Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/ec2/__init__.py

+# Copyright (c) 2006-2008 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.
+#
+"""
+This module provides an interface to the Elastic Compute Cloud (EC2)
+service from AWS.
+"""
+from boto.ec2.connection import EC2Connection
+
+
+def regions(**kw_params):
+    """
+    Get all available regions for the EC2 service.
+    You may pass any of the arguments accepted by the EC2Connection
+    object's constructor as keyword arguments and they will be
+    passed along to the EC2Connection object.
+
+    :rtype: list
+    :return: A list of :class:`boto.ec2.regioninfo.RegionInfo`
+    """
+    c = EC2Connection(**kw_params)
+    return c.get_all_regions()
+
+
+def connect_to_region(region_name, **kw_params):
+    """
+    Given a valid region name, return a
+    :class:`boto.ec2.connection.EC2Connection`.
+    Any additional parameters after the region_name are passed on to
+    the connect method of the region object.
+
+    :type: str
+    :param region_name: The name of the region to connect to.
+
+    :rtype: :class:`boto.ec2.connection.EC2Connection` or ``None``
+    :return: A connection to the given region, or None if an invalid region
+             name is given
+    """
+    for region in regions(**kw_params):
+        if region.name == region_name:
+            return region.connect(**kw_params)
+    return None
+
+
+def get_region(region_name, **kw_params):
+    """
+    Find and return a :class:`boto.ec2.regioninfo.RegionInfo` object
+    given a region name.
+
+    :type: str
+    :param: The name of the region.
+
+    :rtype: :class:`boto.ec2.regioninfo.RegionInfo`
+    :return: The RegionInfo object for the given region or None if
+             an invalid region name is provided.
+    """
+    for region in regions(**kw_params):
+        if region.name == region_name:
+            return region
+    return None