given data from a previous backup.
"""
+from __future__ import division, print_function, unicode_literals
+
import base64
import hashlib
import itertools
def compute_breaks(self, buf):
breaks = [0]
signature = self.window_init()
- for i in xrange(len(buf)):
+ for i in range(len(buf)):
self.window_update(signature, ord(buf[i]))
block_len = i - breaks[-1] + 1
if ((signature[0] % self.TARGET_CHUNK_SIZE == self.BREAKMARK_VALUE
n -= i
position = 0
- for next_start, (size, digest) in sorted(signatures.iteritems()):
+ for next_start, (size, digest) in sorted(signatures.items()):
if next_start < position:
- print "Warning: overlapping signatures, ignoring"
+ print("Warning: overlapping signatures, ignoring")
continue
skip(next_start - position)
records.append(struct.pack(">H", size) + digest)
"""Loads signatures from the binary format stored in the database."""
entry_size = 2 + self.hash_size
if len(signatures) % entry_size != 0:
- print "Warning: Invalid signatures to load"
+ print("Warning: Invalid signatures to load")
return {}
null_digest = "\x00" * self.hash_size
if metadata.items.type not in ("-", "f"): continue
try:
path = os.path.join(reference_path, metadata.items.name)
- print "Path:", path
+ print("Path:", path)
# TODO: Check file size for early abort if different
self.rebuild_file(open(path), metadata)
except IOError as e:
- print e
+ print(e)
pass # Ignore the file
self.database.commit()
buf = fp.read(length)
verifier.update(buf)
+ # Zero blocks get no checksums, so skip further processing on them.
+ if object is None: continue
+
if exact:
csum = cumulus.ChecksumCreator(CHECKSUM_ALGORITHM)
csum.update(buf)
subblock[k] = self.chunker.dump_signatures(subblock[k])
self.store_checksums(checksums, subblock)
else:
- print "Checksum mismatch"
+ print("Checksum mismatch")
def store_checksums(self, block_checksums, subblock_signatures):
- for (segment, object), (size, checksum) in block_checksums.iteritems():
+ for (segment, object), (size, checksum) in block_checksums.items():
segmentid = self.segment_to_id(segment)
self.cursor.execute(
"""insert or ignore into block_index(segmentid, object)
os.path.relpath(f, topdir))
if metadata:
for (k, v) in sorted(metadata.items()):
- print "%s: %s" % (k, v)
- print
+ print("%s: %s" % (k, v))
+ print()
sys.exit(0)
# Sample code to rebuild the segments table from metadata--needs to be