Importing a Custom Function File

Questions and Answers
1

Hi all!

I've started to amass a bunch of custom functions and it's getting to be a chore to keep track of them. Is there a way to create a file that imports all my functions on tidal's startup to get around this?

2

You can add them all to your own custom BootTidal.hs file. They’ll load automatically every time you launch Tidal (via your text editor).

3

Oh cool! I'll give it a try. Thx!

4

Can't you also load your functions using :l yourFileWithTidalFunctions.hs in your Tidal file?
As far as I understand you can use the GHCi commands from within Tidal.

1 Like
5

I just tried this method:

:l ~/test.hs

where the contents of test.hs is just

testList :: Int -> String
testList n = unwords $ replicate n "bd"

and it works to import the function:

...
Ok, modules loaded: Main.

But it seems to mess up tidal (in Atom), because after that, trying to send

d1 $ s "bd cp"

generates the error

t>:51:1:
    Not in scope: ‘d1’
    Perhaps you meant ‘dt’ (imported from Sound.Tidal.Context)

(but it worked fine before)

6

I found I could add a function definition in BootTidal.hs file like this:

:{
let testList :: Int -> String
    testList n = unwords $ replicate n "bd"
:}
7

I see the same when I try this using nvim, so I might be probably wrong - and I am sorry for that.

I am thinking, what if you defined your own function modules? But once you have it, I don't know exactly where you should import it. @yaxu do you have any suggestion / good practice?

8

You can use :script instead. For multi-line blocks of code you have to wrap in :{ and :} though. Have a look at BootTidal.hs for examples, which is itself loaded using :script
I'm sure there's a way of loading modules without losing current state but am not sure of the best way to do this off the top of my head