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[v3,13/18] python2: generate reproducible .pyc

Message ID 1479899298-14655-14-git-send-email-jezz@sysmic.org
State Superseded
Headers show

Commit Message

Jérôme Pouiller Nov. 23, 2016, 11:08 a.m. UTC 
.pyc files contain modification time of .py source. In order to make
build reproducible, we fix modification time of all .py before to
compile .pyc files.

This work was sponsored by `BA Robotic Systems'.

Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
---
 package/python/python.mk | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
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Patch

diff --git a/package/python/python.mk b/package/python/python.mk
index cc65376..c17b267 100644
--- a/package/python/python.mk
+++ b/package/python/python.mk
@@ -226,10 +226,18 @@  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 @$(SOURCE_DATE_EPOCH)
+endef
+PYTHON_TARGET_FINALIZE_HOOKS += PYTHON_FIX_TIME
+endif
+
 define PYTHON_CREATE_PYC_FILES
 	PYTHONPATH="$(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