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Memoize values of macros that execute python to get their value

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Macros like %{python3_sitelib} were evaluated at every instance in the spec
(each time, Python was started, sysconfig was imported...).
When there were many instances (40+), it might have taken more than a minute to parse the spec file.

This way, the macros are defined via %global on first usage.
Every repetitive usage reuses the actual value.
This commit is contained in:
Miro Hrončok 2023-01-06 15:04:29 +01:00
commit 3ca74ad94c
4 changed files with 34 additions and 20 deletions
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18
macros.python
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@ -3,18 +3,18 @@
# nb: $RPM_BUILD_ROOT is not set when the macros are expanded (at spec parse time)
# so we set it manually (to empty string), making our Python prefer the correct install scheme location
# platbase/base is explicitly set to %%{_prefix} to support custom values, such as /app for flatpaks
%python_sitelib %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_path('purelib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")
%python_sitearch %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_path('platlib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")
%python_version %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; sys.stdout.write('{0.major}.{0.minor}'.format(sys.version_info))")
%python_version_nodots %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; sys.stdout.write('{0.major}{0.minor}'.format(sys.version_info))")
%python_platform %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_platform())")
%python_platform_triplet %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_config_var('MULTIARCH'))")
%python_ext_suffix %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")
%python_cache_tag %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; print(sys.implementation.cache_tag)")
%python_sitelib %{global python_sitelib %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_path('purelib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")}%{python_sitelib}
%python_sitearch %{global python_sitearch %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_path('platlib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")}%{python_sitearch}
%python_version %{global python_version %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; sys.stdout.write('{0.major}.{0.minor}'.format(sys.version_info))")}%{python_version}
%python_version_nodots %{global python_version_nodots %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; sys.stdout.write('{0.major}{0.minor}'.format(sys.version_info))")}%{python_version_nodots}
%python_platform %{global python_platform %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_platform())")}%{python_platform}
%python_platform_triplet %{global python_platform_triplet %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_config_var('MULTIARCH'))")}%{python_platform_triplet}
%python_ext_suffix %{global python_ext_suffix %(RPM_BUILD_ROOT= %{__python} -Esc "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")}%{python_ext_suffix}
%python_cache_tag %{global python_cache_tag %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; print(sys.implementation.cache_tag)")}%{python_cache_tag}
%py_setup setup.py
%_py_shebang_s s
%_py_shebang_P %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; print('P' if hasattr(sys.flags, 'safe_path') else '')")
%_py_shebang_P %{global _py_shebang_P %(RPM_BUILD_ROOT= %{__python} -Esc "import sys; print('P' if hasattr(sys.flags, 'safe_path') else '')")}%{_py_shebang_P}
%py_shbang_opts -%{?_py_shebang_s}%{?_py_shebang_P}
%py_shbang_opts_nodash %(opts=%{py_shbang_opts}; echo ${opts#-})
%py_shebang_flags %(opts=%{py_shbang_opts}; echo ${opts#-})