Merge branch 'kn/midx-wo-the-repository' into seen

* kn/midx-wo-the-repository:
  midx: inline the `MIDX_MIN_SIZE` definition
  midx: pass down `hash_algo` to functions using global variables
  midx: pass `repository` to `load_multi_pack_index`
  midx: cleanup internal usage of `the_repository` and `the_hash_algo`
  midx-write: pass down repository to `write_midx_file[_only]`
  write-midx: add repository field to `write_midx_context`
  midx-write: use `revs->repo` inside `read_refs_snapshot`
  midx-write: pass down repository to static functions

Author: gitster

builtin/multi-pack-index.c

@@ -120,7 +120,7 @@ static void read_packs_from_stdin(struct string_list *to)
 
 static int cmd_multi_pack_index_write(int argc, const char **argv,
 				      const char *prefix,
-				      struct repository *repo UNUSED)
+				      struct repository *repo)
 {
 	struct option *options;
 	static struct option builtin_multi_pack_index_write_options[] = {
@@ -165,7 +165,7 @@ static int cmd_multi_pack_index_write(int argc, const char **argv,
 
 		read_packs_from_stdin(&packs);
 
-		ret = write_midx_file_only(opts.object_dir, &packs,
+		ret = write_midx_file_only(repo, opts.object_dir, &packs,
 					   opts.preferred_pack,
 					   opts.refs_snapshot, opts.flags);
 
@@ -176,7 +176,7 @@ static int cmd_multi_pack_index_write(int argc, const char **argv,
 
 	}
 
-	ret = write_midx_file(opts.object_dir, opts.preferred_pack,
+	ret = write_midx_file(repo, opts.object_dir, opts.preferred_pack,
 			      opts.refs_snapshot, opts.flags);
 
 	free(opts.refs_snapshot);

builtin/repack.c

@@ -1576,7 +1576,7 @@ int cmd_repack(int argc,
 		unsigned flags = 0;
 		if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX_WRITE_INCREMENTAL, 0))
 			flags |= MIDX_WRITE_INCREMENTAL;
-		write_midx_file(repo_get_object_directory(the_repository),
+		write_midx_file(the_repository, repo_get_object_directory(the_repository),
 				NULL, NULL, flags);
 	}