Re: Packaging elm-compiler 0.19.1

[Matthew Kraai]

Hi John,

On 12/31/20 10:51 AM, John Soo wrote:
> I’m not 100% sure how guix handles the ghc “boot” libraries but I 
> think time is installed alongside ghc. Doing guix environment --pure 
> --ad-hoc ghc -- ghc-pkg list gets me time-1.9.3. So I do think the 
> version bounds should be satisfied without any other dependency. Mind 
> sharing more of the package definition?

I think that elm-compiler is built with GHC 8.6.5, not GHC 8.8.3.  When 
I run `guix environment --pure --ad-hoc ghc@8.6.5 -- ghc-pkg list`, its 
output contains `time-1.8.0.2`.  I tried changing the definition of 
`ghc-8` in `haskell.scm` from `ghc-8.6` to `ghc-8.8`, but then 
`integer-logarithms` fails to build.  Maybe I have to upgrade to the 
latest LTS Haskell.

Here is the full package definition:

(define-public elm-compiler
  (package
    (name "elm-compiler")
    (version "0.19.1")
    (source
     (origin
       (method git-fetch)
       (file-name (git-file-name name version))
       (uri (git-reference
             (url "https://github.com/elm/compiler/";)
             (commit version)))
       (sha256
        (base32 "1rdg3xp3js9xadclk3cdypkscm5wahgsfmm4ldcw3xswzhw6ri8w"))
       (patches
        (search-patches "elm-compiler-disable-reactor.patch"))))
    (build-system haskell-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'update-constraints
           (lambda _
             (substitute* "elm.cabal"
               (("ansi-terminal >= 0\\.8 && < 0\\.9,")
                "ansi-terminal >= 0.8 && < 0.10,")
               (("containers >= 0\\.5\\.8\\.2 && < 0\\.6,")
                "containers >= 0.5.8.2 && < 0.7,")
               (("http-client >= 0\\.5 && < 0\\.6,")
                "http-client >= 0.5 && < 0.7,")
               (("language-glsl >= 0\\.0\\.2 && < 0\\.3,")
                "language-glsl >= 0.0.2 && < 0.4,")
               (("network >= 2\\.4 && < 2\\.7,")
                "network >= 2.4 && < 2.9,"))
             #t)))))
    (inputs
     `(("ghc-ansi-terminal" ,ghc-ansi-terminal)
       ("ghc-ansi-wl-pprint" ,ghc-ansi-wl-pprint)
       ("ghc-edit-distance" ,ghc-edit-distance)
       ("ghc-file-embed" ,ghc-file-embed)
       ("ghc-filelock" ,ghc-filelock)
       ("ghc-http" ,ghc-http)
       ("ghc-http-client" ,ghc-http-client)
       ("ghc-http-client-tls" ,ghc-http-client-tls)
       ("ghc-http-types" ,ghc-http-types)
       ("ghc-language-glsl" ,ghc-language-glsl)
       ("ghc-logict" ,ghc-logict)
       ("ghc-network" ,ghc-network)
       ("ghc-raw-strings-qq" ,ghc-raw-strings-qq)
       ("ghc-scientific" ,ghc-scientific)
       ("ghc-sha" ,ghc-sha)
       ("ghc-snap-core" ,ghc-snap-core)
       ("ghc-snap-server" ,ghc-snap-server)
       ("ghc-time-compat" ,ghc-time-compat)
       ("ghc-unordered-containers"
        ,ghc-unordered-containers)
       ("ghc-utf8-string" ,ghc-utf8-string)
       ("ghc-vector" ,ghc-vector)
       ("ghc-zip-archive" ,ghc-zip-archive)))
    (home-page "https://elm-lang.org";)
    (synopsis "Programming language for Web applications")
    (description
     "This package provides Elm, a statically-typed functional programming
language for the browser.  It includes commands for developers such as
@command{elm make} and @command{elm repl}.")
    (license license:bsd-3)))

--
Matthew Kraai