diff options
Diffstat (limited to 'guix/build-system/python.scm')
| -rw-r--r-- | guix/build-system/python.scm | 89 |
1 files changed, 44 insertions, 45 deletions
diff --git a/guix/build-system/python.scm b/guix/build-system/python.scm index d4d3d28f2a..17173f121e 100644 --- a/guix/build-system/python.scm +++ b/guix/build-system/python.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr> ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org> ;;; @@ -21,7 +21,7 @@ (define-module (guix build-system python) #:use-module (guix store) #:use-module (guix utils) - #:use-module (guix combinators) + #:use-module (guix memoization) #:use-module (guix packages) #:use-module (guix derivations) #:use-module (guix search-paths) @@ -87,49 +87,48 @@ pre-defined variants." ;; Memoize the transformations. Failing to do that, we would build a huge ;; object graph with lots of duplicates, which in turns prevents us from ;; benefiting from memoization in 'package-derivation'. - (memoize ;FIXME: use 'eq?' - (lambda (p) - (let* ((rewrite-if-package - (lambda (content) - ;; CONTENT may be a file name, in which case it is returned, - ;; or a package, which is rewritten with the new PYTHON and - ;; NEW-PREFIX. - (if (package? content) - (transform content) - content))) - (rewrite - (match-lambda - ((name content . rest) - (append (list name (rewrite-if-package content)) rest))))) - - (cond - ;; If VARIANT-PROPERTY is present, use that. - ((and variant-property - (assoc-ref (package-properties p) variant-property)) - => force) - - ;; Otherwise build the new package object graph. - ((eq? (package-build-system p) python-build-system) - (package - (inherit p) - (location (package-location p)) - (name (let ((name (package-name p))) - (string-append new-prefix - (if (string-prefix? old-prefix name) - (substring name - (string-length old-prefix)) - name)))) - (arguments - (let ((python (if (promise? python) - (force python) - python))) - (ensure-keyword-arguments (package-arguments p) - `(#:python ,python)))) - (inputs (map rewrite (package-inputs p))) - (propagated-inputs (map rewrite (package-propagated-inputs p))) - (native-inputs (map rewrite (package-native-inputs p))))) - (else - p)))))) + (mlambdaq (p) + (let* ((rewrite-if-package + (lambda (content) + ;; CONTENT may be a file name, in which case it is returned, + ;; or a package, which is rewritten with the new PYTHON and + ;; NEW-PREFIX. + (if (package? content) + (transform content) + content))) + (rewrite + (match-lambda + ((name content . rest) + (append (list name (rewrite-if-package content)) rest))))) + + (cond + ;; If VARIANT-PROPERTY is present, use that. + ((and variant-property + (assoc-ref (package-properties p) variant-property)) + => force) + + ;; Otherwise build the new package object graph. + ((eq? (package-build-system p) python-build-system) + (package + (inherit p) + (location (package-location p)) + (name (let ((name (package-name p))) + (string-append new-prefix + (if (string-prefix? old-prefix name) + (substring name + (string-length old-prefix)) + name)))) + (arguments + (let ((python (if (promise? python) + (force python) + python))) + (ensure-keyword-arguments (package-arguments p) + `(#:python ,python)))) + (inputs (map rewrite (package-inputs p))) + (propagated-inputs (map rewrite (package-propagated-inputs p))) + (native-inputs (map rewrite (package-native-inputs p))))) + (else + p))))) transform) |