trailer: read and process config information
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 <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Christian Couder
Junio C Hamano
parent
4103818d20
commit
46a0613f00
185
trailer.c
185
trailer.c
@ -277,3 +277,188 @@ static void process_trailers_lists(struct trailer_item **in_tok_first,
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arg_tok);
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}
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}
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static int set_where(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("after", value))
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item->where = WHERE_AFTER;
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else if (!strcasecmp("before", value))
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item->where = WHERE_BEFORE;
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else if (!strcasecmp("end", value))
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item->where = WHERE_END;
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else if (!strcasecmp("start", value))
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item->where = WHERE_START;
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else
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return -1;
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return 0;
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}
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static int set_if_exists(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("addIfDifferent", value))
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item->if_exists = EXISTS_ADD_IF_DIFFERENT;
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else if (!strcasecmp("addIfDifferentNeighbor", value))
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item->if_exists = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR;
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else if (!strcasecmp("add", value))
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item->if_exists = EXISTS_ADD;
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else if (!strcasecmp("replace", value))
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item->if_exists = EXISTS_REPLACE;
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else if (!strcasecmp("doNothing", value))
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item->if_exists = EXISTS_DO_NOTHING;
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else
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return -1;
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return 0;
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}
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static int set_if_missing(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("doNothing", value))
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item->if_missing = MISSING_DO_NOTHING;
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else if (!strcasecmp("add", value))
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item->if_missing = MISSING_ADD;
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else
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return -1;
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return 0;
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}
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static void duplicate_conf(struct conf_info *dst, struct conf_info *src)
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{
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*dst = *src;
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if (src->name)
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dst->name = xstrdup(src->name);
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if (src->key)
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dst->key = xstrdup(src->key);
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if (src->command)
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dst->command = xstrdup(src->command);
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}
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static struct trailer_item *get_conf_item(const char *name)
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{
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struct trailer_item *item;
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struct trailer_item *previous;
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/* Look up item with same name */
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for (previous = NULL, item = first_conf_item;
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item;
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previous = item, item = item->next) {
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if (!strcasecmp(item->conf.name, name))
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return item;
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}
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/* Item does not already exists, create it */
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item = xcalloc(sizeof(struct trailer_item), 1);
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duplicate_conf(&item->conf, &default_conf_info);
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item->conf.name = xstrdup(name);
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if (!previous)
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first_conf_item = item;
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else {
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previous->next = item;
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item->previous = previous;
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}
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return item;
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}
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enum trailer_info_type { TRAILER_KEY, TRAILER_COMMAND, TRAILER_WHERE,
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TRAILER_IF_EXISTS, TRAILER_IF_MISSING };
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static struct {
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const char *name;
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enum trailer_info_type type;
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} trailer_config_items[] = {
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{ "key", TRAILER_KEY },
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{ "command", TRAILER_COMMAND },
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{ "where", TRAILER_WHERE },
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{ "ifexists", TRAILER_IF_EXISTS },
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{ "ifmissing", TRAILER_IF_MISSING }
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};
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static int git_trailer_default_config(const char *conf_key, const char *value, void *cb)
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{
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const char *trailer_item, *variable_name;
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if (!skip_prefix(conf_key, "trailer.", &trailer_item))
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return 0;
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variable_name = strrchr(trailer_item, '.');
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if (!variable_name) {
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if (!strcmp(trailer_item, "where")) {
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if (set_where(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "ifexists")) {
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if (set_if_exists(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "ifmissing")) {
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if (set_if_missing(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "separators")) {
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separators = xstrdup(value);
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}
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}
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return 0;
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}
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static int git_trailer_config(const char *conf_key, const char *value, void *cb)
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{
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const char *trailer_item, *variable_name;
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struct trailer_item *item;
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struct conf_info *conf;
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char *name = NULL;
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enum trailer_info_type type;
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int i;
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if (!skip_prefix(conf_key, "trailer.", &trailer_item))
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return 0;
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variable_name = strrchr(trailer_item, '.');
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if (!variable_name)
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return 0;
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variable_name++;
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for (i = 0; i < ARRAY_SIZE(trailer_config_items); i++) {
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if (strcmp(trailer_config_items[i].name, variable_name))
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continue;
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name = xstrndup(trailer_item, variable_name - trailer_item - 1);
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type = trailer_config_items[i].type;
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break;
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}
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if (!name)
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return 0;
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item = get_conf_item(name);
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conf = &item->conf;
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free(name);
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switch (type) {
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case TRAILER_KEY:
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if (conf->key)
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warning(_("more than one %s"), conf_key);
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conf->key = xstrdup(value);
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break;
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case TRAILER_COMMAND:
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if (conf->command)
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warning(_("more than one %s"), conf_key);
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conf->command = xstrdup(value);
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break;
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case TRAILER_WHERE:
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if (set_where(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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case TRAILER_IF_EXISTS:
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if (set_if_exists(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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case TRAILER_IF_MISSING:
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if (set_if_missing(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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default:
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die("internal bug in trailer.c");
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}
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return 0;
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}
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