blob: fff4d34055dce684c3a9e6f61bd7a23799192fde [file] [log] [blame]
// Copyright (c) 2019, 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 'dart:convert';
import 'package:args/command_runner.dart';
import 'package:dart2js_info/info.dart';
import 'package:dart2js_info/json_info_codec.dart';
import 'package:dart2js_info/src/io.dart';
import 'inject_text.dart';
import 'usage_exception.dart';
/// Converts a dump-info file emitted by dart2js in binary format to JSON.
class ToJsonCommand extends Command<void> with PrintUsageException {
final String name = "to_json";
final String description = "Convert any info file to JSON format.";
ToJsonCommand() {
negatable: false,
help: 'Whether to generate an older version of the JSON format.\n\n'
'By default files are converted to the latest JSON format, but\n'
'passing `--compat-mode` will produce a JSON file that may still\n'
'work in the visualizer tool at:\n'
'This option enables `--inject-text` as well, but note that\n'
'files produced in this mode do not contain all the data\n'
'available in the input file.');
void run() async {
if ( < 1) {
usageException('Missing argument: <input-info>');
String filename =[0];
bool isBackwardCompatible = argResults['compat-mode'];
AllInfo info = await infoFromFile(filename);
if (isBackwardCompatible || argResults['inject-text']) {
var json = new AllInfoJsonCodec(isBackwardCompatible: isBackwardCompatible)
String outputFilename = argResults['out'] ?? '$filename.json';
new File(outputFilename)
.writeAsStringSync(const JsonEncoder.withIndent(" ").convert(json));