Add Linux lighttpd for running LayoutTests on Linux.

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
@@ skipping 109 matching lines @@
     start_cmd = [ executable,
                   # Newly written config file
                   '-f', PathFromBase(self._output_dir, 'lighttpd.conf'),
                   # Where it can find its module dynamic libraries
                   '-m', module_path,
                   # Don't background
                   '-D' ]
 
     # Put the cygwin directory first in the path to find cygwin1.dll
     env = os.environ
-    env['PATH'] = '%s;%s' % (
-        PathFromBase('third_party', 'cygwin', 'bin'), env['PATH'])
+    if sys.platform in ('cygwin', 'win32'):
+      env['PATH'] = '%s;%s' % (
+          PathFromBase('third_party', 'cygwin', 'bin'), env['PATH'])
 
     logging.info('Starting http server')
     self._process = subprocess.Popen(start_cmd, env=env)
 
     # Ensure that the server is running on all the desired ports.
     for mapping in mappings:
       url = 'http%s://127.0.0.1:%d/' % ('sslcert' in mapping and 's' or '',
                                         mapping['port'])
       if not self._UrlIsAlive(url):
         raise HttpdNotStarted('Failed to start httpd on port %s' %
@@ skipping 61 matching lines @@
     print "Usage: %s --server {start|stop} [--apache2]" % sys.argv[0]
   else:
     if (options.root is None) != (options.port is None):
       raise 'Either port or root is missing (need both, or neither)'
     httpd = Lighttpd('c:/cygwin/tmp', port=options.port, root=options.root)
   if 'start' == options.server:
     httpd.Start()
   else:
     httpd.Stop(force=True)