t/helper: add a test helper to compute hash speed

diff --git a/builtin/repack.c b/builtin/repack.c
index 42be88e86ce6fd5541ad067c17f5b29a4d492feb..c6a7943d5cb108dbccdfd502d799ab71a9e7e146 100644 (file)
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -15,6 +15,7 @@
 static int delta_base_offset = 1;
 static int pack_kept_objects = -1;
 static int write_bitmaps;
+static int use_delta_islands;
 static char *packdir, *packtmp;
 
 static const char *const git_repack_usage[] = {
@@ -43,6 +44,10 @@ static int repack_config(const char *var, const char *value, void *cb)
                write_bitmaps = git_config_bool(var, value);
                return 0;
        }
+       if (!strcmp(var, "repack.usedeltaislands")) {
+               use_delta_islands = git_config_bool(var, value);
+               return 0;
+       }
        return git_default_config(var, value, cb);
 }
 
@@ -303,6 +308,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                                N_("pass --local to git-pack-objects")),
                OPT_BOOL('b', "write-bitmap-index", &write_bitmaps,
                                N_("write bitmap index")),
+               OPT_BOOL('i', "delta-islands", &use_delta_islands,
+                               N_("pass --delta-islands to git-pack-objects")),
                OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"),
                                N_("with -A, do not loosen objects older than this")),
                OPT_BOOL('k', "keep-unreachable", &keep_unreachable,
@@ -363,6 +370,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                argv_array_push(&cmd.args, "--exclude-promisor-objects");
        if (write_bitmaps)
                argv_array_push(&cmd.args, "--write-bitmap-index");
+       if (use_delta_islands)
+               argv_array_push(&cmd.args, "--delta-islands");
 
        if (pack_everything & ALL_INTO_ONE) {
                get_non_kept_pack_filenames(&existing_packs, &keep_pack_list);