pre-commit jshint hook http://habrahabr.ru/post/189872/

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

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
        echo jshint $i
        jshint $i
        if [ $? -ne 0 ];
        then
            exit 1
        fi
    fi
done