blob: 967b3c5c545335bb59d9c4b9baf85f70529a4aa8 [file] [log] [blame]
// 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.restapi.project;
import com.google.common.collect.Lists;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.extensions.api.projects.ReflogEntryInfo;
import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.server.CommonConverters;
import com.google.gerrit.server.args4j.InstantHandler;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.permissions.ProjectPermission;
import com.google.gerrit.server.project.BranchResource;
import com.google.inject.Inject;
import java.io.IOException;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.lib.ReflogReader;
import org.eclipse.jgit.lib.Repository;
import org.kohsuke.args4j.Option;
public class GetReflog implements RestReadView<BranchResource> {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private final GitRepositoryManager repoManager;
private final PermissionBackend permissionBackend;
@Option(
name = "--limit",
aliases = {"-n"},
metaVar = "CNT",
usage = "maximum number of reflog entries to list")
public GetReflog setLimit(int limit) {
this.limit = limit;
return this;
}
@Option(
name = "--from",
metaVar = "TIMESTAMP",
usage =
"timestamp from which the reflog entries should be listed (UTC, format: "
+ InstantHandler.TIMESTAMP_FORMAT
+ ")")
public GetReflog setFrom(Instant from) {
this.from = from;
return this;
}
@Option(
name = "--to",
metaVar = "TIMESTAMP",
usage =
"timestamp until which the reflog entries should be listed (UTC, format: "
+ InstantHandler.TIMESTAMP_FORMAT
+ ")")
public GetReflog setTo(Instant to) {
this.to = to;
return this;
}
private int limit;
private Instant from;
private Instant to;
@Inject
public GetReflog(GitRepositoryManager repoManager, PermissionBackend permissionBackend) {
this.repoManager = repoManager;
this.permissionBackend = permissionBackend;
}
@Override
public Response<List<ReflogEntryInfo>> apply(BranchResource rsrc)
throws RestApiException, IOException, PermissionBackendException {
permissionBackend
.user(rsrc.getUser())
.project(rsrc.getNameKey())
.check(ProjectPermission.READ_REFLOG);
try (Repository repo = repoManager.openRepository(rsrc.getNameKey())) {
ReflogReader r;
try {
r = repo.getReflogReader(rsrc.getRef());
} catch (UnsupportedOperationException e) {
String msg = "reflog not supported on repo " + rsrc.getNameKey().get();
logger.atSevere().log("%s", msg);
throw new MethodNotAllowedException(msg, e);
}
if (r == null) {
throw new ResourceNotFoundException(rsrc.getRef());
}
List<ReflogEntry> entries;
if (from == null && to == null) {
entries = limit > 0 ? r.getReverseEntries(limit) : r.getReverseEntries();
} else {
entries = limit > 0 ? new ArrayList<>(limit) : new ArrayList<>();
for (ReflogEntry e : r.getReverseEntries()) {
Instant timestamp = e.getWho().getWhenAsInstant();
if ((from == null || from.isBefore(timestamp)) && (to == null || to.isAfter(timestamp))) {
entries.add(e);
}
if (limit > 0 && entries.size() >= limit) {
break;
}
}
}
return Response.ok(Lists.transform(entries, this::newReflogEntryInfo));
}
}
private ReflogEntryInfo newReflogEntryInfo(ReflogEntry e) {
return new ReflogEntryInfo(
e.getOldId().getName(),
e.getNewId().getName(),
CommonConverters.toGitPerson(e.getWho()),
e.getComment());
}
}