Quiet/Silent option

[jgoux]

Hello,

would it be possible to add a --silent or --quiet option to spago build so we don't have these messages :

File changed, rebuilding: "/home/jgoux/Projects/eurofins/colisage/purescript/server/src/Main.purs"
Compiling Main
Build succeeded.
Success! Waiting for next file change.
Type help for available commands. Press enter to force a rebuild.

My use case is when using the --watch option, I'd like to see the app's output only when the project rebuilds.

[f-f]

Hi @jgoux!

I have some questions:

• What output would you like to keep here?
  • Only the purs output or just nothing?
  • Or should we just hide the "File changed" part?
• What do you mean by "the app's output"? If you're doing spago build then the app is not running, but you're compiling the project with purs

If we want to just hide the "File changed" then we could emit it only when --verbose is specified. If we want to hide more, then we could add levels to the --verbose flag (as proposed in https://github.com/spacchetti/spago/issues/154#issuecomment-474883921 - so that e.g. --verbose 0 would hide output) or just add the --silent

[jgoux]

Hello @f-f ,

I'd like to be able to hide all the lines I showed.

I'm using nodemon to reload my index.js file when I have a change inside output/**/*.js

So I'd like to see only the output of my app which is what is logged from the app itself :

In this example, I'd like to see only the lines with the emoji, which are logged from my app's code.

Here is my package.json scripts :

"scripts": {
    "dev": "run-p dev:*",
    "dev:purescript": "spago build --watch",
    "dev:js": "nodemon -q -w output -w index.js index.js",
    "build": "spago build && ncc build index.js"
  }

[f-f]

Thanks @jgoux, I see now! Some more queries:

• Would it work to do spago build --watch > /dev/null instead?
• Did you know about spago run --watch?

[jgoux]

I can live with spago build --watch > /dev/null as long as compile errors are logged to stderr so I can see them. 😄

I was aware of spago run --watch but in the context of wrapping a "purescript core" inside a javascript app, I think I prefer using nodemon so it can restart the app from the outside if that makes sense.

[f-f]

@jgoux yes, compiler warnings and errors are logged to stderr.

I think we'll eventually figure out reasons for implementing this, but if this covers your usecase I'll close this issue 🙂