import python3x-pip-19.2.3-5.module+el8.2.0+5979+f9f0b1d2

SPECS/python3x-pip.spec

@@ -16,7 +16,7 @@ Name:           python3x-%{srcname}
 # When updating, update the bundled libraries versions bellow!
 # You can use vendor_meta.sh in the dist git repo
 Version:        19.2.3
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A tool for installing and managing Python packages
 
 # We bundle a lot of libraries with pip, which itself is under MIT license.
@@ -193,6 +193,11 @@ BuildRequires:  ca-certificates
 Requires:       ca-certificates
 Requires:  python%{python3_pkgversion}-setuptools
 
+# python38 installs the alternatives master symlink to which we attach a slave
+Requires: python38
+Requires(post): python38
+Requires(postun): python38
+
 # Virtual provides for the packages bundled by pip:
 %{bundled 3.8}
 
@@ -327,6 +332,10 @@ rm %{buildroot}%{_bindir}/pip
 rm %{buildroot}%{_bindir}/pip3
 rm %{buildroot}%{_bindir}/pip-3
 
+# All ghost files controlled by alternatives need to exist for the files
+# section check to succeed
+touch %{buildroot}%{_bindir}/pip3
+touch %{buildroot}%{_bindir}/pip-3
 
 
 %if %{with tests}
@@ -351,6 +360,34 @@ ln -sf %{buildroot}%{_bindir}/pip3 _bin/pip
 %endif
 
 
+%post -n python%{python3_pkgversion}-%{srcname}
+alternatives --add-slave python3 %{_bindir}/python3.8 \
+    %{_bindir}/pip3 \
+    pip3 \
+    %{_bindir}/pip3.8
+alternatives --add-slave python3 %{_bindir}/python3.8 \
+    %{_bindir}/pip-3 \
+    pip-3 \
+    %{_bindir}/pip-3.8
+
+%postun -n python%{python3_pkgversion}-%{srcname}
+# Do this only during uninstall process (not during update)
+if [ $1 -eq 0 ]; then
+    # Only remove the slave links if the master link for python3 still exists.
+    # Due to a possible bug in yum, python38 gets removed before python38-pip
+    # even though we have declared Requires(postun): python38
+    EXISTS=`alternatives --display python3 | \
+          grep -c "^/usr/bin/python3.8 - priority [0-9]*"`
+
+    if [ $EXISTS -ne 0 ]; then
+        alternatives --remove-slave python3 %{_bindir}/python3.8 \
+            pip3
+        alternatives --remove-slave python3 %{_bindir}/python3.8 \
+            pip-3
+    fi
+fi
+
+
 %files -n python%{python3_pkgversion}-%{srcname}
 %license LICENSE.txt
 %doc README.rst
@@ -363,6 +400,8 @@ ln -sf %{buildroot}%{_bindir}/pip3 _bin/pip
 %{python3_sitelib}/pip*
 %dir %{bashcompdir}
 %{bashcompdir}/pip3.8
+%ghost %{_bindir}/pip3
+%ghost %{_bindir}/pip-3
 
 %if %{with doc}
 %files doc
@@ -378,6 +417,10 @@ ln -sf %{buildroot}%{_bindir}/pip3 _bin/pip
 %{python_wheeldir}/%{python_wheelname}
 
 %changelog
+* Mon Mar 09 2020 Tomas Orsava <torsava@redhat.com> - 19.2.3-5
+- Implement the alternatives system for the executables
+- Resolves: rhbz#1807041
+
 * Fri Dec 13 2019 Tomas Orsava <torsava@redhat.com> - 19.2.3-4
 - Exclude unsupported i686 arch