make shallow repository deepening more network efficient

diff --git a/upload-pack.c b/upload-pack.c
index edc78612289c5bd774e18fe5f8e1b9ea80378a5f..7428ff715d7c7429c4a28bbe4cadab07963d6fea 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -31,6 +31,7 @@ static int use_thin_pack, use_ofs_delta, use_include_tag;
 static int no_progress;
 static struct object_array have_obj;
 static struct object_array want_obj;
+static struct object_array extra_edge_obj;
 static unsigned int timeout;
 /* 0 for no sideband,
  * otherwise maximum packet size (up to 65520 bytes).
@@ -136,6 +137,10 @@ static int do_rev_list(int fd, void *create_full_pack)
        if (prepare_revision_walk(&revs))
                die("revision walk setup failed");
        mark_edges_uninteresting(revs.commits, &revs, show_edge);
+       if (use_thin_pack)
+               for (i = 0; i < extra_edge_obj.nr; i++)
+                       fprintf(pack_pipe, "-%s\n", sha1_to_hex(
+                                       extra_edge_obj.objects[i].item->sha1));
        traverse_commit_list(&revs, show_commit, show_object, NULL);
        fflush(pack_pipe);
        fclose(pack_pipe);
@@ -466,7 +471,6 @@ static void receive_needs(void)
                if (!prefixcmp(line, "shallow ")) {
                        unsigned char sha1[20];
                        struct object *object;
-                       use_thin_pack = 0;
                        if (get_sha1(line + 8, sha1))
                                die("invalid shallow line: %s", line);
                        object = parse_object(sha1);
@@ -478,7 +482,6 @@ static void receive_needs(void)
                }
                if (!prefixcmp(line, "deepen ")) {
                        char *end;
-                       use_thin_pack = 0;
                        depth = strtol(line + 7, &end, 0);
                        if (end == line + 7 || depth <= 0)
                                die("Invalid deepen: %s", line);
@@ -556,6 +559,7 @@ static void receive_needs(void)
                                                        NULL, &want_obj);
                                        parents = parents->next;
                                }
+                               add_object_array(object, NULL, &extra_edge_obj);
                        }
                        /* make sure commit traversal conforms to client */
                        register_shallow(object->sha1);