git pre-commit hooks for detecting 'console.log'

pre-commit.js

const shell = require('shelljs')

if (!shell.which('git')) {
  shell.echo('Sorry, this script requires git');
  shell.exit(1);
}

shell.exec('git diff --cached',{silent: true}, async (code, stdout, stderr) => {
  if (code !== 0) return
  if (!stdout.match(/console\.log/)) return
  console.log('There are some occurrences of console.log at your modification.\nYou can use git-cz --no-verify to commit')
  shell.exit(1)
})

pre-commit.sh

#!/bin/sh
# Redirect output to stderr.
exec 1>&2
# enable user input
exec < /dev/tty

consoleregexp='console.log'
# CHECK
if test $(git diff --cached | grep $consoleregexp | wc -l) != 0
then 
  exec git diff --cached | grep -ne $consoleregexp
  read -p "There are some occurrences of console.log at your modification. Are you sure want to continue? (y/n)" yn
  echo $yn | grep ^[Yy]$
  if [ $? -eq 0 ] 
  then
    exit 0; #THE USER WANTS TO CONTINUE
  else
    exit 1; # THE USER DONT WANT TO CONTINUE SO ROLLBACK
  fi
fi