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3.0.0 is coming out with BabelJS Built IN\!
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137 changes: 137 additions & 0 deletions
137
asset-pipeline-core/src/main/groovy/asset/pipeline/processors/BabelJsProcessor.groovy
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| /* | ||
| * Copyright 2014 the original author or authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package asset.pipeline.processors | ||
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| import asset.pipeline.AssetFile | ||
| import groovy.util.logging.Commons | ||
| import jdk.nashorn.api.scripting.NashornException | ||
| import org.mozilla.javascript.Context | ||
| import org.mozilla.javascript.Scriptable | ||
| import asset.pipeline.AbstractProcessor | ||
| import asset.pipeline.AssetCompiler | ||
| import asset.pipeline.JsAssetFile | ||
| import asset.pipeline.AssetPipelineConfigHolder | ||
| import javax.script.Invocable | ||
| import javax.script.ScriptEngine | ||
| import javax.script.ScriptEngineManager | ||
| import javax.script.SimpleBindings | ||
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| // CoffeeScript engine will attempt to use Node.JS coffee if it is available on | ||
| // the system path. If not, it uses Mozilla Rhino to compile the CoffeeScript | ||
| // template using the javascript in-browser compiler. | ||
| @Commons | ||
| class BabelJsProcessor extends AbstractProcessor { | ||
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| static Boolean NODE_SUPPORTED | ||
| Scriptable globalScope | ||
| ClassLoader classLoader | ||
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| static ScriptEngine engine | ||
| static SimpleBindings bindings | ||
| private static final $LOCK = new Object[0] | ||
| BabelJsProcessor(AssetCompiler precompiler) { | ||
| super(precompiler) | ||
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| try { | ||
| classLoader = getClass().getClassLoader() | ||
| //Context cx = Context.enter() | ||
| //cx.setOptimizationLevel(-1) | ||
| //globalScope = cx.initStandardObjects() | ||
| loadBabelJs() | ||
| } catch(Exception e) { | ||
| throw new Exception("CoffeeScript Engine initialization failed.", e) | ||
| } finally { | ||
| try { | ||
| //Context.exit() | ||
| } catch(IllegalStateException e) { | ||
| } | ||
| } | ||
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| } | ||
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| protected void loadBabelJs() { | ||
| if(!engine) { | ||
| synchronized($LOCK) { | ||
| if(!engine) { | ||
| def babelJsResource = classLoader.getResource('asset/pipeline/babel.min.js') | ||
| engine = new ScriptEngineManager().getEngineByName("nashorn"); | ||
| bindings = new SimpleBindings(); | ||
| engine.eval(babelJsResource.getText('UTF-8'), bindings); | ||
| } | ||
| } | ||
| } | ||
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| } | ||
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| /** | ||
| * Processes an input string from a given AssetFile implementation of coffeescript and converts it to javascript | ||
| * @param input String input coffee script text to be converted to javascript | ||
| * @param AssetFile instance of the asset file from which this file came from. Not actually used currently for this implementation. | ||
| * @return String of compiled javascript | ||
| */ | ||
| String process(String input,AssetFile assetFile) { | ||
| if(!input) { | ||
| return input | ||
| } | ||
| Boolean newEcmascriptKeywordsFound = false | ||
| if(input.contains("export ") || input.contains("import ")) { | ||
| newEcmascriptKeywordsFound = true; | ||
| } | ||
| if(!newEcmascriptKeywordsFound && assetFile instanceof JsAssetFile) { | ||
| if(!AssetPipelineConfigHolder.config?.enableES6 && ! AssetPipelineConfigHolder.config?."enable-es6") { | ||
| return input | ||
| } | ||
| } | ||
| try { | ||
| def presets = "{ \"presets\": [\"es2015\",[\"stage-2\",{\"decoratorsLegacy\": true}],\"react\"], \"compact\": false }" | ||
| if(AssetPipelineConfigHolder.config?.babel?.options) { | ||
| presets = AssetPipelineConfigHolder.config?.babel?.options | ||
| } | ||
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| synchronized($LOCK) { | ||
| bindings.put("input", input); | ||
| bindings.put("optionsJson", presets); | ||
| def result = engine.eval("Babel.transform(input, JSON.parse(optionsJson)).code", bindings); | ||
| return result | ||
| } | ||
| } catch(javax.script.ScriptException ex) { | ||
| if (ex.getCause() instanceof NashornException) { | ||
| String jsStackTrace = NashornException.getScriptStackString(ex.getCause()); | ||
| throw new Exception("""BabelJs Engine compilation of javascript failed: ${ex.message} -- \n | ||
| ${input} | ||
| """,ex) | ||
| } else { | ||
| throw new Exception("""BabelJs Engine compilation of javascript failed. | ||
| $ex | ||
| """,ex) | ||
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| } | ||
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| } catch(Exception e) { | ||
| throw new Exception("""BabelJs Engine compilation of javascript failed. | ||
| $e | ||
| """,e) | ||
| } finally { | ||
| // Context.exit() | ||
| } | ||
| } | ||
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| } |
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50 changes: 50 additions & 0 deletions
50
asset-pipeline-core/src/main/groovy/asset/pipeline/processors/JsNodeInjectProcessor.groovy
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| /* | ||
| * Copyright 2014 the original author or authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package asset.pipeline.processors | ||
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| import asset.pipeline.AssetCompiler | ||
| import asset.pipeline.AssetHelper | ||
| import asset.pipeline.AssetFile | ||
| import asset.pipeline.AbstractProcessor | ||
| import java.util.regex.Pattern | ||
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| import static asset.pipeline.utils.net.Urls.isRelative | ||
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| /** | ||
| * This Processor iterates over a js file looking for asset_path directive sand | ||
| * replaces their path with absolute paths based on the configured. | ||
| * In precompiler mode the URLs are also cache digested. | ||
| * | ||
| * @author David Estes | ||
| */ | ||
| class JsNodeInjectProcessor extends AbstractProcessor { | ||
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| JsNodeInjectProcessor(final AssetCompiler precompiler) { | ||
| super(precompiler) | ||
| } | ||
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| String process(final String inputText, final AssetFile assetFile) { | ||
| // if(!assetFile.baseFile) { | ||
| return "var process = process || {env: {NODE_ENV: \"development\"}};\n${inputText}" | ||
| // } else { | ||
| // return inputText | ||
| // } | ||
| } | ||
| } |
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