Function read_bundle_header_fd

bundle.c:77–151

}

int read_bundle_header_fd(int fd, struct bundle_header *header,
			  const char *report_path)
{
	struct strbuf buf = STRBUF_INIT;
	int status = 0;

	/* The bundle header begins with the signature */
	if (strbuf_getwholeline_fd(&buf, fd, '\n') ||
	    parse_bundle_signature(header, buf.buf)) {
		if (report_path)
			error(_("'%s' does not look like a v2 or v3 bundle file"),
			      report_path);
		status = -1;
		goto abort;
	}

	/*
	 * The default hash format for bundles is SHA1, unless told otherwise
	 * by an "object-format=" capability, which is being handled in
	 * `parse_capability()`.
	 */
	header->hash_algo = &hash_algos[GIT_HASH_SHA1_LEGACY];

	/* The bundle header ends with an empty line */
	while (!strbuf_getwholeline_fd(&buf, fd, '\n') &&
	       buf.len && buf.buf[0] != '\n') {
		struct object_id oid;
		int is_prereq = 0;
		const char *p;

		strbuf_rtrim(&buf);

		if (header->version == 3 && *buf.buf == '@') {
			if (parse_capability(header, buf.buf + 1)) {
				status = -1;
				break;
			}
			continue;
		}

		if (*buf.buf == '-') {
			is_prereq = 1;
			strbuf_remove(&buf, 0, 1);
		}

		/*
		 * Tip lines have object name, SP, and refname.
		 * Prerequisites have object name that is optionally
		 * followed by SP and subject line.
		 */
		if (parse_oid_hex_algop(buf.buf, &oid, &p, header->hash_algo) ||
		    (*p && !isspace(*p)) ||
		    (!is_prereq && !*p)) {
			if (report_path)
				error(_("unrecognized header: %s%s (%d)"),
				      (is_prereq ? "-" : ""), buf.buf, (int)buf.len);
			status = -1;
			break;