Merge branch 'bc/object-id'

diff --git a/fetch-pack.c b/fetch-pack.c
index a1dcb27f72ddb7d0bed7951176f5d7b3e8f180d7..a912935a63c225b49eb67174d4142de41758dbe8 100644 (file)
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -43,7 +43,12 @@ static int marked;
 #define MAX_IN_VAIN 256
 
 static struct prio_queue rev_list = { compare_commits_by_commit_date };
-static int non_common_revs, multi_ack, use_sideband, allow_tip_sha1_in_want;
+static int non_common_revs, multi_ack, use_sideband;
+/* Allow specifying sha1 if it is a ref tip. */
+#define ALLOW_TIP_SHA1 01
+/* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */
+#define ALLOW_REACHABLE_SHA1   02
+static unsigned int allow_unadvertised_object_request;
 
 static void rev_list_push(struct commit *commit, int mark)
 {
@@ -555,7 +560,8 @@ static void filter_refs(struct fetch_pack_args *args,
        }
 
        /* Append unmatched requests to the list */
-       if (allow_tip_sha1_in_want) {
+       if ((allow_unadvertised_object_request &
+           (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1))) {
                for (i = 0; i < nr_sought; i++) {
                        unsigned char sha1[20];
 
@@ -834,7 +840,12 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
        if (server_supports("allow-tip-sha1-in-want")) {
                if (args->verbose)
                        fprintf(stderr, "Server supports allow-tip-sha1-in-want\n");
-               allow_tip_sha1_in_want = 1;
+               allow_unadvertised_object_request |= ALLOW_TIP_SHA1;
+       }
+       if (server_supports("allow-reachable-sha1-in-want")) {
+               if (args->verbose)
+                       fprintf(stderr, "Server supports allow-reachable-sha1-in-want\n");
+               allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1;
        }
        if (!server_supports("thin-pack"))
                args->use_thin_pack = 0;