fix: Allow empty temporary meta directory

Change-Id: Ibcbee09ffde55f21716465921f79848c5ae8eca1

bin/yashchiki

@@ -254,6 +254,7 @@ with tempfile.TemporaryDirectory(prefix="spack-", dir=env["TMPDIR"]) \
         meta_dir = args.meta_dir
     else:
         meta_dir = temporary_directory.joinpath("meta")
+        meta_dir.mkdir(parents=True)
     env = env | {"YASHCHIKI_META_DIR": meta_dir}
 
     # host environment storage filename defaults to temporary file

share/yashchiki/styles/asic/create_recipe.sh

@@ -39,7 +39,7 @@ From: ${DOCKER_BASE_IMAGE}
     rsync -av "${ROOT_DIR}"/lib/yashchiki/*.awk "\${SINGULARITY_ROOTFS}/${SPACK_INSTALL_SCRIPTS}"
     rsync -av "${ROOT_DIR}"/share/yashchiki/patches "\${SINGULARITY_ROOTFS}/${SPACK_INSTALL_SCRIPTS}"
     mkdir -p "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
-    rsync -av "${META_DIR_OUTSIDE}"/* "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
+    rsync -av "${META_DIR_OUTSIDE}/" "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
     # init scripts for user convenience
     mkdir -p "\${SINGULARITY_ROOTFS}/opt/init"
     rsync -av "${ROOT_DIR}"/share/yashchiki/misc-files/init/*.sh "\${SINGULARITY_ROOTFS}/opt/init"

share/yashchiki/styles/visionary/create_recipe.sh

@@ -44,7 +44,7 @@ From: ${DOCKER_BASE_IMAGE}
     rsync -av "${ROOT_DIR}"/lib/yashchiki/*.awk "\${SINGULARITY_ROOTFS}/${SPACK_INSTALL_SCRIPTS}"
     rsync -av "${ROOT_DIR}"/share/yashchiki/patches "\${SINGULARITY_ROOTFS}/${SPACK_INSTALL_SCRIPTS}"
     mkdir -p "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
-    rsync -av "${META_DIR_OUTSIDE}"/* "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
+    rsync -av "${META_DIR_OUTSIDE}/" "\${SINGULARITY_ROOTFS}/${META_DIR_INSIDE}"
     # init scripts for user convenience
     mkdir -p "\${SINGULARITY_ROOTFS}/opt/init"
     rsync -av "${ROOT_DIR}"/share/yashchiki/misc-files/init/*.sh "\${SINGULARITY_ROOTFS}/opt/init"