starting to standardize the way packages are handled

tasks/pkgs/air.yml

@@ -1,7 +1,16 @@
 # vim: set filetype=yaml.ansible :
 ---
 - name: Set air configuration
+  when:
+    - __air_configured is undefined or
+      not __air_configured
   block:
+    - name: Set air_install_method
+      when:
+        - air_install_method is undefined
+      ansible.builtin.set_fact:
+        air_install_method: source
+
     - name: Set air version and url
       ansible.builtin.set_fact:
         air_version: "{{ air_version | default('latest') }}"
@@ -11,6 +20,19 @@
       ansible.builtin.set_fact:
         air_pkg: "{{ air_url }}@{{ air_version }}"
 
+    - name: Ensure air_install_method is valid
+      when:
+        - air_install_method is defined
+        - air_install_method not in air_install_methods
+      ansible.builtin.set_fact:
+        air_intall_method: air_install_methods[0]
+
+    - name: Complete air configuration
+      ansible.builtin.set_fact:
+        __air_configured: true
+
 - name: Append air to pkg_go
+  when:
+    - air_install_method == 'source'
   ansible.builtin.set_fact:
-    pkg_go: "{{ pkg_go + [air_install] }}"
+    pkg_go: "{{ pkg_go + [air_pkg] }}"