| /* |
| * 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.Charsets; |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Supplier; |
| import com.google.common.base.Suppliers; |
| import com.google.common.io.Files; |
| |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| public class WriteFileStep implements Step { |
| |
| private final Supplier<String> content; |
| private final Path outputPath; |
| |
| public WriteFileStep(String content, String outputPath) { |
| this(Suppliers.ofInstance(content), Paths.get(outputPath)); |
| } |
| |
| public WriteFileStep(String content, Path outputPath) { |
| this(Suppliers.ofInstance(content), outputPath); |
| } |
| |
| public WriteFileStep(Supplier<String> content, String outputPath) { |
| this(content, Paths.get(outputPath)); |
| } |
| |
| public WriteFileStep(Supplier<String> content, Path outputPath) { |
| this.content = Preconditions.checkNotNull(content); |
| this.outputPath = Preconditions.checkNotNull(outputPath); |
| } |
| |
| @Override |
| public int execute(ExecutionContext context) { |
| try { |
| // echo by default writes a trailing new line and so should we. |
| Files.write(content.get() + "\n", |
| context.getProjectFilesystem().getFileForRelativePath(outputPath), |
| Charsets.UTF_8); |
| return 0; |
| } catch (IOException e) { |
| e.printStackTrace(context.getStdErr()); |
| return 1; |
| } |
| } |
| |
| @Override |
| public String getShortName() { |
| return "write_file"; |
| } |
| |
| @Override |
| public String getDescription(ExecutionContext context) { |
| return String.format("echo %s > %s", content.get(), outputPath); |
| } |
| |
| } |