am: fix signoff when other trailers are present
[gitweb.git] / submodule-config.c
index 393de5357eb486d8fb9ee3be1d75c4b80771bd02..4f58491ddb0705ab56e238006199d35db19dfb5a 100644 (file)
@@ -30,7 +30,7 @@ enum lookup_type {
        lookup_path
 };
 
-static struct submodule_cache cache;
+static struct submodule_cache the_submodule_cache;
 static int is_cache_init;
 
 static int config_path_cmp(const struct submodule_entry *a,
@@ -59,6 +59,8 @@ static void free_one_config(struct submodule_entry *entry)
 {
        free((void *) entry->config->path);
        free((void *) entry->config->name);
+       free((void *) entry->config->branch);
+       free((void *) entry->config->update_strategy.command);
        free(entry->config);
 }
 
@@ -194,8 +196,12 @@ static struct submodule *lookup_or_create_by_name(struct submodule_cache *cache,
 
        submodule->path = NULL;
        submodule->url = NULL;
+       submodule->update_strategy.type = SM_UPDATE_UNSPECIFIED;
+       submodule->update_strategy.command = NULL;
        submodule->fetch_recurse = RECURSE_SUBMODULES_NONE;
        submodule->ignore = NULL;
+       submodule->branch = NULL;
+       submodule->recommend_shallow = -1;
 
        hashcpy(submodule->gitmodules_sha1, gitmodules_sha1);
 
@@ -228,12 +234,63 @@ int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg)
        return parse_fetch_recurse(opt, arg, 1);
 }
 
-static void warn_multiple_config(const unsigned char *commit_sha1,
+static int parse_update_recurse(const char *opt, const char *arg,
+                               int die_on_error)
+{
+       switch (git_config_maybe_bool(opt, arg)) {
+       case 1:
+               return RECURSE_SUBMODULES_ON;
+       case 0:
+               return RECURSE_SUBMODULES_OFF;
+       default:
+               if (die_on_error)
+                       die("bad %s argument: %s", opt, arg);
+               return RECURSE_SUBMODULES_ERROR;
+       }
+}
+
+int parse_update_recurse_submodules_arg(const char *opt, const char *arg)
+{
+       return parse_update_recurse(opt, arg, 1);
+}
+
+static int parse_push_recurse(const char *opt, const char *arg,
+                              int die_on_error)
+{
+       switch (git_config_maybe_bool(opt, arg)) {
+       case 1:
+               /* There's no simple "on" value when pushing */
+               if (die_on_error)
+                       die("bad %s argument: %s", opt, arg);
+               else
+                       return RECURSE_SUBMODULES_ERROR;
+       case 0:
+               return RECURSE_SUBMODULES_OFF;
+       default:
+               if (!strcmp(arg, "on-demand"))
+                       return RECURSE_SUBMODULES_ON_DEMAND;
+               else if (!strcmp(arg, "check"))
+                       return RECURSE_SUBMODULES_CHECK;
+               else if (!strcmp(arg, "only"))
+                       return RECURSE_SUBMODULES_ONLY;
+               else if (die_on_error)
+                       die("bad %s argument: %s", opt, arg);
+               else
+                       return RECURSE_SUBMODULES_ERROR;
+       }
+}
+
+int parse_push_recurse_submodules_arg(const char *opt, const char *arg)
+{
+       return parse_push_recurse(opt, arg, 1);
+}
+
+static void warn_multiple_config(const unsigned char *treeish_name,
                                 const char *name, const char *option)
 {
        const char *commit_string = "WORKTREE";
-       if (commit_sha1)
-               commit_string = sha1_to_hex(commit_sha1);
+       if (treeish_name)
+               commit_string = sha1_to_hex(treeish_name);
        warning("%s:.gitmodules, multiple configurations found for "
                        "'submodule.%s.%s'. Skipping second one!",
                        commit_string, name, option);
@@ -241,7 +298,7 @@ static void warn_multiple_config(const unsigned char *commit_sha1,
 
 struct parse_config_parameter {
        struct submodule_cache *cache;
-       const unsigned char *commit_sha1;
+       const unsigned char *treeish_name;
        const unsigned char *gitmodules_sha1;
        int overwrite;
 };
@@ -257,100 +314,108 @@ static int parse_config(const char *var, const char *value, void *data)
        if (!name_and_item_from_var(var, &name, &item))
                return 0;
 
-       submodule = lookup_or_create_by_name(me->cache, me->gitmodules_sha1,
-                       name.buf);
+       submodule = lookup_or_create_by_name(me->cache,
+                                            me->gitmodules_sha1,
+                                            name.buf);
 
        if (!strcmp(item.buf, "path")) {
-               struct strbuf path = STRBUF_INIT;
-               if (!value) {
+               if (!value)
                        ret = config_error_nonbool(var);
-                       goto release_return;
-               }
-               if (!me->overwrite && submodule->path != NULL) {
-                       warn_multiple_config(me->commit_sha1, submodule->name,
+               else if (!me->overwrite && submodule->path)
+                       warn_multiple_config(me->treeish_name, submodule->name,
                                        "path");
-                       goto release_return;
+               else {
+                       if (submodule->path)
+                               cache_remove_path(me->cache, submodule);
+                       free((void *) submodule->path);
+                       submodule->path = xstrdup(value);
+                       cache_put_path(me->cache, submodule);
                }
-
-               if (submodule->path)
-                       cache_remove_path(me->cache, submodule);
-               free((void *) submodule->path);
-               strbuf_addstr(&path, value);
-               submodule->path = strbuf_detach(&path, NULL);
-               cache_put_path(me->cache, submodule);
        } else if (!strcmp(item.buf, "fetchrecursesubmodules")) {
                /* when parsing worktree configurations we can die early */
                int die_on_error = is_null_sha1(me->gitmodules_sha1);
                if (!me->overwrite &&
-                   submodule->fetch_recurse != RECURSE_SUBMODULES_NONE) {
-                       warn_multiple_config(me->commit_sha1, submodule->name,
+                   submodule->fetch_recurse != RECURSE_SUBMODULES_NONE)
+                       warn_multiple_config(me->treeish_name, submodule->name,
                                        "fetchrecursesubmodules");
-                       goto release_return;
-               }
-
-               submodule->fetch_recurse = parse_fetch_recurse(var, value,
+               else
+                       submodule->fetch_recurse = parse_fetch_recurse(
+                                                               var, value,
                                                                die_on_error);
        } else if (!strcmp(item.buf, "ignore")) {
-               struct strbuf ignore = STRBUF_INIT;
-               if (!me->overwrite && submodule->ignore != NULL) {
-                       warn_multiple_config(me->commit_sha1, submodule->name,
-                                       "ignore");
-                       goto release_return;
-               }
-               if (!value) {
+               if (!value)
                        ret = config_error_nonbool(var);
-                       goto release_return;
-               }
-               if (strcmp(value, "untracked") && strcmp(value, "dirty") &&
-                   strcmp(value, "all") && strcmp(value, "none")) {
+               else if (!me->overwrite && submodule->ignore)
+                       warn_multiple_config(me->treeish_name, submodule->name,
+                                       "ignore");
+               else if (strcmp(value, "untracked") &&
+                        strcmp(value, "dirty") &&
+                        strcmp(value, "all") &&
+                        strcmp(value, "none"))
                        warning("Invalid parameter '%s' for config option "
-                                       "'submodule.%s.ignore'", value, var);
-                       goto release_return;
+                                       "'submodule.%s.ignore'", value, name.buf);
+               else {
+                       free((void *) submodule->ignore);
+                       submodule->ignore = xstrdup(value);
                }
-
-               free((void *) submodule->ignore);
-               strbuf_addstr(&ignore, value);
-               submodule->ignore = strbuf_detach(&ignore, NULL);
        } else if (!strcmp(item.buf, "url")) {
-               struct strbuf url = STRBUF_INIT;
                if (!value) {
                        ret = config_error_nonbool(var);
-                       goto release_return;
-               }
-               if (!me->overwrite && submodule->url != NULL) {
-                       warn_multiple_config(me->commit_sha1, submodule->name,
+               } else if (!me->overwrite && submodule->url) {
+                       warn_multiple_config(me->treeish_name, submodule->name,
                                        "url");
-                       goto release_return;
+               } else {
+                       free((void *) submodule->url);
+                       submodule->url = xstrdup(value);
+               }
+       } else if (!strcmp(item.buf, "update")) {
+               if (!value)
+                       ret = config_error_nonbool(var);
+               else if (!me->overwrite &&
+                        submodule->update_strategy.type != SM_UPDATE_UNSPECIFIED)
+                       warn_multiple_config(me->treeish_name, submodule->name,
+                                            "update");
+               else if (parse_submodule_update_strategy(value,
+                        &submodule->update_strategy) < 0)
+                               die(_("invalid value for %s"), var);
+       } else if (!strcmp(item.buf, "shallow")) {
+               if (!me->overwrite && submodule->recommend_shallow != -1)
+                       warn_multiple_config(me->treeish_name, submodule->name,
+                                            "shallow");
+               else
+                       submodule->recommend_shallow =
+                               git_config_bool(var, value);
+       } else if (!strcmp(item.buf, "branch")) {
+               if (!me->overwrite && submodule->branch)
+                       warn_multiple_config(me->treeish_name, submodule->name,
+                                            "branch");
+               else {
+                       free((void *)submodule->branch);
+                       submodule->branch = xstrdup(value);
                }
-
-               free((void *) submodule->url);
-               strbuf_addstr(&url, value);
-               submodule->url = strbuf_detach(&url, NULL);
        }
 
-release_return:
        strbuf_release(&name);
        strbuf_release(&item);
 
        return ret;
 }
 
-static int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
-                                     unsigned char *gitmodules_sha1)
+int gitmodule_sha1_from_commit(const unsigned char *treeish_name,
+                                     unsigned char *gitmodules_sha1,
+                                     struct strbuf *rev)
 {
-       struct strbuf rev = STRBUF_INIT;
        int ret = 0;
 
-       if (is_null_sha1(commit_sha1)) {
-               hashcpy(gitmodules_sha1, null_sha1);
+       if (is_null_sha1(treeish_name)) {
+               hashclr(gitmodules_sha1);
                return 1;
        }
 
-       strbuf_addf(&rev, "%s:.gitmodules", sha1_to_hex(commit_sha1));
-       if (get_sha1(rev.buf, gitmodules_sha1) >= 0)
+       strbuf_addf(rev, "%s:.gitmodules", sha1_to_hex(treeish_name));
+       if (get_sha1(rev->buf, gitmodules_sha1) >= 0)
                ret = 1;
 
-       strbuf_release(&rev);
        return ret;
 }
 
@@ -359,12 +424,12 @@ static int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
  * revisions.
  */
 static const struct submodule *config_from(struct submodule_cache *cache,
-               const unsigned char *commit_sha1, const char *key,
+               const unsigned char *treeish_name, const char *key,
                enum lookup_type lookup_type)
 {
        struct strbuf rev = STRBUF_INIT;
        unsigned long config_size;
-       char *config;
+       char *config = NULL;
        unsigned char sha1[20];
        enum object_type type;
        const struct submodule *submodule = NULL;
@@ -375,19 +440,18 @@ static const struct submodule *config_from(struct submodule_cache *cache,
         * return the first submodule. Can be used to check whether
         * there are any submodules parsed.
         */
-       if (!commit_sha1 || !key) {
+       if (!treeish_name || !key) {
                struct hashmap_iter iter;
                struct submodule_entry *entry;
 
-               hashmap_iter_init(&cache->for_name, &iter);
-               entry = hashmap_iter_next(&iter);
+               entry = hashmap_iter_first(&cache->for_name, &iter);
                if (!entry)
                        return NULL;
                return entry->config;
        }
 
-       if (!gitmodule_sha1_from_commit(commit_sha1, sha1))
-               return NULL;
+       if (!gitmodule_sha1_from_commit(treeish_name, sha1, &rev))
+               goto out;
 
        switch (lookup_type) {
        case lookup_name:
@@ -398,24 +462,20 @@ static const struct submodule *config_from(struct submodule_cache *cache,
                break;
        }
        if (submodule)
-               return submodule;
+               goto out;
 
        config = read_sha1_file(sha1, &type, &config_size);
-       if (!config)
-               return NULL;
-
-       if (type != OBJ_BLOB) {
-               free(config);
-               return NULL;
-       }
+       if (!config || type != OBJ_BLOB)
+               goto out;
 
        /* fill the submodule config into the cache */
        parameter.cache = cache;
-       parameter.commit_sha1 = commit_sha1;
+       parameter.treeish_name = treeish_name;
        parameter.gitmodules_sha1 = sha1;
        parameter.overwrite = 0;
-       git_config_from_buf(parse_config, rev.buf, config, config_size,
-                       &parameter);
+       git_config_from_mem(parse_config, CONFIG_ORIGIN_SUBMODULE_BLOB, rev.buf,
+                       config, config_size, &parameter);
+       strbuf_release(&rev);
        free(config);
 
        switch (lookup_type) {
@@ -426,18 +486,11 @@ static const struct submodule *config_from(struct submodule_cache *cache,
        default:
                return NULL;
        }
-}
-
-static const struct submodule *config_from_path(struct submodule_cache *cache,
-               const unsigned char *commit_sha1, const char *path)
-{
-       return config_from(cache, commit_sha1, path, lookup_path);
-}
 
-static const struct submodule *config_from_name(struct submodule_cache *cache,
-               const unsigned char *commit_sha1, const char *name)
-{
-       return config_from(cache, commit_sha1, name, lookup_name);
+out:
+       strbuf_release(&rev);
+       free(config);
+       return submodule;
 }
 
 static void ensure_cache_init(void)
@@ -445,15 +498,15 @@ static void ensure_cache_init(void)
        if (is_cache_init)
                return;
 
-       cache_init(&cache);
+       cache_init(&the_submodule_cache);
        is_cache_init = 1;
 }
 
 int parse_submodule_config_option(const char *var, const char *value)
 {
        struct parse_config_parameter parameter;
-       parameter.cache = &cache;
-       parameter.commit_sha1 = NULL;
+       parameter.cache = &the_submodule_cache;
+       parameter.treeish_name = NULL;
        parameter.gitmodules_sha1 = null_sha1;
        parameter.overwrite = 1;
 
@@ -461,22 +514,22 @@ int parse_submodule_config_option(const char *var, const char *value)
        return parse_config(var, value, &parameter);
 }
 
-const struct submodule *submodule_from_name(const unsigned char *commit_sha1,
+const struct submodule *submodule_from_name(const unsigned char *treeish_name,
                const char *name)
 {
        ensure_cache_init();
-       return config_from_name(&cache, commit_sha1, name);
+       return config_from(&the_submodule_cache, treeish_name, name, lookup_name);
 }
 
-const struct submodule *submodule_from_path(const unsigned char *commit_sha1,
+const struct submodule *submodule_from_path(const unsigned char *treeish_name,
                const char *path)
 {
        ensure_cache_init();
-       return config_from_path(&cache, commit_sha1, path);
+       return config_from(&the_submodule_cache, treeish_name, path, lookup_path);
 }
 
 void submodule_free(void)
 {
-       cache_free(&cache);
+       cache_free(&the_submodule_cache);
        is_cache_init = 0;
 }