Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.google.gerrit.server.project.ListTags Maven / Gradle / Ivy
// Copyright (C) 2014 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.project;
import com.google.common.collect.ImmutableMap;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.extensions.api.projects.TagInfo;
import com.google.gerrit.extensions.common.WebLinkInfo;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.IdString;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.CommonConverters;
import com.google.gerrit.server.WebLinks;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.git.SearchingChangeCacheImpl;
import com.google.gerrit.server.git.TagCache;
import com.google.gerrit.server.git.VisibleRefFilter;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevWalk;
import org.kohsuke.args4j.Option;
public class ListTags implements RestReadView {
private final GitRepositoryManager repoManager;
private final Provider dbProvider;
private final TagCache tagCache;
private final ChangeNotes.Factory changeNotesFactory;
@Nullable private final SearchingChangeCacheImpl changeCache;
private final WebLinks links;
@Option(
name = "--limit",
aliases = {"-n"},
metaVar = "CNT",
usage = "maximum number of tags to list")
public void setLimit(int limit) {
this.limit = limit;
}
@Option(
name = "--start",
aliases = {"-S"},
metaVar = "CNT",
usage = "number of tags to skip")
public void setStart(int start) {
this.start = start;
}
@Option(
name = "--match",
aliases = {"-m"},
metaVar = "MATCH",
usage = "match tags substring")
public void setMatchSubstring(String matchSubstring) {
this.matchSubstring = matchSubstring;
}
@Option(
name = "--regex",
aliases = {"-r"},
metaVar = "REGEX",
usage = "match tags regex")
public void setMatchRegex(String matchRegex) {
this.matchRegex = matchRegex;
}
private int limit;
private int start;
private String matchSubstring;
private String matchRegex;
@Inject
public ListTags(
GitRepositoryManager repoManager,
Provider dbProvider,
TagCache tagCache,
ChangeNotes.Factory changeNotesFactory,
@Nullable SearchingChangeCacheImpl changeCache,
WebLinks webLinks) {
this.repoManager = repoManager;
this.dbProvider = dbProvider;
this.tagCache = tagCache;
this.changeNotesFactory = changeNotesFactory;
this.changeCache = changeCache;
this.links = webLinks;
}
@Override
public List apply(ProjectResource resource)
throws IOException, ResourceNotFoundException, BadRequestException {
List tags = new ArrayList<>();
try (Repository repo = getRepository(resource.getNameKey());
RevWalk rw = new RevWalk(repo)) {
ProjectControl pctl = resource.getControl();
Map all =
visibleTags(pctl, repo, repo.getRefDatabase().getRefs(Constants.R_TAGS));
for (Ref ref : all.values()) {
tags.add(createTagInfo(ref, rw, pctl.controlForRef(ref.getName()), pctl, links));
}
}
Collections.sort(
tags,
new Comparator() {
@Override
public int compare(TagInfo a, TagInfo b) {
return a.ref.compareTo(b.ref);
}
});
return new RefFilter(Constants.R_TAGS)
.start(start)
.limit(limit)
.subString(matchSubstring)
.regex(matchRegex)
.filter(tags);
}
public TagInfo get(ProjectResource resource, IdString id)
throws ResourceNotFoundException, IOException {
try (Repository repo = getRepository(resource.getNameKey());
RevWalk rw = new RevWalk(repo)) {
String tagName = id.get();
if (!tagName.startsWith(Constants.R_TAGS)) {
tagName = Constants.R_TAGS + tagName;
}
Ref ref = repo.getRefDatabase().exactRef(tagName);
ProjectControl pctl = resource.getControl();
if (ref != null && !visibleTags(pctl, repo, ImmutableMap.of(ref.getName(), ref)).isEmpty()) {
return createTagInfo(ref, rw, pctl.controlForRef(ref.getName()), pctl, links);
}
}
throw new ResourceNotFoundException(id);
}
public static TagInfo createTagInfo(
Ref ref, RevWalk rw, RefControl control, ProjectControl pctl, WebLinks links)
throws MissingObjectException, IOException {
RevObject object = rw.parseAny(ref.getObjectId());
List webLinks = links.getTagLinks(pctl.getProject().getName(), ref.getName());
if (object instanceof RevTag) {
// Annotated or signed tag
RevTag tag = (RevTag) object;
PersonIdent tagger = tag.getTaggerIdent();
return new TagInfo(
ref.getName(),
tag.getName(),
tag.getObject().getName(),
tag.getFullMessage().trim(),
tagger != null ? CommonConverters.toGitPerson(tag.getTaggerIdent()) : null,
control.canDelete(),
webLinks.isEmpty() ? null : webLinks);
}
// Lightweight tag
return new TagInfo(
ref.getName(),
ref.getObjectId().getName(),
control.canDelete(),
webLinks.isEmpty() ? null : webLinks);
}
private Repository getRepository(Project.NameKey project)
throws ResourceNotFoundException, IOException {
try {
return repoManager.openRepository(project);
} catch (RepositoryNotFoundException noGitRepository) {
throw new ResourceNotFoundException();
}
}
private Map visibleTags(
ProjectControl pctl, Repository repo, Map tags) {
return new VisibleRefFilter(
tagCache, changeNotesFactory, changeCache, repo, pctl, dbProvider.get(), false)
.filter(tags, true);
}
}
