transport-helper: release strbuf after use in process_connect_service()

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 36df7ab78f6285c62b333752d53144b65a5e7ffa..818fe74f0af8696fe21a75d4aaf6b919b645d22b 100644 (file)
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -275,8 +275,6 @@ static void module_list_active(struct module_list *list)
        int i;
        struct module_list active_modules = MODULE_LIST_INIT;
 
-       gitmodules_config();
-
        for (i = 0; i < list->nr; i++) {
                const struct cache_entry *ce = list->entries[i];
 
@@ -337,9 +335,6 @@ static void init_submodule(const char *path, const char *prefix, int quiet)
        struct strbuf sb = STRBUF_INIT;
        char *upd = NULL, *url = NULL, *displaypath;
 
-       /* Only loads from .gitmodules, no overlay with .git/config */
-       gitmodules_config();
-
        if (prefix && get_super_prefix())
                die("BUG: cannot have prefix and superprefix");
        else if (prefix)
@@ -475,7 +470,6 @@ static int module_name(int argc, const char **argv, const char *prefix)
        if (argc != 2)
                usage(_("git submodule--helper name <path>"));
 
-       gitmodules_config();
        sub = submodule_from_path(&null_oid, argv[1]);
 
        if (!sub)
@@ -947,7 +941,7 @@ static int update_clone_task_finished(int result,
        const struct cache_entry *ce;
        struct submodule_update_clone *suc = suc_cb;
 
-       int *idxP = *(int**)idx_task_cb;
+       int *idxP = idx_task_cb;
        int idx = *idxP;
        free(idxP);
 
@@ -1042,8 +1036,6 @@ static int update_clone(int argc, const char **argv, const char *prefix)
        if (pathspec.nr)
                suc.warn_if_uninitialized = 1;
 
-       gitmodules_config();
-
        run_processes_parallel(max_jobs,
                               update_clone_get_next_task,
                               update_clone_start_failure,
@@ -1084,8 +1076,6 @@ static const char *remote_submodule_branch(const char *path)
        const char *branch = NULL;
        char *key;
 
-       gitmodules_config();
-
        sub = submodule_from_path(&null_oid, path);
        if (!sub)
                return NULL;
@@ -1139,9 +1129,28 @@ static int resolve_remote_submodule_branch(int argc, const char **argv,
 static int push_check(int argc, const char **argv, const char *prefix)
 {
        struct remote *remote;
+       const char *superproject_head;
+       char *head;
+       int detached_head = 0;
+       struct object_id head_oid;
+
+       if (argc < 3)
+               die("submodule--helper push-check requires at least 2 arguments");
 
-       if (argc < 2)
-               die("submodule--helper push-check requires at least 1 argument");
+       /*
+        * superproject's resolved head ref.
+        * if HEAD then the superproject is in a detached head state, otherwise
+        * it will be the resolved head ref.
+        */
+       superproject_head = argv[1];
+       argv++;
+       argc--;
+       /* Get the submodule's head ref and determine if it is detached */
+       head = resolve_refdup("HEAD", 0, head_oid.hash, NULL);
+       if (!head)
+               die(_("Failed to resolve HEAD as a valid ref."));
+       if (!strcmp(head, "HEAD"))
+               detached_head = 1;
 
        /*
         * The remote must be configured.
@@ -1164,18 +1173,30 @@ static int push_check(int argc, const char **argv, const char *prefix)
                        if (rs->pattern || rs->matching)
                                continue;
 
-                       /*
-                        * LHS must match a single ref
-                        * NEEDSWORK: add logic to special case 'HEAD' once
-                        * working with submodules in a detached head state
-                        * ceases to be the norm.
-                        */
-                       if (count_refspec_match(rs->src, local_refs, NULL) != 1)
+                       /* LHS must match a single ref */
+                       switch (count_refspec_match(rs->src, local_refs, NULL)) {
+                       case 1:
+                               break;
+                       case 0:
+                               /*
+                                * If LHS matches 'HEAD' then we need to ensure
+                                * that it matches the same named branch
+                                * checked out in the superproject.
+                                */
+                               if (!strcmp(rs->src, "HEAD")) {
+                                       if (!detached_head &&
+                                           !strcmp(head, superproject_head))
+                                               break;
+                                       die("HEAD does not match the named branch in the superproject");
+                               }
+                       default:
                                die("src refspec '%s' must name a ref",
                                    rs->src);
+                       }
                }
                free_refspec(refspec_nr, refspec);
        }
+       free(head);
 
        return 0;
 }
@@ -1204,9 +1225,6 @@ static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, embed_gitdir_options,
                             git_submodule_helper_usage, 0);
 
-       gitmodules_config();
-       git_config(submodule_config, NULL);
-
        if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
                return 1;
 
@@ -1222,8 +1240,6 @@ static int is_active(int argc, const char **argv, const char *prefix)
        if (argc != 2)
                die("submodule--helper is-active takes exactly 1 argument");
 
-       gitmodules_config();
-
        return !is_submodule_active(the_repository, argv[1]);
 }