maint: Merge sanity-check-next.py into sanity-check.py.

* gnu/packages/aux-files/python/sanity-check-next.py: Rename to...
* gnu/packages/aux-files/python/sanity-check.py: ... this.
* guix/build-system/pyproject.scm (sanity-check.py): Adjust file name.
* Makefile.am (AUX_FILES): De-register sanity-check-next.py.

Makefile.am

@@ -434,7 +434,6 @@ AUX_FILES =						\
   gnu/packages/aux-files/linux-libre/4.14-x86_64.conf	\
   gnu/packages/aux-files/pack-audit.c			\
   gnu/packages/aux-files/python/sanity-check.py		\
-  gnu/packages/aux-files/python/sanity-check-next.py	\
   gnu/packages/aux-files/python/sitecustomize.py	\
   gnu/packages/aux-files/renpy/renpy.in	\
   gnu/packages/aux-files/run-in-namespace.c

gnu/packages/aux-files/python/sanity-check-next.py

@@ -1,99 +0,0 @@
-# -*- coding: utf-8 -*-
-# GNU Guix --- Functional package management for GNU
-# Copyright © 2021, 2022 Lars-Dominik Braun <lars@6xq.net>
-#
-# This file is part of GNU Guix.
-#
-# GNU Guix is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or (at
-# your option) any later version.
-#
-# GNU Guix is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
-
-# This version adds a small change to accommodate missing python-setuptools.
-# TODO: Merge with sanity-check.py in the next core-updates cycle.
-
-from __future__ import print_function  # Python 2 support.
-import importlib
-import sys
-import traceback
-try:
-    import pkg_resources
-except ImportError:
-    print('Warning: Skipping, because python-setuptools are not available.')
-    sys.exit(0)
-
-try:
-    from importlib.machinery import PathFinder
-except ImportError:
-    PathFinder = None
-
-ret = 0
-
-# Only check site-packages installed by this package, but not dependencies
-# (which pkg_resources.working_set would include). Path supplied via argv.
-ws = pkg_resources.find_distributions(sys.argv[1])
-
-for dist in ws:
-    print('validating', repr(dist.project_name), dist.location)
-    try:
-        print('...checking requirements: ', end='')
-        req = str(dist.as_requirement())
-        # dist.activate() is not enough to actually check requirements, we
-        # have to .require() it.
-        pkg_resources.require(req)
-        print('OK')
-    except Exception as e:
-        print('ERROR:', req, repr(e))
-        ret = 1
-        continue
-
-    # Try to load top level modules. This should not have any side-effects.
-    try:
-        metalines = dist.get_metadata_lines('top_level.txt')
-    except (KeyError, EnvironmentError):
-        # distutils (i.e. #:use-setuptools? #f) will not install any metadata.
-        # This file is also missing for packages built using a PEP 517 builder
-        # such as poetry.
-        print('WARNING: cannot determine top-level modules')
-        continue
-    for name in metalines:
-        # Only available on Python 3.
-        if PathFinder and PathFinder.find_spec(name) is None:
-            # Ignore unavailable modules, often C modules, which were not
-            # installed at the top-level. Cannot use ModuleNotFoundError,
-            # because it is raised by failed imports too.
-            continue
-        try:
-            print('...trying to load module', name, end=': ')
-            importlib.import_module(name)
-            print('OK')
-        except Exception:
-            print('ERROR:')
-            traceback.print_exc(file=sys.stdout)
-            ret = 1
-
-    # Try to load entry points of console scripts too, making sure they
-    # work. They should be removed if they don't. Other groups may not be
-    # safe, as they can depend on optional packages.
-    for group, v in dist.get_entry_map().items():
-        if group not in {'console_scripts', 'gui_scripts'}:
-            continue
-        for name, ep in v.items():
-            try:
-                print('...trying to load endpoint', group, name, end=': ')
-                ep.load()
-                print('OK')
-            except Exception:
-                print('ERROR:')
-                traceback.print_exc(file=sys.stdout)
-                ret = 1
-
-sys.exit(ret)

gnu/packages/aux-files/python/sanity-check.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
+# Copyright © 2021, 2022 Lars-Dominik Braun <lars@6xq.net>
 #
 # This file is part of GNU Guix.
 #
@@ -19,9 +19,13 @@
 
 from __future__ import print_function  # Python 2 support.
 import importlib
-import pkg_resources
 import sys
 import traceback
+try:
+    import pkg_resources
+except ImportError:
+    print('Warning: Skipping, because python-setuptools are not available.')
+    sys.exit(0)
 
 try:
     from importlib.machinery import PathFinder

guix/build-system/pyproject.scm

@@ -55,8 +55,7 @@ (define (default-python)
     (module-ref python 'python-toolchain)))
 
 (define sanity-check.py
-  ;; TODO: Merge with sanity-check.py in the next rebuild cycle.
+  (search-auxiliary-file "python/sanity-check.py"))
-  (search-auxiliary-file "python/sanity-check-next.py"))
 
 (define* (lower name
                 #:key source inputs native-inputs outputs system target