gulp-jsvalidate with git hook

gulpfile.js

var gulp = require('gulp');
var jsValidate = require('gulp-jsvalidate');

gulp.task('default', function() {
  // check for js syntax errors
  return gulp.src('web/app/**/*.js')
        .pipe(jsValidate());
});

pre-commit

#!/bin/bash
set -e
function run_test {
  if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
      head="HEAD"
  else
      # First commit, use an empty tree
      head="4b825dc642cb6eb9a060e54bf8d69288fbee4904"
  fi

  gulp
  if [[ "$?" != "0" ]]; then
    echo "gulp exited with error, aborting commit."
    exit 1
  fi
}

case "${1}" in
    --about )
        echo "run gulpfile"
        ;;
    * )
        run_test
        ;;
esac