2017-02-21 12:56:28 +00:00
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// Copyright (c) 2017, 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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import 'dart:io' show File, exit, stderr;
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import 'dart:isolate' show RawReceivePort;
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import 'dart:convert' show JsonEncoder;
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import 'package:yaml/yaml.dart' show loadYaml;
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2022-01-10 08:26:20 +00:00
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main(List<String> rawArguments) {
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2017-02-21 12:56:28 +00:00
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var port = new RawReceivePort();
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2022-01-06 18:36:55 +00:00
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bool check = false;
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2022-01-10 08:26:20 +00:00
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String? relative;
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List<String> arguments = [];
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for (String argument in rawArguments) {
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if (argument == '--check') {
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check = true;
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} else if (argument.startsWith('--relative=')) {
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relative = argument.substring('--relative='.length);
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} else {
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arguments.add(argument);
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}
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2022-01-06 18:36:55 +00:00
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}
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2017-02-21 12:56:28 +00:00
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if (arguments.length != 2) {
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2022-01-06 18:36:55 +00:00
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stderr.writeln("Usage: yaml2json.dart input.yaml output.json [--check]");
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2017-02-21 12:56:28 +00:00
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exit(1);
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}
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2022-01-13 09:18:34 +00:00
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Uri input = new File(arguments[0]).absolute.uri;
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Uri output = new File(arguments[1]).absolute.uri;
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2022-01-10 08:26:20 +00:00
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String inputString = arguments[0];
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String outputString = arguments[1];
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if (relative != null) {
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2022-01-13 09:18:34 +00:00
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String relativeTo = new File(relative).absolute.uri.toString();
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2022-01-10 08:26:20 +00:00
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if (input.toString().startsWith(relativeTo)) {
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inputString = input.toString().substring(relativeTo.length);
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}
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if (output.toString().startsWith(relativeTo)) {
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outputString = output.toString().substring(relativeTo.length);
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}
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}
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2021-07-27 23:02:50 +00:00
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Map yaml = loadYaml(new File.fromUri(input).readAsStringSync());
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2017-11-01 12:55:42 +00:00
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Map<String, dynamic> result = new Map<String, dynamic>();
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result["comment:0"] = "NOTE: THIS FILE IS GENERATED. DO NOT EDIT.";
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result["comment:1"] =
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2022-01-10 08:26:20 +00:00
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"Instead modify '$inputString' and follow the instructions therein.";
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2017-11-01 12:55:42 +00:00
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for (String key in yaml.keys) {
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result[key] = yaml[key];
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}
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File file = new File.fromUri(output);
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2022-01-06 18:36:55 +00:00
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String text = const JsonEncoder.withIndent(" ").convert(result);
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if (check) {
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bool needsUpdate = true;
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if (file.existsSync()) {
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String existingText = file.readAsStringSync();
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needsUpdate = text != existingText;
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}
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if (needsUpdate) {
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stderr.write('''
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2022-01-10 08:26:20 +00:00
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The file $outputString is not up to date. Regenerate using
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2022-01-06 18:36:55 +00:00
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2022-01-10 08:26:20 +00:00
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dart tools/yaml2json.dart $inputString $outputString
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2022-01-06 18:36:55 +00:00
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''');
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exit(1);
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}
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} else {
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file.writeAsStringSync(text);
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}
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2017-02-21 12:56:28 +00:00
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port.close();
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}
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