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// Copyright (C) 2012 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.change;
import static com.google.gerrit.extensions.conditions.BooleanCondition.and;
import static com.google.gerrit.server.project.ProjectCache.illegalState;
import com.google.gerrit.entities.BranchNameKey;
import com.google.gerrit.entities.RefNames;
import com.google.gerrit.extensions.api.changes.CherryPickInput;
import com.google.gerrit.extensions.common.ChangeInfo;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.extensions.webui.UiAction;
import com.google.gerrit.server.change.ChangeJson;
import com.google.gerrit.server.change.RevisionResource;
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.permissions.RefPermission;
import com.google.gerrit.server.project.ContributorAgreementsChecker;
import com.google.gerrit.server.project.InvalidChangeOperationException;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gerrit.server.project.NoSuchProjectException;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectState;
import com.google.gerrit.server.update.UpdateException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class CherryPick
implements RestModifyView<RevisionResource, CherryPickInput>, UiAction<RevisionResource> {
private final PermissionBackend permissionBackend;
private final CherryPickChange cherryPickChange;
private final ChangeJson.Factory json;
private final ContributorAgreementsChecker contributorAgreements;
private final ProjectCache projectCache;
@Inject
CherryPick(
PermissionBackend permissionBackend,
CherryPickChange cherryPickChange,
ChangeJson.Factory json,
ContributorAgreementsChecker contributorAgreements,
ProjectCache projectCache) {
this.permissionBackend = permissionBackend;
this.cherryPickChange = cherryPickChange;
this.json = json;
this.contributorAgreements = contributorAgreements;
this.projectCache = projectCache;
}
@Override
public Response<ChangeInfo> apply(RevisionResource rsrc, CherryPickInput input)
throws IOException, UpdateException, RestApiException, PermissionBackendException,
ConfigInvalidException, NoSuchProjectException {
input.parent = input.parent == null ? 1 : input.parent;
if (input.destination == null || input.destination.trim().isEmpty()) {
throw new BadRequestException("destination must be non-empty");
}
String refName = RefNames.fullName(input.destination);
contributorAgreements.check(rsrc.getProject(), rsrc.getUser());
permissionBackend
.currentUser()
.project(rsrc.getChange().getProject())
.ref(refName)
.check(RefPermission.CREATE_CHANGE);
projectCache
.get(rsrc.getProject())
.orElseThrow(illegalState(rsrc.getProject()))
.checkStatePermitsWrite();
try {
CherryPickChange.Result cherryPickResult =
cherryPickChange.cherryPick(
rsrc.getChange(),
rsrc.getPatchSet(),
input,
BranchNameKey.create(rsrc.getProject(), refName));
ChangeInfo changeInfo =
json.noOptions().format(rsrc.getProject(), cherryPickResult.changeId());
changeInfo.containsGitConflicts =
!cherryPickResult.filesWithGitConflicts().isEmpty() ? true : null;
return Response.ok(changeInfo);
} catch (InvalidChangeOperationException e) {
throw new BadRequestException(e.getMessage());
} catch (NoSuchChangeException e) {
throw new ResourceConflictException(e.getMessage());
}
}
@Override
public UiAction.Description getDescription(RevisionResource rsrc) {
boolean projectStatePermitsWrite =
projectCache.get(rsrc.getProject()).map(ProjectState::statePermitsWrite).orElse(false);
return new UiAction.Description()
.setLabel("Cherry Pick")
.setTitle("Cherry pick change to a different branch")
.setVisible(
and(
rsrc.isCurrent() && projectStatePermitsWrite,
permissionBackend
.currentUser()
.project(rsrc.getProject())
.testCond(ProjectPermission.CREATE_CHANGE)));
}
}