Add board option to au test harness so that this works for others without a default board.

bin/loman.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This module allows adding and deleting of projects to the local manifest."""
 
 import sys
 import optparse
 import os
 import xml.etree.ElementTree as ElementTree
 
-from cros_build_lib import Die
-
-
-def _FindRepoDir():
-  cwd = os.getcwd()
-  while cwd != '/':
-    repo_dir = os.path.join(cwd, '.repo')
-    if os.path.isdir(repo_dir):
-      return repo_dir
-    cwd = os.path.dirname(cwd)
-  return None
+from cros_build_lib import Die, FindRepoDir
 
 
 def _ReadManifest(manifest, err_not_found=False):
   if os.path.isfile(manifest):
     ptree = LocalManifest(open(manifest).read())
   elif err_not_found:
     Die('Manifest file, %s, not found' % manifest)
   else:
     ptree = LocalManifest()
   ptree.Parse()
@@ skipping 54 matching lines @@
     for project in self._root.findall('project'):
       if project.attrib['name'] == name:
         return project
     return None
 
   def ToString(self):
     return ElementTree.tostring(self._root, encoding='UTF-8')
 
 
 def main(argv):
-  repo_dir = _FindRepoDir()
+  repo_dir = FindRepoDir()
   if not repo_dir:
     Die("Unable to find repo dir.")
 
   usage = 'usage: %prog add [options] <name>'
   parser = optparse.OptionParser(usage=usage)
   parser.add_option('-w', '--workon', action='store_true', dest='workon',
                     default=False, help='Is this a workon package?')
   parser.add_option('-f', '--file', dest='local_manifest',
                     default='%s/local_manifest.xml' % repo_dir,
                     help='Non-default manifest file to read.')
@@ skipping 20 matching lines @@
     Die('name "%s" already exits with a different path.' % name)
 
   try:
     print >> open(options.local_manifest, 'w'), local_tree.ToString()
   except Exception, e:
     Die('Error writing to manifest: %s' % e)
 
 
 if __name__ == '__main__':
   main(sys.argv)