Line data    Source code

       1             : // Copyright (C) 2011 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.submit;
      16             : 
      17             : import com.google.common.collect.ImmutableList;
      18             : import com.google.common.collect.ImmutableSet;
      19             : import com.google.gerrit.entities.BranchNameKey;
      20             : import com.google.gerrit.entities.Project;
      21             : import com.google.gerrit.exceptions.StorageException;
      22             : import com.google.gerrit.extensions.restapi.RestApiException;
      23             : import com.google.gerrit.server.git.CodeReviewCommit;
      24             : import com.google.gerrit.server.project.NoSuchProjectException;
      25             : import com.google.gerrit.server.submit.MergeOpRepoManager.OpenRepo;
      26             : import com.google.gerrit.server.update.BatchUpdate;
      27             : import com.google.gerrit.server.update.UpdateException;
      28             : import com.google.inject.Inject;
      29             : import com.google.inject.Singleton;
      30             : import java.io.IOException;
      31             : import java.util.LinkedHashSet;
      32             : import java.util.Map;
      33             : import org.eclipse.jgit.transport.ReceiveCommand;
      34             : 
      35             : public class SubmoduleOp {
      36             : 
      37             :   @Singleton
      38             :   public static class Factory {
      39             :     private final SubscriptionGraph.Factory subscriptionGraphFactory;
      40             :     private final SubmoduleCommits.Factory submoduleCommitsFactory;
      41             : 
      42             :     @Inject
      43             :     Factory(
      44             :         SubscriptionGraph.Factory subscriptionGraphFactory,
      45         142 :         SubmoduleCommits.Factory submoduleCommitsFactory) {
      46         142 :       this.subscriptionGraphFactory = subscriptionGraphFactory;
      47         142 :       this.submoduleCommitsFactory = submoduleCommitsFactory;
      48         142 :     }
      49             : 
      50             :     public SubmoduleOp create(
      51             :         Map<BranchNameKey, ReceiveCommand> updatedBranches, MergeOpRepoManager orm)
      52             :         throws SubmoduleConflictException {
      53          68 :       return new SubmoduleOp(
      54             :           updatedBranches,
      55             :           orm,
      56          68 :           subscriptionGraphFactory.compute(updatedBranches.keySet(), orm),
      57          68 :           submoduleCommitsFactory.create(orm));
      58             :     }
      59             :   }
      60             : 
      61             :   private final Map<BranchNameKey, ReceiveCommand> updatedBranches;
      62             :   private final MergeOpRepoManager orm;
      63             :   private final SubscriptionGraph subscriptionGraph;
      64             :   private final SubmoduleCommits submoduleCommits;
      65             :   private final UpdateOrderCalculator updateOrderCalculator;
      66             : 
      67             :   private SubmoduleOp(
      68             :       Map<BranchNameKey, ReceiveCommand> updatedBranches,
      69             :       MergeOpRepoManager orm,
      70             :       SubscriptionGraph subscriptionGraph,
      71          68 :       SubmoduleCommits submoduleCommits) {
      72          68 :     this.updatedBranches = updatedBranches;
      73          68 :     this.orm = orm;
      74          68 :     this.subscriptionGraph = subscriptionGraph;
      75          68 :     this.submoduleCommits = submoduleCommits;
      76          68 :     this.updateOrderCalculator = new UpdateOrderCalculator(subscriptionGraph);
      77          68 :   }
      78             : 
      79             :   public void updateSuperProjects(boolean dryrun) throws RestApiException {
      80          68 :     ImmutableSet<Project.NameKey> projects = updateOrderCalculator.getProjectsInOrder();
      81          68 :     if (projects == null) {
      82           0 :       return;
      83             :     }
      84             : 
      85          68 :     if (dryrun) {
      86             :       // On dryrun, the refs hasn't been updated.
      87             :       // force the new tips on submoduleCommits
      88           0 :       forceRefTips(updatedBranches, submoduleCommits);
      89             :     }
      90             : 
      91          68 :     LinkedHashSet<Project.NameKey> superProjects = new LinkedHashSet<>();
      92             :     try {
      93          68 :       GitlinkOp.Factory gitlinkOpFactory =
      94             :           new GitlinkOp.Factory(submoduleCommits, subscriptionGraph);
      95          68 :       for (Project.NameKey project : projects) {
      96             :         // only need superprojects
      97          68 :         if (subscriptionGraph.isAffectedSuperProject(project)) {
      98           2 :           superProjects.add(project);
      99             :           // get a new BatchUpdate for the super project
     100           2 :           OpenRepo or = orm.getRepo(project);
     101           2 :           for (BranchNameKey branch : subscriptionGraph.getAffectedSuperBranches(project)) {
     102           2 :             or.getUpdate().addRepoOnlyOp(gitlinkOpFactory.create(branch));
     103           2 :           }
     104             :         }
     105          68 :       }
     106          68 :       BatchUpdate.execute(
     107          68 :           orm.batchUpdates(superProjects, /* refLogMessage= */ "merged"),
     108          68 :           ImmutableList.of(),
     109             :           dryrun);
     110           0 :     } catch (UpdateException | IOException | NoSuchProjectException e) {
     111           0 :       throw new StorageException("Cannot update gitlinks", e);
     112          68 :     }
     113          68 :   }
     114             : 
     115             :   private void forceRefTips(
     116             :       Map<BranchNameKey, ReceiveCommand> updatedBranches, SubmoduleCommits submoduleCommits) {
     117             :     // This is dryrun, all commands succeeded (no need to filter success).
     118           0 :     for (Map.Entry<BranchNameKey, ReceiveCommand> updateBranch : updatedBranches.entrySet()) {
     119             :       try {
     120           0 :         ReceiveCommand command = updateBranch.getValue();
     121           0 :         if (command.getType() == ReceiveCommand.Type.DELETE) {
     122           0 :           continue;
     123             :         }
     124             : 
     125           0 :         BranchNameKey branchNameKey = updateBranch.getKey();
     126           0 :         OpenRepo openRepo = orm.getRepo(branchNameKey.project());
     127           0 :         CodeReviewCommit fakeTip = openRepo.rw.parseCommit(command.getNewId());
     128           0 :         submoduleCommits.addBranchTip(branchNameKey, fakeTip);
     129           0 :       } catch (NoSuchProjectException | IOException e) {
     130           0 :         throw new StorageException("Cannot find branch tip target in dryrun", e);
     131           0 :       }
     132           0 :     }
     133           0 :   }
     134             : }