33/77: gnu: Add python-setuptools-scm-next.

[guix-commits]

z572 pushed a commit to branch master
in repository guix.

commit 6d6f16f4b2069f288d0eb9deff61c74a18f4d725
Author: Zheng Junjie <zhengjunjie@iscas.ac.cn>
AuthorDate: Tue Aug 27 16:06:19 2024 +0800

    gnu: Add python-setuptools-scm-next.
    
    * gnu/packages/python-build.scm (python-setuptools-scm-next): New variable.
    
    Change-Id: Ic6b95ed437f95c25c165de3d51732154e2bd954a
---
 gnu/packages/python-build.scm | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/gnu/packages/python-build.scm b/gnu/packages/python-build.scm
index 5b46272bde..47c9c5a9ff 100644
--- a/gnu/packages/python-build.scm
+++ b/gnu/packages/python-build.scm
@@ -11,6 +11,7 @@
 ;;; Copyright © 2022 Garek Dyszel <garekdyszel@disroot.org>
 ;;; Copyright © 2022 Greg Hogan <code@greghogan.com>
 ;;; Copyright © 2024 David Elsing <david.elsing@posteo.net>
+;;; Copyright © 2024 Zheng Junjie <873216071@qq.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -677,6 +678,37 @@ system, then @code{flit_core} to build the package.")
 them as the version argument or in a SCM managed file.")
     (license license:expat)))
 
+(define-public python-setuptools-scm-next
+  (package
+    (inherit python-setuptools-scm)
+    (name "python-setuptools-scm")
+    (version "8.1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "setuptools_scm" version))
+              (sha256
+               (base32 
"19y84rzqwb2rd88bjrlafrhfail2bnk6apaig8xskjviayva3pj2"))))
+    (build-system pyproject-build-system)
+    (arguments (list
+                ;; pyproject-build-system will error handle forms such as
+                ;; "module:object", so we set it.
+                #:build-backend "setuptools.build_meta"
+                #:phases
+                #~(modify-phases %standard-phases
+                    (add-before 'build 'setenv
+                      (lambda _
+                        ;; pyproject-build-system ignore backend-path,
+                        ;; and __import__ ignore GUIX_PYTHONPATH, so set
+                        ;; PYTHONPATH.
+                        (setenv "PYTHONPATH"
+                                (string-append
+                                 (getcwd)
+                                 ":"
+                                 (getcwd) "/src:"
+                                 (getenv "GUIX_PYTHONPATH"))))))
+                #:tests? #f))    ;avoid extra dependencies such as pytest
+    (native-inputs (list python-setuptools))))
+
 (define-public python-editables
   (package
     (name "python-editables")