Get modified files from locally cloned Git repository using Java

Question

In a cloned git repository, I want to pick only the files that are modified (i.e, files that are ready to commit or which are shown as 'modified' if I run the command 'git status'). I do not want to do it on date change comparison as files could have been modified on any day over a period of time.

I need the collection of file names with their absolute file paths.

Is there any such git utility in Java available? Or what will be the better approach?

By pick you mean? If you want to apply particular commit to your local repo then it can be done. — Zain Ul Abideen, Apr 10 '19 at 04:58
@ZainUlAbideen I don't want to commit. The idea is to get the modified file names only. Preferably using Java I/O. — JavaYouth, Apr 10 '19 at 05:21
You can try something like [JGit](https://www.eclipse.org/jgit/) to operate git related stuff. For example, do `git status` and show the modified files. — Jack, Apr 10 '19 at 05:33
@jackz314 Thanks. Something similar I was looking for. I will explore this library to see if it can help me. — JavaYouth, Apr 10 '19 at 05:41
@jackz314 JGit library was helpful in getting what I was looking for. Thank you! — JavaYouth, Apr 12 '19 at 04:57

score 1 · Accepted Answer · answered Apr 10 '19 at 06:13

import java.io.File;
import java.util.Set;

import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.Status;
import org.eclipse.jgit.api.errors.GitAPIException;

public class GitModifiedFileExtractor {

    public static void main(String[] args) throws IllegalStateException, GitAPIException {
        Git myGitRepo = Git.init().setDirectory(new File("C:\\myClonedGitRepo")).call();
        Status status = myGitRepo.status().call();
        Set<String> modifiedFiles = status.getModified();
        for (String modifiedFile : modifiedFiles) {
            System.out.println("Modified File - " + modifiedFile);
        }
    }
    // Similarly we can get files - added, missing, removed, untracked, etc., 
    // from status object.
}

Get modified files from locally cloned Git repository using Java

1 Answers1