package org.dstadler.jgit;
/*
Copyright 2013, 2014 Dominik Stadler
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.
*/
import java.io.File;
import java.io.IOException;
import org.dstadler.jgit.helper.CookbookHelper;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
/**
* Simple snippet which shows how to open an existing repository
*
* @author dominik.stadler at gmx.at
*/
public class OpenRepository {
public static void main(String[] args) throws IOException, GitAPIException {
// first create a test-repository, the return is including the .get directory here!
File repoDir = createSampleGitRepo();
// now open the resulting repository with a FileRepositoryBuilder
FileRepositoryBuilder builder = new FileRepositoryBuilder();
Repository repository = builder.setGitDir(repoDir)
.readEnvironment() // scan environment GIT_* variables
.findGitDir() // scan up the file system tree
.build();
System.out.println("Having repository: " + repository.getDirectory());
// the Ref holds an ObjectId for any type of object (tree, commit, blob, tree)
Ref head = repository.getRef("refs/heads/master");
System.out.println("Ref of refs/heads/master: " + head);
repository.close();
}
private static File createSampleGitRepo() throws IOException, GitAPIException {
Repository repository = CookbookHelper.createNewRepository();
System.out.println("Temporary repository at " + repository.getDirectory());
// create the file
File myfile = new File(repository.getDirectory().getParent(), "testfile");
myfile.createNewFile();
// run the add-call
new Git(repository).add()
.addFilepattern("testfile")
.call();
// and then commit the changes
new Git(repository).commit()
.setMessage("Added testfile")
.call();
System.out.println("Added file " + myfile + " to repository at " + repository.getDirectory());
File dir = repository.getDirectory();
repository.close();
return dir;
}
}