Added gsutil/gslib to depot_tools/third_party

third_party/gsutil/gslib/storage_uri_builder.py

Index: third_party/gsutil/gslib/storage_uri_builder.py
diff --git a/third_party/gsutil/gslib/storage_uri_builder.py b/third_party/gsutil/gslib/storage_uri_builder.py
new file mode 100644
index 0000000000000000000000000000000000000000..576978fa7aa696c83b4c48392ec7d88029959a3a
--- /dev/null
+++ b/third_party/gsutil/gslib/storage_uri_builder.py
@@ -0,0 +1,56 @@
+# Copyright 2012 Google Inc. All Rights Reserved.
+#
+# 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.
+
+"""
+Class that holds state (bucket_storage_uri_class and debug) needed for
+instantiating StorageUri objects. The StorageUri func defined in this class
+uses that state plus gsutil default flag values to instantiate this frequently
+constructed object with just one param for most cases.
+"""
+
+import boto
+from gslib.exception import CommandException
+
+
+class StorageUriBuilder(object):
+
+  def __init__(self, debug, bucket_storage_uri_class):
+    """
+    Args:
+      debug: Debug level to pass in to boto connection (range 0..3).
+      bucket_storage_uri_class: Class to instantiate for cloud StorageUris.
+                                Settable for testing/mocking.
+    """
+    self.bucket_storage_uri_class = bucket_storage_uri_class
+    self.debug = debug
+
+  def StorageUri(self, uri_str, is_latest=False):
+    """
+    Instantiates StorageUri using class state and gsutil default flag values.
+
+    Args:
+      uri_str: StorageUri naming bucket or object.
+      is_latest: boolean indicating whether this versioned object represents the
+          current version.
+
+    Returns:
+      boto.StorageUri for given uri_str.
+
+    Raises:
+      InvalidUriError: if uri_str not valid.
+    """
+    return boto.storage_uri(
+        uri_str, 'file', debug=self.debug, validate=False,
+        bucket_storage_uri_class=self.bucket_storage_uri_class,
+        suppress_consec_slashes=False, is_latest=is_latest)