com.google.gerrit.server.change.CherryPickCommit.java Source code

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Here is the source code for com.google.gerrit.server.change.CherryPickCommit.java

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// Copyright (C) 2017 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.change;

import com.google.common.base.Strings;
import com.google.gerrit.common.data.Capable;
import com.google.gerrit.extensions.api.changes.CherryPickInput;
import com.google.gerrit.extensions.common.ChangeInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RefNames;
import com.google.gerrit.server.git.IntegrationException;
import com.google.gerrit.server.project.CommitResource;
import com.google.gerrit.server.project.InvalidChangeOperationException;
import com.google.gerrit.server.project.ProjectControl;
import com.google.gerrit.server.project.RefControl;
import com.google.gerrit.server.update.UpdateException;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import org.eclipse.jgit.revwalk.RevCommit;

@Singleton
public class CherryPickCommit implements RestModifyView<CommitResource, CherryPickInput> {

    private final CherryPickChange cherryPickChange;
    private final ChangeJson.Factory json;

    @Inject
    CherryPickCommit(CherryPickChange cherryPickChange, ChangeJson.Factory json) {
        this.cherryPickChange = cherryPickChange;
        this.json = json;
    }

    @Override
    public ChangeInfo apply(CommitResource rsrc, CherryPickInput input)
            throws OrmException, IOException, UpdateException, RestApiException {
        String message = Strings.nullToEmpty(input.message).trim();
        String destination = Strings.nullToEmpty(input.destination).trim();
        int parent = input.parent == null ? 1 : input.parent;

        if (destination.isEmpty()) {
            throw new BadRequestException("destination must be non-empty");
        }

        ProjectControl projectControl = rsrc.getProject();
        Capable capable = projectControl.canPushToAtLeastOneRef();
        if (capable != Capable.OK) {
            throw new AuthException(capable.getMessage());
        }

        RevCommit commit = rsrc.getCommit();
        String refName = RefNames.fullName(destination);
        RefControl refControl = projectControl.controlForRef(refName);
        if (!refControl.canUpload()) {
            throw new AuthException("Not allowed to cherry pick " + commit + " to " + destination);
        }

        Project.NameKey project = projectControl.getProject().getNameKey();
        try {
            Change.Id cherryPickedChangeId = cherryPickChange.cherryPick(null, null, null, null, project, commit,
                    message.isEmpty() ? commit.getFullMessage() : message, refName, refControl, parent);
            return json.noOptions().format(project, cherryPickedChangeId);
        } catch (InvalidChangeOperationException e) {
            throw new BadRequestException(e.getMessage());
        } catch (IntegrationException e) {
            throw new ResourceConflictException(e.getMessage());
        }
    }
}