[Haskell-cafe] cradle: a simpler process library

Julian Arni jkarni at gmail.com
Wed May 15 13:07:04 UTC 2024

Yeah, maybe it would have been nicer to do it that way.

Re: shake's cmd. Yes, that's exactly the inspiration. We removed the
polymorphism and varags aspect of the *arguments* (but kept it for the
*outputs*) because it felt like it complicated signatures, type inference,
and documentation for no real gain. But at the start "cradle" was almost
just a pure separation of shake's cmd into a new package.

On Wed, May 15, 2024 at 5:29 AM Isaac Elliott <isaace71295 at gmail.com> wrote:

> Nice. I first saw this style of polymorphic command output in
> Shake.Command[1].
> I'm surprised that `cmd` doesn't take an argument list, given how common
> it is to pass command args. I think it should; I'm willing to type `cmd
> "ls" []` so that `cmd "ls" ["-l"]` is shorter.
> [1]:
> https://hackage.haskell.org/package/shake-0.19.8/docs/Development-Shake-Command.html
> On Wed, 15 May 2024, 07:54 Julian Arni, <jkarni at gmail.com> wrote:
>> Hi all,
>> We just released cradle, a library aimed at a being simpler and more
>> intuitive subprocess library. More details in:
>> - The announcement: https://garnix.io/blog/announcing-cradle
>> - The hackage page:
>> https://hackage.haskell.org/package/cradle-
>> Feedback welcome!
>> Cheers,
>>  Julian
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