com.google.gerrit.server.patch.DiffSummaryLoader Maven / Gradle / Ivy
// Copyright (C) 2016 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.patch;
import com.google.gerrit.entities.Patch;
import com.google.gerrit.entities.Project;
import com.google.gerrit.server.patch.filediff.FileDiffOutput;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import org.eclipse.jgit.lib.ObjectId;
public class DiffSummaryLoader implements Callable {
public interface Factory {
DiffSummaryLoader create(DiffSummaryKey key, Project.NameKey project);
}
private final DiffOperations diffOperations;
private final DiffSummaryKey key;
private final Project.NameKey project;
@Inject
DiffSummaryLoader(
DiffOperations diffOps, @Assisted DiffSummaryKey k, @Assisted Project.NameKey p) {
diffOperations = diffOps;
key = k;
project = p;
}
@Override
public DiffSummary call() throws Exception {
ObjectId oldId = key.toPatchListKey().getOldId();
ObjectId newId = key.toPatchListKey().getNewId();
Map diffList =
oldId == null
? diffOperations.listModifiedFilesAgainstParent(
project, newId, /* parentNum= */ 0, DiffOptions.DEFAULTS)
: diffOperations.listModifiedFiles(project, oldId, newId, DiffOptions.DEFAULTS);
return toDiffSummary(diffList);
}
private DiffSummary toDiffSummary(Map fileDiffs) {
List r = new ArrayList<>(fileDiffs.size());
int linesInserted = 0;
int linesDeleted = 0;
for (String path : fileDiffs.keySet()) {
if (Patch.isMagic(path)) {
continue;
}
FileDiffOutput fileDiff = fileDiffs.get(path);
linesInserted += fileDiff.insertions();
linesDeleted += fileDiff.deletions();
switch (fileDiff.changeType()) {
case ADDED:
case MODIFIED:
case DELETED:
case COPIED:
case REWRITE:
r.add(
FilePathAdapter.getNewPath(
fileDiff.oldPath(), fileDiff.newPath(), fileDiff.changeType()));
break;
case RENAMED:
r.add(FilePathAdapter.getOldPath(fileDiff.oldPath(), fileDiff.changeType()));
r.add(
FilePathAdapter.getNewPath(
fileDiff.oldPath(), fileDiff.newPath(), fileDiff.changeType()));
break;
}
}
return new DiffSummary(r.stream().sorted().toArray(String[]::new), linesInserted, linesDeleted);
}
}