How to detect commit --amend by pre-commit hook ?

Question

When I do commit --amend, it is unsafe commit if the commit already has been pushed to remote repository.

I want to detect unsafe commit --amend by pre-commit hook and a

Answer 1

Following @Roger Dueck's answer, ended up doing:

#./.git/hooks/prepare-commit-msg

IS_AMEND=$(ps -ocommand= -p $PPID | grep -e '--amend');

if [ -n "$IS_AMEND" ]; then
  return;
fi