[oe-commits] [openembedded-core] 03/09: classes/reproducible_build: Move SDE deploy to another directory
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Mon Sep 16 22:14:11 UTC 2019
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit a5d38549e49ebfc0191b79b6072f637b9454a122
Author: Joshua Watt <jpewhacker at gmail.com>
AuthorDate: Mon Sep 16 13:21:14 2019 -0500
classes/reproducible_build: Move SDE deploy to another directory
The deployment of the source date epoch file had a race condition where
any task attempting to read from the file would race with creation of
the sstate archive for the do_deploy_source_date_epoch task. The
creation of the sstate archive requires moving the directory to a
temporary location, then moving it back. This means that the file
disappears for a short period of time, which will cause a failure if any
other task is running and trying to open the file to get the current
source date epoch.
The solution is to copy the source date epoch file to a separate
directory when deploying so the file never disappears. When the file is
restored from sstate, it is moved to the correct location after being
extracted.
[YOCTO #13501]
Signed-off-by: Joshua Watt <JPEWhacker at gmail.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
meta/classes/reproducible_build.bbclass | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/meta/classes/reproducible_build.bbclass b/meta/classes/reproducible_build.bbclass
index 8788ad7..4753d45 100644
--- a/meta/classes/reproducible_build.bbclass
+++ b/meta/classes/reproducible_build.bbclass
@@ -39,19 +39,23 @@ inherit ${@oe.utils.ifelse(d.getVar('BUILD_REPRODUCIBLE_BINARIES') == '1', 'repr
SDE_DIR ="${WORKDIR}/source-date-epoch"
SDE_FILE = "${SDE_DIR}/__source_date_epoch.txt"
+SDE_DEPLOYDIR = "${WORKDIR}/deploy-source-date-epoch"
SSTATETASKS += "do_deploy_source_date_epoch"
do_deploy_source_date_epoch () {
echo "Deploying SDE to ${SDE_DIR}."
+ mkdir -p ${SDE_DEPLOYDIR}
+ cp -p ${SDE_FILE} ${SDE_DEPLOYDIR}/__source_date_epoch.txt
}
python do_deploy_source_date_epoch_setscene () {
sstate_setscene(d)
+ os.rename(os.path.join(d.getVar('SDE_DEPLOYDIR'), '__source_date_epoch.txt'), d.getVar('SDE_FILE'))
}
-do_deploy_source_date_epoch[dirs] = "${SDE_DIR}"
-do_deploy_source_date_epoch[sstate-plaindirs] = "${SDE_DIR}"
+do_deploy_source_date_epoch[dirs] = "${SDE_DEPLOYDIR}"
+do_deploy_source_date_epoch[sstate-plaindirs] = "${SDE_DEPLOYDIR}"
addtask do_deploy_source_date_epoch_setscene
addtask do_deploy_source_date_epoch before do_configure after do_patch
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