Mercurial > piecrust2

comparison piecrust/cache.py @ 0:a212a3f2e3ee

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Initial commit.
author Ludovic Chabant <ludovic@chabant.com>
date Sat, 21 Dec 2013 14:44:02 -0800
parents
children f485ba500df3
comparison
equal deleted inserted replaced
-1:000000000000 0:a212a3f2e3ee
1 import os
2 import os.path
3 import codecs
4
5
6 class SimpleCache(object):
7 def __init__(self, base_dir):
8 if not os.path.isdir(base_dir):
9 os.makedirs(base_dir, 0755)
10 self.base_dir = base_dir
11
12 def isValid(self, path, time):
13 cache_time = self.getCacheTime(path)
14 if cache_time is None:
15 return False
16 if isinstance(time, list):
17 for t in time:
18 if cache_time < t:
19 return False
20 return True
21 return cache_time >= time
22
23 def getCacheTime(self, path):
24 cache_path = self.getCachePath(path)
25 try:
26 return os.path.getmtime(cache_path)
27 except os.error:
28 return None
29
30 def has(self, path):
31 cache_path = self.getCachePath(path)
32 return os.path.isfile(cache_path)
33
34 def read(self, path):
35 cache_path = self.getCachePath(path)
36 with codecs.open(cache_path, 'r', 'utf-8') as fp:
37 return fp.read()
38
39 def write(self, path, content):
40 cache_path = self.getCachePath(path)
41 cache_dir = os.path.dirname(cache_path)
42 if not os.path.isdir(cache_dir):
43 os.makedirs(cache_dir, 0755)
44 with codecs.open(cache_path, 'w', 'utf-8') as fp:
45 fp.write(content)
46