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Issue 896623005: Use native async/await support in pub. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Code review changes Created 5 years, 10 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 library descriptor.tar;
6
7 import 'dart:async';
8
9 import 'package:path/path.dart' as path;
10 import 'package:scheduled_test/scheduled_test.dart';
11 import 'package:scheduled_test/descriptor.dart';
12
13 import '../../lib/src/io.dart';
14
15 /// Describes a tar file and its contents.
16 class TarFileDescriptor extends DirectoryDescriptor implements
17 ReadableDescriptor {
18 TarFileDescriptor(String name, List<Descriptor> contents)
19 : super(name, contents);
20
21 /// Creates the files and directories within this tar file, then archives
22 /// them, compresses them, and saves the result to [parentDir].
23 Future<String> create([String parent]) => schedule(() {
24 if (parent == null) parent = defaultRoot;
25 return withTempDir((tempDir) {
26 return Future.wait(contents.map((entry) {
27 return entry.create(tempDir);
28 })).then((_) {
29 var createdContents =
30 listDir(tempDir, recursive: true, includeHidden: true);
31 return createTarGz(createdContents, baseDir: tempDir).toBytes();
32 }).then((bytes) {
33 var file = path.join(parent, name);
34 writeBinaryFile(file, bytes);
35 return file;
36 });
37 });
38 }, 'creating tar file:\n${describe()}');
39
40 /// Validates that the `.tar.gz` file at [path] contains the expected
41 /// contents.
42 Future validate([String parent]) {
43 throw new UnimplementedError("TODO(nweiz): implement this");
44 }
45
46 Stream<List<int>> read() {
47 return new Stream<List<int>>.fromFuture(withTempDir((tempDir) {
48 return create(
49 tempDir).then((_) => readBinaryFile(path.join(tempDir, name)));
50 }));
51 }
52 }
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