questions about runcommand.sh

[BuZz]

implemented in https://github.com/RetroPie/RetroPie-Setup/commit/0c39c7438b7986997313e74707e9873e820bbfa1

[meleu]

@BuZz Really cool man! Thanks!

[meleu]

Another runcommand question:

Why runcommand.log went to /dev/shm?

[BuZz]

ram based.

[meleu]

@BuZz
one more question...

Premise: thinking in RetroArch only.

I'm using runcommand-onstart.sh to change a system specific's retroarch.cfg before launching the game. Is the $system passed to runcommand-onstart.sh a valid configdir?

In other words, can I use /opt/retropie/configs/$system/retroarch.cfg?

I'm doing this way and it's working fine for the classic consoles (atari2600, nes, snes, megadrive, etc...). But I'm worried if this will work for any libretro emulator.

[BuZz]

@meleu yes.

https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/supplementary/runcommand/runcommand.sh#L119-L123

[meleu]

@BuZz
(* sigh * here I go bother you again...)

would you mind to export the log variable in runcommand.sh?

reason:
make it accessible in runcommand-on{start,end}.sh.

use case:
Since users can execute custom commands in runcommand-on{start,end}.sh some bugs can be inserted.
It would be a good practice for those who want to write something in these scripts, to log some info for bug tracking.
Another benefit: It helps us to help inexperienced users with problems because of third-party on{start,end} scripts.

[BuZz]

Just write your own log or use the same filename. Actually, I will redirect stderr to the log, so errors will get logged automatically.

[meleu]

@BuZz
Oh! You did it!
I'll redirect log messages to stderr. Thanks again!

[meleu]

@BuZz
Don't you think that would be useful to register the start/end of the runcommand-on{start,end}.sh?

The goal is to facilitate problem diagnosis in runcommand.log. Example: If some user has problems on launching a game because of a bad runcommand-onstart.sh and don't know it, he can paste his runcommand.log and this info would help the diagnose.

I was thinking in something like this:

# calls script with parameters system, emulator, rom, and commandline
function user_script() {
    local script="$configdir/all/$1"
    if [[ -f "$script" ]]; then
        echo "--- start of \"$script\" ---" >> "$log"
        bash "$script" "$system" "$emulator" "$rom" "$command" </dev/tty 2>>"$log"
        echo "--- end of \"$script\" ---" >> "$log"
    fi
}

[EDIT: I know we can register this info using the script itself, but not everyone follows this good practice.]

[BuZz]

@meleu I don't. Runcommand will continue even if there is an error. Please try to not constantly send me questions and requests.