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54 lines
2.1 KiB
54 lines
2.1 KiB
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
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From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz> |
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Date: Thu, 11 Jul 2019 13:44:13 +0200 |
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Subject: [PATCH] 00328: Restore pyc to TIMESTAMP invalidation mode as default |
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in rpmbuild |
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Since Fedora 31, the $SOURCE_DATE_EPOCH is set in rpmbuild to the latest |
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%changelog date. This makes Python default to the CHECKED_HASH pyc |
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invalidation mode, bringing more reproducible builds traded for an import |
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performance decrease. To avoid that, we don't default to CHECKED_HASH |
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when $RPM_BUILD_ROOT is set (i.e. when we are building RPM packages). |
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See https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/57#comment-27426 |
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Downstream only: only used when building RPM packages |
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Ideally, we should talk to upstream and explain why we don't want this |
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--- |
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Lib/py_compile.py | 3 ++- |
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Lib/test/test_py_compile.py | 2 ++ |
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2 files changed, 4 insertions(+), 1 deletion(-) |
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diff --git a/Lib/py_compile.py b/Lib/py_compile.py |
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index a81f493731..bba3642bf2 100644 |
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--- a/Lib/py_compile.py |
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+++ b/Lib/py_compile.py |
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@@ -70,7 +70,8 @@ class PycInvalidationMode(enum.Enum): |
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def _get_default_invalidation_mode(): |
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- if os.environ.get('SOURCE_DATE_EPOCH'): |
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+ if (os.environ.get('SOURCE_DATE_EPOCH') and not |
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+ os.environ.get('RPM_BUILD_ROOT')): |
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return PycInvalidationMode.CHECKED_HASH |
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else: |
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return PycInvalidationMode.TIMESTAMP |
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diff --git a/Lib/test/test_py_compile.py b/Lib/test/test_py_compile.py |
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index e6791c6916..b2d3dcf7fb 100644 |
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--- a/Lib/test/test_py_compile.py |
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+++ b/Lib/test/test_py_compile.py |
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@@ -19,6 +19,7 @@ def without_source_date_epoch(fxn): |
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def wrapper(*args, **kwargs): |
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with support.EnvironmentVarGuard() as env: |
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env.unset('SOURCE_DATE_EPOCH') |
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+ env.unset('RPM_BUILD_ROOT') |
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return fxn(*args, **kwargs) |
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return wrapper |
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@@ -29,6 +30,7 @@ def with_source_date_epoch(fxn): |
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def wrapper(*args, **kwargs): |
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with support.EnvironmentVarGuard() as env: |
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env['SOURCE_DATE_EPOCH'] = '123456789' |
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+ env.unset('RPM_BUILD_ROOT') |
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return fxn(*args, **kwargs) |
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return wrapper |
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