Made header length a variable so we can change it later if needed

1 files changed, 6 insertions, 4 deletions

diff --git a/FuseArchive/Chunk.py b/FuseArchive/Chunk.py
index 9f12f83..9bb05bd 100644
--- a/FuseArchive/Chunk.py
+++ b/FuseArchive/Chunk.py
@@ -8,7 +8,9 @@ import struct, zlib, logging
 hformat = 'HLBL48x'
 compress_level = 6
 
-assert struct.calcsize( hformat ) == 64, \
+header_length = 64
+
+assert struct.calcsize( hformat ) == header_length, \
     "Header struct must be 64 bytes not %d bytes" % \
     struct.calcsize( hformat )
 
@@ -57,15 +59,15 @@ class Chunk:
     @staticmethod
     def deserialize(data):
         logging.debug( "Deserializing data of length %d" % len( data ) )
-        hd = Chunk.parse_header( data[ :64 ] )
+        hd = Chunk.parse_header( data[ :header_length ] )
         obj = Chunk()
         obj.count = hd[ 'count' ]
 
         compression = hd[ 'compression' ]
         if compression == 0:
-            obj.chunk = data[ 64: ]
+            obj.chunk = data[ header_length: ]
         elif compression == 1:
-            obj.chunk = zlib.decompress( data[64: ] )
+            obj.chunk = zlib.decompress( data[ header_length: ] )
         else:
             raise ValueError( "Invalid compression type: %d" % compression )