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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 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 | 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 barback.test.transformer.check_content_and_rename; | 5 library barback.test.transformer.check_content_and_rename; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 | 8 |
9 import 'package:barback/barback.dart'; | 9 import 'package:barback/barback.dart'; |
10 | 10 |
11 import 'mock.dart'; | 11 import 'mock.dart'; |
12 | 12 |
13 /// A transformer that checks the extension and content of an asset, then | 13 /// A transformer that checks the extension and content of an asset, then |
14 /// produces a new asset with a new extension and new content. | 14 /// produces a new asset with a new extension and new content. |
15 class CheckContentAndRenameTransformer extends MockTransformer { | 15 class CheckContentAndRenameTransformer extends MockTransformer { |
16 final String oldExtension; | 16 final String oldExtension; |
17 final String oldContent; | 17 final String oldContent; |
18 final String newExtension; | 18 final String newExtension; |
19 final String newContent; | 19 final String newContent; |
20 | 20 |
21 CheckContentAndRenameTransformer({this.oldExtension, this.oldContent, | 21 CheckContentAndRenameTransformer( |
22 this.newExtension, this.newContent}) { | 22 {this.oldExtension, |
| 23 this.oldContent, |
| 24 this.newExtension, |
| 25 this.newContent}) { |
23 assert(oldExtension != null); | 26 assert(oldExtension != null); |
24 assert(oldContent != null); | 27 assert(oldContent != null); |
25 assert(newExtension != null); | 28 assert(newExtension != null); |
26 assert(newContent != null); | 29 assert(newContent != null); |
27 } | 30 } |
28 | 31 |
29 bool doIsPrimary(AssetId id) => id.extension == '.$oldExtension'; | 32 bool doIsPrimary(AssetId id) => id.extension == '.$oldExtension'; |
30 | 33 |
31 Future doApply(Transform transform) { | 34 Future doApply(Transform transform) { |
32 return getPrimary(transform).then((input) { | 35 return getPrimary(transform).then((input) { |
33 return input.readAsString().then((contents) { | 36 return input.readAsString().then((contents) { |
34 if (contents != oldContent) return; | 37 if (contents != oldContent) return; |
35 | 38 |
36 transform.addOutput(new Asset.fromString( | 39 transform.addOutput(new Asset.fromString( |
37 input.id.changeExtension('.$newExtension'), newContent)); | 40 input.id.changeExtension('.$newExtension'), newContent)); |
38 }); | 41 }); |
39 }); | 42 }); |
40 } | 43 } |
41 } | 44 } |
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