Hakyll not available in recent stackage (14.*)

[vaclavsvejcar]

Hello,

I followed the installation tutorial and it fails because Hakyll seems not to be present in current version of stack (see the command line output bellow). Can I fix this some other way than to use old stackage snapshot? Do you plan to bring Hakyll back to stackage or is there something preventing it?

Thanks a lot in advance :)

$ hakyll-init test-blog
Creating test-blog/contact.markdown
Creating test-blog/index.html
Creating test-blog/posts/2015-11-28-carpe-diem.markdown
Creating test-blog/posts/2015-08-12-spqr.markdown
Creating test-blog/posts/2015-10-07-rosa-rosa-rosam.markdown
Creating test-blog/posts/2015-12-07-tu-quoque.markdown
Creating test-blog/site.hs
Creating test-blog/css/default.css
Creating test-blog/images/haskell-logo.png
Creating test-blog/templates/post.html
Creating test-blog/templates/default.html
Creating test-blog/templates/post-list.html
Creating test-blog/templates/archive.html
Creating test-blog/about.rst
Creating test-blog/test-blog.cabal

$ cd test-blog/

$ stack init
Looking for .cabal or package.yaml files to use to init the project.
Using cabal packages:
- ./

Selecting the best among 16 snapshots...

* Partially matches lts-14.5
    hakyll not found
        - test-blog requires ==4.13.*

* Partially matches nightly-2019-09-12
    hakyll not found
        - test-blog requires ==4.13.*

* Partially matches lts-13.30
    hakyll not found
        - test-blog requires ==4.13.*

* Partially matches lts-12.26
    hakyll version 4.12.4.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-11.22
    hakyll version 4.12.3.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-10.10
    hakyll version 4.10.0.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-9.21
    hakyll version 4.9.8.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-8.24
    hakyll version 4.9.7.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-7.24
    hakyll not found
        - test-blog requires ==4.13.*

* Partially matches lts-6.35
    hakyll version 4.8.3.2 found
        - test-blog requires ==4.13.*

* Partially matches lts-5.18
    hakyll version 4.7.5.2 found
        - test-blog requires ==4.13.*

* Partially matches lts-4.2
    hakyll version 4.7.5.1 found
        - test-blog requires ==4.13.*

* Partially matches lts-3.22
    hakyll version 4.7.5.1 found
        - test-blog requires ==4.13.*

* Partially matches lts-2.22
    hakyll version 4.6.9.0 found
        - test-blog requires ==4.13.*

* Partially matches lts-1.15
    hakyll not found
        - test-blog requires ==4.13.*

* Partially matches lts-0.7
    hakyll not found
        - test-blog requires ==4.13.*

Selected resolver: lts-14.5
Resolver 'lts-14.5' does not have all the packages to match your requirements.
    hakyll not found
        - test-blog requires ==4.13.*

This may be resolved by:
    - Using '--omit-packages' to exclude mismatching package(s).
    - Using '--resolver' to specify a matching snapshot/resolver

[essic]

Hello,

For now I changed to version 4.12 since 4.13 is not available on Stackage yet and I use resolver lts-12.26.
It works for now. I'll change things back later

[jaspervdj]

There's nothing preventing getting Hakyll into stack again but I would need someone to shepherd that since my plate is a little full these days. I'm happy to assist with anything on the Hakyll side (bumping versions, putting out new releases when needed...).

[hvr]

@jaspervdj

For installation from source (i.e. via Hackage), stack is recommended

Quite frankly I'd recommend to provide Cabal instructions as well; you make it sound like our own haskell.org maintained tooling (ghcup & cabal) cannot be recommended and we need to push users towards 3rd party tooling (which ironically ends up being a bad recommendation)... ;-)

[jaspervdj]

@hvr I've added Cabal instructions as well now.

[simonmichael]

hakyll is in stackage again as of nightly-2020-04-15.

[Minoru]

Since LTS 16.0 Hakyll is back on Stackage, so I'm closing this. Thanks to @simonmichael for doing the work!