blob: f8a987ad74eda8864f29ce2720277dc112bd60c6 [file] [log] [blame]
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:io';
import 'package:path/path.dart';
import 'main.dart' as performance;
// Local driver for performance measurement
void main(List<String> args) {
* Parse arguments
if (args.length < 3) printHelp('Expected 3 arguments');
var gitDir = Directory(args[0]);
if (!gitDir.existsSync()) printHelp('${gitDir.path} does not exist');
if (!Directory(join(gitDir.path, '.git')).existsSync()) {
printHelp('${gitDir.path} does not appear to be a local git repository');
var branch = args[1];
var inputFile = File(args[2]);
if (!inputFile.existsSync()) printHelp('${inputFile.path} does not exist');
* Create a new temp directory
var tmpDir =
Directory(join(Directory.systemTemp.path, 'analysis_server_perf_target'));
if (!tmpDir.path.contains('tmp')) throw 'invalid tmp directory\n $tmpDir';
print('Extracting target analysis environment into\n ${tmpDir.path}');
if (tmpDir.existsSync()) tmpDir.deleteSync(recursive: true);
tmpDir.createSync(recursive: true);
* Setup the initial target source in the temp directory
var tarFilePath = join(tmpDir.path, 'targetSrc.tar');
var result = Process.runSync('git', ['archive', branch, '-o', tarFilePath],
workingDirectory: gitDir.path);
if (result.exitCode != 0) throw 'failed to obtain target source: $result';
var tmpSrcDirPath = join(tmpDir.path, 'targetSrc');
result = Process.runSync('tar', ['-xf', tarFilePath],
workingDirectory: tmpSrcDirPath);
if (result.exitCode != 0) throw 'failed to extract target source: $result';
* Symlink the out or xcodebuild directory
var outDirName = 'out';
if (!Directory(join(gitDir.path, outDirName)).existsSync()) {
outDirName = 'xcodebuild';
if (!Directory(join(gitDir.path, outDirName)).existsSync()) {
throw 'failed to find out or xcodebuild directory';
result = Process.runSync('ln',
['-s', join(gitDir.path, outDirName), join(tmpSrcDirPath, outDirName)]);
if (result.exitCode != 0) throw 'failed to link out or xcodebuild: $result';
* Collect arguments
var perfArgs = [
for (var index = 3; index < args.length; ++index) {
perfArgs.add(args[index].replaceAll('@tmpSrcDir@', tmpSrcDirPath));
* Launch the performance analysis tool
/// Print help and exit
void printHelp([String? errMsg]) {
if (errMsg != null) {
print('Error: $errMsg');
print('''Required arguments: <gitDir> <branch> <inputFile>
gitDir = a path to the git repository containing the initial target source
branch = the branch containing the initial target source
inputFile = the instrumentation or log file
Optional arguments:''');