utils: fix get_image_info regression

Fix image size, permissions and creation time.
Improve error report related to these parameters now showing the
exact cause of the problem if any occurred during the definition
of image size, file permissions or image creation time values.

src/live/ogOperations.py

@@ -10,7 +10,6 @@ import datetime
 import hashlib
 import logging
 import os
-import stat
 import subprocess
 import shlex
 import shutil

src/utils/image.py

@@ -9,6 +9,7 @@
 import ipaddress
 import logging
 import os
+import stat
 import subprocess
 import shlex
 import shutil
@@ -131,11 +132,11 @@ def get_image_info(image_path):
 
     try:
         st = os.stat(image_path)
-        self.size = st.st_size
-        self.perms = st.st_mode & (stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
-        self.mtime = int(st.st_mtime)
-    except:
-        logging.info(f'cannot retrieve stats from {image_path}')
+        image_info.size = st.st_size
+        image_info.perms = st.st_mode & (stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
+        image_info.mtime = int(st.st_mtime)
+    except Exception as e:
+        logging.info(f'cannot retrieve stats from {image_path}: {e}')
 
     return image_info