thirdparty/google_appengine/appcfg.py
author Lennard de Rijk <ljvderijk@gmail.com>
Wed, 30 Sep 2009 21:26:50 +0200
changeset 2995 5931e6d6056f
parent 1278 a7766286a7be
permissions -rwxr-xr-x
Changed the working of the iterative_task decorator. The decorator now needs the logic for the model which it fetches. This is much nicer then "fetching" it using import. Also order has been removed since it has no use when iterating over all entities when key is involved. Fields to filter can now dynamically be set by the function that is wrapped. Note that it will merge the filter with the task_default kwarg and it will only use the start_key if their is no key present in the context. Also note that task_default gathers all kwargs. I tried to do it otherwise (with default kwargs) but I couldn't get it to work. Feel free to improve :).

#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Convenience wrapper for starting an appengine tool."""


import os
import sys

if not hasattr(sys, 'version_info'):
  sys.stderr.write('Very old versions of Python are not supported. Please '
                   'use version 2.5 or greater.\n')
  sys.exit(1)
version_tuple = tuple(sys.version_info[:2])
if version_tuple < (2, 4):
  sys.stderr.write('Error: Python %d.%d is not supported. Please use '
                   'version 2.5 or greater.\n' % version_tuple)
  sys.exit(1)
if version_tuple == (2, 4):
  sys.stderr.write('Warning: Python 2.4 is not supported; this program may '
                   'break. Please use version 2.5 or greater.\n')

DIR_PATH = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
SCRIPT_DIR = os.path.join(DIR_PATH, 'google', 'appengine', 'tools')

EXTRA_PATHS = [
  DIR_PATH,
  os.path.join(DIR_PATH, 'lib', 'antlr3'),
  os.path.join(DIR_PATH, 'lib', 'django'),
  os.path.join(DIR_PATH, 'lib', 'webob'),
  os.path.join(DIR_PATH, 'lib', 'yaml', 'lib'),
]

SCRIPT_EXCEPTIONS = {
  "dev_appserver.py" : "dev_appserver_main.py"
}

def run_file(file_path, globals_, script_dir=SCRIPT_DIR):
  """Execute the file at the specified path with the passed-in globals."""
  sys.path = EXTRA_PATHS + sys.path
  script_name = os.path.basename(file_path)
  script_name = SCRIPT_EXCEPTIONS.get(script_name, script_name)
  script_path = os.path.join(script_dir, script_name)
  execfile(script_path, globals_)

if __name__ == '__main__':
  run_file(__file__, globals())