contrib/dockerrpm

filemerge: explicitly tests for None

Changeset 758526333dec removed the mutable default value, but did not explicitly
tested for None. Such implicit testing can introduce semantic and performance
issue. We move to an explicit testing for None as recommended by PEP8:

https://www.python.org/dev/peps/pep-0008/#programming-recommendations

#!/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"