bash pre-commit script to run pyflakes and pep8 checks

pre-commit.sh

#!/bin/bash

ERROR_LIST=$(find . -name \*.py -not -path \*migrations/\* -not -path \*settings/\* -not -path \*vendor/\* -not -path \*node_modules/\* | xargs pyflakes)
RETVAL=$?
if [[ $RETVAL -ne 0 ]]; then
    echo "Encountered errors during pyflakes check, cowardly refusing to commit."
    echo "$ERROR_LIST"
    exit $RETVAL
fi

ERROR_LIST="$(pep8 -r --show-source --ignore=W391 --exclude=migrations/,vendor/,node_modules/ .)"
RETVAL=$?
if [[ $RETVAL -ne 0 ]]; then
    echo "Encountered errors during PEP8 style check, cowardly refusing to commit."
    echo "$ERROR_LIST"
    exit 1
fi

exit 0