JGit: Checkout a remote branch

Question

I\'m using JGit to checkout a remote tracking branch.

Git binrepository = cloneCmd.call()

CheckoutCommand checkoutC         


        

Answer 1

For whatever reason, the code that robinst posted did not work for me. In particular, the local branch that was created did not track the remote branch. This is what I used that worked for me (using jgit 2.0.0.201206130900-r):

git.pull().setCredentialsProvider(user).call();
git.branchCreate().setForce(true).setName(branch).setStartPoint("origin/" + branch).call();
git.checkout().setName(branch).call();

Answer 2

You have to use setCreateBranch to create a branch:

Ref ref = git.checkout().
        setCreateBranch(true).
        setName("branchName").
        setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK).
        setStartPoint("origin/" + branchName).
        call();

Your first command was the equivalent of git checkout origin/mybranch.

(Edit: I submitted a patch to JGit to improve the documentation of CheckoutCommand: https://git.eclipse.org/r/8259)

Answer 3

As shown in the code of CheckoutCommand, you need to set the boolean createBranch to true in order to create a local branch.

You can see an example in CheckoutCommandTest - testCreateBranchOnCheckout()

@Test
public void testCreateBranchOnCheckout() throws Exception {
  git.checkout().setCreateBranch(true).setName("test2").call();
  assertNotNull(db.getRef("test2"));
}

Answer 4

you also can just like this

git.checkout().setName(remoteBranch).setForce(true).call();
                logger.info("Checkout to remote branch:" + remoteBranch);
                git.branchCreate() 
                   .setName(branchName)
                   .setUpstreamMode(SetupUpstreamMode.SET_UPSTREAM)
                   .setStartPoint(remoteBranch)
                   .setForce(true)
                   .call(); 
                logger.info("create new locale branch:" + branchName + "set_upstream with:" + remoteBranch);
                git.checkout().setName(branchName).setForce(true).call();
                logger.info("Checkout to locale branch:" + branchName);