tamarin: add prepareEnvironment() method

resources/com/cadoles/tamarin/run-tamarin.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -e
+set -xe
 
 cp -r . /src
 
@@ -17,6 +17,7 @@ https_proxy=${https_proxy}
 EOF
 
 [ "${TAMARIN_FORCE_REBUILD}" == "true" ] && PACKAGE_ARGS="${PACKAGE_ARGS} --rebuild"
+[ "${TAMARIN_PREPARE_ONLY}" == "true" ] && PACKAGE_ARGS="${PACKAGE_ARGS} --prepare-only"
 [ ! -z "${TAMARIN_PACKAGE_ARCH}" ] && PACKAGE_ARGS="${PACKAGE_ARGS} -a ${TAMARIN_PACKAGE_ARCH}"
 [ ! -z "${TAMARIN_BASE_IMAGE}" ] && PACKAGE_ARGS="${PACKAGE_ARGS} -b ${TAMARIN_BASE_IMAGE}"
 [ ! -z "${TAMARIN_PROFILE}" ] && PACKAGE_ARGS="${PACKAGE_ARGS} -p ${TAMARIN_PROFILE}"
@@ -25,4 +26,6 @@ EOF
 
 DEST_DIR=${TAMARIN_DEST_DIR:-dist}
 mkdir -p ${DEST_DIR}
-cp -r /dist/* ./${DEST_DIR}
+for f in /dist/*; do
+    [ -e "$f" ] && cp "$f" ./${DEST_DIR}
+done