submodule--helper: add is-active subcommand

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 74614a951e8bb8aef4ed0ef07665f8ec0e43cc78..5fe7e23b17cf1b62cec5aed6556730bf10eccc1b 100644 (file)
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -356,12 +356,10 @@ static void init_submodule(const char *path, const char *prefix, int quiet)
                        strbuf_addf(&remotesb, "remote.%s.url", remote);
                        free(remote);
 
-                       if (git_config_get_string(remotesb.buf, &remoteurl))
-                               /*
-                                * The repository is its own
-                                * authoritative upstream
-                                */
+                       if (git_config_get_string(remotesb.buf, &remoteurl)) {
+                               warning(_("could not lookup configuration '%s'. Assuming this repository is its own authoritative upstream."), remotesb.buf);
                                remoteurl = xgetcwd();
+                       }
                        relurl = relative_url(remoteurl, url, NULL);
                        strbuf_release(&remotesb);
                        free(remoteurl);
@@ -626,7 +624,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
                                   module_clone_options);
 
        strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
-       sm_gitdir = xstrdup(absolute_path(sb.buf));
+       sm_gitdir = absolute_pathdup(sb.buf);
        strbuf_reset(&sb);
 
        if (!is_absolute_path(path)) {
@@ -1129,6 +1127,16 @@ static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
        return 0;
 }
 
+static int is_active(int argc, const char **argv, const char *prefix)
+{
+       if (argc != 2)
+               die("submodule--helper is-active takes exactly 1 arguments");
+
+       gitmodules_config();
+
+       return !is_submodule_initialized(argv[1]);
+}
+
 #define SUPPORT_SUPER_PREFIX (1<<0)
 
 struct cmd_struct {
@@ -1148,6 +1156,7 @@ static struct cmd_struct commands[] = {
        {"init", module_init, SUPPORT_SUPER_PREFIX},
        {"remote-branch", resolve_remote_submodule_branch, 0},
        {"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
+       {"is-active", is_active, 0},
 };
 
 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)