survey: show progress during object walk

Signed-off-by: Derrick Stolee <stolee@gmail.com>

builtin/survey.c

@@ -628,6 +628,9 @@ static int survey_objects_path_walk_fn(const char *path,
 				type, oids->nr);
 	increment_object_totals(ctx, oids, type);
 
+	ctx->progress_nr += oids->nr;
+	display_progress(ctx->progress, ctx->progress_nr);
+
 	return 0;
 }
 
@@ -657,13 +660,24 @@ static void survey_phase_objects(struct survey_context *ctx)
 	repo_init_revisions(ctx->repo, &revs, "");
 	revs.tag_objects = 1;
 
+	ctx->progress_nr = 0;
+	ctx->progress_total = ctx->ref_array.nr;
+	if (ctx->opts.show_progress)
+		ctx->progress = start_progress(_("Preparing object walk"),
+					       ctx->progress_total);
 	for (size_t i = 0; i < ctx->ref_array.nr; i++) {
 		struct ref_array_item *item = ctx->ref_array.items[i];
 		add_pending_oid(&revs, NULL, &item->objectname, add_flags);
 		display_progress(ctx->progress, ++(ctx->progress_nr));
 	}
+	stop_progress(&ctx->progress);
 
+	ctx->progress_nr = 0;
+	ctx->progress_total = 0;
+	if (ctx->opts.show_progress)
+		ctx->progress = start_progress(_("Walking objects"), 0);
 	walk_objects_by_path(&info);
+	stop_progress(&ctx->progress);
 
 	release_revisions(&revs);
 	trace2_region_leave("survey", "phase/objects", ctx->repo);

t/t8100-git-survey.sh

@@ -25,6 +25,11 @@ test_expect_success 'create a semi-interesting repo' '
 	git update-ref -d refs/tags/two
 '
 
+test_expect_success 'git survey --progress' '
+	GIT_PROGRESS_DELAY=0 git survey --all-refs --progress >out 2>err &&
+	grep "Preparing object walk" err
+'
+
 test_expect_success 'git survey (default)' '
 	git survey --all-refs >out 2>err &&
 	test_line_count = 0 err &&