Feature/sap hana client jar clean

buildpack/core/runtime.py

@@ -57,6 +57,41 @@ def is_version_maintained(version):
     return False
 
 
+_SAP_HANA_CLIENT_DEPENDENCY = "sap.hana.client"
+
+
+def _is_sap_hana_client_enabled():
+    return bool(os.environ.get("SAP_HANA_CLIENT_ENABLED", "").strip())
+
+
+def stage_hana_client(buildpack_dir, build_dir, cache_dir):
+    if not _is_sap_hana_client_enabled():
+        return
+
+    try:
+        dest = os.path.join(build_dir, "model", "lib", "userlib")
+        util.mkdir_p(dest)
+        dep = util.get_dependency(_SAP_HANA_CLIENT_DEPENDENCY, buildpack_dir=buildpack_dir)
+        jar_name = "ngdbc-{}.jar".format(dep["version"])
+        util.resolve_dependency(
+            _SAP_HANA_CLIENT_DEPENDENCY,
+            dest,
+            buildpack_dir=buildpack_dir,
+            cache_dir=cache_dir,
+            unpack=False,
+        )
+        logging.info(
+            "SAP HANA client JAR [%s] staged to [%s]",
+            jar_name,
+            dest,
+        )
+    except Exception:
+        logging.warning(
+            "Failed to stage SAP HANA client JAR, continuing deployment...",
+            exc_info=True,
+        )
+
+
 def stage(buildpack_dir, build_path, cache_path):
     logging.debug("Creating directory structure for Mendix runtime...")
     for name in ["runtimes", "log", "database", "data", "bin"]:

buildpack/stage.py

@@ -217,6 +217,7 @@ def cleanup_dependency_cache(cached_dir, dependency_list):
     metering.stage(BUILDPACK_DIR, BUILD_DIR, CACHE_DIR)
     database.stage(BUILDPACK_DIR, BUILD_DIR)
     runtime.stage(BUILDPACK_DIR, BUILD_DIR, CACHE_DIR)
+    runtime.stage_hana_client(BUILDPACK_DIR, BUILD_DIR, CACHE_DIR)
     logs.stage(BUILDPACK_DIR, BUILD_DIR, CACHE_DIR)
     nginx.stage(BUILDPACK_DIR, BUILD_DIR, CACHE_DIR)
     logging.info("Mendix Cloud Foundry Buildpack staging completed")

dependencies.yml

@@ -88,6 +88,11 @@ dependencies:
     commit: 5fed98f8
     fs: cflinuxfs4
     version: 3.2.2
+  sap:
+    hana:
+      client:
+        artifact: "sap-hana-client/ngdbc-{{ version }}.jar"
+        version: "2.29.11"
   telegraf:
     agent:
       artifact: telegraf/telegraf-{{ version }}_linux_amd64.tar.gz