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authorJuro Bystricky <juro.bystricky@intel.com>2017-08-19 10:21:57 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-08-23 08:47:05 +0100
commit2a044f1e4f5c63e11e631b31f741c7aabfa6f601 (patch)
treee7dc0b86ceff13924f0e0ca45a5b2e10aa378b59
parent6cfd520ea050aa449f0ac7ee0b2c647d14d588ad (diff)
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python2.7: improve reproducibility
The compiled .pyc files contain time stamp corresponding to the compile time. This prevents binary reproducibility. This patch allows to achieve binary reproducibility by overriding the build time stamp by the value exported via SOURCE_DATE_EPOCH. Patch by Bernhard M. Wiedemann, backported from https://github.com/python/cpython/pull/296 [YOCTO#11241] Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-devtools/python/python/support_SOURCE_DATE_EPOCH_in_py_compile_2.7.patch34
-rw-r--r--meta/recipes-devtools/python/python_2.7.13.bb1
2 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-devtools/python/python/support_SOURCE_DATE_EPOCH_in_py_compile_2.7.patch b/meta/recipes-devtools/python/python/support_SOURCE_DATE_EPOCH_in_py_compile_2.7.patch
new file mode 100644
index 00000000000..12651798ee6
--- /dev/null
+++ b/meta/recipes-devtools/python/python/support_SOURCE_DATE_EPOCH_in_py_compile_2.7.patch
@@ -0,0 +1,34 @@
+The compiled .pyc files contain time stamp corresponding to the compile time.
+This prevents binary reproducibility. This patch allows to achieve binary
+reproducibility by overriding the build time stamp by the value
+exported via SOURCE_DATE_EPOCH.
+
+Patch by Bernhard M. Wiedemann
+
+Upstream-Status: Backport
+
+Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
+
+Fri Feb 24 17:08:25 UTC 2017 - bwiedemann@suse.com
+
+- Add reproducible.patch to allow reproducible builds of various
+ python packages like python-amqp
+ Upstream: https://github.com/python/cpython/pull/296
+
+
+@@ -0,0 +1,15 @@
+Index: Python-2.7.13/Lib/py_compile.py
+===================================================================
+--- Python-2.7.13.orig/Lib/py_compile.py
++++ Python-2.7.13/Lib/py_compile.py
+@@ -108,6 +108,10 @@ def compile(file, cfile=None, dfile=None
+ timestamp = long(os.fstat(f.fileno()).st_mtime)
+ except AttributeError:
+ timestamp = long(os.stat(file).st_mtime)
++ sde = os.environ.get('SOURCE_DATE_EPOCH')
++ if sde and timestamp > int(sde):
++ timestamp = int(sde)
++ os.utime(file, (timestamp, timestamp))
+ codestring = f.read()
+ try:
+ codeobject = __builtin__.compile(codestring, dfile or file,'exec')
diff --git a/meta/recipes-devtools/python/python_2.7.13.bb b/meta/recipes-devtools/python/python_2.7.13.bb
index 98bc8ada8b1..4d73cd25c8b 100644
--- a/meta/recipes-devtools/python/python_2.7.13.bb
+++ b/meta/recipes-devtools/python/python_2.7.13.bb
@@ -28,6 +28,7 @@ SRC_URI += "\
file://add-CROSSPYTHONPATH-for-PYTHON_FOR_BUILD.patch \
file://Don-t-use-getentropy-on-Linux.patch \
file://pass-missing-libraries-to-Extension-for-mul.patch \
+ file://support_SOURCE_DATE_EPOCH_in_py_compile_2.7.patch \
"
S = "${WORKDIR}/Python-${PV}"