohibited";
			default:
				return "Invalid denyDeleteCurrent setting";
			}
		}
	}

	if (deny_non_fast_forwards && !is_null_sha1(new_sha1) &&
	    !is_null_sha1(old_sha1) &&
	    starts_with(name, "refs/heads/")) {
		struct object *old_object, *new_object;
		struct commit *old_commit, *new_commit;

		old_object = parse_object(old_sha1);
		new_object = parse_object(new_sha1);

		if (!old_object || !new_object ||
		    old_object->type != OBJ_COMMIT ||
		    new_object->type != OBJ_COMMIT) {
			error("bad sha1 objects for %s", name);
			return "bad ref";
		}
		old_commit = (struct commit *)old_object;
		new_commit = (struct commit *)new_object;
		if (!in_merge_bases(old_commit, new_commit)) {
			rp_error("denying non-fast-forward %s"
				 " (you should pull first)", name);
			return "non-fast-forward";
		}
	}
	if (run_update_hook(cmd)) {
		rp_error("hook declined to update %s", name);
		return "hook declined";
	}

	if (is_null_sha1(new_sha1)) {
		struct strbuf err = STRBUF_INIT;
		if (!parse_object(old_sha1)) {
			old_sha1 = NULL;
			if (ref_exists(name)) {
				rp_warning("Allowing deletion of corrupt ref.");
			} else {
				rp_warning("Deleting a non-existent ref.");
				cmd->did_not_exist = 1;
			}
		}
		if (ref_transaction_delete(transaction,
					   namespaced_name,
					   old_sha1,
					   0, "push", &err)) {
			rp_error("%s", err.buf);
			strbuf_release(&err);
			return "failed to delete";
		}
		strbuf_release(&err);
		return NULL; /* good */
	}
	else {
		struct strbuf err = STRBUF_INIT;
		if (shallow_update && si->shallow_ref[cmd->index] &&
		    update_shallow_ref(cmd, si))
			return "shallow error";

		if (ref_transaction_update(transaction,
					   namespaced_name,
					   new_sha1, old_sha1,
					   0, "push",
					   &err)) {
			rp_error("%s", err.buf);
			strbuf_release(&err);

			return "failed to update ref";
		}
		strbuf_release(&err);

		return NULL; /* good */
	}
}