Extended Dependency Generation Proposal
dxld at darkboxed.org
Tue Jul 30 18:22:42 UTC 2019
from the proposal it sounds like you are planning to only extend the
single-shot mode with the new options, is that right?
I think `ghc --make` could also benefit from being able to communicate
non-module graph dependencies such as `addDependentFile` and CPP
#include to build-tools, no?
I've always been annoyed by the fact that if such dependencies change
cabal will not consider rebuilding.
On Tue, Jul 30, 2019 at 06:58:29PM +0100, David Eichmann wrote:
> Hello GHC Developers,
> I've recently been working on a proposal (found here
> <https://github.com/ghc-proposals/ghc-proposals/pull/245>) for "Extended
> Dependency Generation". This new feature takes the form of a new build
> option/mode that outputs comprehensive build dependencies for building
> Haskell modules. This allows external build tools, such as cabal-install, to
> implement correct incremental builds with recompilation avoidance using
> GHC's one shot mode to compile individual modules.
> All input is appreciated. It would be particularly helpful to hear from the
> Cabal, Stack, and Shake communities.
> Looking forward to hearing your comments,
> David Eichmann
>  https://github.com/ghc-proposals/ghc-proposals/pull/245
> David Eichmann, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com
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