fetch: add test to make sure we stay backwards compatible

diff --git a/repository.c b/repository.c
index f107af7d763e848648ace5da0010be4df2e0d4dc..bb2fae5446b7ea8d2bfac87faa30c165f714d121 100644 (file)
--- a/repository.c
+++ b/repository.c
@@ -40,11 +40,15 @@ static void repo_setup_env(struct repository *repo)
 
        repo->different_commondir = find_common_dir(&sb, repo->gitdir,
                                                    !repo->ignore_env);
+       free(repo->commondir);
        repo->commondir = strbuf_detach(&sb, NULL);
+       free(repo->objectdir);
        repo->objectdir = git_path_from_env(DB_ENVIRONMENT, repo->commondir,
                                            "objects", !repo->ignore_env);
+       free(repo->graft_file);
        repo->graft_file = git_path_from_env(GRAFT_ENVIRONMENT, repo->commondir,
                                             "info/grafts", !repo->ignore_env);
+       free(repo->index_file);
        repo->index_file = git_path_from_env(INDEX_ENVIRONMENT, repo->gitdir,
                                             "index", !repo->ignore_env);
 }
@@ -52,16 +56,12 @@ static void repo_setup_env(struct repository *repo)
 void repo_set_gitdir(struct repository *repo, const char *path)
 {
        const char *gitfile = read_gitfile(path);
+       char *old_gitdir = repo->gitdir;
 
-       /*
-        * NEEDSWORK: Eventually we want to be able to free gitdir and the rest
-        * of the environment before reinitializing it again, but we have some
-        * crazy code paths where we try to set gitdir with the current gitdir
-        * and we don't want to free gitdir before copying the passed in value.
-        */
        repo->gitdir = xstrdup(gitfile ? gitfile : path);
-
        repo_setup_env(repo);
+
+       free(old_gitdir);
 }
 
 /*
@@ -200,25 +200,17 @@ int repo_submodule_init(struct repository *submodule,
 
 void repo_clear(struct repository *repo)
 {
-       free(repo->gitdir);
-       repo->gitdir = NULL;
-       free(repo->commondir);
-       repo->commondir = NULL;
-       free(repo->objectdir);
-       repo->objectdir = NULL;
-       free(repo->graft_file);
-       repo->graft_file = NULL;
-       free(repo->index_file);
-       repo->index_file = NULL;
-       free(repo->worktree);
-       repo->worktree = NULL;
-       free(repo->submodule_prefix);
-       repo->submodule_prefix = NULL;
+       FREE_AND_NULL(repo->gitdir);
+       FREE_AND_NULL(repo->commondir);
+       FREE_AND_NULL(repo->objectdir);
+       FREE_AND_NULL(repo->graft_file);
+       FREE_AND_NULL(repo->index_file);
+       FREE_AND_NULL(repo->worktree);
+       FREE_AND_NULL(repo->submodule_prefix);
 
        if (repo->config) {
                git_configset_clear(repo->config);
-               free(repo->config);
-               repo->config = NULL;
+               FREE_AND_NULL(repo->config);
        }
 
        if (repo->submodule_cache) {
@@ -228,8 +220,7 @@ void repo_clear(struct repository *repo)
 
        if (repo->index) {
                discard_index(repo->index);
-               free(repo->index);
-               repo->index = NULL;
+               FREE_AND_NULL(repo->index);
        }
 }