Add support for ghc 9.2.5

[polemius]

Resolve #87

• Increase the upper base bound to allow GHC 9.2.4
• Build on CI with 9.2.4 (but only GHC 9.2.4)
• Update the instructions
• Keep the old lower bound so people who forked the course earlier could still build it with GHC 8.10.7
• Test locally that it still builds with GHC 8.10.7 just in case

@chshersh could you please help me how I could keep the old lower bound for 8.10.7 because with this changes it works only with 9.2.4

[chshersh]

Looks nice 👍🏻

There's one more remaining change and I'd like to double check this as well but looks solid so far 👌🏻

[chshersh]

This should be a wider constraint to test with both GHC 8.10 and GHC 9.2 (and GHC 9.0 as a consequence)

Suggested change

	build-depends: base ^>= 4.16
	build-depends: base >= 4.14 && < 4.17

The ^>= 4.16 is syntax sugar for >= 4.16 && < 4.17

[polemius]

Thank you for the comment. I have update the versions and checked builds with both 8.10.7 and 9.2.4 versions.

[chshersh]

From the recent discussion on /r/haskell, it seems that GHC 9.2.4 doesn't really work on Apple Silicon chips with the latest macOS version. And instead, we should use GHC 9.2.5 instead.

I'm not sure if the Haskell GitHub Action automatically supports GHC 9.2.5 but we can try to update and see.

I wasn't aware that GHC 9.2.4 doesn't work everywhere 😞
So I'd prefer to have this course working for everyone to provide smooth experience 🙂

@polemius Would you like to update this PR to support GHC 9.2.5 instead or would you prefer to not invest more of your time into this (which would be totally understandable)?

[chshersh]

Hey @polemius 👋🏻

Looks GHC 9.2.5 is better supported on various systems and is now even supported by HLS so it should be safe to migrate to it instead.

Would you be still interested in updating this PR to update to GHC 9.2.5?

[polemius]

@chshersh Sorry it takes so long. I have updated my PR with 9.2.5 version instead of 9.2.4.

[chshersh]

Thanks for getting back to this and updating the PR! 🙏🏻

We also need to change stack.yaml here for an LTS that uses GHC 9.2.5. We can take lts-20.9 (and after that we'll also need to cleanup extra-deps in stack.yaml)

exercises/stack.yaml

Line 1 in 1f44e5f

resolver: lts-18.21

Otherwise, it's nice to see CI building with GHC 9.2.5 without any code changes 🚀
And don't worry about taking the time 👍🏻

[chshersh]

Let's keep this line with constraints. It disables some heavy dependencies and makes the course compilation much faster for the first time 🚀

[chshersh]

Let's use 2.9.3 here for stack

[polemius]

Updated

[chshersh]

Let's also update cabal to 3.8.1.0 everywhere

[polemius]

Updated

[chshersh]

Thanks for the work, @polemius!

I don't know why CI on Windows fails, probably an instance of the following recent incident:

• https://discourse.haskell.org/t/incident-github-actions-ci-failure-ghcup/5761

The CI on stack fails with the following error. Some dependencies need to be adjusted.

Error: [S-4804]
       Stack failed to construct a build plan.
       
       While constructing the build plan, Stack encountered the following errors:
       
       In the dependencies for hedgehog-classes-0.2.5.3(-aeson
       -comonad
       -primitive
       -semirings
       -vector):
           hedgehog-1.1.2 from Stack configuration does not match >=1 && <1.1 (latest matching
                          version is 1.0.5)
       needed due to exercises-0.0.0.0 -> hedgehog-classes-0.2.5.3
       
       Some different approaches to resolving this:
       
         * Set 'allow-newer: true'
           in /home/runner/.stack/config.yaml to ignore all version constraints and build anyway.
       
         * Recommended action: try adding the following to your extra-deps
           in /home/runner/work/exercises/exercises/stack.yaml:
       
       - hedgehog-1.0.5@sha256:a14356de69470b7e3966a65cd887c15b168d76ec7892c45cf0e23fea788fdbdc,4533

Also, GHC 9.2.6 was just released which caught me off-guard 😮

• https://discourse.haskell.org/t/ghc-9-2-6-is-now-available/5782/2

In any case, I'll merge this PR and probably move to GHC 9.2.6 later when HLS is available (and when the CI issue will be fixed).

Thanks a lot again! 👏🏻