From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Couder Subject: [PATCH v12 01/11] trailer: add data structures and basic functions Date: Sun, 25 May 2014 07:32:12 +0200 Message-ID: <20140525053223.5329.33185.chriscool@tuxfamily.org> References: <20140525051254.5329.66539.chriscool@tuxfamily.org> Cc: git@vger.kernel.org, Johan Herland , Josh Triplett , Thomas Rast , Michael Haggerty , Dan Carpenter , Greg Kroah-Hartman , Jeff King , Eric Sunshine , Ramsay Jones , Jonathan Nieder To: Junio C Hamano X-From: git-owner@vger.kernel.org Sun May 25 07:46:41 2014 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WoRGb-0005Qh-2z for gcvg-git-2@plane.gmane.org; Sun, 25 May 2014 07:46:41 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751382AbaEYFqM (ORCPT ); Sun, 25 May 2014 01:46:12 -0400 Received: from mail-2y.bbox.fr ([194.158.98.15]:63903 "EHLO mail-2y.bbox.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750889AbaEYFqJ (ORCPT ); Sun, 25 May 2014 01:46:09 -0400 Received: from [127.0.1.1] (cha92-h01-128-78-31-246.dsl.sta.abo.bbox.fr [128.78.31.246]) by mail-2y.bbox.fr (Postfix) with ESMTP id 9D69A43; Sun, 25 May 2014 07:46:06 +0200 (CEST) X-git-sha1: 7262412c772b049ec0db506195a03167d5ca3151 X-Mailer: git-mail-commits v0.5.2 In-Reply-To: <20140525051254.5329.66539.chriscool@tuxfamily.org> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: We will use a doubly linked list to store all information about trailers and their configuration. This way we can easily remove or add trailers to or from trailer lists while traversing the lists in either direction. Signed-off-by: Christian Couder Signed-off-by: Junio C Hamano --- Makefile | 1 + trailer.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 50 insertions(+) create mode 100644 trailer.c diff --git a/Makefile b/Makefile index b4af1e2..ec90feb 100644 --- a/Makefile +++ b/Makefile @@ -871,6 +871,7 @@ LIB_OBJS += submodule.o LIB_OBJS += symlinks.o LIB_OBJS += tag.o LIB_OBJS += trace.o +LIB_OBJS += trailer.o LIB_OBJS += transport.o LIB_OBJS += transport-helper.o LIB_OBJS += tree-diff.o diff --git a/trailer.c b/trailer.c new file mode 100644 index 0000000..db93a63 --- /dev/null +++ b/trailer.c @@ -0,0 +1,49 @@ +#include "cache.h" +/* + * Copyright (c) 2013, 2014 Christian Couder + */ + +enum action_where { WHERE_AFTER, WHERE_BEFORE }; +enum action_if_exists { EXISTS_ADD_IF_DIFFERENT, EXISTS_ADD_IF_DIFFERENT_NEIGHBOR, + EXISTS_ADD, EXISTS_OVERWRITE, EXISTS_DO_NOTHING }; +enum action_if_missing { MISSING_ADD, MISSING_DO_NOTHING }; + +struct conf_info { + char *name; + char *key; + char *command; + enum action_where where; + enum action_if_exists if_exists; + enum action_if_missing if_missing; +}; + +struct trailer_item { + struct trailer_item *previous; + struct trailer_item *next; + const char *token; + const char *value; + struct conf_info conf; +}; + +static int same_token(struct trailer_item *a, struct trailer_item *b, int alnum_len) +{ + return !strncasecmp(a->token, b->token, alnum_len); +} + +static int same_value(struct trailer_item *a, struct trailer_item *b) +{ + return !strcasecmp(a->value, b->value); +} + +static int same_trailer(struct trailer_item *a, struct trailer_item *b, int alnum_len) +{ + return same_token(a, b, alnum_len) && same_value(a, b); +} + +/* Get the length of buf from its beginning until its last alphanumeric character */ +static size_t alnum_len(const char *buf, size_t len) +{ + while (len > 0 && !isalnum(buf[len - 1])) + len--; + return len; +} -- 1.9.rc0.17.g651113e