示例#1
0
文件: refs.c 项目: Jatinpurohit/git
int delete_ref(const char *refname, const unsigned char *sha1)
{
	struct ref_lock *lock;
	int err, i, ret = 0, flag = 0;

	lock = lock_ref_sha1_basic(refname, sha1, 0, &flag);
	if (!lock)
		return 1;
	if (!(flag & REF_ISPACKED)) {
		/* loose */
		i = strlen(lock->lk->filename) - 5; /* .lock */
		lock->lk->filename[i] = 0;
		err = unlink(lock->lk->filename);
		if (err) {
			ret = 1;
			error("unlink(%s) failed: %s",
			      lock->lk->filename, strerror(errno));
		}
		lock->lk->filename[i] = '.';
	}
	/* removing the loose one could have resurrected an earlier
	 * packed one.  Also, if it was not loose we need to repack
	 * without it.
	 */
	ret |= repack_without_ref(refname);

	err = unlink(git_path("logs/%s", lock->ref_name));
	if (err && errno != ENOENT)
		fprintf(stderr, "warning: unlink(%s) failed: %s",
			git_path("logs/%s", lock->ref_name), strerror(errno));
	invalidate_cached_refs();
	unlock_ref(lock);
	return ret;
}
示例#2
0
文件: refs.c 项目: ratnikov/git
int delete_ref(const char *refname, const unsigned char *sha1, int delopt)
{
	struct ref_lock *lock;
	int err, i = 0, ret = 0, flag = 0;

	lock = lock_ref_sha1_basic(refname, sha1, 0, &flag);
	if (!lock)
		return 1;
	if (!(flag & REF_ISPACKED) || flag & REF_ISSYMREF) {
		/* loose */
		const char *path;

		if (!(delopt & REF_NODEREF)) {
			i = strlen(lock->lk->filename) - 5; /* .lock */
			lock->lk->filename[i] = 0;
			path = lock->lk->filename;
		} else {
			path = git_path("%s", refname);
		}
		err = unlink_or_warn(path);
		if (err && errno != ENOENT)
			ret = 1;

		if (!(delopt & REF_NODEREF))
			lock->lk->filename[i] = '.';
	}
	/* removing the loose one could have resurrected an earlier
	 * packed one.  Also, if it was not loose we need to repack
	 * without it.
	 */
	ret |= repack_without_ref(refname);

	unlink_or_warn(git_path("logs/%s", lock->ref_name));
	invalidate_cached_refs();
	unlock_ref(lock);
	return ret;
}
示例#3
0
文件: refs.c 项目: ratnikov/git
int write_ref_sha1(struct ref_lock *lock,
	const unsigned char *sha1, const char *logmsg)
{
	static char term = '\n';
	struct object *o;

	if (!lock)
		return -1;
	if (!lock->force_write && !hashcmp(lock->old_sha1, sha1)) {
		unlock_ref(lock);
		return 0;
	}
	o = parse_object(sha1);
	if (!o) {
		error("Trying to write ref %s with nonexistant object %s",
			lock->ref_name, sha1_to_hex(sha1));
		unlock_ref(lock);
		return -1;
	}
	if (o->type != OBJ_COMMIT && is_branch(lock->ref_name)) {
		error("Trying to write non-commit object %s to branch %s",
			sha1_to_hex(sha1), lock->ref_name);
		unlock_ref(lock);
		return -1;
	}
	if (write_in_full(lock->lock_fd, sha1_to_hex(sha1), 40) != 40 ||
	    write_in_full(lock->lock_fd, &term, 1) != 1
		|| close_ref(lock) < 0) {
		error("Couldn't write %s", lock->lk->filename);
		unlock_ref(lock);
		return -1;
	}
	invalidate_cached_refs();
	if (log_ref_write(lock->ref_name, lock->old_sha1, sha1, logmsg) < 0 ||
	    (strcmp(lock->ref_name, lock->orig_ref_name) &&
	     log_ref_write(lock->orig_ref_name, lock->old_sha1, sha1, logmsg) < 0)) {
		unlock_ref(lock);
		return -1;
	}
	if (strcmp(lock->orig_ref_name, "HEAD") != 0) {
		/*
		 * Special hack: If a branch is updated directly and HEAD
		 * points to it (may happen on the remote side of a push
		 * for example) then logically the HEAD reflog should be
		 * updated too.
		 * A generic solution implies reverse symref information,
		 * but finding all symrefs pointing to the given branch
		 * would be rather costly for this rare event (the direct
		 * update of a branch) to be worth it.  So let's cheat and
		 * check with HEAD only which should cover 99% of all usage
		 * scenarios (even 100% of the default ones).
		 */
		unsigned char head_sha1[20];
		int head_flag;
		const char *head_ref;
		head_ref = resolve_ref("HEAD", head_sha1, 1, &head_flag);
		if (head_ref && (head_flag & REF_ISSYMREF) &&
		    !strcmp(head_ref, lock->ref_name))
			log_ref_write("HEAD", lock->old_sha1, sha1, logmsg);
	}
	if (commit_ref(lock)) {
		error("Couldn't set %s", lock->ref_name);
		unlock_ref(lock);
		return -1;
	}
	unlock_ref(lock);
	return 0;
}
示例#4
0
const char *git_resolve_ref(const char *ref, unsigned char *sha1, int reading, int *flag)
{
	invalidate_cached_refs();
	return resolve_ref(ref,sha1,reading, flag);
}
示例#5
0
int git_for_each_ref_in(const char * refname, each_ref_fn fn, void * data)
{
	invalidate_cached_refs();
	return for_each_ref_in(refname, fn, data);
}