| /* |
| * Copyright 2014-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.rules.macros; |
| |
| import com.facebook.buck.io.ProjectFilesystem; |
| import com.facebook.buck.parser.BuildTargetParser; |
| import com.facebook.buck.rules.BinaryBuildRule; |
| import com.facebook.buck.rules.BuildRule; |
| import com.facebook.buck.util.Escaper; |
| import com.google.common.base.Joiner; |
| import com.google.common.collect.Iterables; |
| |
| /** |
| * Resolves to the executable command for a build target referencing a {@link BinaryBuildRule}. |
| */ |
| public class ExecutableMacroExpander extends BuildTargetMacroExpander { |
| |
| public ExecutableMacroExpander(BuildTargetParser parser) { |
| super(parser); |
| } |
| |
| @Override |
| public String expand(ProjectFilesystem filesystem, BuildRule rule) throws MacroException { |
| if (!(rule instanceof BinaryBuildRule)) { |
| throw new MacroException( |
| String.format( |
| "%s used in executable macro does not correspond to a binary rule", |
| rule.getBuildTarget())); |
| } |
| BinaryBuildRule binary = (BinaryBuildRule) rule; |
| return Joiner.on(' ').join( |
| Iterables.transform( |
| binary.getExecutableCommand(filesystem), |
| Escaper.BASH_ESCAPER)); |
| } |
| |
| } |