Precommit hook for eslint and rubocop

pre-commit

#!/bin/sh

FILE_COUNT=$(git status | grep 'modified:' | wc -l)

if [ $FILE_COUNT -gt 100 ] ; then
  echo "File count is 100+, skipping pre-commit validation"
  exit 0
fi

# Check modified Javascript files with ESLint

FAILED=0

bundle exec rake lint
if [[ $? != 0 ]] ; then
  FAILED=1
fi

matches=$(git diff --cached | grep -E '\+.*?FIXME')

if [ "$matches" != "" ]
then
  echo "'FIXME' tag is detected."
  echo "Please fix it before committing."
  echo "  ${matches}"
  FAILED=1
fi

if [[ $FAILED != 0 ]] ; then
  echo "Pre-commit test failed, git commit denied!"
  exit 1
fi

exit 0