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Issue 12086110: Use the dart:async Stream API thoroughly in Pub. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 10 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 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. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 library hosted_source; 5 library hosted_source;
6 6
7 import 'dart:async'; 7 import 'dart:async';
8 import 'dart:io' as io; 8 import 'dart:io' as io;
9 import 'dart:json' as json; 9 import 'dart:json' as json;
10 import 'dart:uri'; 10 import 'dart:uri';
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70 70
71 log.message('Downloading $id...'); 71 log.message('Downloading $id...');
72 72
73 // Download and extract the archive to a temp directory. 73 // Download and extract the archive to a temp directory.
74 var tempDir; 74 var tempDir;
75 return Future.wait([ 75 return Future.wait([
76 httpClient.send(new http.Request("GET", Uri.parse(fullUrl))) 76 httpClient.send(new http.Request("GET", Uri.parse(fullUrl)))
77 .then((response) => response.stream), 77 .then((response) => response.stream),
78 systemCache.createTempDir() 78 systemCache.createTempDir()
79 ]).then((args) { 79 ]).then((args) {
80 var stream = streamToInputStream(args[0]); 80 var stream = args[0];
81 tempDir = args[1]; 81 tempDir = args[1];
82 return timeout(extractTarGz(stream, tempDir), HTTP_TIMEOUT, 82 return timeout(extractTarGz(stream, tempDir), HTTP_TIMEOUT,
83 'fetching URL "$fullUrl"'); 83 'fetching URL "$fullUrl"');
84 }).then((_) { 84 }).then((_) {
85 // Now that the install has succeeded, move it to the real location in 85 // Now that the install has succeeded, move it to the real location in
86 // the cache. This ensures that we don't leave half-busted ghost 86 // the cache. This ensures that we don't leave half-busted ghost
87 // directories in the user's pub cache if an install fails. 87 // directories in the user's pub cache if an install fails.
88 return renameDir(tempDir, destPath); 88 return renameDir(tempDir, destPath);
89 }).then((_) => true); 89 }).then((_) => true);
90 } 90 }
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159 159
160 var name = description["name"]; 160 var name = description["name"];
161 if (name is! String) { 161 if (name is! String) {
162 throw new FormatException("The 'name' key must have a string value."); 162 throw new FormatException("The 'name' key must have a string value.");
163 } 163 }
164 164
165 var url = description.containsKey("url") ? description["url"] : defaultUrl; 165 var url = description.containsKey("url") ? description["url"] : defaultUrl;
166 return new Pair<String, String>(name, url); 166 return new Pair<String, String>(name, url);
167 } 167 }
168 } 168 }
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