diff options
Diffstat (limited to 'guix/build-system/python.scm')
| -rw-r--r-- | guix/build-system/python.scm | 66 |
1 files changed, 58 insertions, 8 deletions
diff --git a/guix/build-system/python.scm b/guix/build-system/python.scm index b60adb182f..cf7ca7d3e1 100644 --- a/guix/build-system/python.scm +++ b/guix/build-system/python.scm @@ -1,5 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2013 Andreas Enge <andreas@enge.fr> ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org> ;;; ;;; This file is part of GNU Guix. @@ -25,7 +26,9 @@ #:use-module (guix build-system) #:use-module (guix build-system gnu) #:use-module (ice-9 match) - #:export (python-build + #:use-module (srfi srfi-26) + #:export (package-with-python2 + python-build python-build-system)) ;; Commentary: @@ -39,13 +42,60 @@ "Return the default Python package." ;; Lazily resolve the binding to avoid a circular dependency. (let ((python (resolve-interface '(gnu packages python)))) - (module-ref python 'python))) + (module-ref python 'python-wrapper))) + +(define (default-python2) + "Return the default Python 2 package." + (let ((python (resolve-interface '(gnu packages python)))) + (module-ref python 'python-2))) + +(define (package-with-explicit-python p python old-prefix new-prefix) + "Create a package with the same fields as P, which is assumed to use +PYTHON-BUILD-SYSTEM, such that it is compiled with PYTHON instead. The +inputs are changed recursively accordingly. If the name of P starts with +OLD-PREFIX, this is replaced by NEW-PREFIX; otherwise, NEW-PREFIX is +prepended to the name." + (let* ((build-system (package-build-system p)) + (rewrite-if-package + (lambda (content) + ;; CONTENT may be a string (e.g., for patches), in which case it + ;; is returned, or a package, which is rewritten with the new + ;; PYTHON and NEW-PREFIX. + (if (package? content) + (package-with-explicit-python content python + old-prefix new-prefix) + content))) + (rewrite + (match-lambda + ((name content . rest) + (append (list name (rewrite-if-package content)) rest))))) + (package (inherit p) + (name + (let ((name (package-name p))) + (if (eq? build-system python-build-system) + (string-append new-prefix + (if (string-prefix? old-prefix name) + (substring name (string-length old-prefix)) + name)) + name))) + (arguments + (let ((arguments (package-arguments p))) + (if (eq? build-system python-build-system) + (if (member #:python arguments) + (substitute-keyword-arguments arguments ((#:python p) python)) + (append arguments `(#:python ,python))) + arguments))) + (inputs + (map rewrite (package-inputs p))) + (native-inputs + (map rewrite (package-native-inputs p)))))) + +(define package-with-python2 + (cut package-with-explicit-python <> (default-python2) "python-" "python2-")) (define* (python-build store name source inputs #:key (python (default-python)) - (python-version - (string-take (package-version (default-python)) 3)) (tests? #t) (configure-flags ''()) (phases '(@ (guix build python-build-system) @@ -58,10 +108,10 @@ (guix build gnu-build-system) (guix build utils))) (modules '((guix build python-build-system) - (guix build gnu-build-system) (guix build utils)))) "Build SOURCE using PYTHON, and with INPUTS. This assumes that SOURCE provides a 'setup.py' file as its build system." + (define python-search-paths (append (package-native-search-paths python) (standard-search-paths))) @@ -70,15 +120,15 @@ provides a 'setup.py' file as its build system." `(begin (use-modules ,@modules) (python-build #:name ,name - #:source ,(if (and source (derivation-path? source)) - (derivation-path->output-path source) + #:source ,(if (derivation? source) + (derivation->output-path source) source) #:configure-flags ,configure-flags #:system ,system #:test-target "test" #:tests? ,tests? + #:phases ,phases #:outputs %outputs - #:python-version ,python-version #:search-paths ',(map search-path-specification->sexp (append python-search-paths search-paths)) |