| /* |
| * 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.google.common.base.Function; |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Preconditions; |
| |
| import java.io.IOException; |
| import java.nio.file.Path; |
| |
| public class SymlinkFileStep implements Step { |
| |
| private final String source; |
| private final String target; |
| |
| public SymlinkFileStep(String source, String target) { |
| this.source = Preconditions.checkNotNull(source); |
| this.target = Preconditions.checkNotNull(target); |
| } |
| |
| @Override |
| public String getShortName() { |
| return "symlink_file"; |
| } |
| |
| @Override |
| public String getDescription (ExecutionContext context) { |
| Function<String, Path> pathRelativizer = context.getProjectFilesystem().getPathRelativizer(); |
| // Always symlink to an absolute path so the symlink is sure to be read correctly. |
| return Joiner.on(" ").join( |
| "ln", |
| "-f", |
| "-s", |
| pathRelativizer.apply(source), |
| pathRelativizer.apply(target)); |
| } |
| |
| @Override |
| public int execute(ExecutionContext context) { |
| Function<String, Path> pathRelativizer = context.getProjectFilesystem().getPathRelativizer(); |
| Path targetPath = pathRelativizer.apply(target); |
| Path sourcePath = pathRelativizer.apply(source); |
| try { |
| context.getProjectFilesystem().createSymLink(sourcePath, targetPath, true); |
| return 0; |
| } catch (IOException e) { |
| e.printStackTrace(context.getStdErr()); |
| return 1; |
| } |
| } |
| } |