Merge branch 'jr/hash-migration-plan-doc'

diff --git a/submodule.c b/submodule.c
index 075c55f3ca8101e06731ef3b45e51d11ec00c7f6..63e7094e1620c2c3eb7dda0a8c38a833ae2d1c5a 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -503,7 +503,7 @@ static void show_submodule_header(struct diff_options *o, const char *path,
 
        if (add_submodule_odb(path)) {
                if (!message)
-                       message = "(not initialized)";
+                       message = "(commits not present)";
                goto output_header;
        }
 
@@ -774,19 +774,36 @@ static int append_oid_to_argv(const struct object_id *oid, void *data)
        return 0;
 }
 
+struct has_commit_data {
+       int result;
+       const char *path;
+};
+
 static int check_has_commit(const struct object_id *oid, void *data)
 {
-       int *has_commit = data;
+       struct has_commit_data *cb = data;
 
-       if (!lookup_commit_reference(oid))
-               *has_commit = 0;
+       enum object_type type = sha1_object_info(oid->hash, NULL);
 
-       return 0;
+       switch (type) {
+       case OBJ_COMMIT:
+               return 0;
+       case OBJ_BAD:
+               /*
+                * Object is missing or invalid. If invalid, an error message
+                * has already been printed.
+                */
+               cb->result = 0;
+               return 0;
+       default:
+               die(_("submodule entry '%s' (%s) is a %s, not a commit"),
+                   cb->path, oid_to_hex(oid), typename(type));
+       }
 }
 
 static int submodule_has_commits(const char *path, struct oid_array *commits)
 {
-       int has_commit = 1;
+       struct has_commit_data has_commit = { 1, path };
 
        /*
         * Perform a cheap, but incorrect check for the existence of 'commits'.
@@ -802,7 +819,7 @@ static int submodule_has_commits(const char *path, struct oid_array *commits)
 
        oid_array_for_each_unique(commits, check_has_commit, &has_commit);
 
-       if (has_commit) {
+       if (has_commit.result) {
                /*
                 * Even if the submodule is checked out and the commit is
                 * present, make sure it exists in the submodule's object store
@@ -821,12 +838,12 @@ static int submodule_has_commits(const char *path, struct oid_array *commits)
                cp.dir = path;
 
                if (capture_command(&cp, &out, GIT_MAX_HEXSZ + 1) || out.len)
-                       has_commit = 0;
+                       has_commit.result = 0;
 
                strbuf_release(&out);
        }
 
-       return has_commit;
+       return has_commit.result;
 }
 
 static int submodule_needs_pushing(const char *path, struct oid_array *commits)
@@ -1668,7 +1685,7 @@ static int find_first_merges(struct object_array *result, const char *path,
                        add_object_array(merges.objects[i].item, NULL, result);
        }
 
-       free(merges.objects);
+       object_array_clear(&merges);
        return result->nr;
 }
 
@@ -1773,7 +1790,7 @@ int merge_submodule(struct object_id *result, const char *path,
                        print_commit((struct commit *) merges.objects[i].item);
        }
 
-       free(merges.objects);
+       object_array_clear(&merges);
        return 0;
 }
 
@@ -1980,6 +1997,10 @@ const char *get_superproject_working_tree(void)
        return ret;
 }
 
+/*
+ * Put the gitdir for a submodule (given relative to the main
+ * repository worktree) into `buf`, or return -1 on error.
+ */
 int submodule_to_gitdir(struct strbuf *buf, const char *submodule)
 {
        const struct submodule *sub;