Save old version for OTA and Webflash

resources/old_manifest.py

@@ -0,0 +1,20 @@
+import re, json, argparse
+
+parser = argparse.ArgumentParser()
+
+parser.add_argument('version', type=str)
+args = parser.parse_args()
+
+with open('ota/old/manifest.json', 'r+') as json_file:
+    data = json.load(json_file)
+    data[str(int((float(args.version)*100)+0.1))] = args.version
+    data2 = sorted(data.items(), reverse=True)
+    sorted_dict = {}
+    k = 6
+    for key, value in data2:
+        if k > 0:
+            sorted_dict[key] = value
+            k = k - 1
+    json_file.seek(0)
+    json.dump(sorted_dict, json_file, indent=4)
+    json_file.truncate()