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build: Use stable file ordering in sysupgrade.tar

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The file ordering in the current sysupgrade depends on the order of file in
a filesystem. This is often already in a sane (alphabetical order) but this
is not always the case. For example, the OpenWrt build servers return a
different ordering.

This breaks the reproducibility of the sysupgrade tarballs significantly
and also resulted in images which cannot be used for upgrades on devices
like the OpenMesh A42/A62.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Sven Eckelmann 2018-12-06 11:09:18 +01:00 committed by Mathias Kresin
parent 15f6351ea3
commit 894bcf59dc
1 changed files with 1 additions and 1 deletions
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2
scripts/sysupgrade-tar.sh
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@ -61,7 +61,7 @@ if [ -n "$SOURCE_DATE_EPOCH" ]; then
mtime="--mtime=@${SOURCE_DATE_EPOCH}"
fi
(cd "$tmpdir"; tar cvf sysupgrade.tar sysupgrade-${board} ${mtime})
(cd "$tmpdir"; tar --sort=name -cvf sysupgrade.tar sysupgrade-${board} ${mtime})
err="$?"
if [ -e "$tmpdir/sysupgrade.tar" ]; then
cp "$tmpdir/sysupgrade.tar" "$outfile"