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| 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, 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 /// Development server that compiles Dart to JS on the fly. | 5 /// Development server that compiles Dart to JS on the fly. |
| 6 library dev_compiler.src.server; | 6 library dev_compiler.src.server; |
| 7 | 7 |
| 8 import 'dart:async'; | 8 import 'dart:async'; |
| 9 import 'dart:convert'; | 9 import 'dart:convert'; |
| 10 import 'dart:io'; | 10 import 'dart:io'; |
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| 254 var handler = const shelf.Pipeline() | 254 var handler = const shelf.Pipeline() |
| 255 .addMiddleware(rebuildAndCache) | 255 .addMiddleware(rebuildAndCache) |
| 256 .addHandler(shelf_static.createStaticHandler(outDir, | 256 .addHandler(shelf_static.createStaticHandler(outDir, |
| 257 defaultDocument: _entryPath)); | 257 defaultDocument: _entryPath)); |
| 258 await shelf.serve(handler, host, port); | 258 await shelf.serve(handler, host, port); |
| 259 print('Serving $_entryPath at http://$host:$port/'); | 259 print('Serving $_entryPath at http://$host:$port/'); |
| 260 compiler.run(); | 260 compiler.run(); |
| 261 } | 261 } |
| 262 | 262 |
| 263 shelf.Handler rebuildAndCache(shelf.Handler handler) => (request) { | 263 shelf.Handler rebuildAndCache(shelf.Handler handler) => (request) { |
| 264 print('requested $GREEN_COLOR${request.url}$NO_COLOR'); | 264 print('requested $GREEN_COLOR${request.url}$NO_COLOR'); |
| 265 // Trigger recompile only when requesting the HTML page. | 265 // Trigger recompile only when requesting the HTML page. |
| 266 var segments = request.url.pathSegments; | 266 var segments = request.url.pathSegments; |
| 267 bool isEntryPage = segments.length == 0 || segments[0] == _entryPath; | 267 bool isEntryPage = segments.length == 0 || segments[0] == _entryPath; |
| 268 if (isEntryPage) compiler._runAgain(); | 268 if (isEntryPage) compiler._runAgain(); |
| 269 | 269 |
| 270 // To help browsers cache resources that don't change, we serve these | 270 // To help browsers cache resources that don't change, we serve these |
| 271 // resources by adding a query parameter containing their hash: | 271 // resources by adding a query parameter containing their hash: |
| 272 // /{path-to-file.js}?____cached={hash} | 272 // /{path-to-file.js}?____cached={hash} |
| 273 var hash = request.url.queryParameters['____cached']; | 273 var hash = request.url.queryParameters['____cached']; |
| 274 var response = handler(request); | 274 var response = handler(request); |
| 275 var policy = hash != null ? 'max-age=${24 * 60 * 60}' : 'no-cache'; | 275 var policy = hash != null ? 'max-age=${24 * 60 * 60}' : 'no-cache'; |
| 276 var headers = {'cache-control': policy}; | 276 var headers = {'cache-control': policy}; |
| 277 if (hash != null) { | 277 if (hash != null) { |
| 278 // Note: the cache-control header should be enough, but this doesn't hurt | 278 // Note: the cache-control header should be enough, but this doesn't |
| 279 // and can help renew the policy after it expires. | 279 // hurt and can help renew the policy after it expires. |
| 280 headers['ETag'] = hash; | 280 headers['ETag'] = hash; |
| 281 } | 281 } |
| 282 return response.change(headers: headers); | 282 return response.change(headers: headers); |
| 283 }; | 283 }; |
| 284 } | 284 } |
| 285 | 285 |
| 286 UriResolver _createImplicitEntryResolver(String entryPath) { | 286 UriResolver _createImplicitEntryResolver(String entryPath) { |
| 287 var entry = path.absolute(SourceResolverOptions.implicitHtmlFile); | 287 var entry = path.absolute(SourceResolverOptions.implicitHtmlFile); |
| 288 var src = path.absolute(entryPath); | 288 var src = path.absolute(entryPath); |
| 289 var provider = new MemoryResourceProvider(); | 289 var provider = new MemoryResourceProvider(); |
| 290 provider.newFile( | 290 provider.newFile( |
| 291 entry, '<body><script type="application/dart" src="$src"></script>'); | 291 entry, '<body><script type="application/dart" src="$src"></script>'); |
| 292 return new _ExistingSourceUriResolver(new ResourceUriResolver(provider)); | 292 return new _ExistingSourceUriResolver(new ResourceUriResolver(provider)); |
| 293 } | 293 } |
| 294 | 294 |
| 295 /// A UriResolver that continues to the next one if it fails to find an existing | 295 /// A UriResolver that continues to the next one if it fails to find an existing |
| 296 /// source file. This is unlike normal URI resolvers, that always return | 296 /// source file. This is unlike normal URI resolvers, that always return |
| 297 /// something, even if it is a non-existing file. | 297 /// something, even if it is a non-existing file. |
| 298 class _ExistingSourceUriResolver implements UriResolver { | 298 class _ExistingSourceUriResolver implements UriResolver { |
| 299 final UriResolver resolver; | 299 final UriResolver resolver; |
| 300 _ExistingSourceUriResolver(this.resolver); | 300 _ExistingSourceUriResolver(this.resolver); |
| 301 | 301 |
| 302 Source resolveAbsolute(Uri uri, [Uri actualUri]) { | 302 Source resolveAbsolute(Uri uri, [Uri actualUri]) { |
| 303 var src = resolver.resolveAbsolute(uri, actualUri); | 303 var src = resolver.resolveAbsolute(uri, actualUri); |
| 304 return src.exists() ? src : null; | 304 return src.exists() ? src : null; |
| 305 } | 305 } |
| 306 |
| 306 Uri restoreAbsolute(Source source) => resolver.restoreAbsolute(source); | 307 Uri restoreAbsolute(Source source) => resolver.restoreAbsolute(source); |
| 307 } | 308 } |
| 308 | 309 |
| 309 final _log = new Logger('dev_compiler.src.server'); | 310 final _log = new Logger('dev_compiler.src.server'); |
| 310 final _earlyErrorResult = new CheckerResults(const [], null, true); | 311 final _earlyErrorResult = new CheckerResults(const [], null, true); |
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Chromium Code Reviews
Issue 1266483003:
format with dart_style 0.2.0-rc.3 (Closed)
Base URL: git@github.com:dart-lang/dev_compiler.git@master