[Haskell-cafe] cabal v2 global install status

[Ivan Perez]

Hi,

I'd love to know more about that script capability, if you can spare the
time to explain a bit.

It can be a separate thread or via private email if that may be noise in
the conversation.

All the best,

Ivan

On Thu, 5 May 2022 at 15:11, Brandon Allbery <allbery.b at gmail.com> wrote:

> Cabal has a script capability, although it's poorly documented.
>
> For one-liners, there is `cabal repl --build-depends='...'. Not ideal,
> perhaps, but works well enough for me.
>
> On Thu, May 5, 2022 at 3:06 PM amindfv--- via Haskell-Cafe
> <haskell-cafe at haskell.org> wrote:
> >
> > On Thu, May 05, 2022 at 05:50:01AM -0400, Ivan Perez wrote:
> > > This workflow (installing packages in
> > > a store in the project directory) should be not just supported, but
> > > *encouraged*. Keeping all changes local *should be the default*.
> Experts,
> > > and those who want to optimize installation times, avoid
> re-compilation,
> > > those who know how to navigate $HOME/.cabal if need be, etc., can then
> > > choose to share that installation directory across projects and use
> > > $HOME/.cabal instead (or whatever else they want). But that's a
> conscious
> > > choice made by an expert who understands the choice.
> >
> > I'm actually coming from a bit of the opposite perspective. :)
> >
> > I'm pretty happy, overall, with `cabal new-repl`, `cabal new-build`,
> etc. What I miss is the ability to have global installs. More specifically,
> I want to *pay all my costs at install time*. I'm okay with futzing with
> package dependencies, etc. (e.g. resolving conflicts in transitive
> dependencies) when installing a new package, but once I've paid that cost I
> want to be able to simply run `ghci` and have my curated set of packages
> available to me. I don't want to have to `mkdir foo ; cd foo ; cabal init ;
> $EDITOR cabal.project ; cabal new-repl` just to run a simple one-liner in
> ghci. I also like being able to write quick scripts and run them with
> `runghc` without creating an entire project for each and every one.
> >
> > Cheers,
> > Tom
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>
>
>
> --
> brandon s allbery kf8nh
> allbery.b at gmail.com
>
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