Devon Carew
94 lines
2.9 KiB
Dart
Executable File
94 lines
2.9 KiB
Dart
Executable File
#!/usr/bin/env dart
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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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/// Runs io.js with dev_compiler's generated code.
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library dev_compiler.bin.devrun;
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import 'dart:io';
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import 'package:dev_compiler/devc.dart' show devCompilerVersion;
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import 'package:dev_compiler/src/compiler.dart' show validateOptions, compile;
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import 'package:dev_compiler/src/options.dart';
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import 'package:dev_compiler/src/runner/runtime_utils.dart'
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show listOutputFiles, getMainModuleName;
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import 'package:dev_compiler/src/runner/v8_runner.dart' show V8Runner;
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import 'package:path/path.dart';
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const String _appName = 'dartdevrun';
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void _showUsageAndExit() {
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print('usage: ${_appName} [<options>] <file.dart>\n');
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print('<file.dart> is a single Dart file to run.\n');
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print('<options> include:\n');
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print(argParser.usage);
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exit(1);
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}
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main(List<String> args) async {
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args = []
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..add('--arrow-fn-bind-this')
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..addAll(args);
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CompilerOptions options;
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try {
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options = validateOptions(args, forceOutDir: true);
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} on FormatException catch (e) {
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print('${e.message}\n');
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_showUsageAndExit();
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}
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if (options == null || options.help) _showUsageAndExit();
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if (options.version) {
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print('${_appName} version ${devCompilerVersion}');
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exit(0);
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}
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if (options.inputs.length != 1) {
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stderr.writeln("Please only specify one input to run");
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_showUsageAndExit();
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}
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var runner = new V8Runner(options);
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if (!compile(options)) exit(1);
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var files = await listOutputFiles(options);
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var startStatement = 'dart_library.start("${getMainModuleName(options)}");';
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// TODO(ochafik): Only generate the html when some flag is set.
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await _writeHtmlRunner(options, files, startStatement);
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// Give our soul (and streams) away to iojs.
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Process process = await runner.start(files, startStatement);
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stdin.pipe(process.stdin);
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stdout.addStream(process.stdout);
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stderr.addStream(process.stderr);
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exit(await process.exitCode);
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}
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/// Generates an HTML file that can be used to run the output with Chrome Dev.
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_writeHtmlRunner(
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CompilerOptions options, List<File> files, String startStatement) async {
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String outputDir = options.codegenOptions.outputDir;
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String htmlOutput = join(outputDir, "run.html");
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await new File(htmlOutput).writeAsString('''
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<html><head></head><body>
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${files.map((f) =>
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'<script src="${relative(f.path, from: outputDir)}"></script>')
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.join("\n")}
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<script>$startStatement</script>
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</body></html>
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''');
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stderr.writeln(
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'Wrote $htmlOutput. It can be opened in Chrome Dev with the following flags:\n'
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'--js-flags="--harmony-arrow-functions '
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'--harmony-classes '
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'--harmony-computed-property-names '
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'--harmony-spreadcalls"'
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'\n');
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}
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