cc-4227: changed upgrade method. added test stubs for it

python_apps/media-monitor2/upgrade2dot2.py

@@ -0,0 +1,28 @@
+import os
+from configobj import ConfigObj
+import traceback
+
+upgrades_config = {
+    '/etc/airtime/media-monitor.cfg' : '../media-monitor/media-monitor.cfg',
+    '/etc/airtime/api_client.cfg' : '../api_clients/api_client.cfg',
+}
+
+def upgrade(upgrade_data):
+    """
+    Must be ran as sudo. will do upgrade of configuration files by filling in
+    missing values according to upgrade_data
+    """
+    for source, destination in upgrade_data:
+        if not os.path.exists(source):
+            print("Cannot upgrade '%s'. Skipping this file" % source)
+            continue
+        try:
+            cfg_source, cfg_dest = ConfigObj(source), ConfigObj(destination)
+            for key, val in cfg_source:
+                if key not in cfg_dest: cfg_dest[key] = val
+            cfg_dest.write()
+        except Exception:
+            print("Error upgrading")
+            print( traceback.format_exc() )
+
+if __name__ == "__main__": upgrade(upgrades_config)