force auto update of nodesource - allows upgrades

roles/nodejs/tasks/main.yml

@@ -41,13 +41,22 @@
 #      /etc/iiab/local_vars.yml -- then re-run this IIAB installer.
 #  when: nodejs_version_installed is defined and nodejs_version_installed.stdout != nodejs_version and nodejs_version_installed.stderr == ""
 
+# Forces < 12 or > 12 to be removed, ignored if file is absent
+- name: Remove /etc/apt/sources.list.d/nodesource.list if nodejs_version_installed.stdout is not {{ nodejs_version }}
+  file:
+    state: absent
+    path: /etc/apt/sources.list.d/nodesource.list
+  when: nodejs_version_installed is defined and nodejs_version_installed.stdout != nodejs_version and nodejs_version_installed.stdout != ""
+
 # BRUTAL but ensures consistency across OS's / distros like Raspbian Desktop & Ubermix that often include an older version of Node.js
+# Forces < 12 or > 12 to be uninstalled
 - name: ASK apt/yum/dnf TO REMOVE PRE-EXISTING Node.js {{ nodejs_version_installed.stdout }} (IF IT'S NOT {{ nodejs_version }})
   package:
     name: nodejs
     state: absent
   when: nodejs_version_installed is defined and nodejs_version_installed.stdout != nodejs_version and nodejs_version_installed.stdout != ""
 
+# Forces == 12
 - name: Warn if Node.js {{ nodejs_version}} already installed & might be updated
   debug:
     msg: "WARN: YOUR Node.js {{ nodejs_version }} MIGHT NOW BE UPDATED USING nodesource.com"
@@ -79,6 +88,7 @@
 # 19.04 Beta.  Comment it out for now, and manually run: "apt install npm" then
 # "npm install -g npm@latest" (all *SHOULD* be magically fixed by 2019-04-18 ?)
 
+# Forces update
 - name: Install latest Node.js {{ nodejs_version }} which includes /usr/bin/npm (debuntu)
   package:
   #   name: nodejs={{ nodejs_version }}