i3-apps

#!/bin/sh
#
# A script to start|stop various programs.
#

verb=start
for argument in "${@}"
do
    case "${argument}" in
        (wrapper)
        i3-msg '[title="file watcher"] kill'
        sleep 0.1
        i3-msg '[title="focus watcher"] kill'
        sleep 0.1
        if [ "_${verb}" != "_stop" ]; then
            path=$(dirname "$0")
            (eval "${path}/i3-wrapper -g") &
            sleep 0.1
            (eval "${path}/i3-wrapper -f") &
        fi
        ;;

        # This listens for playlists sent from my phone in response to
        # voice requests, and plays them via my desktop speakers.
        (music)
        pkill -f "playlist.m3u" # KISS.
        if [ "_${verb}" != "_stop" ]; then
            playlist="/dev/shm/${USER}/inotify/music"  # The directory not the file.
            mkdir -p "${playlist}"
            playlist="${playlist}/playlist.m3u"
            if [ ! -e  "${playlist}" ]; then
                touch "${playlist}"  # The file must exist else the watcher terminates.
            fi
            playlist="--watch-files ${playlist} --on-modify-command  \"mpv ${playlist}\""
            (eval "inotify-hookable ${playlist}") &
        fi
        ;;

        # Dropbox needs to be launched with dbus.
        (dropbox)
        dropbox stop
        if [ "_${verb}" != "_stop" ]; then
            dbus-launch dropbox start -i
        fi
        ;;

        # SpiderOakONE.
        (spideroak)
        if [ "$(pgrep -c SpiderOakONE)" -ne 0 ]; then
            if  [ "_${verb}" != "_start" ]; then
                (SpiderOakONE --shutdown > /dev/null 2>&1) &
            fi
        fi
        if [ "$(pgrep -c SpiderOakONE)" -eq 0 ]; then
            if [ "_${verb}" != "_stop" ]; then
                (SpiderOakONE) &
            fi
        fi
        ;;

        # Synergy.
        (synergy)
        if [ "$(pgrep -c synergy)" -ne 0 ]; then
            if  [ "_${verb}" != "_start" ]; then
               pkill -f synergy
            fi
        fi
        if [ "$(pgrep -c synergy)" -eq 0 ]; then
            if [ "_${verb}" != "_stop" ]; then
                synergy &
            fi
        fi
        ;;

        # TV Headend behaves better without authentication.
        (tvheadend)
        if [ "$(pgrep -c tvheadend)" -ne 0 ]; then
            if  [ "_${verb}" != "_start" ]; then
                pkill tvheadend
            fi
        fi
        if [ "$(pgrep -c tvheadend)" -eq 0 ]; then
            if  [ "_${verb}" != "_stop" ]; then
                (xfce4-terminal -T 'tvheadend' -x tvheadend --noacl) &
            fi
        fi
        ;;

        # Start or Stop the "background" programs. Press OK to confirm.
        (bgapps)
        yad --title="${verb} bgapps" --timeout=300 --timeout-indicator=top
        if  [ "$?" -eq 0 ]; then
            eval "$0 ${verb} wrapper tvheadend synergy music dropbox spideroak"
        fi
        ;;

        # Stop the important "foreground" programs. Press OK to confirm.
        (fgapps)
        for app in emacs firefox chrome thunderbird virtualbox
        do
            if [ "$(pgrep -c -f ${app})" -ne 0 ]; then
                yad --title="stop ${app}" --timeout=300 --timeout-indicator=top
                if  [ "$?" -eq 0 ]; then
                    case "${app}" in
                        (firefox)
                        # Firefox treats 'kill'/'pkill' as a crash.
                        i3-msg '[class="Firefox"] kill'
                        ;;
                        (virtualbox)
                        # Running VMs must be shutdown manually.
                        if [ "$(VBoxManage list runningvms | wc -l)" -ne 0 ]; then
                            # Allow plenty of time for user intervention.
                            yad --title="halt ${app}" --timeout=7200
                            # Allow two minutes for shutdown to complete.
                            sleep 120s
                            # Abandon system shutdown if any VMs are still running.
                            if [ "$(VBoxManage list runningvms | wc -l)" -ne 0 ]; then
                                exit 0
                            fi
                        fi
                        ;;
                        (*)
                        pkill -f ${app}
                        ;;
                    esac
                fi
            fi
        done
        ;;

        # A verb argument affects all subsequent object arguments up
        # until either the next verb argument or end-of-list.  The
        # verb variable is initialised such that the first argument
        # can safely be an object.
        (start|stop)
        verb=${argument}
        ;;
    esac
done

#
# Done.
#