How to move some files in Git history to LFS with a single command
I’m assuming you already know what Git LFS is and have it set up already.
Today I have updated GoogleCast SDK in my project to 4.7.0 beta which has support for Apple Silicon simulators. I created a pull request and noticed that there is some binary files of size almost 20MB. So I and the team think it’s a good idea to put it in Git LFS.
The problem is, that binary file is already tracked in git months ago. How can I update git’s reference to it throughout the history?
My first idea is I have to git lfs track to update .gitattribute for that file at the right commit, then manually re-add the commits in one big interactive rebase. That’s is… too much.
Fortunately, there is a quicker way using git lfs migrate import . The documentation is here.
Using `git lfs migrate`
Let’s say the file is at **/GoogleCast.framework/GoogleCast. The are 2 variants of it for different architectures.
- find the commit BEFORE you added the large file (e.g. 4c3488dafe)
- run this command
