pre-commit-lint.sh

#!/bin/bash
files=$(git diff --diff-filter=M --cached --name-only | grep '\.jsx\?$')

# Prevent ESLint help message if no files matched
if [[ $files = "" ]] ; then
  exit 0
fi

failed=0
for file in ${files}; do
  git show :$file | eslint --stdin --stdin-filename "$file"
  if [[ $? != 0 ]] ; then
    failed=1
  fi
done;

if [[ $failed != 0 ]] ; then
  echo "ESLint failed, git commit denied!"
  exit $failed
fi