// 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;
package com.google.gerrit.server.git;
import com.google.gerrit.server.git.TagSet.Tag;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Collection;
import java.util.List;
class TagMatcher {
final BitSet mask = new BitSet();
final List<Ref> newRefs = new ArrayList<Ref>();
final List<LostRef> lostRefs = new ArrayList<LostRef>();
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;
}
}
}