updated tasks so they are only run once

tasks/pkgs/sdbus_cpp_2.yml

@@ -1,4 +1,20 @@
-- name: Append to pkg list
-  ansible.builtin.set_fact:
-    pkg_sys: "{{ pkg_sys + sdbus_cpp_2.build_deps }}"
-    pkg_src: "{{ pkg_src + ['sdbus_cpp_2'] }}"
+# vim: set filetype=yaml.ansible :
+---
+- name: Add sdbus_cpp_2
+  when:
+    - sdbus_cpp_2_configured is undefined
+  block:
+    - name: Load sdbus-cpp-2 config
+      when:
+        - sdbus_cpp_2 is undefined
+      ansible.builtin.include_tasks:
+        file: config/sdbus_cpp_2.yml
+
+    - name: Append to pkg list
+      ansible.builtin.set_fact:
+        pkg_sys: "{{ pkg_sys + sdbus_cpp_2.build_deps }}"
+        pkg_src: "{{ pkg_src + ['sdbus_cpp_2'] }}"
+
+    - name: Set sdbus_cpp_2_configured
+      ansible.builtin.set_fact:
+        sdbus_cpp_2_configured: true