From e05e2a7a75fb7994df48423ecebb7bf1a6ea8177 Mon Sep 17 00:00:00 2001
From: Marius Bakke <marius@gnu.org>
Date: Mon, 17 Oct 2022 21:44:31 +0200
Subject: gnu: python-pygmsh: Use pyproject-build-system.

* gnu/packages/simulation.scm (python-pygmsh)[build-system]: Switch to
PYPROJECT-BUILD-SYSTEM.
[arguments]: Remove redundant phases.
[native-inputs]: Remove PYTHON-PYPA-BUILD.
---
 gnu/packages/simulation.scm | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index 9e6ef4ada3..256e404970 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -63,6 +63,7 @@
   #:use-module (guix svn-download)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system pyproject)
   #:use-module (guix build-system python)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
@@ -835,7 +836,7 @@ tools and a collection of Python modules for programmatic use.")
        (sha256
         (base32
          "11flp2c4ynk1fhanf4mqyzrpd0gjbnv6afrwwc7xi3mb6ms69lr0"))))
-    (build-system python-build-system)
+    (build-system pyproject-build-system)
     (arguments
      (list
       #:phases
@@ -845,21 +846,8 @@ tools and a collection of Python modules for programmatic use.")
               ;; Due to lack of metadata, the gmsh Python package is not
               ;; detected although importable.
               (substitute* "pyproject.toml"
-                (("\"gmsh\",") ""))))
-          ;; XXX: PEP 517 manual build copied from python-isort.
-          (replace 'build
-            (lambda _
-              (invoke "python" "-m" "build" "--wheel" "--no-isolation" ".")))
-          (replace 'check
-            (lambda* (#:key tests? #:allow-other-keys)
-              (when tests?
-                (invoke "pytest" "-v" "tests"))))
-          (replace 'install
-            (lambda _
-              (let ((whl (car (find-files "dist" "\\.whl$"))))
-                (invoke "pip" "--no-cache-dir" "--no-input"
-                        "install" "--no-deps" "--prefix" #$output whl)))))))
-    (native-inputs (list python-pypa-build python-flit-core python-pytest))
+                (("\"gmsh\",") "")))))))
+    (native-inputs (list python-flit-core python-pytest))
     (propagated-inputs (list gmsh python-meshio python-numpy))
     (home-page "https://github.com/nschloe/pygmsh")
     (synopsis "Python frontend for Gmsh")
-- 
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