mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
74 lines
2.7 KiB
Dart
74 lines
2.7 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'package:archive/archive.dart';
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import 'package:http/http.dart' as http;
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const String kDocRoot = 'dev/docs/doc';
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/// This script downloads an archive of Javadoc and objc doc for the engine from
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/// the artifact store and extracts them to the location used for Dartdoc.
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Future<void> main(List<String> args) async {
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final String engineVersion = File('bin/internal/engine.version').readAsStringSync().trim();
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final String javadocUrl = 'https://storage.googleapis.com/flutter_infra/flutter/$engineVersion/android-javadoc.zip';
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generateDocs(javadocUrl, 'javadoc', 'io/flutter/view/FlutterView.html');
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final String objcdocUrl = 'https://storage.googleapis.com/flutter_infra/flutter/$engineVersion/ios-objcdoc.zip';
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generateDocs(objcdocUrl, 'objcdoc', 'Classes/FlutterViewController.html');
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}
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/// Fetches the zip archive at the specified url.
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///
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/// Returns null if the archive fails to download after [maxTries] attempts.
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Future<Archive> fetchArchive(String url, int maxTries) async {
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List<int> responseBytes;
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for (int i = 0; i < maxTries; i++) {
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final http.Response response = await http.get(url);
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if (response.statusCode == 200) {
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responseBytes = response.bodyBytes;
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break;
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}
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stderr.writeln('Failed attempt ${i+1} to fetch $url.');
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// On failure print a short snipped from the body in case it's helpful.
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final int bodyLength = min(1024, response.body.length);
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stderr.writeln('Response status code ${response.statusCode}. Body: ' + response.body.substring(0, bodyLength));
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sleep(const Duration(seconds: 1));
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}
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return responseBytes == null ? null : ZipDecoder().decodeBytes(responseBytes);
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}
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Future<void> generateDocs(String url, String docName, String checkFile) async {
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const int maxTries = 5;
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final Archive archive = await fetchArchive(url, maxTries);
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if (archive == null) {
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stderr.writeln('Failed to fetch zip archive from: $url after $maxTries attempts. Giving up.');
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exit(1);
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}
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final Directory output = Directory('$kDocRoot/$docName');
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print('Extracting $docName to ${output.path}');
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output.createSync(recursive: true);
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for (final ArchiveFile af in archive) {
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if (!af.name.endsWith('/')) {
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final File file = File('${output.path}/${af.name}');
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file.createSync(recursive: true);
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file.writeAsBytesSync(af.content as List<int>);
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}
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}
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final File testFile = File('${output.path}/$checkFile');
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if (!testFile.existsSync()) {
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print('Expected file ${testFile.path} not found');
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exit(1);
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}
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print('$docName ready to go!');
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}
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