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build-system: Add haskell-build-system.
* guix/build-system/haskell.scm: New file. * guix/build/haskell-build-system.scm: New file. * doc/guix.texi: Add section on 'haskell-build-system'.
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Federico Beffa
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14dfdf2e0e
3 changed files with 374 additions and 0 deletions
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guix/build/haskell-build-system.scm
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guix/build/haskell-build-system.scm
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build haskell-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module (guix build utils)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 rdelim)
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#:use-module (ice-9 regex)
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#:use-module (ice-9 match)
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#:export (%standard-phases
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haskell-build))
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;; Commentary:
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;;
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;; Builder-side code of the standard Haskell package build procedure.
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;;
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;; The Haskell compiler, to find libraries, relies on a library database with
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;; a binary cache. For GHC the cache has to be named 'package.cache'. If every
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;; library would generate the cache at build time, then they would clash in
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;; profiles. For this reason we do not generate the cache when we generate
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;; libraries substitutes. Instead:
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;;
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;; - At build time we use the 'setup-compiler' phase to generate a temporary
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;; library database and its cache.
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;;
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;; - We generate the cache when a profile is created.
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;;
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;; Code:
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;; Directory where we create the temporary libraries database with its cache
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;; as required by the compiler.
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(define %tmp-db-dir
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(string-append (or (getenv "TMP") "/tmp")
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"/package.conf.d"))
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(define (run-setuphs command params)
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(let ((setup-file (cond
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((file-exists? "Setup.hs")
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"Setup.hs")
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((file-exists? "Setup.lhs")
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"Setup.lhs")
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(else
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#f))))
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(if setup-file
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(begin
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(format #t "running \"runhaskell Setup.hs\" with command ~s \
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and parameters ~s~%"
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command params)
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(zero? (apply system* "runhaskell" setup-file command params)))
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(error "no Setup.hs nor Setup.lhs found"))))
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(define* (configure #:key outputs inputs tests? (configure-flags '())
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#:allow-other-keys)
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"Configure a given Haskell package."
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(let* ((out (assoc-ref outputs "out"))
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(input-dirs (match inputs
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(((_ . dir) ...)
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dir)
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(_ '())))
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(params (append `(,(string-append "--prefix=" out))
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`(,(string-append
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"--docdir=" out "/share/doc/"
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(package-name-version out)))
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`(,(string-append "--package-db=" %tmp-db-dir))
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'("--global")
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`(,(string-append
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"--extra-include-dirs="
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(list->search-path-as-string
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(search-path-as-list '("include") input-dirs)
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":")))
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`(,(string-append
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"--extra-lib-dirs="
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(list->search-path-as-string
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(search-path-as-list '("lib") input-dirs)
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":")))
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(if tests?
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'("--enable-tests")
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'())
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configure-flags)))
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(run-setuphs "configure" params)))
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(define* (build #:rest empty)
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"Build a given Haskell package."
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(run-setuphs "build" '()))
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(define* (install #:rest empty)
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"Install a given Haskell package."
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(run-setuphs "copy" '()))
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(define (package-name-version store-dir)
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"Given a store directory STORE-DIR return 'name-version' of the package."
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(let* ((base (basename store-dir)))
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(string-drop base
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(+ 1 (string-index base #\-)))))
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(define (grep rx port)
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"Given a regular-expression RX including a group, read from PORT until the
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first match and return the content of the group."
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(let ((line (read-line port)))
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(if (eof-object? line)
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#f
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(let ((rx-result (regexp-exec rx line)))
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(if rx-result
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(match:substring rx-result 1)
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(grep rx port))))))
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(define* (setup-compiler #:key system inputs outputs #:allow-other-keys)
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"Setup the compiler environment."
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(let* ((haskell (assoc-ref inputs "haskell"))
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(name-version (package-name-version haskell)))
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(cond
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((string-match "ghc" name-version)
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(make-ghc-package-database system inputs outputs))
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(else
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(format #t
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"Compiler ~a not supported~%" name-version)))))
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(define (make-ghc-package-database system inputs outputs)
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"Generate the GHC package database."
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(let* ((haskell (assoc-ref inputs "haskell"))
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(input-dirs (match inputs
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(((_ . dir) ...)
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dir)
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(_ '())))
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(conf-dirs (search-path-as-list
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`(,(string-append "lib/" system "-"
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(package-name-version haskell)
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"/package.conf.d"))
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input-dirs))
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(conf-files (append-map (cut find-files <> "\\.conf$") conf-dirs)))
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(mkdir-p %tmp-db-dir)
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(for-each (lambda (file)
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(copy-file file
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(string-append %tmp-db-dir "/" (basename file))))
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conf-files)
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(zero? (system* "ghc-pkg"
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(string-append "--package-db=" %tmp-db-dir)
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"recache"))))
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(define* (register #:key name system inputs outputs #:allow-other-keys)
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"Generate the compiler registration file for a given Haskell package. Don't
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generate the cache as it would clash in user profiles."
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(let* ((out (assoc-ref outputs "out"))
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(haskell (assoc-ref inputs "haskell"))
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(lib (string-append out "/lib"))
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(config-dir (string-append lib "/" system
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"-" (package-name-version haskell)
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"/package.conf.d"))
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(id-rx (make-regexp "^id: *(.*)$"))
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(lib-rx (make-regexp "lib.*\\.(a|so)"))
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(config-file (string-append config-dir "/" name ".conf"))
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(params
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(list (string-append "--gen-pkg-config=" config-file))))
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(unless (null? (find-files lib lib-rx))
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(mkdir-p config-dir)
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(run-setuphs "register" params)
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(let ((config-file-name+id
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(call-with-ascii-input-file config-file (cut grep id-rx <>))))
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(rename-file config-file
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(string-append config-dir "/" config-file-name+id
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".conf"))))
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#t))
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(define* (check #:key tests? test-target #:allow-other-keys)
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"Run the test suite of a given Haskell package."
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(if tests?
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(run-setuphs test-target '())
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(begin
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(format #t "test suite not run~%")
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#t)))
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(define* (haddock #:key outputs haddock? haddock-flags #:allow-other-keys)
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"Run the test suite of a given Haskell package."
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(if haddock?
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(let* ((out (assoc-ref outputs "out"))
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(doc-src (string-append (getcwd) "/dist/doc"))
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(doc-dest (string-append out "/share/doc/"
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(package-name-version out))))
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(if (run-setuphs "haddock" haddock-flags)
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(begin
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(copy-recursively doc-src doc-dest)
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#t)
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#f))
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#t))
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(define %standard-phases
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(modify-phases gnu:%standard-phases
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(add-before configure setup-compiler setup-compiler)
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(add-after install haddock haddock)
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(add-after install register register)
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(replace install install)
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(replace check check)
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(replace build build)
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(replace configure configure)))
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(define* (haskell-build #:key inputs (phases %standard-phases)
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#:allow-other-keys #:rest args)
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"Build the given Haskell package, applying all of PHASES in order."
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(apply gnu:gnu-build
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#:inputs inputs #:phases phases
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args))
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;;; haskell-build-system.scm ends here
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