How to ignore chmod/permission of files and directory changes on git/bitbucket

if you want a git/bitbucket repository to ignore permission changes (chmod),
type the following command into the Terminal while inside the git/bitbucket repository:

git config core.filemode false

It is usually possible to do this for all git repositories at once, instead of going one-by-one.
This is done by using the following command inside the Terminal (no need to be inside a git repository for this command):

git config --global core.filemode false