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delta: Minor refactoring in find_delta

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Use better variable names and reduce lambda usage.
This commit is contained in:
Fatih Aşıcı
2011-04-03 13:30:34 +00:00
parent fdd0d38cdd
commit 27a437c650
1 changed files with 7 additions and 7 deletions
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pisi/operations/delta.py
+7 -7
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@@ -1,6 +1,6 @@
# -*- coding: utf-8 -*- # -*- coding: utf-8 -*-
# #
# Copyright (C) 2007-2010, TUBITAK/UEKAE # Copyright (C) 2007-2011, TUBITAK/UEKAE
# #
# This program is free software; you can redistribute it and/or modify it under # This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free # the terms of the GNU General Public License as published by the Free
@@ -200,18 +200,18 @@ def create_delta_package(old_package, new_package):
# Hash equal but path different ones (these are the relocations) # Hash equal but path different ones (these are the relocations)
# Hash and also path equal ones (do nothing) # Hash and also path equal ones (do nothing)
def find_delta(oldfiles, newfiles): def find_delta(old_files, new_files):
hashto_files = {} hashto_files = {}
for f in newfiles.list: for f in new_files.list:
hashto_files.setdefault(f.hash, []).append(f) hashto_files.setdefault(f.hash, []).append(f)
files_new = set(map(lambda x: x.hash, newfiles.list)) new_hashes = set([f.hash for f in new_files.list])
files_old = set(map(lambda x: x.hash, oldfiles.list)) old_hashes = set([f.hash for f in old_files.list])
files_delta = files_new - files_old hashes_delta = new_hashes - old_hashes
deltas = [] deltas = []
for h in files_delta: for h in hashes_delta:
deltas.extend(hashto_files[h]) deltas.extend(hashto_files[h])
# Directory hashes are None. There was a bug with PolicyKit that # Directory hashes are None. There was a bug with PolicyKit that