Make host.env location configurable and available via env

Change-Id: I3065bed6bbb8c36a299ce975b9ca8c8500030d40

.ci/Jenkinsfile

@@ -36,6 +36,7 @@ pipeline {
 			environment {
 				DOCKER_BASE_IMAGE = "debian:bullseye"
 				DEPENDENCY_PYTHON = "python@3.8.2"
+				YASHCHIKI_HOST_ENV_PATH = "${WORKSPACE}/host.env"
 				YASHCHIKI_META_DIR = "${WORKSPACE}/meta"
 				YASHCHIKI_RECIPE_PATH = "${WORKSPACE}/visionary_recipe.def"
 				YASHCHIKI_CACHES_ROOT = "${HOME}"

.ci/Jenkinsfile_asic

@@ -38,6 +38,7 @@ pipeline {
 				DOCKER_BASE_IMAGE = "centos:7"
 				// versions from system packages
 				DEPENDENCY_PYTHON = "python@3.8.3"
+				YASHCHIKI_HOST_ENV_PATH = "${WORKSPACE}/host.env"
 				YASHCHIKI_META_DIR = "${WORKSPACE}/meta"
 				YASHCHIKI_RECIPE_PATH = "${WORKSPACE}/asic_recipe.def"
 				YASHCHIKI_CACHES_ROOT = "${HOME}"

.ci/commons.sh

@@ -8,7 +8,7 @@ SOURCE_DIR="$(dirname "$(readlink -m "${BASH_SOURCE[0]}")")"
 HOST_ENV_FILE_INSIDE="/tmp/spack/host.env"
 if [ -n "${WORKSPACE:-}" ]; then
     # we are not in container
-    HOST_ENV_FILE="${WORKSPACE}/host.env"
+    HOST_ENV_FILE="${YASHCHIKI_HOST_ENV_PATH}"
 else
     HOST_ENV_FILE="${HOST_ENV_FILE_INSIDE}"
 fi