From: Jérôme Pouiller Date: Tue, 20 Dec 2016 13:46:23 +0000 (+0100) Subject: python2: generate reproducible .pyc X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=edbe7e815ec55117ed58a70d8a8f7f5d9848b5eb;p=buildroot.git python2: generate reproducible .pyc .pyc files contain the modification time of the corresponding .py source. In order to make the build reproducible, we fix the modification time of all .py before compiling .pyc files. In addition, since pycompile relies on the modification time to know if a file needs to be recompiled, it is safer to force recompilation of all source files. This work was sponsored by `BA Robotic Systems'. Signed-off-by: Jérôme Pouiller Reviewed-by: Samuel Martin [Thomas: do not register PYTHON_FIX_TIME as a PYTHON_TARGET_FINALIZE_HOOKS, instead call it inside PYTHON_CREATE_PYC_FILES before doing the byte compilation.] Signed-off-by: Thomas Petazzoni --- diff --git a/package/python/python.mk b/package/python/python.mk index 8f4e298c4c..1787576188 100644 --- a/package/python/python.mk +++ b/package/python/python.mk @@ -244,10 +244,18 @@ PYTHON_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/sysconfigdata/ $(eval $(autotools-package)) $(eval $(host-autotools-package)) +ifeq ($(BR2_REPRODUCIBLE),y) +define PYTHON_FIX_TIME + find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.py' -print0 | \ + xargs -0 --no-run-if-empty touch -d @$(SOURCE_DATE_EPOCH) +endef +endif + define PYTHON_CREATE_PYC_FILES + $(PYTHON_FIX_TIME) PYTHONPATH="$(PYTHON_PATH)" \ $(HOST_DIR)/usr/bin/python$(PYTHON_VERSION_MAJOR) \ - support/scripts/pycompile.py \ + support/scripts/pycompile.py $(if $(BR2_REPRODUCIBLE),--force) \ $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) endef