cache: safer handling of failing seek when writing revision branch cache
If the seek for some reason fails (perhaps because the file is too short to
search to the requested position), make sure we seek to the start and rewrite
everything.
It is unknown if this fixes a real problem that ever happened.
#!/bin/bash -e
. $(dirname $0)/dockerlib.sh
BUILDDIR=$(dirname $0)
export ROOTDIR=$(cd $BUILDDIR/..; pwd)
checkdocker
PLATFORM="$1"
shift # extra params are passed to buildrpm
initcontainer $PLATFORM
RPMBUILDDIR=$ROOTDIR/packages/$PLATFORM
contrib/buildrpm --rpmbuilddir $RPMBUILDDIR --prepare $*
DSHARED=/mnt/shared
$DOCKER run -u $DBUILDUSER --rm -v $RPMBUILDDIR:$DSHARED $CONTAINER \
rpmbuild --define "_topdir $DSHARED" -ba $DSHARED/SPECS/mercurial.spec --clean
$DOCKER run -u $DBUILDUSER --rm -v $RPMBUILDDIR:$DSHARED $CONTAINER \
createrepo $DSHARED
cat << EOF > $RPMBUILDDIR/mercurial.repo
# Place this file in /etc/yum.repos.d/mercurial.repo
[mercurial]
name=Mercurial packages for $PLATFORM
# baseurl=file://$RPMBUILDDIR/
baseurl=http://hg.example.com/build/$PLATFORM/
skip_if_unavailable=True
gpgcheck=0
enabled=1
EOF
echo
echo "Build complete - results can be found in $RPMBUILDDIR"