Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/boto/pyami/copybot.py

Index: third_party/gsutil/boto/boto/pyami/copybot.py
diff --git a/third_party/gsutil/boto/boto/pyami/copybot.py b/third_party/gsutil/boto/boto/pyami/copybot.py
new file mode 100644
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+# Copyright (c) 2006,2007 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
+from boto.pyami.scriptbase import ScriptBase
+import os, StringIO
+
+class CopyBot(ScriptBase):
+
+    def __init__(self):
+        ScriptBase.__init__(self)
+        self.wdir = boto.config.get('Pyami', 'working_dir')
+        self.log_file = '%s.log' % self.instance_id
+        self.log_path = os.path.join(self.wdir, self.log_file)
+        boto.set_file_logger(self.name, self.log_path)
+        self.src_name = boto.config.get(self.name, 'src_bucket')
+        self.dst_name = boto.config.get(self.name, 'dst_bucket')
+        self.replace = boto.config.getbool(self.name, 'replace_dst', True)
+        s3 = boto.connect_s3()
+        self.src = s3.lookup(self.src_name)
+        if not self.src:
+            boto.log.error('Source bucket does not exist: %s' % self.src_name)
+        dest_access_key = boto.config.get(self.name, 'dest_aws_access_key_id', None)
+        if dest_access_key:
+            dest_secret_key = boto.config.get(self.name, 'dest_aws_secret_access_key', None)
+            s3 = boto.connect(dest_access_key, dest_secret_key)
+        self.dst = s3.lookup(self.dst_name)
+        if not self.dst:
+            self.dst = s3.create_bucket(self.dst_name)
+
+    def copy_bucket_acl(self):
+        if boto.config.get(self.name, 'copy_acls', True):
+            acl = self.src.get_xml_acl()
+            self.dst.set_xml_acl(acl)
+
+    def copy_key_acl(self, src, dst):
+        if boto.config.get(self.name, 'copy_acls', True):
+            acl = src.get_xml_acl()
+            dst.set_xml_acl(acl)
+
+    def copy_keys(self):
+        boto.log.info('src=%s' % self.src.name)
+        boto.log.info('dst=%s' % self.dst.name)
+        try:
+            for key in self.src:
+                if not self.replace:
+                    exists = self.dst.lookup(key.name)
+                    if exists:
+                        boto.log.info('key=%s already exists in %s, skipping' % (key.name, self.dst.name))
+                        continue
+                boto.log.info('copying %d bytes from key=%s' % (key.size, key.name))
+                prefix, base = os.path.split(key.name)
+                path = os.path.join(self.wdir, base)
+                key.get_contents_to_filename(path)
+                new_key = self.dst.new_key(key.name)
+                new_key.set_contents_from_filename(path)
+                self.copy_key_acl(key, new_key)
+                os.unlink(path)
+        except:
+            boto.log.exception('Error copying key: %s' % key.name)
+
+    def copy_log(self):
+        key = self.dst.new_key(self.log_file)
+        key.set_contents_from_filename(self.log_path)
+        
+    def main(self):
+        fp = StringIO.StringIO()
+        boto.config.dump_safe(fp)
+        self.notify('%s (%s) Starting' % (self.name, self.instance_id), fp.getvalue())
+        if self.src and self.dst:
+            self.copy_keys()
+        if self.dst:
+            self.copy_log()
+        self.notify('%s (%s) Stopping' % (self.name, self.instance_id),
+                    'Copy Operation Complete')
+        if boto.config.getbool(self.name, 'exit_on_completion', True):
+            ec2 = boto.connect_ec2()
+            ec2.terminate_instances([self.instance_id])
+