close-app-before-update.sh

#!/bin/bash
#
# Script: Safely Close Application
#
# Description:
#   Safely closes and application after alerting user and prompting to save
#   any unsaved documents (if applicable).
#
# Parameters:
#   - app_name: Name of the application
#   - app_process: Process name if different than app name
#   - app_icon: Path to icns of application icon
#
# Author:
#   Matthew Warren <[email protected]>
#
# Created: 2016-01-23
# Modified: 2017-02-08
####################

# Read parameters
app_name=${4:-"Application"}
app_process=$5
app_icon=$6

# Location of CocoaDialog binary
ccd="/path/to/cocoaDialog.app/Contents/MacOS/cocoaDialog"

# Make sure CocoaDialog is installed; if not, attempt to fix it via policy
if [[ ! -a "${ccd}" ]]; then
    echo "Attempting to install CocoaDialog via policy"
    /usr/local/jamf/bin/jamf policy -forceNoRecon -event InstallCocoaDialog
    if [[ -z "${ccd}" ]]; then
        echo "Unable to install CocoaDialog, so we need to quit"
        exit 1
    else
        echo "CocoaDialog is now installed"
    fi
fi

# Check if the application is running and store its process id
if [[ ! -z $app_process ]]; then
    app_pid=$(pgrep "${app_process}")
else
    app_pid=$(pgrep "${app_name}")
fi


# If application is running alert user it must close
if [[ $app_pid ]]; then
    echo "${app_name} is running; alerting user it must close"

    # Look for the app's icon
    if [[ -z $app_icon ]]; then
        icon_candidate_1="/Applications/${app_name}.app/Contents/Resources/AppIcon.icns"
        icon_candidate_2="/Applications/${app_name}.app/Contents/Resources/${app_name}.icns"
        if [[ -f "${icon_candidate_1}" ]]; then
            app_icon_path=$icon_candidate_1
        elif [[ -f "${icon_candidate_2}" ]]; then
            app_icon_path=$icon_candidate_2
        else
            app_icon_path="/Applications/Self Service.app/Contents/Resources/Self Service.icns"
        fi
    else
        app_icon_path=$app_icon
    fi

    # Alert user
    "${ccd}" msgbox --title "${app_name} Update" --text "${app_name} needs to be closed." --informative-text "To safely install updates, ${app_name} must be closed. You will be prompted to save any unsaved documents before the application shuts down." --button1 "Close ${app_name} and Update" --no-cancel --icon-file "${app_icon_path}" --icon-size 64
    # Close app gracefully with AppleScript
    osascript -e "tell application \"${app_name}\" to activate" -e"tell application \"${app_name}\" to quit"
    echo "Closed ${app_name}"
fi

exit 0