Git pre-commit hook that detects if the developer forget to remove all the javascript console.log before commit.

gistfile1.sh

#!/bin/bash

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

consoleRegexp='^[^-].*.*console.log'
filenameRegexp='\(^[^-].*.*console.log(\|^+++\)'

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