Add an option to disable the automatic check for updates. Enabled by default. Grav updates still show up when pressing the 'Check for updates' button

admin.yaml

@@ -9,6 +9,7 @@ warnings:
   delete_page: true
 edit_mode: normal
 show_beta_msg: true
+enable_auto_updates_check: true
 popularity:
   enabled: true
   ignore: ['/test*','/modular']

blueprints.yaml

@@ -69,6 +69,18 @@ form:
         type: bool
       help: Show the beta warning message on the dashboard
 
+    enable_auto_updates_check:
+      type: toggle
+      label: Automatically check for updates
+      highlight: 1
+      default: 1
+      options:
+        1: Enabled
+        0: Disabled
+      validate:
+        type: bool
+      help: Shows an informative message, in the admin panel, when an update is available.
+
     session.timeout:
       type: text
       size: small

themes/grav/js/admin-all.js

@@ -402,7 +402,9 @@ $(function () {
         });
     };
 
-    GPMRefresh();
+    if (GravAdmin.config.enable_auto_updates_check === '1') {
+        GPMRefresh();
+    }
 
     function reIndex (collection) {
         var holder = collection.find('[data-collection-holder]'),

themes/grav/templates/partials/javascript-config.html.twig

@@ -1,7 +1,8 @@
 <script type="text/javascript">
-	window.GravAdmin = window.GravAdmin || {};
-	window.GravAdmin.config = {
-		base_url_relative: '{{ base_url_relative }}',
-        param_sep: '{{ config.system.param_sep }}'
-	};
+    window.GravAdmin = window.GravAdmin || {};
+    window.GravAdmin.config = {
+        base_url_relative: '{{ base_url_relative }}',
+        param_sep: '{{ config.system.param_sep }}',
+        enable_auto_updates_check: '{{ config.plugins.admin.enable_auto_updates_check }}'
+    };
 </script>