/*
* The MIT License
*
* Copyright (c) 2011, Nigel Magnay / NiRiMa
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.nirima.jenkins;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.IndexDiff;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.storage.file.FileRepository;
import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class GitStatus {
public static class Status {
IndexDiff index;
ObjectId sha1;
FileRepository repository;
public Status(ObjectId id, FileRepository repository) throws IOException {
sha1 = id;
this.repository = repository;
FileTreeIterator workingTreeIt = new FileTreeIterator(repository);
index = new IndexDiff(repository, Constants.HEAD, workingTreeIt);
index.diff();
}
public boolean isDirty(File directory) {
return (match(directory, index.getAdded()) ||
match(directory, index.getChanged()) ||
match(directory, index.getMissing()) ||
match(directory, index.getModified()) ||
match(directory, index.getRemoved()));
}
private boolean match(File directory, Set<String> items) {
File workTree = repository.getWorkTree();
String substring = directory.getPath().substring( workTree.getPath().length());
if( substring.length() > 0)
substring = substring.substring(1);
for(String item : items)
{
if( item.startsWith(substring) )
return true;
}
return false;
}
}
private Map<ObjectId, Status> fetched = new HashMap<ObjectId, Status>();
public Status getStatus(File sourceDirectory) throws IOException {
final FileRepository repository = new FileRepositoryBuilder()
.readEnvironment()
.findGitDir(sourceDirectory)
.build();
ObjectId head = repository.resolve("HEAD");
if (fetched.containsKey(head))
return fetched.get(head);
Status status = new Status(head, repository);
fetched.put(head, status);
return status;
}
}