Mausberry Shutdown Script Doesn't Save Metadata

cyperghost

#!/bin/bash
emucall=$(sed -n 4p /dev/shm/runcommand.info)
emupid=${emucall#* }
pos=$(expr ${#emucall} - ${#emupid})
$emupid=$(pgrep -f -n ${emucall:0:$pos})
kill $emupid

The code sniplet above should still do the job as it was introduced for a few days and was titled "complex" - it isn't ;)
It's robust string operation and searches for first occurence for space and then kills the latest process :)
The using of this regex in that way isn't maintainable imho for someone who isn't deep in this thing :) That's really nerdy now.

But your outfindings are great but do this only for ScummVM? I think to introduce the -n switch in pkill command will do the job :) without playing around with RegEx.

cyperghost

@meleu

I've posted something above.
I'm happy with your outfindings but I would prefer two ways.

a version with the inotify and a version without :)

I will use your code sniplets also for my newest build (but I will no use a mausberry - the platine is much to big)
To introduce a new bash windows with selectable options... Is it forced to be in first instance. Mean I can see it as on overlay due an emualtor? Do you know?

hansolo77

Now testing v1.5b (with the loop fix):

Shutdown from ES normally (play game, return to ES, verify "Last Played" updated, then button)
PASS - Last Played saved prior to successful shutdown
Shutdown from ES during video screensaver (play game, return to ES, verify "Last Played" updated, wait for screensaver to start, then button)
PASS - Last Played saved prior to successful shutdown (although there was a delay after pushing the button before the video stopped...)
Shutdown system while playing a game (RetroArch) (play game, return to ES, verify "Last Played" updated, play a different game, then button while still in game)
PASS - Last Played saved prior to successful shutdown (the previous game as well as the one I was playing when I shut down both saved to the list. Sleep delay still needs tweaked, takes a long time to start shutting down ES after exiting a game)
Shutdown system while playing a game (non-RetroArch) (play game, return to ES, verify "Last Played" updated, play a different game, then button while still in game)
PASS - Last Played saved prior to successful shutdown (previous game and active game both saved metadata)

COMPLETE SUCCESS!

I'm very happy you guys! You came forth and solved my problem! I'm going to try tweaking the sleep command a little, but for the most part.. yay!! I don't have the ScummVM system installed on my Pi, so I can't test any further if you guys try to come up with a solution for that. Thank you so much!!! Should I mark as resolved or are you guys still going to try tackling this further?

lostless

@hansolo77 If its solved for you, then by all means. @meleu is just trying to make a script that is more efficient on the cpu

hansolo77

I think the delay I found with the video screensaver comes from it waiting to start shutting down until AFTER the current playing video finishes. I just went to shutdown the system to make a backup of the working SD card, and a new video had just started, so I watched and waited until the current video stopped, then it shut down. Not a big deal, just something I noticed.

meleu

@hansolo77 when you are on IRC and see me (meleu) there, feel free to contact me and we will make more tests to "fix" that infinite loop checking the button pressing every single second.

Feel free to mark it as solved if it works for you. I am (was?) just trying to find a strong solution, for every scenario.

hansolo77

By all means. If a prettier solution can be had, it's for the better of everybody. Maybe we can even send a message over to the folks at Mausberry: "Hey, you guys should update your 'setup' webpage to include a blurb about our new script working if your goal is to use the circuit in a RetroPie setup". Of course, you're not their yet if you still wanna tinker.

And yeah, so long as my seedbox is online, I'm always in that chat forum (along with a dozen or so others). I do a lot of idlerpg for some of my private torrent trackers, and like to keep chatrooms open that I go to for help. Most of the time it's @Rookervik chatting up in there, but every now and then I see names I recognize like @cyperghost , @herb_fargus , @lilbud :)

lilbud

@hansolo77 said in Mausberry Shutdown Script Doesn't Save Metadata:

Most of the time it's @Rookervik chatting up in there, but every now and then I see names I recognize like @cyperghost , @herb_fargus , @lilbud :)

It's only ever a few people chatting even though 70+ people could be in the room. It's usually quiet the rest of the time

cyperghost

@meleu said in Mausberry Shutdown Script Doesn't Save Metadata:

Feel free to mark it as solved if it works for you. I am (was?) just trying to find a strong solution, for every scenario.

I think so, but I'm pretty sure that your solution (ScummVM fix) is already in usage by @hansolo77 - I asked you (yesterday is wrong!) for a few hours of using the sniplet. I'm just reading that more and more people rip out parts of these scripts for different other usecases.

@meleu About giving the user the best experience: Add the latest version(s) posted in this topic to the "Usefull topic index". I think most (mausberry) people find it usefull. There are still other selling products (Powerblock PetRetBlock or some selfmade things). Maybe the Pi4 (maybe 2018 but rather 2019) will contain a power switch.

Out of this is code pieces I created a PID detector for ES and all emulators Garbage: PID Detector. It gives report of an running emulator and detects running ES and output both PID numbers. Out of this it is pretty easy to perform a simple escpae keypress just kill $espid. So we have full control over ES ... we can restart ES, quit ES, system reboot and system shutdown now :)

@hansolo77 might you recheck if your script contains this line? If yes then it's a working version equal to @meleus upcoming, without the optimzing in sleep timer.
emupid="$(sed -n 4p /dev/shm/runcommand.info | tr -d '\\"' | tr '^$[]*.()|+?{}' '.')"
Otherwise there might be issues with some emulators like ScummVM.

About the telling mausberry to optimzie their bash script. Well no.... RetroPie and ES is just a special usecase. The mausberry script is working 100% in all usecases without installing an extra tool. So to follow unix philosopie - keep it simple and working and one tool for one usecase.
As me and @meleu (afaik) do not even possess a mausberry switch it's a bit difficult to test such scripts. We could run them and give an echo 1 > /sys... but then we still do not have insights about user permission... and I think we are the latest man on earth who say. "Do what I say...", we just make suggestions.

At last I have to say thank you to meleu for his constant help in caveeats and making suggestions. This is really a nice guy.

Download of latest version 1.56 is here

hansolo77

@cyperghost - Yes I am using the version with that line:

emupid="$(sed -n 4p /dev/shm/runcommand.info | tr -d '\\"' | tr '^$[]*.()|+?{}' '.')"

cyperghost

@hansolo77 Yes - I made finally some cleanups to code you may look into v1.56 @meleu discovered there also a small pitfall and as I already made some changes I established a precheck if file exists (runcommand.info) to just trap errormessage while sed-command is reading the file :)
So it's better to recheck again - don't fear - the code is working.
I think it's also in the mind of @meleu and definatly my last work on this piece. I learned a lot from this. The error accourd as I used the PID detector and no emulator was started before. So sed-command gives out error ... This is just cosmetical but now it's perfect.

hansolo77

I see you added:

if [[ -e "/dev/shm/runcommand.info" ]]; then

I'm on my way out the door right now, but I will try to test this latest version tonight!

cyperghost

@hansolo77 Yes and a bit more but this has been impossible without the help from @meleu

if [[ -e "/dev/shm/runcommand.info" ]]; then
    emupid="$(sed -n 4p /dev/shm/runcommand.info | tr -d '\\"' | tr '^$[]*.()|+?{}' '.')"
    emupid="$(pgrep -f "$emupid")" 
fi

hansolo77

Results from testing 1.56 (with @meleu fix)

Shutdown from inside ES (normal)
PASS
Shutdown from inside ES (during screensaver)
PASS
Shutdown from inside a game (RetroArch)
PASS
Shutdown from inside a game (non-RetroArch (SuperMarioWar))
PASS (although I still think sleep is too long)

Cha-Ching! At least for me. I still don't have ScummVM installed to verify @meleu's fix, but at least I can confirm the additions don't break anything else. :)

EDIT
Did some further experimenting on my own.. Dropped sleep down to 7, then 5, then 4, then 3, then 2, then 1. All testing verified proper shutdown and metadata saving. Doesn't take NEAR as long to start shutting down after closing out of an emulator now! With 2 seconds, ES barely has enough time to load back up before shutdown. The video snap runs about 2-3 frames before the menu starts rendering, then the system powers off. With 1 second, all you get is a brief little glimpse of the menu starting to load then power off (before the video starts). I then tried to #comment out the entire && sleep 1 bit. The results are that I get the RunCommand screen and the word "Terminated" at the bottom. ES never loads back up at all, and the metadata does NOT save. So we definitely need that sleep 1 at least. I also tested with sleep .5 but that didn't work either, same results as being #commented out. So now I'm using this:

#!/bin/bash

#this is the GPIO pin connected to the lead on switch labeled OUT
GPIOpin1=23

#this is the GPIO pin connected to the lead on switch labeled IN
GPIOpin2=24

echo "$GPIOpin1" > /sys/class/gpio/export
echo "in" > /sys/class/gpio/gpio$GPIOpin1/direction
echo "$GPIOpin2" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio$GPIOpin2/direction
echo "1" > /sys/class/gpio/gpio$GPIOpin2/value
while [ 1 = 1 ]; do
power=$(cat /sys/class/gpio/gpio$GPIOpin1/value)
if [ $power = 0 ]; then
sleep 1
else

# End Emulationstation if condition of running binary is true (v1.56)
# v1.0 07/21/17 by cyperghost - Inital run 
# v1.1 07/22/17 - Added chown command to set right user permission for creating es-shutdown
# v1.2 07/23/17 - Some small improvments, easier to maintain, removed echo, removed else branch 
# v1.5 07/27/17 - Great step to exit ES even if emulators is running by runcommand.sh are started
# v1.55 07/29/17 - all kudos go to @meleu for his alltime genious RegEx hack!
# v1.56 07/30/17 - All emulators will be detected. This is a full functional code equal to developing v1.7
# v1.7 is in work flow - This will be cleaner and better coded and is better to maintain
# I just checked with SSH command - it saved my metadata! Maybe you need to extend sleeptimer!
# greetings @pjft for his famous favorits and @meleu for his RegEx sniplets and his constant help! 

espid="$(pgrep -f "/opt/retropie/supplementary/.*/emulationstation([^.]|$)")"
if [[ -e "/dev/shm/runcommand.info" ]]; then
    emupid="$(sed -n 4p /dev/shm/runcommand.info | tr -d '\\"' | tr '^$[]*.()|+?{}' '.')"
    emupid="$(pgrep -f "$emupid")" 
fi

if [ "$emupid" ]; then
    kill $emupid && sleep 1
fi    

if [ "$espid" ]; then
   touch /tmp/es-shutdown && chown pi:pi /tmp/es-shutdown
   kill $espid
   exit
fi
# End Emulationstation if condition of running binary is true (v1.56)

sudo poweroff
fi
done

I did, however, notice that if I press the power button while the game has a few moments to actually load up (like in the in-game demo, rather than opening credits) it didn't load ES on 1 second.. it just did the RunCommand with "Terminated". So maybe the 1 second only works "right away"? Then again.. I just tested again with the same game while waiting longer and it worked, then it worked again with a different game while waiting. So maybe that was just a onetime glitch. Still, 1 time is enough to lose all your metadata... Has this come up before? I can't imagine it having been, since this is the first exposure to this script. But does it sound like something that could happen.. pressing the button after a longer period has a different out come than pressing it right after starting a game? In any case, I just tested with a 3rd game, and this time a non-RetroArch one. It still works great at 1 second.

I dunno, you think I should just use 2 and play it safe?

meleu

@hansolo77 said in Mausberry Shutdown Script Doesn't Save Metadata:

I dunno, you think I should just use 2 and play it safe?

IMHO yes.

barrymossel

Really nice work guys. Will try later this as well!

Is v1.7 still under development? Willing to test of course!

lostless

@barrymossel I'm using 1.7 and it working fine.

meleu

@lostless said in Mausberry Shutdown Script Doesn't Save Metadata:

@barrymossel I'm using 1.7 and it working fine.

Can you post a link to the script you're naming as 1.7?

Or maybe paste it in ghostbin...

meleu

@barrymossel said in Mausberry Shutdown Script Doesn't Save Metadata:

Is v1.7 still under development?

This "development" is more about testing than writing code. I would love to have this device to make more tests. I tried some experimentations with @lostless via IRC but it was late night... If you find me at IRC some day feel free to contact me.

If I find some time I'll write what tests I would like to do...

lostless

@meleu I assumed i was using 1.7. It's what ever the last one @cyperghost posted.