How to find out what shared branch my feature branch was branched from

Question

It is very common on our project to end up with these somewhat old branches that we want to resurrect but we're not sure what shared branch they were branched from.

So to try and put the question in as concrete terms as possible:

1. I can identify a small set of "shared branches"
2. I have a specific feature branch F

Is there a nice tool (preferably a GUI) that easily allows me to identify what shared branch F was branched from?

Answer 1

git log --graph --oneline <branchname> should show you the history of <branchname> and its branch-point.