| // Copyright (C) 2011 The Android Open Source Project |
| // |
| // 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.gerrit.server.git; |
| |
| import com.google.gerrit.server.git.TagSet.Tag; |
| import java.util.ArrayList; |
| import java.util.BitSet; |
| import java.util.Collection; |
| import java.util.List; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.lib.Repository; |
| |
| class TagMatcher { |
| final BitSet mask = new BitSet(); |
| final List<Ref> newRefs = new ArrayList<>(); |
| final List<LostRef> lostRefs = new ArrayList<>(); |
| final TagSetHolder holder; |
| final TagCache cache; |
| final Repository db; |
| final Collection<Ref> include; |
| TagSet tags; |
| final boolean updated; |
| private boolean rebuiltForNewTags; |
| |
| TagMatcher( |
| TagSetHolder holder, |
| TagCache cache, |
| Repository db, |
| Collection<Ref> include, |
| TagSet tags, |
| boolean updated) { |
| this.holder = holder; |
| this.cache = cache; |
| this.db = db; |
| this.include = include; |
| this.tags = tags; |
| this.updated = updated; |
| } |
| |
| boolean isReachable(Ref tagRef) { |
| tagRef = db.peel(tagRef); |
| |
| ObjectId tagObj = tagRef.getPeeledObjectId(); |
| if (tagObj == null) { |
| tagObj = tagRef.getObjectId(); |
| if (tagObj == null) { |
| return false; |
| } |
| } |
| |
| Tag tag = tags.lookupTag(tagObj); |
| if (tag == null) { |
| if (rebuiltForNewTags) { |
| return false; |
| } |
| |
| rebuiltForNewTags = true; |
| holder.rebuildForNewTags(cache, this); |
| return isReachable(tagRef); |
| } |
| |
| return tag.has(mask); |
| } |
| |
| static class LostRef { |
| final Tag tag; |
| final int flag; |
| |
| LostRef(Tag tag, int flag) { |
| this.tag = tag; |
| this.flag = flag; |
| } |
| } |
| } |