bundles/octoprint: add update check

bundles/octoprint/files/check_octoprint_update

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+from requests import get
+from sys import exit
+
+api_key = '${api_key}'
+
+try:
+    json = get('http://[::1]:22030/plugin/softwareupdate/check', headers={'X-Api-Key': api_key}).json()
+except Exception as e:
+    print(repr(e))
+    exit(3)
+
+updates = set()
+errors = set()
+
+for identifier, info in json['information'].items():
+    if info['updateAvailable']:
+        updates.add(info['displayName'])
+
+if not json['environment']['supported']:
+    errors.add('OctoPrint runs in an unsupported environment!')
+
+if not json['storage']['sufficient']:
+    errors.add('OctoPrint reports insufficient storage!')
+
+
+for error in sorted(errors):
+    print(error)
+
+if len(updates) > 0:
+    print('Updates available: {}'.format(', '.join(sorted(updates))))
+
+
+if len(errors) > 0:
+    exit(2)
+elif len(updates) > 0:
+    exit(1)
+else:
+    print('OK')
+    exit(0)