| // Copyright (C) 2021 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.query.approval; |
| |
| import com.google.gerrit.entities.Patch.ChangeType; |
| import com.google.gerrit.entities.PatchSet; |
| import com.google.gerrit.exceptions.StorageException; |
| import com.google.gerrit.index.query.Predicate; |
| import com.google.gerrit.server.patch.DiffNotAvailableException; |
| import com.google.gerrit.server.patch.DiffOperations; |
| import com.google.gerrit.server.patch.filediff.FileDiffOutput; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** Predicate that matches when the new patch-set includes the same files as the old patch-set. */ |
| @Singleton |
| public class ListOfFilesUnchangedPredicate extends ApprovalPredicate { |
| private final DiffOperations diffOperations; |
| |
| @Inject |
| public ListOfFilesUnchangedPredicate(DiffOperations diffOperations) { |
| this.diffOperations = diffOperations; |
| } |
| |
| @Override |
| public boolean match(ApprovalContext ctx) { |
| PatchSet currentPatchset = ctx.changeNotes().getCurrentPatchSet(); |
| Map.Entry<PatchSet.Id, PatchSet> priorPatchSet = |
| ctx.changeNotes().getPatchSets().lowerEntry(currentPatchset.id()); |
| try { |
| return match( |
| diffOperations.listModifiedFiles( |
| ctx.changeNotes().getProjectName(), |
| priorPatchSet.getValue().commitId(), |
| currentPatchset.commitId())); |
| } catch (DiffNotAvailableException ex) { |
| throw new StorageException( |
| "failed to compute difference in files, so won't copy" |
| + " votes on labels even if list of files is the same and " |
| + "copyAllIfListOfFilesDidNotChange", |
| ex); |
| } |
| } |
| |
| public boolean match(Map<String, FileDiffOutput> modifiedFiles) { |
| return modifiedFiles.values().stream() |
| .noneMatch( |
| p -> |
| p.changeType() == ChangeType.ADDED |
| || p.changeType() == ChangeType.DELETED |
| || p.changeType() == ChangeType.RENAMED); |
| } |
| |
| @Override |
| public Predicate<ApprovalContext> copy( |
| Collection<? extends Predicate<ApprovalContext>> children) { |
| return new ListOfFilesUnchangedPredicate(diffOperations); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(diffOperations); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof ListOfFilesUnchangedPredicate)) { |
| return false; |
| } |
| ListOfFilesUnchangedPredicate o = (ListOfFilesUnchangedPredicate) other; |
| return Objects.equals(o.diffOperations, diffOperations); |
| } |
| } |