Git pre-commit hook to check alowance of making commit acording to autors/contributors file in repository.

pre-commit

#!/bin/sh

REPO_ROOT=`git rev-parse --show-toplevel`
AUTHORS_FILE="AUTHORS.txt"

if grep -xq "${GIT_AUTHOR_NAME} <${GIT_AUTHOR_EMAIL}>" "${REPO_ROOT}/${AUTHORS_FILE}"
then
	exit 0;
else
	echo "********************************************************************************"
	echo "* ERROR 100500: You are not allowed to commit into this repository.            *"
	echo "********************************************************************************"
	echo ""
	echo "  Reason: Your git author name and email are not found in ${AUTHORS_FILE}."
	echo "  Provided author name: ${GIT_AUTHOR_NAME}"
	echo "                 email: ${GIT_AUTHOR_EMAIL}"
	echo ""
	echo "  You have to run:"
	echo "  \tgit config user.name \"YOUR NAME\""
        echo "  \tgit config user.email \"YOUR EMAIL\""
	echo "  or, add yourself into ${REPO_ROOT}/${AUTHORS_FILE}."
    	exit 1
fi

yourself

Passes the test from 2 meters