Java tutorial
/* * Copyright 2012-present Facebook, Inc. * * 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 com.facebook.buck.android; import com.facebook.buck.shell.ShellStep; import com.facebook.buck.step.ExecutionContext; import com.facebook.buck.util.AndroidPlatformTarget; import com.google.common.base.Objects; import com.google.common.base.Preconditions; import com.google.common.collect.ImmutableList; import com.google.common.collect.ImmutableSet; import java.nio.file.Path; import java.util.Set; public class GenProGuardConfigStep extends ShellStep { private final Path androidManifestPath; private final Set<Path> resDirectories; private final Path proguardConfigurationPath; public GenProGuardConfigStep(Path androidManifestPath, Set<Path> resDirectories, Path proguardConfigurationPath) { this.androidManifestPath = Preconditions.checkNotNull(androidManifestPath); this.resDirectories = ImmutableSet.copyOf(resDirectories); this.proguardConfigurationPath = Preconditions.checkNotNull(proguardConfigurationPath); } @Override public String getShortName() { return "generate_proguard_config"; } @Override protected ImmutableList<String> getShellCommandInternal(ExecutionContext context) { ImmutableList.Builder<String> args = ImmutableList.builder(); AndroidPlatformTarget androidPlatformTarget = context.getAndroidPlatformTarget(); args.add(androidPlatformTarget.getAaptExecutable().getAbsolutePath()).add("package"); // Specify where the ProGuard config should be written. args.add("-G").add(proguardConfigurationPath.toString()); // Add all of the res/ directories. for (Path res : resDirectories) { args.add("-S").add(res.toString()); } // Add the remaining flags. args.add("-M").add(androidManifestPath.toString()); args.add("--auto-add-overlay"); args.add("-I").add(androidPlatformTarget.getAndroidJar().getAbsolutePath()); return args.build(); } @Override public boolean equals(Object obj) { if (obj == null || !(obj instanceof GenProGuardConfigStep)) { return false; } GenProGuardConfigStep that = (GenProGuardConfigStep) obj; return Objects.equal(androidManifestPath, that.androidManifestPath) && Objects.equal(resDirectories, that.resDirectories) && Objects.equal(proguardConfigurationPath, that.proguardConfigurationPath); } @Override public int hashCode() { return Objects.hashCode(androidManifestPath, resDirectories, proguardConfigurationPath); } }