build-system/haskell: Generate Setup.hs if needed.

The default Setup.hs is boilerplate that is frequently left out of
source packages.  Several packages already add a phase to generate it,
so moving this phase to the build system is just factoring out an
existing pattern.

See <https://github.com/phadej/time-compat/issues/4>.

* guix/build/haskell-build-system.scm (generate-setuphs): New procedure.
(%standard-phases): Add it after 'unpack'.
* gnu/packages/haskell.scm (ghc-foundation, ghc-inline-c,
ghc-inline-c-cpp, ghc-rio): Remove 'arguments'.

Signed-off-by: Timothy Sample <samplet@ngyro.com>
This commit is contained in:
Robert Vollmert 2019-05-27 21:56:18 +02:00 committed by Timothy Sample
parent 5f9f2c82e6
commit ed8d3f33a5
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GPG Key ID: 2AC6A5EC1C357C59
2 changed files with 12 additions and 42 deletions

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@ -9703,16 +9703,6 @@ packages.")
(base32
"1q43y8wfj0wf9gdq2kzphwjwq6m5pvryy1lqgk954aq5z3ks1lsf"))))
(build-system haskell-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-after 'unpack 'add-setup-script
(lambda _
;; The usual "Setup.hs" script is missing from the source.
(with-output-to-file "Setup.hs"
(lambda ()
(format #t "import Distribution.Simple~%")
(format #t "main = defaultMain~%"))))))))
(inputs `(("ghc-basement" ,ghc-basement)))
(home-page "https://github.com/haskell-foundation/foundation")
(synopsis "Alternative prelude with batteries and no dependencies")
@ -10590,16 +10580,6 @@ widths to the Char type.")
(base32
"064h8a4hp53a479d3ak0vmqbx8hi0cpg7zn4wp23rjy26dka8p7g"))))
(build-system haskell-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-after 'unpack 'add-setup-script
(lambda _
;; The usual "Setup.hs" script is missing from the source.
(with-output-to-file "Setup.hs"
(lambda ()
(format #t "import Distribution.Simple~%")
(format #t "main = defaultMain~%"))))))))
(inputs
`(("ghc-exceptions" ,ghc-exceptions)
("ghc-hashable" ,ghc-hashable)
@ -11122,17 +11102,6 @@ DOS/Windows paths and markup languages (such as XML).")
(base32
"0vbfrsqsi7mdziqsnj68bsqlwbqxxhvrmy9rv6w8z18d1m8w3n6h"))))
(build-system haskell-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-after 'unpack 'create-Setup.hs
(lambda _
(with-output-to-file "Setup.hs"
(lambda _
(display "\
import Distribution.Simple
main = defaultMain")))
#t)))))
(inputs
`(("ghc-ansi-wl-pprint" ,ghc-ansi-wl-pprint)
("ghc-cryptohash" ,ghc-cryptohash)
@ -11266,17 +11235,6 @@ handling wrong.")
(base32
"1rk7fmpkmxw9hhwr8df29kadnf0ybnwj64ggdbnsdrpfyhnkisci"))))
(build-system haskell-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-after 'unpack 'create-Setup.hs
(lambda _
(with-output-to-file "Setup.hs"
(lambda _
(display "\
import Distribution.Simple
main = defaultMain")))
#t)))))
(inputs
`(("ghc-inline-c" ,ghc-inline-c)
("ghc-safe-exceptions" ,ghc-safe-exceptions)))

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@ -275,9 +275,21 @@ given Haskell package."
(_ (error "Could not find a Cabal file to patch."))))
#t)
(define* (generate-setuphs #:rest empty)
"Generate a default Setup.hs if needed."
(when (not (or (file-exists? "Setup.hs")
(file-exists? "Setup.lhs")))
(format #t "generating missing Setup.hs~%")
(with-output-to-file "Setup.hs"
(lambda ()
(format #t "import Distribution.Simple~%")
(format #t "main = defaultMain~%"))))
#t)
(define %standard-phases
(modify-phases gnu:%standard-phases
(add-after 'unpack 'patch-cabal-file patch-cabal-file)
(add-after 'unpack 'generate-setuphs generate-setuphs)
(delete 'bootstrap)
(add-before 'configure 'setup-compiler setup-compiler)
(add-before 'install 'haddock haddock)