def obj_download(bucket_name, dest, key_name, force=False, recursive=False,
multi=False, checksum=False):
bucket = Obj.conn.get_bucket(bucket_name)
if recursive:
logging.info("Starting recursive download %s to %s prefix %s" %
(bucket.name, dest, key_name))
if not os.path.isdir(dest):
logging.error("DEST %s is not a directory." % dest)
return
else:
for key in bucket.list(prefix=key_name):
filename = dest.rstrip(os.sep) + os.sep + key.name
if not check_key_download(bucket, key.name, filename):
continue
logging.info("Downloading key %s (%d) to %s" %
(key, key.size, filename))
if multi and key.size > 5 * 1024 * 1024:
m = MultiPart()
m.start_download(bucket_name, key.name, dest)
else:
download_file(key, filename)
else:
if not key_name:
logging.error("Must specify a key to download or use " +
"recusive option")
return
if os.path.isfile(dest) and not force:
logging.error("File %s already exists " % dest +
"please force flag to overwrite.")
return
else:
key_name = key_name.rstrip(os.path.sep)
key = bucket.get_key(key_name)
if key is None:
logging.error("Key does not exist or if this is a prefix" +
" you need to specify recusive, %s" % key_name)
return
if checksum and not check_key_download(bucket, key.name, dest):
return
# only multipart if we specify and the key is >5MB
if multi and key.size > 5 * 1024 * 1024:
logging.info("Downloading key %s (%d) to %s" %
(key, key.size, dest))
m = MultiPart()
m.start_download(bucket_name, key_name, dest)
else:
key = bucket.get_key(key_name)
download_file(key, dest)
