Gate frivolous commits to master and staging.

pre-commit

#!/bin/bash

exec < /dev/tty

current_branch() {
  git rev-parse --abbrev-ref HEAD
}

if current_branch | grep -E "^(staging|master)$" > /dev/null
then
  read -p "Are you sure you want to commit changes to $(current_branch)? [yn] " -n 1 -r
  if [[ ! $REPLY =~ ^[Yy]$ ]]
  then
    exit 1
  fi
fi