1 files changed, 41 insertions, 28 deletions

diff --git a/fetch-pack.c b/fetch-pack.c
index f752da93a8..3a227721ed 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1,4 +1,5 @@
 #define USE_THE_REPOSITORY_VARIABLE
+#define DISABLE_SIGN_COMPARE_WARNINGS
 
 #include "git-compat-util.h"
 #include "repository.h"
@@ -122,29 +123,41 @@ static void for_each_cached_alternate(struct fetch_negotiator *negotiator,
 		cb(negotiator, cache.items[i]);
 }
 
-static struct commit *deref_without_lazy_fetch_extended(const struct object_id *oid,
-							int mark_tags_complete,
-							enum object_type *type,
-							unsigned int oi_flags)
+static void die_in_commit_graph_only(const struct object_id *oid)
 {
-	struct object_info info = { .typep = type };
+	die(_("You are attempting to fetch %s, which is in the commit graph file but not in the object database.\n"
+	      "This is probably due to repo corruption.\n"
+	      "If you are attempting to repair this repo corruption by refetching the missing object, use 'git fetch --refetch' with the missing object."),
+	      oid_to_hex(oid));
+}
+
+static struct commit *deref_without_lazy_fetch(const struct object_id *oid,
+					       int mark_tags_complete_and_check_obj_db)
+{
+	enum object_type type;
+	struct object_info info = { .typep = &type };
 	struct commit *commit;
 
 	commit = lookup_commit_in_graph(the_repository, oid);
-	if (commit)
+	if (commit) {
+		if (mark_tags_complete_and_check_obj_db) {
+			if (!has_object(the_repository, oid, 0))
+				die_in_commit_graph_only(oid);
+		}
 		return commit;
+	}
 
 	while (1) {
 		if (oid_object_info_extended(the_repository, oid, &info,
-					     oi_flags))
+					     OBJECT_INFO_SKIP_FETCH_OBJECT | OBJECT_INFO_QUICK))
 			return NULL;
-		if (*type == OBJ_TAG) {
+		if (type == OBJ_TAG) {
 			struct tag *tag = (struct tag *)
 				parse_object(the_repository, oid);
 
 			if (!tag->tagged)
 				return NULL;
-			if (mark_tags_complete)
+			if (mark_tags_complete_and_check_obj_db)
 				tag->object.flags |= COMPLETE;
 			oid = &tag->tagged->oid;
 		} else {
@@ -152,7 +165,7 @@ static struct commit *deref_without_lazy_fetch_extended(const struct object_id *
 		}
 	}
 
-	if (*type == OBJ_COMMIT) {
+	if (type == OBJ_COMMIT) {
 		struct commit *commit = lookup_commit(the_repository, oid);
 		if (!commit || repo_parse_commit(the_repository, commit))
 			return NULL;
@@ -162,16 +175,6 @@ static struct commit *deref_without_lazy_fetch_extended(const struct object_id *
 	return NULL;
 }
 
-
-static struct commit *deref_without_lazy_fetch(const struct object_id *oid,
-					       int mark_tags_complete)
-{
-	enum object_type type;
-	unsigned flags = OBJECT_INFO_SKIP_FETCH_OBJECT | OBJECT_INFO_QUICK;
-	return deref_without_lazy_fetch_extended(oid, mark_tags_complete,
-						 &type, flags);
-}
-
 static int rev_list_insert_ref(struct fetch_negotiator *negotiator,
 			       const struct object_id *oid)
 {
@@ -1855,8 +1858,8 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
 	return ref;
 }
 
-static int fetch_pack_config_cb(const char *var, const char *value,
-				const struct config_context *ctx, void *cb)
+int fetch_pack_fsck_config(const char *var, const char *value,
+			   struct strbuf *msg_types)
 {
 	const char *msg_id;
 
@@ -1864,9 +1867,9 @@ static int fetch_pack_config_cb(const char *var, const char *value,
 		char *path ;
 
 		if (git_config_pathname(&path, var, value))
-			return 1;
-		strbuf_addf(&fsck_msg_types, "%cskiplist=%s",
-			fsck_msg_types.len ? ',' : '=', path);
+			return 0;
+		strbuf_addf(msg_types, "%cskiplist=%s",
+			msg_types->len ? ',' : '=', path);
 		free(path);
 		return 0;
 	}
@@ -1875,14 +1878,24 @@ static int fetch_pack_config_cb(const char *var, const char *value,
 		if (!value)
 			return config_error_nonbool(var);
 		if (is_valid_msg_type(msg_id, value))
-			strbuf_addf(&fsck_msg_types, "%c%s=%s",
-				fsck_msg_types.len ? ',' : '=', msg_id, value);
+			strbuf_addf(msg_types, "%c%s=%s",
+				msg_types->len ? ',' : '=', msg_id, value);
 		else
 			warning("Skipping unknown msg id '%s'", msg_id);
 		return 0;
 	}
 
-	return git_default_config(var, value, ctx, cb);
+	return 1;
+}
+
+static int fetch_pack_config_cb(const char *var, const char *value,
+				const struct config_context *ctx, void *cb)
+{
+	int ret = fetch_pack_fsck_config(var, value, &fsck_msg_types);
+	if (ret > 0)
+		return git_default_config(var, value, ctx, cb);
+
+	return ret;
 }
 
 static void fetch_pack_config(void)