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package/python-babel: add purge locale data support

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Add purge loacle data support (inspired by BR2_ENABLE_LOCALE_PURGE
handling in Makefile) to reduce target space allocation by the
python-babel package, e.g. from 32MB to 24K for
target/usr/lib/python3.11/site-packages/babel/locale-data with
BR2_ENABLE_LOCALE_WHITELIST="C en_US de_DE".

The special en_US_POSIX locale data is kept as it is used by default
by the python-babel code:

0ce196fccc/babel/core.py (L1076)

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Peter Seiderer 2023-04-18 23:32:41 +02:00 committed by Thomas Petazzoni
parent 7b2e5e6550
commit 2b3e87e118
1 changed files with 13 additions and 0 deletions
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13
package/python-babel/python-babel.mk
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@ -12,5 +12,18 @@ PYTHON_BABEL_LICENSE = BSD-3-Clause
PYTHON_BABEL_LICENSE_FILES = LICENSE
HOST_PYTHON_BABEL_DEPENDENCIES = host-python-pytz
# purge locale data (if enabled), keep special en_US_POSIX data which
# is used by default by the python-babel code
ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
define PYTHON_BABEL_CLEANUP_LOCALE
for i in `ls $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages/babel/locale-data/*.dat`; \
do \
i_base=`basename "$$i" .dat`; \
echo "$(BR2_ENABLE_LOCALE_WHITELIST) en_US_POSIX" | grep -qw "$$i_base" || rm "$$i"; \
done
endef
PYTHON_BABEL_TARGET_FINALIZE_HOOKS += PYTHON_BABEL_CLEANUP_LOCALE
endif
$(eval $(python-package))
$(eval $(host-python-package))