psot deletes all lines except the last ten lines in database_paths.log, if logfile is too big (1MB)

psot/main.py

@@ -66,6 +66,11 @@ def analyze(args):
 def cleanup(execution):
     if not execution['debug']:
         shutil.rmtree(execution['directory'])
+    
+    logfile = execution['install_path'] + '/database_paths.log'
+    if os.stat(logfile).st_size >= 131072:
+        cmd = "tmpfile=$(mktemp); tail {logfile} > $tmpfile; cat $tmpfile > {logfile}; rm -f $tmpfile;".format(logfile=logfile)
+        subprocess.run(cmd, shell=True)
 
 def generate_execution(config, args):
     execution = {}