Pre-commit git hook to lint all python files

install-flake8-pre-commit-hook.sh

#!/bin/sh
# works as of flake8 3.2.1

echo -n "Enter the project directory and press [Enter]: "
read project

if [ ! -d $project ]; then
    echo "FAILURE: Could not find directory '$project'"
fi
    
cd $project

echo '* Installing flake8 git pre-commit hook\n'
flake8 --install-hook git 

echo "* configuring flake8 to forbid commits containing errors/warnings\n"
git config --bool flake8.strict true

echo "* setting some flake8 config options in your project's tox.ini"
cat << 'EOF' >> tox.ini
[flake8]
max-line-length = 120
ignore = F403
exclude = *migrations*,venv
EOF

tail -n 4 tox.ini

echo '\n* Done'