I'd like to get the paths of the files changed (added, modified, or deleted) between two commits.
From the command line, I'd simply write
git diff --name-only abc123..def456
What is the equivalent way to do this with JGit?
You can use the DiffFormatter
to get a list of DiffEntry
s. Each entry has a changeType that specifies whether a file was added, removed or changed. An Entry
s' getOldPath()
and getNewPath()
methods return the path name. The JavaDoc lists what each method retuns for a given change type.
ObjectReader reader = git.getRepository().newObjectReader();
CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
ObjectId oldTree = git.getRepository().resolve( "HEAD~1^{tree}" );
oldTreeIter.reset( reader, oldTree );
CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
ObjectId newTree = git.getRepository().resolve( "HEAD^{tree}" );
newTreeIter.reset( reader, newTree );
DiffFormatter diffFormatter = new DiffFormatter( DisabledOutputStream.INSTANCE );
diffFormatter.setRepository( git.getRepository() );
List<DiffEntry> entries = diffFormatter.scan( oldTreeIter, newTreeIter );
for( DiffEntry entry : entries ) {
System.out.println( entry.getChangeType() );
}
The above example lists the changed files between HEAD
and its predecessor, but can be changed to compare arbitrary commits like abc^{tree}
.