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// Copyright 2016 The Chromium Authors. 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:async';
import 'dart:convert';
import 'dart:io';
import 'package:args/args.dart';
import 'package:path/path.dart' as path;
import 'package:flutter_devicelab/framework/manifest.dart';
import 'package:flutter_devicelab/framework/runner.dart';
import 'package:flutter_devicelab/framework/utils.dart';
List<String> _taskNames = <String>[];
/// Runs tasks.
///
/// The tasks are chosen depending on the command-line options
/// (see [_argParser]).
Future<void> main(List<String> rawArgs) async {
ArgResults args;
try {
args = _argParser.parse(rawArgs);
} on FormatException catch (error) {
stderr.writeln('${error.message}\n');
stderr.writeln('Usage:\n');
stderr.writeln(_argParser.usage);
exitCode = 1;
return;
}
if (!args.wasParsed('task')) {
if (args.wasParsed('stage')) {
final String stageName = args['stage'];
final List<ManifestTask> tasks = loadTaskManifest().tasks;
for (ManifestTask task in tasks) {
if (task.stage == stageName)
_taskNames.add(task.name);
}
} else if (args.wasParsed('all')) {
final List<ManifestTask> tasks = loadTaskManifest().tasks;
for (ManifestTask task in tasks) {
_taskNames.add(task.name);
}
}
}
if (_taskNames.isEmpty) {
stderr.writeln('Failed to find tasks to run based on supplied options.');
exitCode = 1;
return;
}
final bool silent = args['silent'];
for (String taskName in _taskNames) {
section('Running task "$taskName"');
final Map<String, dynamic> result = await runTask(taskName, silent: silent);
if (!result['success'])
exitCode = 1;
print('Task result:');
print(const JsonEncoder.withIndent(' ').convert(result));
section('Finished task "$taskName"');
}
}
/// Command-line options for the `run.dart` command.
final ArgParser _argParser = ArgParser()
..addMultiOption(
'task',
abbr: 't',
splitCommas: true,
help: 'Either:\n'
' - the name of a task defined in manifest.yaml. Example: complex_layout__start_up.\n'
' - the path to a Dart file corresponding to a task, which resides in bin/tasks. Example: bin/tasks/complex_layout__start_up.dart.\n'
'\n'
'This option may be repeated to specify multiple tasks.',
callback: (List<String> value) {
for (String nameOrPath in value) {
final List<String> fragments = path.split(nameOrPath);
final bool isDartFile = fragments.last.endsWith('.dart');
if (fragments.length == 1 && !isDartFile) {
// Not a path
_taskNames.add(nameOrPath);
} else if (!isDartFile || fragments.length != 3 || !_listsEqual(<String>['bin', 'tasks'], fragments.take(2).toList())) {
// Unsupported executable location
throw FormatException('Invalid value for option -t (--task): $nameOrPath');
} else {
_taskNames.add(path.withoutExtension(fragments.last));
}
}
},
)
..addOption(
'stage',
abbr: 's',
help: 'Name of the stage. Runs all tasks for that stage. '
'The tasks and their stages are read from manifest.yaml.',
)
..addFlag(
'all',
abbr: 'a',
help: 'Runs all tasks defined in manifest.yaml.',
)
..addMultiOption(
'test',
hide: true,
splitCommas: true,
callback: (List<String> value) {
if (value.isNotEmpty) {
throw const FormatException(
'Invalid option --test. Did you mean --task (-t)?',
);
}
},
)
..addFlag(
'silent',
negatable: true,
defaultsTo: false,
);
bool _listsEqual(List<dynamic> a, List<dynamic> b) {
if (a.length != b.length)
return false;
for (int i = 0; i < a.length; i++) {
if (a[i] != b[i])
return false;
}
return true;
}