Check out specific revision from Git repository with JGit

Question

I am trying to use jGit to clone a repository and checkout a particular commit.

Assuming the commit hash is: 1e9ae842ca94f326215358917c620ac407323c81.

My fir

Answer 1

You will have to clone the repository first, thus your first step was right:

Git.cloneRepository().setURI(remotePath).setDirectory(localPath).call();

To just checkout a commit by its id you can call checkout like this:

git.checkout().setName("<id-to-commit>").call();

But note that this will result in a detached HEAD. To avoid this, you can tell checkout to create a new branch first that points to the commit and then checkout this branch.

git.checkout().setCreateBranch(true).setName("new-branch").setStartPoint("<id-to-commit>").call();

The API isn't very intuitive, but it does what it should.