Using custom script that is not runcommand.sh does not work

[Folly]

@RetroFloppy08

You need somehow to add an other system that will load the .chd file and redirects it to your bash script which will detect the extension and then uses the correct runcommand.

[RetroFloppy08]

@Folly That's what I've done. I made a seperate system reserved for loading games from the disc. It also uses the custom script.

[Folly]

@RetroFloppy08

So what is your custom system name then ?
And how did you configure it ?

[RetroFloppy08]

@Folly If you look at the initial post, you can see the system entry.

[Folly]

@RetroFloppy08

Is that all you added ?
You will need to add much more to get it working.

So you have 2 choices.
Make a module-script like the example I gave you earlier , or do all the setting manually.
You can have a look here on how to do it manually :
https://retropie.org.uk/forum/topic/28462/tutorial-handheld-and-plug-play-systems-with-mame

And replace mame or emulator with your script and no need to use some retroarch.cfg.

[RetroFloppy08]

@Folly Hmm. Seems like I've got a lot of work to do. I'll let you know how it goes.

[Folly]

@RetroFloppy08

Can you filter all the nonsense and pick the correct things for yourself ?

[RetroFloppy08]

@Folly I can certainly try. I'm seeing some key things already, for example lines at the end that use the %ROM% argument to load a file from EmulationStation.

[Folly]

@RetroFloppy08

Ok, good luck.

Try this first, otherwise I recommend you to make a module-script.
Once you know how, then it's the easiest way.

[RetroFloppy08]

@Folly These are the lines I have narrowed down. I have a feeling they're wrong, so if they are, please tell me.

[sleve_mcdichael]

@RetroFloppy08 said in Using custom script that is not runcommand.sh does not work:

@sleve_mcdichael What argument am I supposed to attach to the command to load the filename?

%ROM% in the <command> string is used by EmulationStation and is replaced by the actual rom file you've selected. So for example if your <commamd> is bash /test/script.sh %ROM% and you select the game "Foorio in Foo Land" for the "Foo Bar Entertainment System" then ES is going to run:

bash /test/script.sh "/home/pi/RetroPie/roms/fbes/Foorio in Foo Land (USA, Zanzibar) (Rev B).foo"

Your script will then need to parse this as $1 or, "first argument."

I wonder if the spaces are maybe tripping it up. Try wrapping $1 in quotes, like "$1":

[[ "$1" == *.chd ]] && /opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ psx "$1"

...or try "$*" ("all arguments") instead of "$1" (first argument) (still in quotes).

[Folly]

@RetroFloppy08 said in Using custom script that is not runcommand.sh does not work:

@Folly These are the lines I have narrowed down. I have a feeling they're wrong, so if they are, please tell me.

Not sure what you are doing with this.
My script works, but not for your purpose.
The module-script is just an example, if you want to use it you to completely rewrite it for your needs.

My advise was to make a custom system manually first.
If that doesn't work we can talk about making a module-script.

[RetroFloppy08]

@Folly I've actually gotten the script to work. I reworked how the if statement is processed, and it works like a charm. Instead of isolating the extension (as initially suggested by @sleve_mcdichael) I instead told the program to read the last 4 characters of the filename. It works now, all I need to do is make more discs with different files, and add some else if statements. I'll post the script once it's finished.

[Folly]

@RetroFloppy08

Good work !
Curious what you made ;-)

[RetroFloppy08]

@Folly @sleve_mcdichael Alright, it's done. I present to you the script to load games based off of their filenames. This is the version I have, and it works very well. The selection is limited, but the good news is you can select for yourself what file types are supported. Have fun!

#!/bin/bash
 
rom="$1"
 
if [ "${1: -4}" == ".chd" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ psx "$1"
elif [ "${1: -4}" == ".bin" ] || [ "${1: -3}" == ".md" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ megadrive "$1"
elif [ "${1: -4}" == ".nes" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ nes "$1"
elif [ "${1: -4}" == ".smc" ] || [ "${1: -4}" == ".sfc" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ snes "$1"
elif [ "${1: -4}" == ".z64" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ n64 "$1"
elif [ "${1: -4}" == ".gba" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ gba "$1"
elif [ "${1: -4}" == ".zip" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ mame-libretro "$1"
elif [ "${1: -3}" == ".gb" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ gb "$1"
elif [ "${1: -4}" == ".gbc" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ gbc "$1"
elif [ "${1: -4}" == ".fds" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ fds "$1"
elif [ "${1: -4}" == ".nds" ]
then
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ nds "$1"
fi