From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Couder Subject: [PATCH v14 03/11] trailer: read and process config information Date: Mon, 15 Sep 2014 07:31:33 +0200 Message-ID: <20140915053142.26573.44975.chriscool@tuxfamily.org> References: <20140915052330.26573.34823.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 , Marc Branchaud To: Junio C Hamano X-From: git-owner@vger.kernel.org Mon Sep 15 07:51:45 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 1XTPBz-00043W-8Z for gcvg-git-2@plane.gmane.org; Mon, 15 Sep 2014 07:51:15 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752247AbaIOFvL (ORCPT ); Mon, 15 Sep 2014 01:51:11 -0400 Received: from delay-3y.bbox.fr ([194.158.98.73]:55897 "EHLO delay-3y.bbox.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752207AbaIOFvK (ORCPT ); Mon, 15 Sep 2014 01:51:10 -0400 Received: from mail-2y.bbox.fr (bt8sssoo.cs.dolmen.bouyguestelecom.fr [172.24.208.129]) by delay-3y.bbox.fr (Postfix) with ESMTP id 35744A7BE9 for ; Mon, 15 Sep 2014 07:36:27 +0200 (CEST) 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 A2A8474; Mon, 15 Sep 2014 07:34:05 +0200 (CEST) X-git-sha1: f0c59db82fe484e93167e6784bf61aa00727976f X-Mailer: git-mail-commits v0.5.2 In-Reply-To: <20140915052330.26573.34823.chriscool@tuxfamily.org> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Read the configuration to get trailer information, and then process it and store it in a doubly linked list. The config information is stored in the list whose first item is pointed to by: static struct trailer_item *first_conf_item; Signed-off-by: Christian Couder Signed-off-by: Junio C Hamano --- trailer.c | 185 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) diff --git a/trailer.c b/trailer.c index 4940e06..2d391f3 100644 --- a/trailer.c +++ b/trailer.c @@ -272,3 +272,188 @@ static void process_trailers_lists(struct trailer_item **in_tok_first, arg_tok); } } + +static int set_where(struct conf_info *item, const char *value) +{ + if (!strcasecmp("after", value)) + item->where = WHERE_AFTER; + else if (!strcasecmp("before", value)) + item->where = WHERE_BEFORE; + else if (!strcasecmp("end", value)) + item->where = WHERE_END; + else if (!strcasecmp("start", value)) + item->where = WHERE_START; + else + return -1; + return 0; +} + +static int set_if_exists(struct conf_info *item, const char *value) +{ + if (!strcasecmp("addIfDifferent", value)) + item->if_exists = EXISTS_ADD_IF_DIFFERENT; + else if (!strcasecmp("addIfDifferentNeighbor", value)) + item->if_exists = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR; + else if (!strcasecmp("add", value)) + item->if_exists = EXISTS_ADD; + else if (!strcasecmp("replace", value)) + item->if_exists = EXISTS_REPLACE; + else if (!strcasecmp("doNothing", value)) + item->if_exists = EXISTS_DO_NOTHING; + else + return -1; + return 0; +} + +static int set_if_missing(struct conf_info *item, const char *value) +{ + if (!strcasecmp("doNothing", value)) + item->if_missing = MISSING_DO_NOTHING; + else if (!strcasecmp("add", value)) + item->if_missing = MISSING_ADD; + else + return -1; + return 0; +} + +static void duplicate_conf(struct conf_info *dst, struct conf_info *src) +{ + *dst = *src; + if (src->name) + dst->name = xstrdup(src->name); + if (src->key) + dst->key = xstrdup(src->key); + if (src->command) + dst->command = xstrdup(src->command); +} + +static struct trailer_item *get_conf_item(const char *name) +{ + struct trailer_item *item; + struct trailer_item *previous; + + /* Look up item with same name */ + for (previous = NULL, item = first_conf_item; + item; + previous = item, item = item->next) { + if (!strcasecmp(item->conf.name, name)) + return item; + } + + /* Item does not already exists, create it */ + item = xcalloc(sizeof(struct trailer_item), 1); + duplicate_conf(&item->conf, &default_conf_info); + item->conf.name = xstrdup(name); + + if (!previous) + first_conf_item = item; + else { + previous->next = item; + item->previous = previous; + } + + return item; +} + +enum trailer_info_type { TRAILER_KEY, TRAILER_COMMAND, TRAILER_WHERE, + TRAILER_IF_EXISTS, TRAILER_IF_MISSING }; + +static struct { + const char *name; + enum trailer_info_type type; +} trailer_config_items[] = { + { "key", TRAILER_KEY }, + { "command", TRAILER_COMMAND }, + { "where", TRAILER_WHERE }, + { "ifexists", TRAILER_IF_EXISTS }, + { "ifmissing", TRAILER_IF_MISSING } +}; + +static int git_trailer_default_config(const char *conf_key, const char *value, void *cb) +{ + const char *trailer_item, *variable_name; + + if (!skip_prefix(conf_key, "trailer.", &trailer_item)) + return 0; + + variable_name = strrchr(trailer_item, '.'); + if (!variable_name) { + if (!strcmp(trailer_item, "where")) { + if (set_where(&default_conf_info, value) < 0) + warning(_("unknown value '%s' for key '%s'"), + value, conf_key); + } else if (!strcmp(trailer_item, "ifexists")) { + if (set_if_exists(&default_conf_info, value) < 0) + warning(_("unknown value '%s' for key '%s'"), + value, conf_key); + } else if (!strcmp(trailer_item, "ifmissing")) { + if (set_if_missing(&default_conf_info, value) < 0) + warning(_("unknown value '%s' for key '%s'"), + value, conf_key); + } else if (!strcmp(trailer_item, "separators")) { + separators = xstrdup(value); + } + } + return 0; +} + +static int git_trailer_config(const char *conf_key, const char *value, void *cb) +{ + const char *trailer_item, *variable_name; + struct trailer_item *item; + struct conf_info *conf; + char *name = NULL; + enum trailer_info_type type; + int i; + + if (!skip_prefix(conf_key, "trailer.", &trailer_item)) + return 0; + + variable_name = strrchr(trailer_item, '.'); + if (!variable_name) + return 0; + + variable_name++; + for (i = 0; i < ARRAY_SIZE(trailer_config_items); i++) { + if (strcmp(trailer_config_items[i].name, variable_name)) + continue; + name = xstrndup(trailer_item, variable_name - trailer_item - 1); + type = trailer_config_items[i].type; + break; + } + + if (!name) + return 0; + + item = get_conf_item(name); + conf = &item->conf; + free(name); + + switch (type) { + case TRAILER_KEY: + if (conf->key) + warning(_("more than one %s"), conf_key); + conf->key = xstrdup(value); + break; + case TRAILER_COMMAND: + if (conf->command) + warning(_("more than one %s"), conf_key); + conf->command = xstrdup(value); + break; + case TRAILER_WHERE: + if (set_where(conf, value)) + warning(_("unknown value '%s' for key '%s'"), value, conf_key); + break; + case TRAILER_IF_EXISTS: + if (set_if_exists(conf, value)) + warning(_("unknown value '%s' for key '%s'"), value, conf_key); + break; + case TRAILER_IF_MISSING: + if (set_if_missing(conf, value)) + warning(_("unknown value '%s' for key '%s'"), value, conf_key); + break; + default: + die("internal bug in trailer.c"); + } + return 0; +} -- 2.0.3.960.g41c6e4c