Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/boto/sdb/db/blob.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.
+
+
+class Blob(object):
+    """Blob object"""
+    def __init__(self, value=None, file=None, id=None):
+        self._file = file
+        self.id = id
+        self.value = value
+
+    @property
+    def file(self):
+        from StringIO import StringIO
+        if self._file:
+            f = self._file
+        else:
+            f = StringIO(self.value)
+        return f
+
+    def __str__(self):
+        return unicode(self).encode('utf-8')
+
+    def __unicode__(self):
+        if hasattr(self.file, "get_contents_as_string"):
+            value = self.file.get_contents_as_string()
+        else:
+            value = self.file.getvalue()
+        if isinstance(value, unicode):
+            return value
+        else:
+            return value.decode('utf-8')
+
+
+    def read(self):
+        if hasattr(self.file, "get_contents_as_string"):
+            return self.file.get_contents_as_string()
+        else:
+            return self.file.read()
+
+    def readline(self):
+        return self.file.readline()
+
+    def next(self):
+        return self.file.next()
+
+    def __iter__(self):
+        return iter(self.file)
+
+    @property
+    def size(self):
+        if self._file:
+            return self._file.size
+        elif self.value:
+            return len(self.value)
+        else:
+            return 0