For a Bamboo plugin I'm developing, I need to get the first commit for a GIT repository (BitBucket-Git or local Git).
The method com.atlassian.bamboo.plugins.git.v2.GitBranchDetector.getFirstCommitApproximation(VcsRepositoryData) sounded really promising. But it doesn't return the first commit. In fact it returns the last commit. When I look at the source code, it confirms that it never attempts to find the first commit, but instead returns the last commit (as far as I understand the code). Note: I'm looking at Bamboo 6.2.0
That is a bug I think, but I can't create a new issue in Bamboo's JIRA system, so I'm doing the next best thing: mentioning it here.
Short of fixing this bug, what else can I do to get the first commit from a Git repository?