hadrian-util: An experiment in a more usable hadrian UX
alp at well-typed.com
Mon Jan 6 09:06:11 UTC 2020
For reference, hadrian-util lives at:
I quite like the idea of trying out improvements to the UX via an
external wrapper. For wider adoption, we'd have to distribute it in a
nicer way I suppose, but taking this one step at a time sounds good.
On 05/01/2020 19:30, Ben Gamari wrote:
> Hi everyone,
> For the past few months I have been using Hadrian for the majority of my
> GHC builds. In due course I have encountered a few papercuts:
> * hadrian/cabal.build.sh is quite wordy (#16250); moreover, you need to
> be in the source root to invoke it (#16667)
> * editing hadrian.settings is quite difficult due to the lack of
> availability of tab-completion in vim
> * maintaining multiple build roots is quite error-prone since you must
> remember which build flavour you used for each (#16481, #16638)
> * there is no equivalent to setting `stage=2` in `mk/build.mk` to make
> the stage-1-freeze persistent
> To address these I cobbled together a small wrapper, hadrian-util. I
> have this installed in my home-manager environment with a shell alias,
> `hu`, meaning that building GHC is as easy as typing `hu run` anywhere
> in the tree.
> As discussed in the README, `hadrian-util` supports multiple build
> roots, has a moderately convenient interface for manipulating
> hadrian.settings (with completion!) and has enough persistent state to
> eliminate most of the error-prone boilerplate from Hadrian invocations
> without being confusing.
> There is the question of what the long-term future of hadrian-util
> should be. Arguably it is merely a hack papering over some of the
> shortcomings of Hadrian's current UX; perhaps eventually these will be
> fixed. However, in the meantime, I've found that hadrian-util makes
> hadrian quite pleasant to use.
> I hope others also find this useful.
> - Ben
> ghc-devs mailing list
> ghc-devs at haskell.org
Alp Mestanogullari, Haskell Consultant
Well-Typed LLP, https://www.well-typed.com/
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