com.google.gerrit.server.change.FileInfoJsonImpl Maven / Gradle / Ivy
// 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.change;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.Change;
import com.google.gerrit.entities.Patch;
import com.google.gerrit.entities.PatchSet;
import com.google.gerrit.entities.Project;
import com.google.gerrit.extensions.common.FileInfo;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.server.patch.DiffNotAvailableException;
import com.google.gerrit.server.patch.DiffOperations;
import com.google.gerrit.server.patch.DiffOptions;
import com.google.gerrit.server.patch.FilePathAdapter;
import com.google.gerrit.server.patch.PatchListNotAvailableException;
import com.google.gerrit.server.patch.filediff.FileDiffOutput;
import com.google.inject.Inject;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jgit.errors.NoMergeBaseException;
import org.eclipse.jgit.lib.ObjectId;
/** Implementation of {@link FileInfoJson} using {@link DiffOperations}. */
public class FileInfoJsonImpl implements FileInfoJson {
private final DiffOperations diffs;
@Inject
FileInfoJsonImpl(DiffOperations diffOperations) {
this.diffs = diffOperations;
}
@Nullable
@Override
public Map getFileInfoMap(
Change change, ObjectId objectId, @Nullable PatchSet base)
throws ResourceConflictException, PatchListNotAvailableException {
try {
if (base == null) {
// Setting parentNum=0 requests the default parent, which is the only parent for
// single-parent commits, or the auto-merge otherwise
return asFileInfo(
diffs.listModifiedFilesAgainstParent(
change.getProject(), objectId, /* parentNum= */ 0, DiffOptions.DEFAULTS));
}
return asFileInfo(
diffs.listModifiedFiles(
change.getProject(), base.commitId(), objectId, DiffOptions.DEFAULTS));
} catch (DiffNotAvailableException e) {
convertException(e);
return null; // unreachable. handleAndThrow will throw an exception anyway
}
}
@Nullable
@Override
public Map getFileInfoMap(
Project.NameKey project, ObjectId objectId, int parent)
throws ResourceConflictException, PatchListNotAvailableException {
try {
Map modifiedFiles =
diffs.listModifiedFilesAgainstParent(project, objectId, parent, DiffOptions.DEFAULTS);
return asFileInfo(modifiedFiles);
} catch (DiffNotAvailableException e) {
convertException(e);
return null; // unreachable. handleAndThrow will throw an exception anyway
}
}
private void convertException(DiffNotAvailableException e)
throws ResourceConflictException, PatchListNotAvailableException {
Throwable cause = e.getCause();
if (cause != null && !(cause instanceof NoMergeBaseException)) {
cause = cause.getCause();
}
if (cause instanceof NoMergeBaseException) {
throw new ResourceConflictException(
String.format("Cannot create auto merge commit: %s", e.getMessage()), e);
}
throw new PatchListNotAvailableException(e);
}
private Map asFileInfo(Map fileDiffs) {
Map result = new HashMap<>();
for (String path : fileDiffs.keySet()) {
FileDiffOutput fileDiff = fileDiffs.get(path);
FileInfo fileInfo = new FileInfo();
fileInfo.status =
fileDiff.changeType() != Patch.ChangeType.MODIFIED
? fileDiff.changeType().getCode()
: null;
fileInfo.oldPath = FilePathAdapter.getOldPath(fileDiff.oldPath(), fileDiff.changeType());
fileInfo.sizeDelta = fileDiff.sizeDelta();
fileInfo.size = fileDiff.size();
fileInfo.oldMode =
fileDiff.oldMode().isPresent() && !fileDiff.oldMode().get().equals(Patch.FileMode.MISSING)
? fileDiff.oldMode().get().getMode()
: null;
fileInfo.newMode =
fileDiff.newMode().isPresent() && !fileDiff.newMode().get().equals(Patch.FileMode.MISSING)
? fileDiff.newMode().get().getMode()
: null;
if (fileDiff.patchType().get() == Patch.PatchType.BINARY) {
fileInfo.binary = true;
} else {
fileInfo.linesInserted = fileDiff.insertions() > 0 ? fileDiff.insertions() : null;
fileInfo.linesDeleted = fileDiff.deletions() > 0 ? fileDiff.deletions() : null;
}
result.put(path, fileInfo);
}
return result;
}
}