183 lines
7.3 KiB
Scheme
183 lines
7.3 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
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;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
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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-system python)
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#:use-module (guix store)
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#:use-module (guix utils)
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#:use-module (guix packages)
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#:use-module (guix derivations)
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#:use-module (guix build-system)
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#:use-module (guix build-system gnu)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-26)
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#:export (package-with-python2
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python-build
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python-build-system))
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;; Commentary:
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;;
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;; Standard build procedure for Python packages using 'setup.py'. This is
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;; implemented as an extension of 'gnu-build-system'.
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;;
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;; Code:
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(define (default-python)
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"Return the default Python package."
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;; Lazily resolve the binding to avoid a circular dependency.
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(let ((python (resolve-interface '(gnu packages python))))
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(module-ref python 'python-wrapper)))
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(define (default-python2)
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"Return the default Python 2 package."
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(let ((python (resolve-interface '(gnu packages python))))
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(module-ref python 'python-2)))
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(define (package-with-explicit-python p python old-prefix new-prefix)
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"Create a package with the same fields as P, which is assumed to use
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PYTHON-BUILD-SYSTEM, such that it is compiled with PYTHON instead. The
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inputs are changed recursively accordingly. If the name of P starts with
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OLD-PREFIX, this is replaced by NEW-PREFIX; otherwise, NEW-PREFIX is
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prepended to the name."
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(let* ((build-system (package-build-system p))
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(rewrite-if-package
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(lambda (content)
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;; CONTENT may be a file name, in which case it is returned, or a
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;; package, which is rewritten with the new PYTHON and NEW-PREFIX.
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(if (package? content)
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(package-with-explicit-python content python
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old-prefix new-prefix)
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content)))
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(rewrite
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(match-lambda
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((name content . rest)
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(append (list name (rewrite-if-package content)) rest)))))
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(package (inherit p)
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(name
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(let ((name (package-name p)))
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(if (eq? build-system python-build-system)
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(string-append new-prefix
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(if (string-prefix? old-prefix name)
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(substring name (string-length old-prefix))
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name))
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name)))
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(arguments
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(let ((arguments (package-arguments p)))
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(if (eq? build-system python-build-system)
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(if (member #:python arguments)
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(substitute-keyword-arguments arguments ((#:python p) python))
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(append arguments `(#:python ,python)))
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arguments)))
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(inputs
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(map rewrite (package-inputs p)))
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(native-inputs
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(map rewrite (package-native-inputs p))))))
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(define package-with-python2
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(cut package-with-explicit-python <> (default-python2) "python-" "python2-"))
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(define* (lower name
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#:key source inputs native-inputs outputs system target
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(python (default-python))
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#:allow-other-keys
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#:rest arguments)
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"Return a bag for NAME."
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(define private-keywords
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'(#:source #:target #:python #:inputs #:native-inputs))
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(and (not target) ;XXX: no cross-compilation
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(bag
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(name name)
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(system system)
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(host-inputs `(,@(if source
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`(("source" ,source))
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'())
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,@inputs
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;; Keep the standard inputs of 'gnu-build-system'.
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,@(standard-packages)))
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(build-inputs `(("python" ,python)
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,@native-inputs))
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(outputs outputs)
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(build python-build)
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(arguments (strip-keyword-arguments private-keywords arguments)))))
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(define* (python-build store name inputs
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#:key
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(tests? #t)
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(test-target "test")
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(configure-flags ''())
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(phases '(@ (guix build python-build-system)
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%standard-phases))
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(outputs '("out"))
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(search-paths '())
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(system (%current-system))
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(guile #f)
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(imported-modules '((guix build python-build-system)
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(guix build gnu-build-system)
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(guix build utils)))
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(modules '((guix build python-build-system)
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(guix build utils))))
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"Build SOURCE using PYTHON, and with INPUTS. This assumes that SOURCE
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provides a 'setup.py' file as its build system."
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(define builder
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`(begin
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(use-modules ,@modules)
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(python-build #:name ,name
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#:source ,(match (assoc-ref inputs "source")
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(((? derivation? source))
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(derivation->output-path source))
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((source)
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source)
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(source
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source))
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#:configure-flags ,configure-flags
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#:system ,system
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#:test-target ,test-target
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#:tests? ,tests?
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#:phases ,phases
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#:outputs %outputs
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#:search-paths ',(map search-path-specification->sexp
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search-paths)
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#:inputs %build-inputs)))
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(define guile-for-build
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(match guile
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((? package?)
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(package-derivation store guile system))
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(#f ; the default
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(let* ((distro (resolve-interface '(gnu packages commencement)))
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(guile (module-ref distro 'guile-final)))
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(package-derivation store guile system)))))
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(build-expression->derivation store name builder
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#:inputs inputs
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#:system system
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#:modules imported-modules
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#:outputs outputs
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#:guile-for-build guile-for-build))
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(define python-build-system
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(build-system
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(name 'python)
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(description "The standard Python build system")
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(lower lower)))
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;;; python.scm ends here
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