Function read_directory

dir.c:3135–3184

}

int read_directory(struct dir_struct *dir, struct index_state *istate,
		   const char *path, int len, const struct pathspec *pathspec)
{
	struct untracked_cache_dir *untracked;

	trace2_region_enter("dir", "read_directory", istate->repo);
	dir->internal.visited_paths = 0;
	dir->internal.visited_directories = 0;

	if (has_symlink_leading_path(path, len)) {
		trace2_region_leave("dir", "read_directory", istate->repo);
		return dir->nr;
	}

	untracked = validate_untracked_cache(dir, len, pathspec, istate);
	if (!untracked)
		/*
		 * make sure untracked cache code path is disabled,
		 * e.g. prep_exclude()
		 */
		dir->untracked = NULL;
	if (!len || treat_leading_path(dir, istate, path, len, pathspec))
		read_directory_recursive(dir, istate, path, len, untracked, 0, 0, pathspec);
	QSORT(dir->entries, dir->nr, cmp_dir_entry);
	QSORT(dir->ignored, dir->ignored_nr, cmp_dir_entry);

	emit_traversal_statistics(dir, istate->repo, path, len);

	trace2_region_leave("dir", "read_directory", istate->repo);
	if (dir->untracked) {
		static int force_untracked_cache = -1;

		if (force_untracked_cache < 0)
			force_untracked_cache =
				git_env_bool("GIT_FORCE_UNTRACKED_CACHE", -1);
		if (force_untracked_cache < 0)
			force_untracked_cache = (istate->repo->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE);
		if (force_untracked_cache &&
			dir->untracked == istate->untracked &&
		    (dir->untracked->dir_opened ||
		     dir->untracked->gitignore_invalidated ||
		     dir->untracked->dir_invalidated))
			istate->cache_changed |= UNTRACKED_CHANGED;
		if (dir->untracked != istate->untracked) {
			FREE_AND_NULL(dir->untracked);
		}
	}

	return dir->nr;
}

int file_exists(const char *f)
{