예제 #1
0
static int process_path(const char *path)
{
	int pos, len;
	struct stat st;
	const struct cache_entry *ce;

	len = strlen(path);
	if (has_symlink_leading_path(path, len))
		return error("'%s' is beyond a symbolic link", path);

	pos = cache_name_pos(path, len);
	ce = pos < 0 ? NULL : active_cache[pos];
	if (ce && ce_skip_worktree(ce)) {
		/*
		 * working directory version is assumed "good"
		 * so updating it does not make sense.
		 * On the other hand, removing it from index should work
		 */
		if (allow_remove && remove_file_from_cache(path))
			return error("%s: cannot remove from the index", path);
		return 0;
	}

	/*
	 * First things first: get the stat information, to decide
	 * what to do about the pathname!
	 */
	if (lstat(path, &st) < 0)
		return process_lstat_error(path, errno);

	if (S_ISDIR(st.st_mode))
		return process_directory(path, len, &st);

	return add_one_path(ce, path, len, &st);
}
예제 #2
0
/*
 * Handle a path that was a directory. Four cases:
 *
 *  - it's already a gitlink in the index, and we keep it that
 *    way, and update it if we can (if we cannot find the HEAD,
 *    we're going to keep it unchanged in the index!)
 *
 *  - it's a *file* in the index, in which case it should be
 *    removed as a file if removal is allowed, since it doesn't
 *    exist as such any more. If removal isn't allowed, it's
 *    an error.
 *
 *    (NOTE! This is old and arguably fairly strange behaviour.
 *    We might want to make this an error unconditionally, and
 *    use "--force-remove" if you actually want to force removal).
 *
 *  - it used to exist as a subdirectory (ie multiple files with
 *    this particular prefix) in the index, in which case it's wrong
 *    to try to update it as a directory.
 *
 *  - it doesn't exist at all in the index, but it is a valid
 *    git directory, and it should be *added* as a gitlink.
 */
static int process_directory(const char *path, int len, struct stat *st)
{
	unsigned char sha1[20];
	int pos = cache_name_pos(path, len);

	/* Exact match: file or existing gitlink */
	if (pos >= 0) {
		const struct cache_entry *ce = active_cache[pos];
		if (S_ISGITLINK(ce->ce_mode)) {

			/* Do nothing to the index if there is no HEAD! */
			if (resolve_gitlink_ref(path, "HEAD", sha1) < 0)
				return 0;

			return add_one_path(ce, path, len, st);
		}
		/* Should this be an unconditional error? */
		return remove_one_path(path);
	}

	/* Inexact match: is there perhaps a subdirectory match? */
	pos = -pos-1;
	while (pos < active_nr) {
		const struct cache_entry *ce = active_cache[pos++];

		if (strncmp(ce->name, path, len))
			break;
		if (ce->name[len] > '/')
			break;
		if (ce->name[len] < '/')
			continue;

		/* Subdirectory match - error out */
		return error("%s: is a directory - add individual files instead", path);
	}

	/* No match - should we add it as a gitlink? */
	if (!resolve_gitlink_ref(path, "HEAD", sha1))
		return add_one_path(NULL, path, len, st);

	/* Error out. */
	return error("%s: is a directory - add files inside instead", path);
}
예제 #3
0
/*
 * Process a regular file
 */
static int process_file(const char *path, int len, struct stat *st)
{
	int pos = cache_name_pos(path, len);
	struct cache_entry *ce = pos < 0 ? NULL : active_cache[pos];

	if (ce && S_ISGITLINK(ce->ce_mode))
		return error("%s is already a gitlink, not replacing", path);

	return add_one_path(ce, path, len, st);
}