Automatically add GrowlMail plugin compatibility to the latest Mail.app version

UpdateGrowlMail.sh

# Updates the Growl Mail plugin when unknown compatibility preemptive deactivation happens.
# This consists in finding the “compatibility UUID” for the new Mail version, and adding it to the supported UUIDs of GrowlMail.
#
# See http://langui.sh/2009/11/09/fixing-growlmail-letterbox-for-mail-4-2/ for more details on the procedure.
#
# Author: Matti Schneider <hi@mattischneider.fr>

# Either ~/Library or /Library depending on the type of install (local or global).
INSTALL_ROOT="/Users/`whoami`/Library/Mail/"	# the default is to assume a local install
BUNDLE_NAME="GrowlMail.mailbundle"
DEST_NAME="$INSTALL_ROOT/Bundles/$BUNDLE_NAME"


read -n 1 -p "The plugin update procedure will start by quitting Mail. Press enter when you're ready to have Mail killed."

killall Mail 2> /dev/null	# quit Mail.app

uuids=$(defaults read com.apple.mail MessageTracerInfo | grep UUID | cut -d '"' -f 2)	# here are the new UUIDs we need to add to the bundle's supported list

deactivatedBundlesFolder="$(ls -1 $INSTALL_ROOT | grep "Bundles (")"	# the deactivated folder name is localized, so we can only rely on its name having a parenthesis

if ! [[ -e "$INSTALL_ROOT/$deactivatedBundlesFolder/$BUNDLE_NAME" ]]
then
	echo "No deactivated GrowlMail bundle found. Aborting."
	exit 1
fi

mv "$INSTALL_ROOT/$deactivatedBundlesFolder/$BUNDLE_NAME" "$DEST_NAME"

defaults write "$DEST_NAME/Contents/Info" SupportedPluginCompatibilityUUIDs -array-add $uuids

echo "Done!  :)"

open -a Mail