Function read_rr

rerere.c:200–241

* $GIT_DIR/MERGE_RR file is a collection of records, each of which is * "conflict ID", a HT and pathname, terminated with a NUL, and is * used to keep track of the set of paths that "rerere" may need to * work on (i.e. what is left by the previous invocation of "git * rerere" during the current conflict resolution session). */

 * rerere" during the current conflict resolution session).
 */
static void read_rr(struct repository *r, struct string_list *rr)
{
	struct strbuf buf = STRBUF_INIT;
	FILE *in = fopen_or_warn(git_path_merge_rr(r), "r");

	if (!in)
		return;
	while (!strbuf_getwholeline(&buf, in, '\0')) {
		char *path;
		unsigned char hash[GIT_MAX_RAWSZ];
		struct rerere_id *id;
		int variant;
		const unsigned hexsz = the_hash_algo->hexsz;

		/* There has to be the hash, tab, path and then NUL */
		if (buf.len < hexsz + 2 || get_hash_hex(buf.buf, hash))
			die(_("corrupt MERGE_RR"));

		if (buf.buf[hexsz] != '.') {
			variant = 0;
			path = buf.buf + hexsz;
		} else {
			errno = 0;
			variant = strtol(buf.buf + hexsz + 1, &path, 10);
			if (errno)
				die(_("corrupt MERGE_RR"));
		}
		if (*(path++) != '\t')
			die(_("corrupt MERGE_RR"));
		buf.buf[hexsz] = '\0';
		id = new_rerere_id_hex(buf.buf);
		id->variant = variant;
		/*
		 * make sure id->collection->status has enough space
		 * for the variant we are interested in
		 */
		fit_variant(id->collection, variant);
		string_list_insert(rr, path)->util = id;
	}
	strbuf_release(&buf);
	fclose(in);
}

static struct lock_file write_lock;