refactor(EntryPoint): updated count_free_space to use statvfs

Author: mezantrop

mac_cleanup/main.py

@@ -1,11 +1,12 @@
+from os import statvfs
 from pathlib import Path
 
 from mac_cleanup.config import Config
 from mac_cleanup.console import console, print_panel
 from mac_cleanup.core import _Collector
 from mac_cleanup.error_handling import catch_exception
 from mac_cleanup.parser import args
-from mac_cleanup.utils import bytes_to_human, cmd
+from mac_cleanup.utils import bytes_to_human
 
 
 class EntryPoint:
@@ -16,7 +17,8 @@ class EntryPoint:
     def count_free_space() -> float:
         """Get current free space."""
 
-        return float(cmd("df / | tail -1 | awk '{print $4}'"))
+        s_fs = statvfs("/")
+        return float(s_fs.f_bavail * s_fs.f_frsize / s_fs.f_bsize)
 
     def cleanup(self) -> None:
         """Launch cleanup and print results."""