rpms/python3.9
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POC: keep only cache for large, autogenerated files

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This saves about 2 MiB from the package. When all rpms get extracted,
the comparison is as follows on an ext4 filesystem:

With this patch:
$ du -s usr
195828 usr/

Without this patch:
$ du -s usr
198224 usr/

Which is a difference of 2.396 MiB.

To reduce the filesystem footprint of the Python installation, some
files are now being removed and only one level of their pycache
(non-optimized) is being kept.

These particular files were chosen for their size and the fact that they
are autogenerated, thus hard to read.
This commit is contained in:
Marcel Plch 2020-07-14 12:58:56 +02:00 committed by churchyard
parent 0a760f01ca
commit 740668aab7
1 changed files with 11 additions and 1 deletions
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12
python3.9.spec
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@ -17,7 +17,7 @@ URL: https://www.python.org/
%global prerel b4
%global upstream_version %{general_version}%{?prerel}
Version: %{general_version}%{?prerel:~%{prerel}}
Release: 1%{?dist}
Release: 2%{?dist}
License: Python
@ -1014,6 +1014,13 @@ ln -s ./python3-debug %{buildroot}%{_bindir}/python-debug
%endif
%endif
# Remove large, autogenerated sources and keep only the non-optimized pycache
for file in %{buildroot}%{pylibdir}/pydoc_data/topics.py $(grep --include='*.py' -lr %{buildroot}%{pylibdir}/encodings -e 'Python Character Mapping Codec .* from .* with gencodec.py'); do
directory=$(dirname ${file})
module=$(basename ${file%%.py})
mv ${directory}/{__pycache__/${module}.cpython-%{pyshortver}.pyc,${module}.pyc}
rm ${directory}/{__pycache__/${module}.cpython-%{pyshortver}.opt-?.pyc,${module}.py}
done
# ======================================================
# Checks for packaging issues
@ -1595,6 +1602,9 @@ CheckPython optimized
# ======================================================
%changelog
* Thu Jul 16 2020 Marcel Plch <mplch@redhat.com> - 3.9.0~b4-2
- Remove large, autogenerated Python sources and redundant pycache levels to reduce filesystem footprint
* Sat Jul 04 2020 Tomas Hrnciar <thrnciar@redhat.com> - 3.9.0~b4-1
- Update to 3.9.0b4