- only emit rst2html5 alternatives for python 3

- switch the "docutils" provides to the python 3 package (all the comands live ther)

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-docutils?expand=0&rev=42

python-docutils.spec

@@ -32,13 +32,13 @@ BuildRequires:  %{python_module xml}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-xml
-%ifpython2
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
+BuildArch:      noarch
+%ifpython3
 Provides:       docutils = %{version}
 Obsoletes:      docutils < %{version}
 %endif
-Requires(post):   update-alternatives
-Requires(preun):  update-alternatives
-BuildArch:      noarch
 %python_subpackages
 
 %description
@@ -47,12 +47,12 @@ such as HTML, XML, and LaTeX. For input Docutils supports reStructuredText, an
 easy-to-read, what-you-see-is-what-you-get plaintext markup syntax.
 
 %prep
-%setup -n docutils-%{version}
+%setup -q -n docutils-%{version}
 # Remove useless ".py" ending from executables:
 for i in tools/rst*; do mv "$i" "${i/.py}"; done
 sed -i "s|'tools/\(rst.*\)\.py'|'tools/\1'|" setup.py
 # Remove shebang from non-executable files
-for i in {'code_analyzer','error_reporting','punctuation_chars','smartquotes','math/latex2mathml','math/math2html','math/tex2mathml_extern'}; do 
+for i in {'code_analyzer','error_reporting','punctuation_chars','smartquotes','math/latex2mathml','math/math2html','math/tex2mathml_extern'}; do
 sed -i -e "1d" "docutils/utils/$i.py"
 done
 sed -i -e "1d" "docutils/writers/xetex/__init__.py" "docutils/writers/_html_base.py"
@@ -69,12 +69,16 @@ mv %{buildroot}%{_bindir}/rst2html5 %{buildroot}%{_bindir}/rst2html5-docutils
 ln -s -f %{_sysconfdir}/alternatives/rst2html5 %{buildroot}%{_bindir}/rst2html5
 
 %post
+%ifpython3
 update-alternatives --install %{_bindir}/rst2html5 rst2html5 %{_bindir}/rst2html5-docutils 15
+%endif
 
-%preun
+%postun
+%ifpython3
 if [ ! -f %{_bindir}/rst2html5-docutils ] ; then
    update-alternatives --remove rst2html5 %{_bindir}/rst2html5-docutils
 fi
+%endif
 
 %check
 %python_exec -c 'import subprocess; import sys; sys.exit(subprocess.call([sys.executable, "test/alltests.py" if sys.version_info[0] == 2 else "test3/alltests.py"]))'