live: report image size when creating image

add .size json field to report the real size of the image file.

src/live/ogOperations.py

@@ -478,6 +478,15 @@ class OgLiveOperations:
             logging.exception('Exception when running "image create" subprocess')
             raise ValueError('Error: Incorrect command value')
 
+        try:
+            stat = os.stat(image_path)
+            size = stat.st_size
+        except:
+            logging.info(f'cannot retrieve size from {image_path}')
+            size = 0
+
+        image_info.size = size
+
         self._write_md5_file(f'/opt/opengnsys/images/{name}.img')
 
         self._restartBrowser(self._url)

src/ogRest.py

@@ -206,6 +206,7 @@ class ogThread():
 		json_body.add_element('compressor', image_info.compressor)
 		json_body.add_element('filesystem', image_info.filesystem)
 		json_body.add_element('datasize', datasize)
+		json_body.add_element('size', image_info.size)
 
 		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
 		client.send(response.get())

src/utils/legacy.py

@@ -25,6 +25,7 @@ class ImageInfo:
     def __init__(self, filesystem=None, datasize=None):
         self.filesystem = filesystem
         self.datasize = datasize
+        self.size = 0
         self.clonator = 'PARTCLONE'
         self.compressor = 'LZOP'