blacklist content rather than hashes

Otherwise the gzip hash cannot tell the empty stream and the
compressed empty stream apart.

1 files changed, 5 insertions, 10 deletions

diff --git a/importpkg.py b/importpkg.py
index 54f6181..cb16f97 100755
--- a/importpkg.py
+++ b/importpkg.py
@@ -16,26 +16,21 @@ import yaml
 
 from dedup.arreader import ArReader
 from dedup.debpkg import process_control, get_tar_hashes
-from dedup.hashing import HashBlacklist, DecompressedHash, SuppressingHash, \
-    HashedStream
+from dedup.hashing import DecompressedHash, SuppressingHash, HashedStream, \
+        HashBlacklistContent
 from dedup.compression import GzipDecompressor, DecompressedStream
 from dedup.image import GIFHash, PNGHash
 
-boring_sha512_hashes = set((
-    # ""
-    "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e",
-    # "\n"
-    "be688838ca8686e5c90689bf2ab585cef1137c999b48c70b92f67a5c34dc15697b5d11c982ed6d71be1e1e7f7b4e0733884aa97c3f7a339a8ed03577cf74be09"))
+boring_content = set(("", "\n"))
 
 def sha512_nontrivial():
-    return HashBlacklist(hashlib.sha512(), boring_sha512_hashes)
+    return HashBlacklistContent(hashlib.sha512(), boring_content)
 
 def gziphash():
     hashobj = DecompressedHash(GzipDecompressor(), hashlib.sha512())
     hashobj = SuppressingHash(hashobj, (ValueError, zlib.error))
     hashobj.name = "gzip_sha512"
-    # don't blacklist boring hashes for gzip to get gzip issues right
-    return hashobj
+    return HashBlacklistContent(hashobj, boring_content)
 
 def pnghash():
     hashobj = PNGHash(hashlib.sha512())