Function handle_path_without_trailing_slash

fsmonitor.c:330–372

* The daemon sent an observed pathname without a trailing slash. * (This is the normal case.) We do not know if it is a tracked or * untracked file, a sparse-directory, or a populated directory (on a * platform such as Windows where FSEvents are not qualified). * * The pathname contains the observed case reported by the FS. We * do not know it is case-correct or -incorrect. * * Assume it

 * Return the number of cache-entries that we invalidated.
 */
static size_t handle_path_without_trailing_slash(
	struct index_state *istate, const char *name, int pos)
{
	/*
	 * Mark the untracked cache dirty for this path (regardless of
	 * whether or not we find an exact match for it in the index).
	 * Since the path is unqualified (no trailing slash hint in the
	 * FSEvent), it may refer to a file or directory. So we should
	 * not assume one or the other and should always let the untracked
	 * cache decide what needs to invalidated.
	 */
	untracked_cache_invalidate_trimmed_path(istate, name, 0);

	if (pos >= 0) {
		/*
		 * An exact match on a tracked file. We assume that we
		 * do not need to scan forward for a sparse-directory
		 * cache-entry with the same pathname, nor for a cone
		 * at that directory. (That is, assume no D/F conflicts.)
		 */
		invalidate_ce_fsm(istate->cache[pos]);
		return 1;
	} else {
		size_t nr_in_cone;
		struct strbuf work_path = STRBUF_INIT;

		/*
		 * The negative "pos" gives us the suggested insertion
		 * point for the pathname (without the trailing slash).
		 * We need to see if there is a directory with that
		 * prefix, but there can be lots of pathnames between
		 * "foo" and "foo/" like "foo-" or "foo-bar", so we
		 * don't want to do our own scan.
		 */
		strbuf_add(&work_path, name, strlen(name));
		strbuf_addch(&work_path, '/');
		pos = index_name_pos(istate, work_path.buf, work_path.len);
		nr_in_cone = handle_path_with_trailing_slash(
			istate, work_path.buf, pos);
		strbuf_release(&work_path);
		return nr_in_cone;
	}
}

/*
 * The daemon can decorate directory events, such as a move or rename,