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+#!/usr/bin/env bash

+

+# Keep track of the current directory

+TOOLS_DIR=$(cd $(dirname "$0") && pwd)

+TOP_DIR=`cd $TOOLS_DIR/..; pwd`

+

+# cd to top of devstack

+cd $TOP_DIR

+

+# Echo usage

+usage() {

+    echo "Cache OpenStack dependencies on a uec image to speed up performance."

+    echo ""

+    echo "Usage: $0 [full path to raw uec base image]"

+}

+

+# Make sure this is a raw image

+if ! qemu-img info $1 | grep -q "file format: raw"; then

+    usage

+    exit 1

+fi

+

+# Mount the image

+STAGING_DIR=`mktemp -d uec.XXXXXXXXXX`

+mkdir -p $STAGING_DIR

+mount -t ext4 -o loop $1 $STAGING_DIR

+

+# Make sure that base requirements are installed

+cp /etc/resolv.conf $STAGING_DIR/etc/resolv.conf

+

+# Perform caching on the base image to speed up subsequent runs

+chroot $STAGING_DIR apt-get update

+chroot $STAGING_DIR apt-get install -y --download-only `cat files/apts/* | grep NOPRIME | cut -d\# -f1`

+chroot $STAGING_DIR apt-get install -y --force-yes `cat files/apts/* | grep -v NOPRIME | cut -d\# -f1`

+chroot $STAGING_DIR pip install `cat files/pips/*`

+umount $STAGING_DIR && rm -rf $STAGING_DIR