git question: About gitignore

Question

I have a question about git:

I forgot to add .gitignore before committing, and committed some binary files in the format of .db or .pyc. And to make matters worse, I committed several versions without paying attention. Now how do I commit it? Are these binaries being removed in batches from all versions and will they be stopped from being tracked in the future? Thank you!

Answer 1

To rewrite past commits, you can use git filter-branch or this

Answer 2

Use git rm file to delete the tracking of the file, and it will be deleted locally.
Use git rm file --cached file to delete the tracking of the file, but it will be retained locally.

Remember to add modification .gitignore and then push it

Answer 3

Please ensure safety before starting the command:

git rm --cached [文件名]