server-info: do not list unlinked packs

Having non-existent packs in objects/info/packs causes
dumb HTTP clients to abort.

v2: use single loop with ALLOC_GROW as suggested by Jeff King

Signed-off-by: Eric Wong <e@80x24.org>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/server-info.c b/server-info.c
index 41274d098bc3b07b7f0130e7b9efcc20873cf46d..92187c70db650ee0e4d5ea4bf3435e84a51c44b2 100644 (file)
--- a/server-info.c
+++ b/server-info.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "dir.h"
 #include "repository.h"
 #include "refs.h"
 #include "object.h"
@@ -191,26 +192,21 @@ static void init_pack_info(const char *infofile, int force)
 {
        struct packed_git *p;
        int stale;
-       int i = 0;
+       int i;
+       size_t alloc = 0;
 
        for (p = get_all_packs(the_repository); p; p = p->next) {
                /* we ignore things on alternate path since they are
                 * not available to the pullers in general.
                 */
-               if (!p->pack_local)
-                       continue;
-               i++;
-       }
-       num_pack = i;
-       info = xcalloc(num_pack, sizeof(struct pack_info *));
-       for (i = 0, p = get_all_packs(the_repository); p; p = p->next) {
-               if (!p->pack_local)
+               if (!p->pack_local || !file_exists(p->pack_name))
                        continue;
-               assert(i < num_pack);
+
+               i = num_pack++;
+               ALLOC_GROW(info, num_pack, alloc);
                info[i] = xcalloc(1, sizeof(struct pack_info));
                info[i]->p = p;
                info[i]->old_num = -1;
-               i++;
        }
 
        if (infofile && !force)

diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh
index 515c6735e9cb076c9f4b5a252c48216765b5076a..c0f04dc6b0e149173691e13c0194ffbd53be6ef8 100755 (executable)
--- a/t/t6500-gc.sh
+++ b/t/t6500-gc.sh
@@ -71,6 +71,8 @@ test_expect_success 'gc --keep-largest-pack' '
                git gc --keep-largest-pack &&
                ( cd .git/objects/pack && ls *.pack ) >pack-list &&
                test_line_count = 2 pack-list &&
+               awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info &&
+               test_line_count = 2 pack-info &&
                test_path_is_file $BASE_PACK &&
                git fsck
        )