Add my helper scripts

helper_scripts/build_os.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = "" ]; then
+  echo "argument cannot be empty"
+  exit 1
+fi
+
+cd "$(dirname $0)"
+PARENT_DIR="$(pwd)"
+
+rm -fr "${1}_build" os161-ostree || true
+cp -r "${1}" "${1}_build"
+cd "${1}_build"
+
+./configure --ostree="${PARENT_DIR}/os161-ostree"
+
+TARGET_KERNEL=DUMBVM
+
+cd kern/conf
+./config $TARGET_KERNEL
+cd ../compile/$TARGET_KERNEL
+#-j`nproc` does not affect output of bmake
+bmake depend -j`nproc`
+bmake -j`nproc`
+bmake install
+cd ../../..
+
+bmake -j`nproc`
+bmake depend -j`nproc`
+bmake install
+
+cd ..
+cp -v sys161.conf os161-ostree/