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authorHelmut Grohne <helmut@subdivi.de>2021-12-29 15:36:12 +0100
committerHelmut Grohne <helmut@subdivi.de>2021-12-29 15:47:29 +0100
commit6b87bc371b91917980884d6dd20e39d3cda47fc7 (patch)
tree0015db4d3e7b5274c2e895811bf5bd4cbb5404bd /dedup/hashing.py
parentc2b5909eff090ebb3f19ab88308f0cc7b913157e (diff)
downloaddebian-dedup-6b87bc371b91917980884d6dd20e39d3cda47fc7.tar.gz
DecompressedHash: also gain a name property for consistency
Diffstat (limited to 'dedup/hashing.py')
-rw-r--r--dedup/hashing.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/dedup/hashing.py b/dedup/hashing.py
index 27f303c..9cebcbb 100644
--- a/dedup/hashing.py
+++ b/dedup/hashing.py
@@ -84,7 +84,7 @@ class HashBlacklistContent:
class DecompressedHash:
"""Apply a decompression function before the hash. This class provides the
hashlib interface (update, hexdigest, copy) excluding digest and name."""
- def __init__(self, decompressor, hashobj):
+ def __init__(self, decompressor, hashobj, name="unnamed"):
"""
@param decompressor: a decompression object like bz2.BZ2Decompressor or
lzma.LZMADecompressor. It has to provide methods decompress and
@@ -92,9 +92,11 @@ class DecompressedHash:
method.
@param hashobj: a hashlib-like obj providing methods update, hexdigest
and copy
+ @param name: initialized the name property
"""
self.decompressor = decompressor
self.hashobj = hashobj
+ self.name = name
def update(self, data):
self.hashobj.update(self.decompressor.decompress(data))
@@ -113,7 +115,8 @@ class DecompressedHash:
return tmphash.hexdigest()
def copy(self):
- return DecompressedHash(self.decompressor.copy(), self.hashobj.copy())
+ return DecompressedHash(self.decompressor.copy(), self.hashobj.copy(),
+ self.name)
class SuppressingHash:
"""A hash that silences exceptions from the update and hexdigest methods of