Ignore the files, remove the files from git, update git (for the removal).

1) Ignore the files

• Add or update the project .gitignore to ignore them – in many cases such as yours, the parent directory, e.g. log/ will be the regex to use.
• commit and push that .gitignore file change (not sure if push needed mind you, no harm if done).

2) Remove the files from git (only).

• Now remove the files from git (only) with git rm --cached some_dir/
• Check that they still remain locally (they should!).

3) Add and commit that change (essentially this is a change to “add” deleting stuff, despite the otherwise confusing “add” command!)

• git add .
• git commit -m"removal"