| #!/usr/bin/env dart |
| // 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. |
| |
| /// Runs io.js with dev_compiler's generated code. |
| library dev_compiler.bin.devrun; |
| |
| import 'dart:io'; |
| |
| import 'package:dev_compiler/devc.dart' show devCompilerVersion; |
| import 'package:dev_compiler/src/compiler.dart' show validateOptions, compile; |
| import 'package:dev_compiler/src/options.dart'; |
| import 'package:dev_compiler/src/runner/runtime_utils.dart' |
| show listOutputFiles, getMainModuleName; |
| import 'package:dev_compiler/src/runner/v8_runner.dart' show V8Runner; |
| |
| import 'package:path/path.dart'; |
| |
| const String _appName = 'dartdevrun'; |
| |
| void _showUsageAndExit() { |
| print('usage: ${_appName} [<options>] <file.dart>\n'); |
| print('<file.dart> is a single Dart file to run.\n'); |
| print('<options> include:\n'); |
| print(argParser.usage); |
| exit(1); |
| } |
| |
| main(List<String> args) async { |
| args = [] |
| ..add('--arrow-fn-bind-this') |
| ..addAll(args); |
| |
| CompilerOptions options; |
| |
| try { |
| options = validateOptions(args, forceOutDir: true); |
| } on FormatException catch (e) { |
| print('${e.message}\n'); |
| _showUsageAndExit(); |
| } |
| |
| if (options == null || options.help) _showUsageAndExit(); |
| if (options.version) { |
| print('${_appName} version ${devCompilerVersion}'); |
| exit(0); |
| } |
| |
| if (options.inputs.length != 1) { |
| stderr.writeln("Please only specify one input to run"); |
| _showUsageAndExit(); |
| } |
| var runner = new V8Runner(options); |
| |
| if (!compile(options)) exit(1); |
| |
| var files = await listOutputFiles(options); |
| var startStatement = 'dart_library.start("${getMainModuleName(options)}");'; |
| |
| // TODO(ochafik): Only generate the html when some flag is set. |
| await _writeHtmlRunner(options, files, startStatement); |
| |
| // Give our soul (and streams) away to iojs. |
| Process process = await runner.start(files, startStatement); |
| stdin.pipe(process.stdin); |
| stdout.addStream(process.stdout); |
| stderr.addStream(process.stderr); |
| exit(await process.exitCode); |
| } |
| |
| /// Generates an HTML file that can be used to run the output with Chrome Dev. |
| _writeHtmlRunner( |
| CompilerOptions options, List<File> files, String startStatement) async { |
| String outputDir = options.codegenOptions.outputDir; |
| String htmlOutput = join(outputDir, "run.html"); |
| await new File(htmlOutput).writeAsString(''' |
| <html><head></head><body> |
| ${files.map((f) => |
| '<script src="${relative(f.path, from: outputDir)}"></script>') |
| .join("\n")} |
| <script>$startStatement</script> |
| </body></html> |
| '''); |
| |
| stderr.writeln( |
| 'Wrote $htmlOutput. It can be opened in Chrome Dev with the following flags:\n' |
| '--js-flags="--harmony-arrow-functions ' |
| '--harmony-classes ' |
| '--harmony-computed-property-names ' |
| '--harmony-spreadcalls"' |
| '\n'); |
| } |
