pre-commit

#!/bin/bash
# Pre-commit Git hook to run JSHint on JavaScript files.
#
# If you absolutely must commit without testing,
# use: git commit --no-verify

passed=1
filenames=($(git diff --cached --name-only HEAD))

which jshint &> /dev/null
if [ $? -ne 0 ];
then
  echo "error: jshint not found"
  echo "install with: sudo npm install -g jshint"
  exit 1
fi

for i in "${filenames[@]}"
do
  if [[ $i =~ \.js$ ]];
  then
    jshint $i
    if [ $? -ne 0 ];
    then
      passed=0
    fi
  fi
done

if [[ passed -eq 0 ]];
then
  exit 1
fi