Is it possible to obtain GIT branch name at Bamboo Spec run time?

Question

I already tried by using jgit:

import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.Ref;

import java.io.File;
import java.io.IOException;

Repository repository = FileRepositoryBuilder.create(new File("../.git"));
currentBranch = repository.getBranch();
System.out.println("Current branch: " + currentBranch);

This unfortunately throws an access denied error.

[ERROR] Failed to execute goal com.atlassian.bamboo:bamboo-specs-runner:6.9.2:run (default-cli) on project bamboo-specs-generator: Execution default-cli of goal com.atlassian.bamboo:bamboo-specs-runner:6.9.2:run failed: access denied ("java.lang.RuntimePermission" "getenv.GIT_OBJECT_DIRECTORY") -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.atlassian.bamboo:bamboo-specs-runner:6.9.2:run (default-cli) on project bamboo-specs-generator: Execution default-cli of goal com.atlassian.bamboo:bamboo-specs-runner:6.9.2:run failed: access denied ("java.lang.RuntimePermission" "getenv.GIT_OBJECT_DIRECTORY")

Or maybe someone who knows how to solve the access denied exception?

james_mckean · Answer

That was a good hint.  I have it sorta working.  It cleanly identifies if I am in develop branch, but I am stumbling on the master branch.  Its probably in my setup of my test environment, but for anyone else looking at this, this looks very promising.

Peter Broere_4ozy2b · Answer

In the path where the bamboo specs is executed contains the path name (a bit encoded, e.g. / is encoded as _2F).

So an ugly solution would be to use the path to obtain the branch name (note: no decoding done in this example). Also note that this can break at any bamboo release, since it is not something that is specified.

public static final String REPOSITORY_PATH_PREFIX = "repository-";

public static String GetBranch()
{
  String path = Paths.get(".").toAbsolutePath().normalize().toString();
  for (String element : path.split("/"))
  {
    if (element.startsWith(REPOSITORY_PATH_PREFIX))
    {
      return element.split("-", 3)[2].trim();
    }
  }

return "unknown";
}

james_mckean · Answer

Did you figure this out?  We are running into a similar problem reading environment variables in Java Specs file.