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oeqa: reproducible: Do two clean builds

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Perform two clean builds without sstate instead of one partial rebuild
with sstate and one clean build without. There are some classes of
reproducibility issues that this solves, and while we would like to
resolve them in the long term the direction to do so is not currently
clear.

(From OE-Core rev: e97c529bfa4e1d0038ea44f15ee3298003daf981)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Joshua Watt
2019-08-29 10:31:06 -05:00
committed by Richard Purdie
parent dc04d6cdc2
commit 7e01f2fdad
1 changed files with 32 additions and 24 deletions
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56
meta/lib/oeqa/selftest/cases/reproducible.py
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@@ -123,45 +123,53 @@ class ReproducibleTests(OESelftestTestCase):
def test_reproducible_builds(self):
capture_vars = ['DEPLOY_DIR_' + c.upper() for c in self.package_classes]
common_config = textwrap.dedent('''\
INHERIT += "reproducible_build"
PACKAGE_CLASSES = "%s"
''') % (' '.join('package_%s' % c for c in self.package_classes))
# Do an initial build. It's acceptable for this build to use sstate
self.write_config(common_config)
vars_reference = get_bb_vars(capture_vars)
bitbake(' '.join(self.images))
# Build native utilities
self.write_config('')
bitbake("diffutils-native -c addto_recipe_sysroot")
diffutils_sysroot = get_bb_var("RECIPE_SYSROOT_NATIVE", "diffutils-native")
reproducible_tmp = os.path.join(self.topdir, 'reproducible', 'tmp')
if os.path.exists(reproducible_tmp):
bb.utils.remove(reproducible_tmp, recurse=True)
# Perform another build. This build should *not* share sstate or pull
# from any mirrors, but sharing a DL_DIR is fine
self.write_config((textwrap.dedent('''\
TMPDIR = "%s"
# Reproducible builds should not pull from sstate or mirrors, but
# sharing DL_DIR is fine
common_config = textwrap.dedent('''\
INHERIT += "reproducible_build"
PACKAGE_CLASSES = "%s"
SSTATE_DIR = "${TMPDIR}/sstate"
SSTATE_MIRROR = ""
''') % reproducible_tmp) + common_config)
vars_test = get_bb_vars(capture_vars)
''') % (' '.join('package_%s' % c for c in self.package_classes))
# Perform a build.
reproducibleA_tmp = os.path.join(self.topdir, 'reproducibleA', 'tmp')
if os.path.exists(reproducibleA_tmp):
bb.utils.remove(reproducibleA_tmp, recurse=True)
self.write_config((textwrap.dedent('''\
TMPDIR = "%s"
''') % reproducibleA_tmp) + common_config)
vars_A = get_bb_vars(capture_vars)
bitbake(' '.join(self.images))
# NOTE: The temp directory from the reproducible build is purposely
# Perform another build.
reproducibleB_tmp = os.path.join(self.topdir, 'reproducibleB', 'tmp')
if os.path.exists(reproducibleB_tmp):
bb.utils.remove(reproducibleB_tmp, recurse=True)
self.write_config((textwrap.dedent('''\
TMPDIR = "%s"
''') % reproducibleB_tmp) + common_config)
vars_B = get_bb_vars(capture_vars)
bitbake(' '.join(self.images))
# NOTE: The temp directories from the reproducible build are purposely
# kept after the build so it can be diffed for debugging.
for c in self.package_classes:
with self.subTest(package_class=c):
package_class = 'package_' + c
deploy_reference = vars_reference['DEPLOY_DIR_' + c.upper()]
deploy_test = vars_test['DEPLOY_DIR_' + c.upper()]
deploy_A = vars_A['DEPLOY_DIR_' + c.upper()]
deploy_B = vars_B['DEPLOY_DIR_' + c.upper()]
result = self.compare_packages(deploy_reference, deploy_test, diffutils_sysroot)
result = self.compare_packages(deploy_A, deploy_B, diffutils_sysroot)
self.logger.info('Reproducibility summary for %s: %s' % (c, result))