core-admin/ci/lvm-manage

# This is to include LVM-requiring tests in Travis-CI
if [ "$1" = "setup-lvm" -a -n "$2" ]; then
    POOL_PATH=$2
    VG_NAME=`echo $POOL_PATH | cut -f 1 -d /`
    POOL_NAME=`echo $POOL_PATH | cut -f 2 -d /`
    if lvs $VG_NAME >/dev/null 2>&1 || lvs $POOL_PATH >/dev/null 2>&1; then
        echo "WARNING: either VG '$VG_NAME' or thin pool '$POOL_PATH' already exists, not reusing" >&2
        exit 1
    fi
    set -e
    loop_file=`mktemp`
    truncate -s 1G $loop_file
    loop_dev=`losetup -f --show $loop_file`
    # auto cleanup
    rm -f $loop_file
    vgcreate "$VG_NAME" $loop_dev
    lvcreate --thinpool "$POOL_NAME" --type thin-pool -L 960M "$VG_NAME"
    exit 0
elif [ "$1" = "cleanup-lvm" -a -n "$2" ]; then
    VG_NAME=`echo $2 | cut -f 1 -d /`
    set -e
    pvs=`vgs --noheadings -o pv_name $VG_NAME | tr -d ' '`
    lvremove -f "$2"
    vgremove "$VG_NAME"
    losetup -d $pvs
    exit 0
fi