Git commit hook to package assets using Jammit

pre-commit-jammit

#!/bin/bash

# to install, replace your .git/hooks/pre-commit with this file

if [ $staged_asset_count -gt 0 ]; then
  if [ $changed_asset_count -eq 0 ]; then
    echo "Packaging css/js assets with jammit..."
    jammit -f
    git add public/packaged    # you might need to change this based on the package_path you use in your assets.yml
  else
    echo "Error: Cannot package css/js assets with jammit."
    echo
    echo "Jammit will run against the current state of the filesystem."
    echo "Running Jammit now would create packaged assets that include unstaged changes."
    echo "Please stage/stash/revert javascript and css."
    exit 1 
  fi
fi

exit 0