Line data    Source code

       1             : // Copyright (C) 2012 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.restapi.change;
      16             : 
      17             : import static com.google.gerrit.extensions.conditions.BooleanCondition.and;
      18             : import static com.google.gerrit.server.project.ProjectCache.illegalState;
      19             : 
      20             : import com.google.gerrit.entities.BranchNameKey;
      21             : import com.google.gerrit.entities.RefNames;
      22             : import com.google.gerrit.extensions.api.changes.CherryPickInput;
      23             : import com.google.gerrit.extensions.common.ChangeInfo;
      24             : import com.google.gerrit.extensions.restapi.BadRequestException;
      25             : import com.google.gerrit.extensions.restapi.ResourceConflictException;
      26             : import com.google.gerrit.extensions.restapi.Response;
      27             : import com.google.gerrit.extensions.restapi.RestApiException;
      28             : import com.google.gerrit.extensions.restapi.RestModifyView;
      29             : import com.google.gerrit.extensions.webui.UiAction;
      30             : import com.google.gerrit.server.change.ChangeJson;
      31             : import com.google.gerrit.server.change.RevisionResource;
      32             : import com.google.gerrit.server.permissions.PermissionBackend;
      33             : import com.google.gerrit.server.permissions.PermissionBackendException;
      34             : import com.google.gerrit.server.permissions.ProjectPermission;
      35             : import com.google.gerrit.server.permissions.RefPermission;
      36             : import com.google.gerrit.server.project.ContributorAgreementsChecker;
      37             : import com.google.gerrit.server.project.InvalidChangeOperationException;
      38             : import com.google.gerrit.server.project.NoSuchChangeException;
      39             : import com.google.gerrit.server.project.NoSuchProjectException;
      40             : import com.google.gerrit.server.project.ProjectCache;
      41             : import com.google.gerrit.server.project.ProjectState;
      42             : import com.google.gerrit.server.update.UpdateException;
      43             : import com.google.inject.Inject;
      44             : import com.google.inject.Singleton;
      45             : import java.io.IOException;
      46             : import org.eclipse.jgit.errors.ConfigInvalidException;
      47             : 
      48             : @Singleton
      49             : public class CherryPick
      50             :     implements RestModifyView<RevisionResource, CherryPickInput>, UiAction<RevisionResource> {
      51             :   private final PermissionBackend permissionBackend;
      52             :   private final CherryPickChange cherryPickChange;
      53             :   private final ChangeJson.Factory json;
      54             :   private final ContributorAgreementsChecker contributorAgreements;
      55             :   private final ProjectCache projectCache;
      56             : 
      57             :   @Inject
      58             :   CherryPick(
      59             :       PermissionBackend permissionBackend,
      60             :       CherryPickChange cherryPickChange,
      61             :       ChangeJson.Factory json,
      62             :       ContributorAgreementsChecker contributorAgreements,
      63         145 :       ProjectCache projectCache) {
      64         145 :     this.permissionBackend = permissionBackend;
      65         145 :     this.cherryPickChange = cherryPickChange;
      66         145 :     this.json = json;
      67         145 :     this.contributorAgreements = contributorAgreements;
      68         145 :     this.projectCache = projectCache;
      69         145 :   }
      70             : 
      71             :   @Override
      72             :   public Response<ChangeInfo> apply(RevisionResource rsrc, CherryPickInput input)
      73             :       throws IOException, UpdateException, RestApiException, PermissionBackendException,
      74             :           ConfigInvalidException, NoSuchProjectException {
      75           8 :     input.parent = input.parent == null ? 1 : input.parent;
      76           8 :     if (input.destination == null || input.destination.trim().isEmpty()) {
      77           1 :       throw new BadRequestException("destination must be non-empty");
      78             :     }
      79             : 
      80           7 :     String refName = RefNames.fullName(input.destination);
      81           6 :     contributorAgreements.check(rsrc.getProject(), rsrc.getUser());
      82             : 
      83           6 :     permissionBackend
      84           6 :         .currentUser()
      85           6 :         .project(rsrc.getChange().getProject())
      86           6 :         .ref(refName)
      87           6 :         .check(RefPermission.CREATE_CHANGE);
      88           6 :     projectCache
      89           6 :         .get(rsrc.getProject())
      90           6 :         .orElseThrow(illegalState(rsrc.getProject()))
      91           6 :         .checkStatePermitsWrite();
      92             : 
      93             :     try {
      94           6 :       CherryPickChange.Result cherryPickResult =
      95           6 :           cherryPickChange.cherryPick(
      96           6 :               rsrc.getChange(),
      97           6 :               rsrc.getPatchSet(),
      98             :               input,
      99           6 :               BranchNameKey.create(rsrc.getProject(), refName));
     100           6 :       ChangeInfo changeInfo =
     101           6 :           json.noOptions().format(rsrc.getProject(), cherryPickResult.changeId());
     102           6 :       changeInfo.containsGitConflicts =
     103           6 :           !cherryPickResult.filesWithGitConflicts().isEmpty() ? true : null;
     104           6 :       return Response.ok(changeInfo);
     105           1 :     } catch (InvalidChangeOperationException e) {
     106           1 :       throw new BadRequestException(e.getMessage());
     107           0 :     } catch (NoSuchChangeException e) {
     108           0 :       throw new ResourceConflictException(e.getMessage());
     109             :     }
     110             :   }
     111             : 
     112             :   @Override
     113             :   public UiAction.Description getDescription(RevisionResource rsrc) {
     114          57 :     boolean projectStatePermitsWrite =
     115          57 :         projectCache.get(rsrc.getProject()).map(ProjectState::statePermitsWrite).orElse(false);
     116          57 :     return new UiAction.Description()
     117          57 :         .setLabel("Cherry Pick")
     118          57 :         .setTitle("Cherry pick change to a different branch")
     119          57 :         .setVisible(
     120          57 :             and(
     121          57 :                 rsrc.isCurrent() && projectStatePermitsWrite,
     122             :                 permissionBackend
     123          57 :                     .currentUser()
     124          57 :                     .project(rsrc.getProject())
     125          57 :                     .testCond(ProjectPermission.CREATE_CHANGE)));
     126             :   }
     127             : }