JSHint pre-commit hook. To use, place into .git/hooks/ and make executable with chmod. Modified from this SO answer: http://stackoverflow.com/questions/15703065/github-setup-pre-commit-hook-jshint

pre-commit

#!/bin/sh

files=$(git diff --cached --name-only --diff-filter=ACM | grep ".js$")
if [ "$files" = "" ]; then 
    exit 0 
fi

pass=true

for file in ${files}; do
    result=$(jshint ${file})
    if [ $? == 0 ]; then
        echo "\033[32mJSHint Passed: ${file}\033[0m"
    else
        echo "\033[31mJSHint Failed: ${file}\033[0m"
        echo "\033[31m$(jshint ${file} | sed '$d' | sed '$d')\033[0m\n"
        pass=false
    fi
done

if ! $pass; then
    echo "\033[41mCOMMIT FAILED:\033[0m Please fix the JSHint errors and try again.\n"
    exit 1
fi