Brick + ghcid

[NikolaVeber]

Hi,

I am a Haskell beginner, trying to create my first interactive Haskell app with BRICK.
My idea is to try and use ghcid for instant recompile/reload. (Ideally, it would save the app state and restart with the same state).

Is there a "standard" way to do this?

I have tried wunning with:

ghcid "--command=cabal run" --test=:main --reload ./app/Main.hs
Getting an issue similar to #164 "getTerminalAttributes: illegal operation (Inappropriate ioctl for device)"

Any help would be appreciated!

[jtdaugherty]

Hi @NikolaVeber - if I recall, the purpose of ghcid is to rebuild your program continuously, not to run it. It appears that you're trying to have ghcid run the program with --command=.... Have you tried just ghcid in your project directory?

[NikolaVeber]

Hi @jtdaugherty ,

thanks for the quick reply, and sorry for getting back to it so late..
I guess you are correct - I came up with a simple hack, allowing for automatic recompile/restart once a program exits. It does most of what I wanted : some sort of quick reload:

#!/bin/bash

while true;
do
 if ! cabal run;
 then
    echo "failed" 
    inotifywait -r . --quiet 
 fi
 echo "cabal run... restarting..." >&2
 echo "Press Ctrl-C to quit." && sleep 1
done