| // Copyright 2018 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.exec; |
| |
| import com.google.common.base.Splitter; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Maps; |
| import com.google.devtools.build.lib.util.RegexFilter; |
| import com.google.devtools.build.lib.util.RegexFilter.RegexFilterConverter; |
| import com.google.devtools.common.options.Converter; |
| import com.google.devtools.common.options.OptionsParsingException; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** A converter for options of the form RegexFilter=String. */ |
| public class RegexFilterAssignmentConverter |
| implements Converter<Map.Entry<RegexFilter, List<String>>> { |
| |
| private final Splitter splitter = Splitter.on(','); |
| |
| @Override |
| public Map.Entry<RegexFilter, List<String>> convert(String input) throws OptionsParsingException { |
| int pos = input.indexOf('='); |
| if (pos <= 0) { |
| throw new OptionsParsingException( |
| "Must be in the form of a 'regex=value[,value]' assignment"); |
| } |
| List<String> value = splitter.splitToList(input.substring(pos + 1)); |
| if (value.contains("")) { |
| // If the list contains exactly the empty string, it means an empty value was passed and we |
| // should instead return an empty list. |
| if (value.size() == 1) { |
| value = ImmutableList.of(); |
| } else { |
| throw new OptionsParsingException( |
| "Values must not contain empty strings or leading / trailing commas"); |
| } |
| } |
| RegexFilter filter = new RegexFilterConverter().convert(input.substring(0, pos)); |
| return Maps.immutableEntry(filter, value); |
| } |
| |
| @Override |
| public String getTypeDescription() { |
| return "a '<RegexFilter>=value[,value]' assignment"; |
| } |
| } |