Warn if --gclientfile= specifies a with separators.

gclient.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Meta checkout manager supporting both Subversion and GIT."""
 # Files
 #   .gclient      : Current client configuration, written by 'config' command.
 #                   Format is a Python script defining 'solutions', a list whose
 #                   entries each are maps binding the strings "name" and "url"
@@ skipping 42 matching lines @@
 #       { "pattern": ".",
 #         "name": "gyp",
 #         "action":  ["python", "src/build/gyp_chromium"]},
 #     ]
 #
 # Pre-DEPS Hooks
 #   DEPS files may optionally contain a list named "pre_deps_hooks".  These are
 #   the same as normal hooks, except that they run before the DEPS are
 #   processed. Pre-DEPS run with "sync" and "revert" unless the --noprehooks
 #   flag is used.
-# 
+#
 # Specifying a target OS
 #   An optional key named "target_os" may be added to a gclient file to specify
 #   one or more additional operating systems that should be considered when
 #   processing the deps_os dict of a DEPS file.
 #
 #   Example:
 #     target_os = [ "android" ]
 #
 #   If the "target_os_only" key is also present and true, then *only* the
 #   operating systems listed in "target_os" will be used.
@@ skipping 1779 matching lines @@
 
   def parse_args(self, args=None, values=None):
     """Integrates standard options processing."""
     options, args = optparse.OptionParser.parse_args(self, args, values)
     levels = [logging.ERROR, logging.WARNING, logging.INFO, logging.DEBUG]
     logging.basicConfig(
         level=levels[min(options.verbose, len(levels) - 1)],
         format='%(module)s(%(lineno)d) %(funcName)s:%(message)s')
     if options.config_filename and options.spec:
       self.error('Cannot specifiy both --gclientfile and --spec')
+    if (options.config_filename and
+        options.config_filename != os.path.basename(options.config_filename)):
+      self.error('--gclientfile target must be a filename, not a path')
     if not options.config_filename:
       options.config_filename = self.gclientfile_default
     options.entries_filename = options.config_filename + '_entries'
     if options.jobs < 1:
       self.error('--jobs must be 1 or higher')
 
     # These hacks need to die.
     if not hasattr(options, 'revisions'):
       # GClient.RunOnDeps expects it even if not applicable.
       options.revisions = []
@@ skipping 43 matching lines @@
     raise
   except (gclient_utils.Error, subprocess2.CalledProcessError), e:
     print >> sys.stderr, 'Error: %s' % str(e)
     return 1
 
 
 if '__main__' == __name__:
   sys.exit(Main(sys.argv[1:]))
 
 # vim: ts=2:sw=2:tw=80:et: