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comparison dogdish/dispatcher.py @ 20:71c36a7842d1

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Use mtime to determine most recent update; don't cache updates since timestamps can change.
author Jonathan Griffin <jgriffin@mozilla.com>
date Mon, 12 Nov 2012 23:27:09 +0000
parents 608df6b3de80
children ce97a26e4c03
comparison
equal deleted inserted replaced
19:608df6b3de80 20:71c36a7842d1
49 def __init__(self, directory, filename): 49 def __init__(self, directory, filename):
50 self.directory = directory 50 self.directory = directory
51 self.filename = filename 51 self.filename = filename
52 self.path = os.path.join(directory, filename) 52 self.path = os.path.join(directory, filename)
53 self.stamp = filename[len(self.prefix):-len(self.suffix)] 53 self.stamp = filename[len(self.prefix):-len(self.suffix)]
54 self.modifiedTime = os.path.getmtime(self.path)
54 self.size = os.path.getsize(self.path) 55 self.size = os.path.getsize(self.path)
55 56
56 # cached properties 57 # cached properties
57 self._application = None 58 self._application = None
58 self._hash = None 59 self._hash = None
205 # check for new updates 206 # check for new updates
206 contents = self.update_class.updates(self.directory) 207 contents = self.update_class.updates(self.directory)
207 new = contents.difference(self.updates.keys()) 208 new = contents.difference(self.updates.keys())
208 if not new: 209 if not new:
209 # directory contents unchanged from cached values 210 # directory contents unchanged from cached values
210 return False 211 # return False
211 212 # XXX: we can't rely on caching this, since in the case of a bad update,
212 for update in new: 213 # an earlier update will be promoted via 'touch'.
214 pass
215
216 for update in contents:
213 self.updates[update] = self.update_class(self.directory, update) 217 self.updates[update] = self.update_class(self.directory, update)
214 if self.current_update: 218 if self.current_update:
215 if self.updates[update].stamp > self.current_update.stamp: 219 if self.updates[update].modifiedTime > self.current_update.modifiedTime:
216 self.current_update = self.updates[update] 220 self.current_update = self.updates[update]
217 else: 221 else:
218 self.current_update = self.updates[update] 222 self.current_update = self.updates[update]
219 223
220 # TODO: could remove old files from the cache if not found in contents 224 # TODO: could remove old files from the cache if not found in contents