thirdparty/google_appengine/bulkload_client.py
author Daniel Bentley <dbentley@google.com>
Wed, 01 Apr 2009 10:24:26 +0000
changeset 2048 236f37777764
parent 1278 a7766286a7be
permissions -rwxr-xr-x
A new model for seeding the database that makes it easier to seed many entities. new_seed_many is a function that seeds in a different way. Instead of using redirects, it figures out what the high-water mark of seeding is and proceeds from there. This is obviously a half-way step. I've talked about it with Sverre; I think I've mentioned it to others. If we like it, I volunteer to convert everything to this model (I think there will be savings and simplification when we're all the way). If we don't like it, I'll back out this code. But I'll also be sad, because this makes it a lot easier to add many entities (which I care about because I'm trying to fix list view for that many entities). Patch by: Dan Bentley

#!/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())