git log/diff: add -G<regexp> that greps in the patch text

diff --git a/shallow.c b/shallow.c
index 3d53d17423a73a1e206ee631c33ec7a88c40707a..4d90eda19efe0a80c1cb39e8897ab3ed5e6fcf56 100644 (file)
--- a/shallow.c
+++ b/shallow.c
@@ -17,7 +17,7 @@ int register_shallow(const unsigned char *sha1)
        return register_commit_graft(graft, 0);
 }
 
-int is_repository_shallow()
+int is_repository_shallow(void)
 {
        FILE *fp;
        char buf[1024];
@@ -56,7 +56,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
                        if (i < heads->nr) {
                                commit = (struct commit *)
                                        deref_tag(heads->objects[i++].item, NULL, 0);
-                               if (commit->object.type != OBJ_COMMIT) {
+                               if (!commit || commit->object.type != OBJ_COMMIT) {
                                        commit = NULL;
                                        continue;
                                }
@@ -70,7 +70,8 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
                                cur_depth = *(int *)commit->util;
                        }
                }
-               parse_commit(commit);
+               if (parse_commit(commit))
+                       die("invalid commit");
                commit->object.flags |= not_shallow_flag;
                cur_depth++;
                for (p = commit->parents, commit = NULL; p; p = p->next) {
@@ -101,4 +102,3 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 
        return result;
 }
-