python/old_dev_appserver.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2007 Google Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17
  18
  19
  20 """Convenience wrapper for starting an appengine tool."""
  21
  22
  23 import os
  24 import re
  25 import sys
  26
  27
  28 if not hasattr(sys, 'version_info'):
  29   sys.stderr.write('Very old versions of Python are not supported. Please '
  30                    'use version 2.5 or greater.\n')
  31   sys.exit(1)
  32 version_tuple = tuple(sys.version_info[:2])
  33 if version_tuple < (2, 5):
  34   sys.stderr.write('Error: Python %d.%d is not supported. Please use '
  35                    'version 2.5 or greater.\n' % version_tuple)
  36   sys.exit(1)
  37
  38
  39 def get_dir_path(sibling):
  40   """Get a path to the directory of this script.
  41
  42   By default, the canonical path (symlinks resolved) will be returned. In some
  43   environments the canonical directory is not sufficient because different
  44   parts of the SDK are referenced by symlinks, including this very module's
  45   file. In this case, the non-canonical path to this file's directory will be
  46   returned (i.e., the directory where the symlink lives, not the directory
  47   where it points).
  48
  49   Args:
  50     sibling: Relative path to a sibiling of this module file. Choose a sibling
  51     that is potentially symlinked into the parent directory.
  52
  53   Returns:
  54     A directory name.
  55
  56   Raises:
  57     ValueError: If no proper path could be determined.
  58   """
  59   if 'GAE_SDK_ROOT' in os.environ:
  60     gae_sdk_root = os.path.abspath(os.environ['GAE_SDK_ROOT'])
  61
  62
  63
  64     os.environ['GAE_SDK_ROOT'] = gae_sdk_root
  65     for dir_path in [gae_sdk_root,
  66                      os.path.join(gae_sdk_root, 'google_appengine')]:
  67       if os.path.exists(os.path.join(dir_path, sibling)):
  68         return dir_path
  69     raise ValueError('GAE_SDK_ROOT %r does not refer to a valid SDK '
  70                      'directory' % gae_sdk_root)
  71   else:
  72     py_file = __file__.replace('.pyc', '.py')
  73     dir_paths = [os.path.abspath(os.path.dirname(os.path.realpath(py_file))),
  74                  os.path.abspath(os.path.dirname(py_file))]
  75     for dir_path in dir_paths:
  76       sibling_path = os.path.join(dir_path, sibling)
  77       if os.path.exists(sibling_path):
  78         return dir_path
  79     raise ValueError('Could not determine SDK root; please set GAE_SDK_ROOT '
  80                      'environment variable.')
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90 DIR_PATH = get_dir_path(os.path.join('lib', 'ipaddr'))
  91 SCRIPT_DIR = os.path.join(DIR_PATH, 'google', 'appengine', 'tools')
  92 GOOGLE_SQL_DIR = os.path.join(
  93     DIR_PATH, 'google', 'storage', 'speckle', 'python', 'tool')
  94
  95 EXTRA_PATHS = [
  96   DIR_PATH,
  97   os.path.join(DIR_PATH, 'lib', 'antlr3'),
  98   os.path.join(DIR_PATH, 'lib', 'django-0.96'),
  99   os.path.join(DIR_PATH, 'lib', 'fancy_urllib'),
 100   os.path.join(DIR_PATH, 'lib', 'ipaddr'),
 101   os.path.join(DIR_PATH, 'lib', 'jinja2-2.6'),
 102   os.path.join(DIR_PATH, 'lib', 'protorpc'),
 103   os.path.join(DIR_PATH, 'lib', 'PyAMF'),
 104   os.path.join(DIR_PATH, 'lib', 'markupsafe'),
 105   os.path.join(DIR_PATH, 'lib', 'webob_0_9'),
 106   os.path.join(DIR_PATH, 'lib', 'webapp2-2.5.2'),
 107   os.path.join(DIR_PATH, 'lib', 'yaml', 'lib'),
 108   os.path.join(DIR_PATH, 'lib', 'simplejson'),
 109 ]
 110
 111 API_SERVER_EXTRA_PATHS = [
 112   os.path.join(DIR_PATH, 'lib', 'argparse'),
 113 ]
 114 API_SERVER_EXTRA_PATH_SCRIPTS = 'api_server'
 115
 116
 117 OAUTH_CLIENT_EXTRA_PATHS = [
 118   os.path.join(DIR_PATH, 'lib', 'google-api-python-client'),
 119   os.path.join(DIR_PATH, 'lib', 'httplib2'),
 120   os.path.join(DIR_PATH, 'lib', 'python-gflags'),
 121 ]
 122
 123 OAUTH_CLIENT_EXTRA_PATH_SCRIPTS = '(appcfg|bulkloader)'
 124
 125
 126 GOOGLE_SQL_EXTRA_PATHS = OAUTH_CLIENT_EXTRA_PATHS + [
 127   os.path.join(DIR_PATH, 'lib', 'enum'),
 128   os.path.join(DIR_PATH, 'lib', 'grizzled'),
 129   os.path.join(DIR_PATH, 'lib', 'oauth2'),
 130   os.path.join(DIR_PATH, 'lib', 'prettytable'),
 131   os.path.join(DIR_PATH, 'lib', 'sqlcmd'),
 132 ]
 133
 134 GOOGLE_SQL_EXTRA_PATH_SCRIPTS = 'google_sql'
 135
 136
 137
 138 SCRIPT_EXCEPTIONS = {
 139   "old_dev_appserver.py" : "dev_appserver_main.py"
 140 }
 141
 142 SCRIPT_DIR_EXCEPTIONS = {
 143   'google_sql.py': GOOGLE_SQL_DIR,
 144 }
 145
 146
 147 def fix_sys_path(extra_extra_paths=()):
 148   """Fix the sys.path to include our extra paths."""
 149   extra_paths = EXTRA_PATHS[:]
 150   extra_paths.extend(extra_extra_paths)
 151   sys.path = extra_paths + sys.path
 152
 153
 154 def run_file(file_path, globals_, script_dir=SCRIPT_DIR):
 155   """Execute the file at the specified path with the passed-in globals."""
 156   script_name = os.path.basename(file_path)
 157
 158   if re.match(OAUTH_CLIENT_EXTRA_PATH_SCRIPTS, script_name):
 159     extra_extra_paths = OAUTH_CLIENT_EXTRA_PATHS
 160   elif re.match(GOOGLE_SQL_EXTRA_PATH_SCRIPTS, script_name):
 161     extra_extra_paths = GOOGLE_SQL_EXTRA_PATHS
 162   elif re.match(API_SERVER_EXTRA_PATH_SCRIPTS, script_name):
 163     extra_extra_paths = API_SERVER_EXTRA_PATHS
 164   else:
 165     extra_extra_paths = []
 166   fix_sys_path(extra_extra_paths)
 167
 168
 169
 170
 171
 172
 173
 174   if 'google' in sys.modules:
 175     del sys.modules['google']
 176
 177   script_name = SCRIPT_EXCEPTIONS.get(script_name, script_name)
 178   script_dir = SCRIPT_DIR_EXCEPTIONS.get(script_name, script_dir)
 179   script_path = os.path.join(script_dir, script_name)
 180   execfile(script_path, globals_)
 181
 182
 183 if __name__ == '__main__':
 184   run_file(__file__, globals())