Prevent commits on master branch (full relative path: .git/hooks/pre-commit)

pre-commit

#!/bin/bash

protected_branch='master'
current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

if [ $protected_branch = $current_branch ]
then
    echo 'No pushing to master'
    exit 1 # commit will not execute
else
    exit 0 # commit will execute
fi