Adapt pyproject_install macro to PEP 610

With changes in PEP 610 there is new file direct_url.json created, since it is not useful
for us we prevent it's creation. This commit changes %pyproject_install macro to install wheel using
name instead of path.

This commit also includes new test to check if file direct_url.json wasn't created.

https://discuss.python.org/t/pep-610-usage-guidelines-for-linux-distributions/4012

macros.pyproject

@@ -21,8 +21,9 @@ CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}" \\\
 
 
 %pyproject_install() %{expand:\\\
+specifier=$(ls %{_pyproject_wheeldir}/*.whl | xargs basename --multiple | sed -E 's/([^-]+)-([^-]+)-.+\\\.whl/\\\1==\\\2/')
 export TMPDIR="${PWD}/%{_pyproject_builddir}"
-%{__python3} -m pip install --root %{buildroot} --no-deps --disable-pip-version-check --progress-bar off --verbose --ignore-installed --no-warn-script-location %{_pyproject_wheeldir}/*.whl
+%{__python3} -m pip install --root %{buildroot} --no-deps --disable-pip-version-check --progress-bar off --verbose --ignore-installed --no-warn-script-location --no-index --no-cache-dir --find-links %{_pyproject_wheeldir} $specifier
 if [ -d %{buildroot}%{_bindir} ]; then
   pathfix.py -pni "%{__python3}" -k%{?py3_shbang_opts: -a%{py3_shbang_opts_nodash}} %{buildroot}%{_bindir}/*
   rm -rfv %{buildroot}%{_bindir}/__pycache__

pyproject-rpm-macros.spec

@@ -6,7 +6,7 @@ License:        MIT
 
 # Keep the version at zero and increment only release
 Version:        0
-Release:        14%{?dist}
+Release:        15%{?dist}
 
 # Macro files
 Source001:      macros.pyproject
@@ -100,6 +100,9 @@ install -m 644 pyproject_save_files.py  %{buildroot}%{_rpmconfigdir}/redhat/
 %license LICENSE
 
 %changelog
+* Thu May 07 2020 Tomas Hrnciar <thrnciar@redhat.com> - 0-15
+- Adapt %%pyproject_install not to create a PEP 610 direct_url.json file
+
 * Wed Apr 15 2020 Patrik Kopkan <pkopkan@redhat.com> - 0-14
 - Add %%pyproject_save_file macro for generating file section
 - Handle extracting debuginfo from extension modules (#1806625)

tests/tldr.spec

@@ -15,6 +15,7 @@ A Python package containing executables.
 Building this tests:
 - there are no bytecompiled files in %%{_bindir}
 - the executable's shebang is adjusted properly
+- file direct_url.json isn't created
 
 %prep
 %autosetup -n %{name}-%{version}
@@ -36,6 +37,9 @@ test ! -d %{buildroot}%{_bindir}/__pycache__
 # Internal check for our macros: tests we have a proper shebang line
 head -n1 %{buildroot}%{_bindir}/%{name}.py | grep -E '#!\s*%{python3}\s+%{py3_shbang_opts}\s*$'
 
+# Internal check for our macros: tests that direct_url.json file wasn't created
+test ! -e %{buildroot}%{python3_sitelib}/*.dist-info/direct_url.json
+
 %files -f %pyproject_files
 %license LICENSE
 %doc README.md