script to create ubuntu rootfs overlay for silos

overlay.sh

#!/bin/sh

if [ -z $1 ] ; then echo "$0: silo_number [release] [team] [arch]" && exit 1 ; fi
SILO=$1
RELEASE=${2:-"vivid"}
TEAM=${3:-"ci-train-ppa-service"}
ARCH=${4:-"armhf"}

PACKAGES_URL="http://ppa.launchpad.net/${TEAM}/landing-${SILO}/ubuntu/dists/${RELEASE}/main/binary-${ARCH}/Packages.gz"
PACKAGES=$(curl -s ${PACKAGES_URL} | gzip -cd | grep ^Package: | grep -v -- -dev\$ | cut -d: -f2)
if [ -z "$PACKAGES" ] ; then echo "http://ppa.launchpad.net/${TEAM}/landing-${SILO}/ubuntu/dists/${RELEASE}/main/binary-${ARCH}/Packages.gz" "package found not\n" ; exit 2 ; fi

set -e
if [ ! -d overlay ] ; then mkdir overlay ; fi

for PACKAGE in ${PACKAGES} ; do 
    build/tools/pull-lp-bin.py -a ${ARCH} -t ${TEAM} -p landing-${SILO} ${PACKAGE} ${RELEASE} -o overlay
done

for d in overlay/*.deb ; do 
    dpkg-deb -x $d overlay 
done
rm -rf overlay/*.deb overlay/usr/share/doc