Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/sdb/db/manager/__init__.py

+# Copyright (c) 2006,2007,2008 Mitch Garnaat http://garnaat.org/
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish, dis-
+# tribute, sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject to the fol-
+# lowing conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+import boto
+
+
+def get_manager(cls):
+    """
+    Returns the appropriate Manager class for a given Model class.  It
+    does this by looking in the boto config for a section like this::
+
+        [DB]
+        db_type = SimpleDB
+        db_user = <aws access key id>
+        db_passwd = <aws secret access key>
+        db_name = my_domain
+        [DB_TestBasic]
+        db_type = SimpleDB
+        db_user = <another aws access key id>
+        db_passwd = <another aws secret access key>
+        db_name = basic_domain
+        db_port = 1111
+
+    The values in the DB section are "generic values" that will be used
+    if nothing more specific is found.  You can also create a section for
+    a specific Model class that gives the db info for that class.
+    In the example above, TestBasic is a Model subclass.
+    """
+    db_user = boto.config.get('DB', 'db_user', None)
+    db_passwd = boto.config.get('DB', 'db_passwd', None)
+    db_type = boto.config.get('DB', 'db_type', 'SimpleDB')
+    db_name = boto.config.get('DB', 'db_name', None)
+    db_table = boto.config.get('DB', 'db_table', None)
+    db_host = boto.config.get('DB', 'db_host', "sdb.amazonaws.com")
+    db_port = boto.config.getint('DB', 'db_port', 443)
+    enable_ssl = boto.config.getbool('DB', 'enable_ssl', True)
+    sql_dir = boto.config.get('DB', 'sql_dir', None)
+    debug = boto.config.getint('DB', 'debug', 0)
+    # first see if there is a fully qualified section name in the Boto config
+    module_name = cls.__module__.replace('.', '_')
+    db_section = 'DB_' + module_name + '_' + cls.__name__
+    if not boto.config.has_section(db_section):
+        db_section = 'DB_' + cls.__name__
+    if boto.config.has_section(db_section):
+        db_user = boto.config.get(db_section, 'db_user', db_user)
+        db_passwd = boto.config.get(db_section, 'db_passwd', db_passwd)
+        db_type = boto.config.get(db_section, 'db_type', db_type)
+        db_name = boto.config.get(db_section, 'db_name', db_name)
+        db_table = boto.config.get(db_section, 'db_table', db_table)
+        db_host = boto.config.get(db_section, 'db_host', db_host)
+        db_port = boto.config.getint(db_section, 'db_port', db_port)
+        enable_ssl = boto.config.getint(db_section, 'enable_ssl', enable_ssl)
+        debug = boto.config.getint(db_section, 'debug', debug)
+    elif hasattr(cls, "_db_name") and cls._db_name is not None:
+        # More specific then the generic DB config is any _db_name class property
+        db_name = cls._db_name
+    elif hasattr(cls.__bases__[0], "_manager"):
+        return cls.__bases__[0]._manager
+    if db_type == 'SimpleDB':
+        from sdbmanager import SDBManager
+        return SDBManager(cls, db_name, db_user, db_passwd,
+                          db_host, db_port, db_table, sql_dir, enable_ssl)
+    elif db_type == 'XML':
+        from xmlmanager import XMLManager
+        return XMLManager(cls, db_name, db_user, db_passwd,
+                          db_host, db_port, db_table, sql_dir, enable_ssl)
+    else:
+        raise ValueError('Unknown db_type: %s' % db_type)