Remove .dist-info directory at the end of %pyproject_buildrequires

An incomplete .dist-info directory in $PWD can confuse tests in %check.
For example, virtualenv uses importlib.metadata to load its
entry points and it does not work when it finds a virtualenv...dist-info without them.

Related: rhbz#2208971

macros.pyproject

@@ -172,6 +172,8 @@ if [ -f %{__python3} ]; then
   CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}" TMPDIR="%{_pyproject_builddir}" \\\
   RPM_TOXENV="%{toxenv}" HOSTNAME="rpmbuild" %{__python3} -Bs %{_rpmconfigdir}/redhat/pyproject_buildrequires.py %{?!_python_no_extras_requires:--generate-extras} --python3_pkgversion %{python3_pkgversion} --wheeldir %{_pyproject_wheeldir} %{?**}
 fi
+# Incomplete .dist-info dir might confuse importlib.metadata
+rm -rfv *.dist-info/ >&2
 }
 
 

pyproject-rpm-macros.spec

@@ -12,7 +12,7 @@ License:        MIT
 #   Increment Y and reset Z when new macros or features are added
 #   Increment Z when this is a bugfix or a cosmetic change
 # Dropping support for EOL Fedoras is *not* considered a breaking change
-Version:        1.6.2
+Version:        1.6.3
 Release:        1%{?dist}
 
 # Macro files
@@ -149,6 +149,10 @@ export HOSTNAME="rpmbuild"  # to speedup tox in network-less mock, see rhbz#1856
 
 
 %changelog
+* Mon Feb 13 2023 Lumír Balhar <lbalhar@redhat.com> - 1.6.3-1
+- Remove .dist-info directory at the end of %%pyproject_buildrequires
+- An incomplete .dist-info directory in $PWD can confuse tests in %%check
+
 * Wed Feb 08 2023 Lumír Balhar <lbalhar@redhat.com> - 1.6.2-1
 - Improve detection of lang files
 

tests/python-virtualenv.spec

@@ -0,0 +1,65 @@
+Name:           python-virtualenv
+Version:        20.19.0
+Release:        0%{?dist}
+Summary:        Tool to create isolated Python environments
+
+License:        MIT
+URL:            http://pypi.python.org/pypi/virtualenv
+Source:         %{pypi_source virtualenv}
+
+BuildArch:      noarch
+BuildRequires:  python3-devel
+BuildRequires:  python3-flaky
+BuildRequires:  python3-pytest
+
+%description
+This specfile was added as a regression test to
+https://src.fedoraproject.org/rpms/pyproject-rpm-macros/pull-request/363
+
+It uses hatchling without %%pyproject_buildrequires -w.
+
+
+%package -n     python3-virtualenv
+Summary:        %{summary}
+
+%description -n python3-virtualenv
+...
+
+
+%prep
+%autosetup -p1 -n virtualenv-%{version}
+# Relax the upper bounds of some dependencies to their known available versions in Fedora 36
+# This can be reduced once Fedora 36 goes EOL, but might still be partially needed on Fedora 37
+sed -i -e 's/distlib<1,>=0.3.6/distlib<1,>=0.3.4/' \
+       -e 's/filelock<4,>=3.4.1/filelock<4,>=3.3.1/' \
+       -e 's/platformdirs<4,>=2.4/platformdirs<4,>=2.3/' \
+    pyproject.toml
+
+
+%generate_buildrequires
+%pyproject_buildrequires
+
+
+%build
+%pyproject_wheel
+
+
+%install
+%pyproject_install
+%pyproject_save_files virtualenv
+%{?fc36:
+# old version of setuptools_scm produces files incompatible with
+# assumptions in virtualenv code, we append the expected attributes:
+echo '__version__, __version_tuple__ = version, version_tuple' >> %{buildroot}%{python3_sitelib}/virtualenv/version.py
+}
+
+
+%check
+# test_main fails when .dist-info is not deleted at the end of %%pyproject_buildrequires
+PIP_CERT=/etc/pki/tls/certs/ca-bundle.crt \
+%pytest -v -k test_main
+
+
+%files -n python3-virtualenv -f %{pyproject_files}
+%doc README.md
+%{_bindir}/virtualenv

tests/tests.yml

@@ -92,6 +92,9 @@
     - fake_requirements:
         dir: .
         run: ./mocktest.sh fake-requirements
+    - virtualenv:
+        dir: .
+        run: ./mocktest.sh python-virtualenv
     - escape_percentages:
         dir: .
         run: rpmbuild -ba escape_percentages.spec