Feature request: "cabal repl" with file target

[hellwolf]

I like to use "single cabal script" a lot for small examples, e.g.:

$ cat ~/Templates/cabalscript.hs:

#!/usr/bin/env cabal
{- cabal:
build-depends: base
-}

main = do
  putStrLn "Hello World!"
  _ <- readLn :: IO String
  return ()

If one could test this by typing "C-c C-l" that'd grand, since cabal pull in all the dependencies encoded in the special comments area. I suspect we need a new type for haskell-process-type?

Also any pointer to where to look at for start hacking on it?

Edit: I have found a workaround of using the filename itself as the cabal-repl target.

[hellwolf]

I found a workaround nonetheless:

#!/usr/bin/env cabal
{- cabal:
build-depends: base
default-language: GHC2021
-}

main = do
  putStrLn "Hello World!"
  _ <- readLn :: IO String
  return ()

{-
Local Variables:
fill-column: 120
;; This will allow you to set the cabal-repl target to be this file directly.
haskell-process-type: cabal-repl
haskell-process-load-or-reload-prompt: t
End:
-}

With this, I would only need to do a couple of initial setup for the initial C-c C-l, and set the cabal repl target to the file name itself.