| /* |
| * 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.google.common.collect.ImmutableMap; |
| |
| import java.util.Map; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Parser for ProGuard-generated mapping files. Currently only handles class mapping. |
| */ |
| public class ProguardMapping { |
| private static Pattern CLASS_LINE_PATTERN = Pattern.compile("([\\w.$]+) -> ([\\w.$]+):"); |
| |
| public static Map<String, String> readClassMapping(Iterable<String> lines) { |
| ImmutableMap.Builder<String, String> classMappingBuilder = ImmutableMap.builder(); |
| |
| for (String line : lines) { |
| if (line.charAt(0) == ' ') { |
| // This is a member mapping, which we don't handle yet. |
| continue; |
| } |
| |
| Matcher matcher = CLASS_LINE_PATTERN.matcher(line); |
| if (!matcher.matches()) { |
| throw new IllegalArgumentException("Invalid line in proguard mapping: " + line); |
| } |
| |
| classMappingBuilder.put(matcher.group(1), matcher.group(2)); |
| } |
| |
| return classMappingBuilder.build(); |
| } |
| } |