| // 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.patch; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import java.io.IOException; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.FileMode; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.Repository; |
| |
| /** Resolver of the source content of a specific file */ |
| public class SrcContentResolver { |
| |
| private SrcContentResolver() {} |
| |
| /** |
| * Return the source content of a specific file. |
| * |
| * @param repo Git repository. |
| * @param id Git Object ID of the file blob. |
| * @param fileMode File mode of the underlying file as recognized by Git. |
| * @return byte[] source content of the underlying file if the {@code id} is of type blob, or a |
| * textual representation of the file if it is a git submodule. |
| * @throws IOException the object ID does not exist in the repository or cannot be accessed. |
| */ |
| public static byte[] getSourceContent(Repository repo, ObjectId id, FileMode fileMode) |
| throws IOException { |
| if (fileMode.getObjectType() == Constants.OBJ_BLOB) { |
| return Text.asByteArray(repo.open(id, Constants.OBJ_BLOB)); |
| } |
| if (fileMode.getObjectType() == Constants.OBJ_COMMIT) { |
| String strContent = "Subproject commit " + ObjectId.toString(id); |
| return strContent.getBytes(UTF_8); |
| } |
| return Text.NO_BYTES; |
| } |
| } |