;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch> ;;; ;;; This file is part of GNU Guix. ;;; ;;; GNU Guix is free software; you can redistribute it and/or modify it ;;; under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 3 of the License, or (at ;;; your option) any later version. ;;; ;;; GNU Guix is distributed in the hope that it will be useful, but ;;; WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. (define-module (guix build-system haskell) #:use-module (guix store) #:use-module (guix utils) #:use-module (guix packages) #:use-module (guix derivations) #:use-module (guix download) #:use-module (guix search-paths) #:use-module (guix build-system) #:use-module (guix build-system gnu) #:use-module (ice-9 match) #:use-module (srfi srfi-26) #:export (%haskell-build-system-modules haskell-build haskell-build-system)) ;; Commentary: ;; ;; Standard build procedure for Haskell packages using 'Setup.hs'. This is ;; implemented as an extension of 'gnu-build-system'. ;; ;; Code: (define %haskell-build-system-modules ;; Build-side modules imported by default. `((guix build haskell-build-system) ,@%gnu-build-system-modules)) (define (default-haskell) "Return the default Haskell package." ;; Lazily resolve the binding to avoid a circular dependency. (let ((haskell (resolve-interface '(gnu packages haskell)))) (module-ref haskell 'ghc))) (define (source-url->revision-url url revision) "Convert URL (a Hackage source URL) to the URL for the Cabal file at version REVISION." (let* ((last-slash (string-rindex url #\/)) (next-slash (string-rindex url #\/ 0 last-slash))) (string-append (substring url 0 next-slash) (substring url last-slash (- (string-length url) (string-length ".tar.gz"))) "/revision/" revision ".cabal"))) (define* (lower name #:key source inputs native-inputs outputs system target (haskell (default-haskell)) cabal-revision #:allow-other-keys #:rest arguments) "Return a bag for NAME." (define private-keywords '(#:target #:haskell #:cabal-revision #:inputs #:native-inputs)) (define (cabal-revision->origin cabal-revision) (match cabal-revision ((revision hash) (origin (method url-fetch) (uri (source-url->revision-url (origin-uri source) revision)) (sha256 (base32 hash)) (file-name (string-append name "-" revision ".cabal")))) (#f #f))) (and (not target) ;XXX: no cross-compilation (bag (name name) (system system) (host-inputs `(,@(if source `(("source" ,source)) '()) ,@(match (cabal-revision->origin cabal-revision) (#f '()) (revision `(("cabal-revision" ,revision)))) ,@inputs ;; Keep the standard inputs of 'gnu-build-system'. ,@(standard-packages))) (build-inputs `(("haskell" ,haskell) ,@native-inputs)) (outputs outputs) (build haskell-build) (arguments (strip-keyword-arguments private-keywords arguments))))) (define* (haskell-build store name inputs #:key source (haddock? #t) (haddock-flags ''()) (tests? #t) (test-target "test") (configure-flags ''()) (phases '(@ (guix build haskell-build-system) %standard-phases)) (outputs '("out")) (search-paths '()) (system (%current-system)) (guile #f) (imported-modules %haskell-build-system-modules) (modules '((guix build haskell-build-system) (guix build utils)))) "Build SOURCE using HASKELL, and with INPUTS. This assumes that SOURCE provides a 'Setup.hs' file as its build system." (define builder `(begin (use-modules ,@modules) (haskell-build #:name ,name #:source ,(match (assoc-ref inputs "source") (((? derivation? source)) (derivation->output-path source)) ((source) source) (source source)) #:cabal-revision ,(match (assoc-ref inputs "cabal-revision") (((? derivation? revision)) (derivation->output-path revision)) (revision revision)) #:configure-flags ,configure-flags #:haddock-flags ,haddock-flags #:system ,system #:test-target ,test-target #:tests? ,tests? #:haddock? ,haddock? #:phases ,phases #:outputs %outputs #:search-paths ',(map search-path-specification->sexp search-paths) #:inputs %build-inputs))) (define guile-for-build (match guile ((? package?) (package-derivation store guile system #:graft? #f)) (#f ; the default (let* ((distro (resolve-interface '(gnu packages commencement))) (guile (module-ref distro 'guile-final))) (package-derivation store guile system #:graft? #f))))) (build-expression->derivation store name builder #:inputs inputs #:system system #:modules imported-modules #:outputs outputs #:guile-for-build guile-for-build)) (define haskell-build-system (build-system (name 'haskell) (description "The standard Haskell build system") (lower lower))) ;;; haskell.scm ends here