From mboxrd@z Thu Jan 1 00:00:00 1970 From: mhagger@alum.mit.edu Subject: [PATCH v2 20/51] repack_without_ref(): reimplement using do_for_each_ref_in_array() Date: Mon, 12 Dec 2011 06:38:27 +0100 Message-ID: <1323668338-1764-21-git-send-email-mhagger@alum.mit.edu> References: <1323668338-1764-1-git-send-email-mhagger@alum.mit.edu> Cc: git@vger.kernel.org, Jeff King , Drew Northup , Jakub Narebski , Heiko Voigt , Johan Herland , Julian Phillips , Michael Haggerty To: Junio C Hamano X-From: git-owner@vger.kernel.org Mon Dec 12 06:41:57 2011 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RZyeC-00015m-Eo for gcvg-git-2@lo.gmane.org; Mon, 12 Dec 2011 06:41:56 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752711Ab1LLFkN (ORCPT ); Mon, 12 Dec 2011 00:40:13 -0500 Received: from einhorn.in-berlin.de ([192.109.42.8]:34717 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752656Ab1LLFkK (ORCPT ); Mon, 12 Dec 2011 00:40:10 -0500 X-Envelope-From: mhagger@alum.mit.edu Received: from michael.fritz.box (p54BEB2AB.dip.t-dialin.net [84.190.178.171]) by einhorn.in-berlin.de (8.13.6/8.13.6/Debian-1) with ESMTP id pBC5d8aX015577; Mon, 12 Dec 2011 06:39:56 +0100 X-Mailer: git-send-email 1.7.8 In-Reply-To: <1323668338-1764-1-git-send-email-mhagger@alum.mit.edu> X-Scanned-By: MIMEDefang_at_IN-Berlin_e.V. on 192.109.42.8 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: From: Michael Haggerty It costs a bit of boilerplate, but it means that the function can be ignorant of how cached refs are stored. Signed-off-by: Michael Haggerty --- refs.c | 46 ++++++++++++++++++++++++++++------------------ 1 files changed, 28 insertions(+), 18 deletions(-) diff --git a/refs.c b/refs.c index 601665b..2cdedf8 100644 --- a/refs.c +++ b/refs.c @@ -1299,36 +1299,46 @@ struct ref_lock *lock_any_ref_for_update(const char *refname, return lock_ref_sha1_basic(refname, old_sha1, flags, NULL); } +struct repack_without_ref_sb { + const char *refname; + int fd; +}; + +static int repack_without_ref_fn(const char *refname, const unsigned char *sha1, + int flags, void *cb_data) +{ + struct repack_without_ref_sb *data = cb_data; + char line[PATH_MAX + 100]; + int len; + + if (!strcmp(data->refname, refname)) + return 0; + len = snprintf(line, sizeof(line), "%s %s\n", + sha1_to_hex(sha1), refname); + /* this should not happen but just being defensive */ + if (len > sizeof(line)) + die("too long a refname '%s'", refname); + write_or_die(data->fd, line, len); + return 0; +} + static struct lock_file packlock; static int repack_without_ref(const char *refname) { + struct repack_without_ref_sb data; struct ref_array *packed; - int fd, i; packed = get_packed_refs(get_ref_cache(NULL)); if (search_ref_array(packed, refname) == NULL) return 0; - fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0); - if (fd < 0) { + data.refname = refname; + data.fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0); + if (data.fd < 0) { unable_to_lock_error(git_path("packed-refs"), errno); return error("cannot delete '%s' from packed refs", refname); } - - for (i = 0; i < packed->nr; i++) { - char line[PATH_MAX + 100]; - int len; - struct ref_entry *ref = packed->refs[i]; - - if (!strcmp(refname, ref->name)) - continue; - len = snprintf(line, sizeof(line), "%s %s\n", - sha1_to_hex(ref->sha1), ref->name); - /* this should not happen but just being defensive */ - if (len > sizeof(line)) - die("too long a refname '%s'", ref->name); - write_or_die(fd, line, len); - } + do_for_each_ref_in_array(packed, 0, "", repack_without_ref_fn, 0, 0, &data); return commit_lock_file(&packlock); } -- 1.7.8