| // 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.pkgcache; |
| |
| import com.google.devtools.build.lib.cmdline.ResolvedTargets; |
| import com.google.devtools.build.lib.cmdline.TargetParsingException; |
| import com.google.devtools.build.lib.events.ExtendedEventHandler; |
| import com.google.devtools.build.lib.packages.Target; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.util.List; |
| |
| /** |
| * A parser for target patterns. Target patterns are a generalisation of |
| * labels to include wildcards for finding all packages recursively |
| * beneath some root, and for finding all targets within a package. |
| * |
| * <p>A list of target patterns implies a union of all the labels of each |
| * pattern. Each item in a list of target patterns may include a prefix |
| * negation operator, indicating that the sets of targets for this pattern |
| * should be subtracted from the set of targets for the preceding patterns (note |
| * this means that order matters). Thus, the following list of target patterns: |
| * <pre>foo/... -foo/bar:all</pre> |
| * means "all targets beneath <tt>foo</tt> except for those targets in |
| * package <tt>foo/bar</tt>. |
| */ |
| // TODO(ulfjack): Delete this interface - it's only used in tests. |
| public interface TargetPatternEvaluator { |
| static FilteringPolicy DEFAULT_FILTERING_POLICY = FilteringPolicies.NO_FILTER; |
| |
| /** |
| * Attempts to parse an ordered list of target patterns, computing the union of the set of targets |
| * represented by each pattern, unless it is preceded by "-", in which case the set difference is |
| * computed. Implements the specification described in the class-level comment. |
| */ |
| ResolvedTargets<Target> parseTargetPatternList( |
| PathFragment relativeWorkingDirectory, |
| ExtendedEventHandler eventHandler, |
| List<String> targetPatterns, |
| FilteringPolicy policy, |
| boolean keepGoing) |
| throws TargetParsingException, InterruptedException; |
| } |