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Use Transform API for weaving instead of hooking into tasks
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Can Elmas
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Can Elmas
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Sep 3, 2017
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150
let-plugin/src/main/groovy/com/canelmas/let/LetTransform.groovy
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| /* | ||
| * Copyright (C) 2017 Can Elmas | ||
| * | ||
| * 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 com.canelmas.let | ||
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| import com.android.annotations.NonNull | ||
| import com.android.build.api.transform.* | ||
| import com.google.common.base.Joiner | ||
| import com.google.common.base.Strings | ||
| import com.google.common.collect.Lists | ||
| import com.google.common.collect.Sets | ||
| import org.aspectj.bridge.IMessage | ||
| import org.aspectj.bridge.MessageHandler | ||
| import org.aspectj.tools.ajc.Main | ||
| import org.gradle.api.GradleException | ||
| import org.gradle.api.Project | ||
| import org.gradle.api.logging.Logger | ||
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| class LetTransform extends Transform { | ||
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| private Project project | ||
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| LetTransform(Project project) { | ||
| this.project = project | ||
| } | ||
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| @Override | ||
| void transform(TransformInvocation transformInvocation) throws TransformException, InterruptedException, IOException { | ||
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| List<File> files = Lists.newArrayList() | ||
| List<File> classpathFiles = Lists.newArrayList() | ||
| Logger logger = project.logger | ||
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| TransformOutputProvider outputProvider = transformInvocation.getOutputProvider() | ||
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| // clean | ||
| outputProvider.deleteAll() | ||
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| // Referenced Inputs to classpath | ||
| for (TransformInput input : transformInvocation.getReferencedInputs()) { | ||
| input.directoryInputs.each { | ||
| classpathFiles.add(it.file) | ||
| } | ||
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| input.jarInputs.each { | ||
| classpathFiles.add(it.file) | ||
| } | ||
| } | ||
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| // Scope inputs | ||
| for (TransformInput input : transformInvocation.getInputs()) { | ||
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| for (DirectoryInput folder : input.directoryInputs) { | ||
| files.add(folder.file) | ||
| } | ||
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| for (JarInput jar : input.jarInputs) { | ||
| files.add(jar.file) | ||
| } | ||
| } | ||
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| // Evaluate class paths | ||
| final String inpath = Joiner.on(File.pathSeparator).join(files) | ||
| final String classpath = Joiner.on(File.pathSeparator).join( | ||
| classpathFiles.collect { it.absolutePath }) | ||
| final String bootpath = Joiner.on(File.pathSeparator).join(project.android.bootClasspath) | ||
| final File output = outputProvider.getContentLocation("main", outputTypes, Sets.immutableEnumSet(QualifiedContent.Scope.PROJECT), Format.DIRECTORY) | ||
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| // Weaving args | ||
| def args = [ | ||
| "-source", "1.6", | ||
| "-target", "1.6", | ||
| "-showWeaveInfo", | ||
| "-inpath", inpath, | ||
| "-d", output.absolutePath, | ||
| "-bootclasspath", bootpath] | ||
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| // Append classpath argument if any | ||
| if (!Strings.isNullOrEmpty(classpath)) { | ||
| args << '-classpath' | ||
| args << classpath | ||
| } | ||
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| // run aspectj | ||
| MessageHandler handler = new MessageHandler(true) | ||
| new Main().run(args as String[], handler) | ||
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| for (IMessage message : handler.getMessages(null, true)) { | ||
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| if (IMessage.ERROR.isSameOrLessThan(message.kind)) { | ||
| logger.error(message.message, message.thrown) | ||
| throw new GradleException(message.message, message.thrown) | ||
| } else if (IMessage.WARNING.isSameOrLessThan(message.kind)) { | ||
| logger.warn message.message | ||
| } else if (IMessage.DEBUG.isSameOrLessThan(message.kind)) { | ||
| logger.info message.message | ||
| } else { | ||
| logger.debug message.message | ||
| } | ||
| } | ||
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| } | ||
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| @NonNull | ||
| @Override | ||
| String getName() { | ||
| "let" | ||
| } | ||
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| @NonNull | ||
| @Override | ||
| Set<QualifiedContent.ContentType> getInputTypes() { | ||
| return Sets.immutableEnumSet(QualifiedContent.DefaultContentType.CLASSES) | ||
| } | ||
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| @NonNull | ||
| @Override | ||
| Set<QualifiedContent.Scope> getScopes() { | ||
| return Sets.immutableEnumSet(QualifiedContent.Scope.PROJECT, | ||
| QualifiedContent.Scope.EXTERNAL_LIBRARIES) | ||
| } | ||
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| @Override | ||
| Set<QualifiedContent.Scope> getReferencedScopes() { | ||
| return Sets.immutableEnumSet( | ||
| QualifiedContent.Scope.SUB_PROJECTS, | ||
| QualifiedContent.Scope.EXTERNAL_LIBRARIES, | ||
| QualifiedContent.Scope.PROVIDED_ONLY | ||
| ) | ||
| } | ||
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| @Override | ||
| boolean isIncremental() { | ||
| false | ||
| } | ||
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| } |