| /* |
| * 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.step.fs; |
| |
| import com.facebook.buck.step.ExecutionContext; |
| import com.facebook.buck.step.Step; |
| import com.facebook.buck.util.ProjectFilesystem; |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| public class RmStep implements Step { |
| |
| private final Path patternToDelete; |
| private final boolean shouldForceDeletion; |
| private final boolean shouldRecurse; |
| |
| public RmStep(String patternToDelete, boolean shouldForceDeletion) { |
| this(patternToDelete, shouldForceDeletion, false /* shouldRecurse */); |
| } |
| |
| public RmStep(String patternToDelete, |
| boolean shouldForceDeletion, |
| boolean shouldRecurse) { |
| this(Paths.get(patternToDelete), shouldForceDeletion, shouldRecurse); |
| } |
| |
| public RmStep(Path patternToDelete, |
| boolean shouldForceDeletion, |
| boolean shouldRecurse) { |
| this.patternToDelete = Preconditions.checkNotNull(patternToDelete); |
| this.shouldForceDeletion = shouldForceDeletion; |
| this.shouldRecurse = shouldRecurse; |
| } |
| |
| public ImmutableList<String> getShellCommand(ExecutionContext context) { |
| ImmutableList.Builder<String> args = ImmutableList.builder(); |
| args.add("rm"); |
| |
| if (shouldRecurse) { |
| args.add("-r"); |
| } |
| |
| if (shouldForceDeletion) { |
| args.add("-f"); |
| } |
| |
| Path absolutePath = context.getProjectFilesystem().resolve(patternToDelete); |
| args.add(absolutePath.toString()); |
| |
| return args.build(); |
| } |
| |
| @Override |
| public String getShortName() { |
| return "rm"; |
| } |
| |
| @Override |
| public int execute(ExecutionContext context) { |
| ProjectFilesystem projectFilesystem = context.getProjectFilesystem(); |
| if (shouldRecurse) { |
| // Delete a folder recursively |
| try { |
| projectFilesystem.rmdir(patternToDelete.toString()); |
| } catch (IOException e) { |
| if (shouldForceDeletion) { |
| return 0; |
| } |
| e.printStackTrace(context.getStdErr()); |
| return 1; |
| } |
| } else { |
| // Delete a single file |
| File file = projectFilesystem.resolve(patternToDelete).toAbsolutePath().toFile(); |
| if (!file.delete() && !shouldForceDeletion) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| public String getDescription(ExecutionContext context) { |
| return Joiner.on(" ").join(getShellCommand(context)); |
| } |
| } |