Support multiple chroots

src/scripts/autotest_lib.sh

Index: src/scripts/autotest_lib.sh
diff --git a/src/scripts/autotest_lib.sh b/src/scripts/autotest_lib.sh
index ac7be63156c9920e73ce5459c171bb2c80056114..b640a9ea70f422a9e8c8746aa428806ceb953626 100644
--- a/src/scripts/autotest_lib.sh
+++ b/src/scripts/autotest_lib.sh
@@ -8,11 +8,12 @@
 # the given source directory.
 # args:
 #   $1 - original source directory
+#   $2 - target directory
 function update_chroot_autotest() {
   local original=$1
-  echo "Updating chroot Autotest from ${original}..."
-  local autotest_dir="${DEFAULT_CHROOT_DIR}/usr/local/autotest"
-  sudo mkdir -p "${autotest_dir}"
-  sudo chmod 777 "${autotest_dir}"
-  cp -fpru ${original}/{client,conmux,server,tko,utils,global_config.ini,shadow_config.ini} ${autotest_dir}
+  local target=$2
+  echo "Updating chroot Autotest from ${original} to ${target}..."
+  sudo mkdir -p "${target}"
+  sudo chmod 777 "${target}"
+  cp -fpru ${original}/{client,conmux,server,tko,utils,global_config.ini,shadow_config.ini} ${target}
 }