Speed up build and run tests

scripts/package-initrd

@@ -1,41 +1,21 @@
 #!/bin/bash
 set -e
 
-rootfs() {
-  DFS=$(docker run -d --privileged -v /lib/modules/$(uname -r):/lib/modules/$(uname -r) ${DFS_IMAGE}${SUFFIX})
-  trap "docker rm -fv ${DFS_ARCH} ${DFS}" EXIT
-  docker exec -i ${DFS} docker load < ${INITRD_DIR}/usr/share/ros/images.tar
-  docker stop ${DFS}
-  docker run --rm --volumes-from=${DFS} rancher/os-dapper-base tar -c -C /var/lib/docker ./image | tar -x -C ${PREPOP_DIR}
-  docker run --rm --volumes-from=${DFS} rancher/os-dapper-base tar -c -C /var/lib/docker ./overlay | tar -x -C ${PREPOP_DIR}
-
-  tar -cf ${ARTIFACTS}/rootfs.tar  --exclude lib/modules --exclude lib/firmware -C ${INITRD_DIR} .
-  tar -rf ${ARTIFACTS}/rootfs.tar  --exclude lib/modules --exclude lib/firmware -C ${INITRD_DIR} .
-  rm -f ${ARTIFACTS}/rootfs.tar.gz
-  gzip ${ARTIFACTS}/rootfs.tar
-}
-
-initrd() {
-  COMPRESS=lzma
-  [ "$DEV_BUILD" == "1" ] && COMPRESS="gzip -1"
-
-  pushd ${INITRD_DIR} >/dev/null
-
-  find | cpio -H newc -o | ${COMPRESS} > ${INITRD}
-
-  popd >/dev/null
-}
-
 cd $(dirname $0)/..
 
 BUILD=$(pwd)/build
-IMAGE_CACHE=${BUILD}/image-cache
-PREPOP_DIR=${IMAGE_CACHE}/var/lib/system-docker
 INITRD_DIR=${BUILD}/initrd
 ARTIFACTS=$(pwd)/dist/artifacts
 INITRD=${ARTIFACTS}/initrd
 
-mkdir -p ${ARTIFACTS} ${PREPOP_DIR}
+mkdir -p ${ARTIFACTS}
 
-rootfs
-initrd
+if [ "$COMPRESS" == "" ]; then
+    COMPRESS=lzma
+fi
+
+cd ${INITRD_DIR}
+
+echo Creating ${INITRD}
+find | cpio -H newc -o | ${COMPRESS} > ${INITRD}
+echo Done creating ${INITRD}