From 46bcdcc287ecfc1db8b7a0429e72517f407b580d Mon Sep 17 00:00:00 2001
From: Marius Bakke <mbakke@fastmail.com>
Date: Thu, 29 Sep 2016 18:41:35 +0100
Subject: [PATCH] guix: python-build-system: Import setuptools before calling
`setup.py'.
This is needed for packages using "distutils" instead of "setuptools" since
the former does not understand the "--single-version-externally-managed"
flag. Also export __file__ since it will be unset when setup.py is called from
python "exec".
* guix/build/python-build-system.scm (call-setuppy): extend "python setup.py"
call to import setuptools, export __file__, and call setup.py from
setuptools python environment.
Co-Authored-By: Hartmut Goebel <h.goebel@crazy-compilers.com>
---
guix/build/python-build-system.scm | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/guix/build/python-build-system.scm b/guix/build/python-build-system.scm
index 2424fed3108..6086df3e827 100644
--- a/guix/build/python-build-system.scm
+++ b/guix/build/python-build-system.scm
@@ -36,13 +36,25 @@ (define-module (guix build python-build-system)
;;
;; Code:
+(define setuptools-shim
+ ;; Run setup.py with "setuptools" being imported, which will patch
+ ;; "distutils". This is needed for packages using "distutils" instead of
+ ;; "setuptools" since the former does not understand the
+ ;; "--single-version-externally-managed" flag.
+ ;; Python code taken from pip 9.0.1 pip/utils/setuptools_build.py
+ (string-append
+ "import setuptools, tokenize;__file__='setup.py';"
+ "f=getattr(tokenize, 'open', open)(__file__);"
+ "code=f.read().replace('\\r\\n', '\\n');"
+ "f.close();"
+ "exec(compile(code, __file__, 'exec'))"))
(define (call-setuppy command params)
(if (file-exists? "setup.py")
(begin
(format #t "running \"python setup.py\" with command ~s and parameters ~s~%"
command params)
- (zero? (apply system* "python" "setup.py" command params)))
+ (zero? (apply system* "python" "-c" setuptools-shim command params)))
(error "no setup.py found")))
(define* (build #:rest empty)
--
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