Revert 235983 "Adding the main function and remaining pieces."

trunk/src/tools/cr/main.py

Index: trunk/src/tools/cr/main.py
===================================================================
--- trunk/src/tools/cr/main.py	(revision 235987)
+++ trunk/src/tools/cr/main.py	(working copy)
@@ -1,94 +0,0 @@
-# Copyright 2013 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.
-
-"""Chromium cr tool main module.
-
-Holds the main function and all it's support code.
-"""
-
-import os
-import sys
-import cr
-import cr.auto.user
-import cr.autocomplete
-import cr.loader
-
-_CONTACT = 'iancottrell@chromium.org'
-
-
-def Main():
-  """Chromium cr tool main function.
-
-  This is the main entry point of the cr tool, it finds and loads all the
-  plugins, creates the context and then activates and runs the specified
-  command.
-  """
-
-  # Add the users plugin dir to the cr.auto.user package scan
-  user_path = os.path.expanduser(os.path.join('~', '.config', 'cr'))
-  cr.auto.user.__path__.append(user_path)
-
-  cr.loader.Scan()
-
-  # Build the command context
-  context = cr.Context(
-      description='The chrome dev build tool.',
-      epilog='Contact ' + _CONTACT + ' if you have issues with this tool.',
-  )
-  # Install the sub-commands
-  for command in cr.Command.Plugins():
-    context.AddSubParser(command)
-
-  # test for the special autocomplete command
-  if context.autocompleting:
-    # After plugins are loaded so pylint: disable=g-import-not-at-top
-    cr.autocomplete.Complete(context)
-    return
-  # Speculative argument processing to add config specific args
-  context.ParseArgs(True)
-  cr.plugin.Activate(context)
-  # At this point we should know what command we are going to use
-  command = cr.Command.GetActivePlugin(context)
-  # Do some early processing, in case it changes the build dir
-  if command:
-    command.EarlyArgProcessing(context)
-  # Update the activated set again, in case the early processing changed it
-  cr.plugin.Activate(context)
-  # Load the build specific configuration
-  found_build_dir = cr.base.client.LoadConfig(context)
-  # Final processing or arguments
-  context.ParseArgs()
-  cr.plugin.Activate(context)
-  # If we did not get a command before, it might have been fixed.
-  if command is None:
-    command = cr.Command.GetActivePlugin(context)
-  # If the verbosity level is 3 or greater, then print the environment here
-  if context.verbose >= 3:
-    context.DumpValues(context.verbose > 3)
-  if command is None:
-    print context.Substitute('No command specified.')
-    exit(1)
-  if command.requires_build_dir:
-    if not found_build_dir:
-      if not context.Find('CR_OUT_FULL'):
-        print context.Substitute(
-            'No build directory specified. Please use cr init to make one.')
-      else:
-        print context.Substitute(
-            'Build {CR_BUILD_DIR} not a valid build directory')
-      exit(1)
-    if context.Find('CR_VERSION') != cr.base.client.VERSION:
-      print context.Substitute(
-          'Build {CR_BUILD_DIR} is for the wrong version of cr')
-      print 'Please run cr init to reset it'
-      exit(1)
-    cr.Platform.Prepare(context)
-  if context.verbose >= 1:
-    print context.Substitute(
-        'Running cr ' + command.name + ' for {CR_BUILD_DIR}')
-  # Invoke the given command
-  command.Run(context)
-
-if __name__ == '__main__':
-  sys.exit(Main())