| // Copyright 2016 The Bazel Authors. All rights reserved. |
| // |
| // 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.google.devtools.build.lib.windows.runfiles; |
| |
| import java.io.BufferedReader; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.nio.charset.Charset; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** Utility class for getting runfiles in tests on Windows. */ |
| public final class WindowsRunfiles { |
| |
| private static Map<String, String> runfiles; |
| |
| /** |
| * Returns the actual path on the system corresponding to a given runfiles path. On Unix-like with |
| * the symlink tree, this function could just returns the runfiles path and let the symlinks do |
| * the actual resolution. |
| */ |
| public static String getRunfile(String runfilesPath) throws IOException { |
| ensureRunfilesParsed(); |
| return runfiles.get(runfilesPath); |
| } |
| |
| private static synchronized void ensureRunfilesParsed() throws IOException { |
| if (runfiles != null) { |
| return; |
| } |
| |
| runfiles = new HashMap<>(); |
| InputStream fis = new FileInputStream(System.getenv("RUNFILES_MANIFEST_FILE")); |
| InputStreamReader isr = new InputStreamReader(fis, Charset.forName("UTF-8")); |
| try (BufferedReader br = new BufferedReader(isr)) { |
| String line; |
| while ((line = br.readLine()) != null) { |
| line = line.trim(); |
| if (!line.isEmpty()) { |
| // TODO(bazel-team): This is buggy when the path contains spaces, we should fix the |
| // manifest format. |
| String[] splitLine = line.split(" "); |
| if (splitLine.length != 2) { |
| throw new IllegalStateException("Runfiles manifest entry contains more than one space"); |
| } |
| |
| runfiles.put(splitLine[0], splitLine[1]); |
| } |
| } |
| } |
| } |
| } |