pre-commit hook for nodejs projects in Typescript and Javascript.

pre-commit

#!/bin/bash

export JSNAMES='\.(js|ts)$'
export JSNAMES=$(git diff --cached --name-only --diff-filter=ACM | grep -E $JSNAMES)
function exit_err() { echo "❌ 💔" ; exit 1; }

if [[ ! -z $JSNAMES ]]
then
    echo "Examining $JSNAMES"
    echo $JSNAMES | xargs npm run format || exit_err
    npm run lint || exit_err
    echo $JSNAMES | xargs git add
else
    echo "nothing to do 😑"
    exit 0
fi
echo "✅ 😇"