Remove old log files so they don't accumulate on try bots.

webkit/tools/layout_tests/layout_package/http_server.py

 #!/bin/env python
 # Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """A class to help start/stop the lighttpd server used by layout tests."""
 
 
 import logging
 import optparse
 import os
 import platform_utils
 import subprocess
 import sys
 import tempfile
 import time
 import urllib
 
 import google.path_utils
 
 # This will be a native path to the directory this file resides in.
 # It can either be relative or absolute depending how it's executed.
 THISDIR = os.path.dirname(os.path.abspath(__file__))
 
 def PathFromBase(*pathies):
   return google.path_utils.FindUpward(THISDIR, *pathies)
 
+def RemoveLogFiles(folder, starts_with):
+  files = os.listdir(folder)
+  for file in files:
+    if file.startswith(starts_with) :
+      full_path = os.path.join(folder, file)
+      os.remove(full_path)
+
 class HttpdNotStarted(Exception):
   pass
 
 class Lighttpd:
   # Webkit tests
   try:
     _webkit_tests = PathFromBase('webkit', 'data', 'layout_tests',
                                  'LayoutTests', 'http', 'tests')
   except google.path_utils.PathNotFound:
     # If webkit/data/layout_tests/LayoutTests/http/tests does not exist, assume
@@ skipping 59 matching lines @@
       raise 'Lighttpd already running'
 
     base_conf_file = os.path.join(THISDIR, 'lighttpd.conf')
     out_conf_file = os.path.join(self._output_dir, 'lighttpd.conf')
     time_str = time.strftime("%d%b%Y-%H%M%S")
     access_file_name = "access.log-" + time_str + ".txt"
     access_log = os.path.join(self._output_dir, access_file_name)
     log_file_name = "error.log-" + time_str + ".txt"
     error_log = os.path.join(self._output_dir, log_file_name)
 
+    # Remove old log files. We only need to keep the last ones.
+    RemoveLogFiles(self._output_dir, "access.log-")
+    RemoveLogFiles(self._output_dir, "error.log-")
+
     # Write out the config
     f = file(base_conf_file, 'rb')
     base_conf = f.read()
     f.close()
 
     f = file(out_conf_file, 'wb')
     f.write(base_conf)
 
     # Write out our cgi handlers.  Run perl through env so that it processes
     # the #! line and runs perl with the proper command line arguments.
@@ skipping 146 matching lines @@
       # Specifying port but no root does not seem meaningful.
       raise 'Specifying port requires also a root.'
     httpd = Lighttpd(tempfile.gettempdir(),
                      port=options.port,
                      root=options.root,
                      register_cygwin=options.register_cygwin)
     if 'start' == options.server:
       httpd.Start()
     else:
       httpd.Stop(force=True)