multi-pack-index: define GIT_TEST_MULTI_PACK_INDEX

diff --git a/builtin/repack.c b/builtin/repack.c
index d5886039cc6656609962fd522a27f61eda6cd0ec..26dcccdafc5b8054f903a838d379a3a23dbc8b39 100644 (file)
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -8,12 +8,14 @@
 #include "strbuf.h"
 #include "string-list.h"
 #include "argv-array.h"
+#include "midx.h"
 #include "packfile.h"
 #include "object-store.h"
 
 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[] = {
@@ -42,6 +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);
 }
 
@@ -280,6 +286,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        int keep_unreachable = 0;
        struct string_list keep_pack_list = STRING_LIST_INIT_NODUP;
        int no_update_server_info = 0;
+       int midx_cleared = 0;
        struct pack_objects_args po_args = {NULL};
 
        struct option builtin_repack_options[] = {
@@ -301,6 +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,
@@ -361,6 +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);
@@ -418,6 +429,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        for_each_string_list_item(item, &names) {
                for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
                        char *fname, *fname_old;
+
+                       if (!midx_cleared) {
+                               clear_midx_file(the_repository);
+                               midx_cleared = 1;
+                       }
+
                        fname = mkpathdup("%s/pack-%s%s", packdir,
                                                item->string, exts[ext].name);
                        if (!file_exists(fname)) {
@@ -536,6 +553,10 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        if (!no_update_server_info)
                update_server_info(0);
        remove_temporary_files();
+
+       if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX, 0))
+               write_midx_file(get_object_directory());
+
        string_list_clear(&names, 0);
        string_list_clear(&rollback, 0);
        string_list_clear(&existing_packs, 0);