Added gsutil to depot tools

third_party/gsutil/boto/boto/s3/tagging.py

Index: third_party/gsutil/boto/boto/s3/tagging.py
diff --git a/third_party/gsutil/boto/boto/s3/tagging.py b/third_party/gsutil/boto/boto/s3/tagging.py
new file mode 100644
index 0000000000000000000000000000000000000000..0af6406fb12c6cd316cdd41e759fb0398abba632
--- /dev/null
+++ b/third_party/gsutil/boto/boto/s3/tagging.py
@@ -0,0 +1,71 @@
+from boto import handler
+import xml.sax
+
+
+class Tag(object):
+    def __init__(self, key=None, value=None):
+        self.key = key
+        self.value = value
+
+    def startElement(self, name, attrs, connection):
+        return None
+
+    def endElement(self, name, value, connection):
+        if name == 'Key':
+            self.key = value
+        elif name == 'Value':
+            self.value = value
+
+    def to_xml(self):
+        return '<Tag><Key>%s</Key><Value>%s</Value></Tag>' % (
+            self.key, self.value)
+
+    def __eq__(self, other):
+        return (self.key == other.key and self.value == other.value)
+
+
+class TagSet(list):
+    def startElement(self, name, attrs, connection):
+        if name == 'Tag':
+            tag = Tag()
+            self.append(tag)
+            return tag
+        return None
+
+    def endElement(self, name, value, connection):
+        setattr(self, name, value)
+
+    def add_tag(self, key, value):
+        tag = Tag(key, value)
+        self.append(tag)
+
+    def to_xml(self):
+        xml = '<TagSet>'
+        for tag in self:
+            xml += tag.to_xml()
+        xml += '</TagSet>'
+        return xml
+
+
+class Tags(list):
+    """A container for the tags associated with a bucket."""
+
+    def startElement(self, name, attrs, connection):
+        if name == 'TagSet':
+            tag_set = TagSet()
+            self.append(tag_set)
+            return tag_set
+        return None
+
+    def endElement(self, name, value, connection):
+        setattr(self, name, value)
+
+    def to_xml(self):
+        xml = '<Tagging>'
+        for tag_set in self:
+            xml += tag_set.to_xml()
+        xml +='</Tagging>'
+        return xml
+
+    def add_tag_set(self, tag_set):
+        self.append(tag_set)