Add new "git replace" command

diff --git a/builtin-init-db.c b/builtin-init-db.c
index fc63d0fce5d3067bec884ac3ccaf12e0fd0d4468..d1fa12a59efb34256b2cc80b03c637cc844d84ff 100644 (file)
--- a/builtin-init-db.c
+++ b/builtin-init-db.c
@@ -122,8 +122,10 @@ static void copy_templates(const char *template_dir)
                template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
        if (!template_dir[0])
                return;
+       template_len = strlen(template_dir);
+       if (PATH_MAX <= (template_len+strlen("/config")))
+               die("insanely long template path %s", template_dir);
        strcpy(template_path, template_dir);
-       template_len = strlen(template_path);
        if (template_path[template_len-1] != '/') {
                template_path[template_len++] = '/';
                template_path[template_len] = 0;
@@ -194,6 +196,8 @@ static int create_default_files(const char *template_path)
 
        git_config(git_default_config, NULL);
        is_bare_repository_cfg = init_is_bare_repository;
+
+       /* reading existing config may have overwrote it */
        if (init_shared_repository != -1)
                shared_repository = init_shared_repository;
 
@@ -312,12 +316,15 @@ int init_db(const char *template_dir, unsigned int flags)
                 * and compatibility values for PERM_GROUP and
                 * PERM_EVERYBODY.
                 */
-               if (shared_repository == PERM_GROUP)
+               if (shared_repository < 0)
+                       /* force to the mode value */
+                       sprintf(buf, "0%o", -shared_repository);
+               else if (shared_repository == PERM_GROUP)
                        sprintf(buf, "%d", OLD_PERM_GROUP);
                else if (shared_repository == PERM_EVERYBODY)
                        sprintf(buf, "%d", OLD_PERM_EVERYBODY);
                else
-                       sprintf(buf, "0%o", shared_repository);
+                       die("oops");
                git_config_set("core.sharedrepository", buf);
                git_config_set("receive.denyNonFastforwards", "true");
        }
@@ -397,6 +404,9 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
                        usage(init_db_usage);
        }
 
+       if (init_shared_repository != -1)
+               shared_repository = init_shared_repository;
+
        /*
         * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
         * without --bare.  Catch the error early.