| // Copyright 2014 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.analysis; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.analysis.MakeVariableExpander.ExpansionException; |
| import com.google.devtools.build.lib.analysis.config.BuildConfiguration; |
| import com.google.devtools.build.lib.packages.Package; |
| import com.google.devtools.build.lib.syntax.SkylarkDict; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| /** |
| * Implements make variable expansion for make variables that depend on the |
| * configuration and the target (not on behavior of the |
| * {@link ConfiguredTarget} implementation) |
| */ |
| public class ConfigurationMakeVariableContext implements MakeVariableExpander.Context { |
| private final Package pkg; |
| private final Map<String, String> toolchainEnv; |
| private final Map<String, String> commandLineEnv; |
| private final Map<String, String> globalEnv; |
| private final String platform; |
| |
| public ConfigurationMakeVariableContext(Package pkg, BuildConfiguration configuration) { |
| this(pkg, configuration, ImmutableMap.<String, String>of()); |
| } |
| |
| public ConfigurationMakeVariableContext(Package pkg, BuildConfiguration configuration, |
| ImmutableMap<String, String> toolchainEnv) { |
| this.pkg = pkg; |
| this.toolchainEnv = toolchainEnv; |
| commandLineEnv = configuration.getCommandLineBuildVariables(); |
| globalEnv = configuration.getGlobalMakeEnvironment(); |
| platform = configuration.getPlatformName(); |
| } |
| |
| @Override |
| public String lookupMakeVariable(String var) throws ExpansionException { |
| String value = toolchainEnv.get(var); |
| if (value == null) { |
| value = commandLineEnv.get(var); |
| } |
| if (value == null) { |
| value = pkg.lookupMakeVariable(var, platform); |
| } |
| if (value == null) { |
| value = globalEnv.get(var); |
| } |
| if (value == null) { |
| throw new MakeVariableExpander.ExpansionException("$(" + var + ") not defined"); |
| } |
| |
| return value; |
| } |
| |
| public SkylarkDict<String, String> collectMakeVariables() { |
| Map<String, String> map = new LinkedHashMap<>(); |
| // Collect variables in the reverse order as in lookupMakeVariable |
| // because each update is overwriting. |
| map.putAll(pkg.getAllMakeVariables(platform)); |
| map.putAll(globalEnv); |
| map.putAll(commandLineEnv); |
| return SkylarkDict.<String, String>copyOf(null, map); |
| } |
| } |