diff options
Diffstat (limited to 'code/fsobject.py')
-rw-r--r-- | code/fsobject.py | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/code/fsobject.py b/code/fsobject.py deleted file mode 100644 index f4268ef0..00000000 --- a/code/fsobject.py +++ /dev/null @@ -1,87 +0,0 @@ -import fstype - -class FrozenException(Exception): pass -class NotLoadedYet(Exception): pass - -class FSObject(object): - def __init__(self, path): - if type(self) == FSObject: - raise TypeError("FSObject is an abstract class and cannot be initialized.") - self.path = path - self.exists = False - self.accessible = False - self.marked = False - self.tagged = False - self.frozen = False - self.loaded = False - self.islink = False - self.brokenlink = False - self.stat = None - self.infostring = None - self.permissions = None - self.type = fstype.Unknown - - # load() reads useful information about the file from the file system - # and caches it in instance attributes. - def load(self): - self.stop_if_frozen() - self.loaded = True - - import os - try: - self.stat = os.stat(self.path) - self.islink = os.path.islink(self.path) - self.exists = True - self.accessible = True - - if os.path.isdir(self.path): - self.type = fstype.Directory - self.infostring = ' %d' % len(os.listdir(self.path)) - elif os.path.isfile(self.path): - self.type = fstype.File - self.infostring = ' %d' % self.stat.st_size - else: - self.type = fstype.Unknown - self.infostring = None - - except OSError: - self.islink = False - self.infostring = None - self.type = fstype.Nonexistent - self.exists = False - self.accessible = False - - def load_once(self): - self.stop_if_frozen() - if not self.loaded: - self.load() - return True - return False - - def load_if_outdated(self): - self.stop_if_frozen() - if self.load_once(): return True - - import os - real_mtime = os.stat(self.path).st_mtime - cached_mtime = self.stat.st_mtime - - if real_mtime != cached_mtime: - self.load() - return True - return False - - def clone(self): - clone = type(self)(self.path) - for key in iter(self.__dict__): - clone.__dict__[key] = self.__dict__[key] - return clone - - def frozen_clone(self): - clone = self.clone() - clone.frozen = True - return clone - - def stop_if_frozen(self): - if self.frozen: raise FrozenException('Cannot modify datastructure while it is frozen') - |