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https://github.com/tahoe-lafs/tahoe-lafs.git
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100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
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# Most of this is copied from Twisted 11.0. The reason for this hack is that
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# twisted.internet.inotify can't be imported when the platform does not support inotify.
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# from /usr/src/linux/include/linux/inotify.h
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IN_ACCESS = 0x00000001L # File was accessed
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IN_MODIFY = 0x00000002L # File was modified
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IN_ATTRIB = 0x00000004L # Metadata changed
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IN_CLOSE_WRITE = 0x00000008L # Writeable file was closed
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IN_CLOSE_NOWRITE = 0x00000010L # Unwriteable file closed
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IN_OPEN = 0x00000020L # File was opened
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IN_MOVED_FROM = 0x00000040L # File was moved from X
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IN_MOVED_TO = 0x00000080L # File was moved to Y
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IN_CREATE = 0x00000100L # Subfile was created
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IN_DELETE = 0x00000200L # Subfile was delete
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IN_DELETE_SELF = 0x00000400L # Self was deleted
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IN_MOVE_SELF = 0x00000800L # Self was moved
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IN_UNMOUNT = 0x00002000L # Backing fs was unmounted
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IN_Q_OVERFLOW = 0x00004000L # Event queued overflowed
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IN_IGNORED = 0x00008000L # File was ignored
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IN_ONLYDIR = 0x01000000 # only watch the path if it is a directory
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IN_DONT_FOLLOW = 0x02000000 # don't follow a sym link
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IN_MASK_ADD = 0x20000000 # add to the mask of an already existing watch
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IN_ISDIR = 0x40000000 # event occurred against dir
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IN_ONESHOT = 0x80000000 # only send event once
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IN_CLOSE = IN_CLOSE_WRITE | IN_CLOSE_NOWRITE # closes
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IN_MOVED = IN_MOVED_FROM | IN_MOVED_TO # moves
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IN_CHANGED = IN_MODIFY | IN_ATTRIB # changes
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IN_WATCH_MASK = (IN_MODIFY | IN_ATTRIB |
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IN_CREATE | IN_DELETE |
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IN_DELETE_SELF | IN_MOVE_SELF |
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IN_UNMOUNT | IN_MOVED_FROM | IN_MOVED_TO)
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_FLAG_TO_HUMAN = [
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(IN_ACCESS, 'access'),
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(IN_MODIFY, 'modify'),
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(IN_ATTRIB, 'attrib'),
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(IN_CLOSE_WRITE, 'close_write'),
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(IN_CLOSE_NOWRITE, 'close_nowrite'),
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(IN_OPEN, 'open'),
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(IN_MOVED_FROM, 'moved_from'),
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(IN_MOVED_TO, 'moved_to'),
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(IN_CREATE, 'create'),
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(IN_DELETE, 'delete'),
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(IN_DELETE_SELF, 'delete_self'),
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(IN_MOVE_SELF, 'move_self'),
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(IN_UNMOUNT, 'unmount'),
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(IN_Q_OVERFLOW, 'queue_overflow'),
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(IN_IGNORED, 'ignored'),
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(IN_ONLYDIR, 'only_dir'),
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(IN_DONT_FOLLOW, 'dont_follow'),
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(IN_MASK_ADD, 'mask_add'),
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(IN_ISDIR, 'is_dir'),
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(IN_ONESHOT, 'one_shot')
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]
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def humanReadableMask(mask):
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"""
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Auxiliary function that converts an hexadecimal mask into a series
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of human readable flags.
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"""
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s = []
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for k, v in _FLAG_TO_HUMAN:
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if k & mask:
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s.append(v)
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return s
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# This class is not copied from Twisted; it acts as a mock.
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class INotify(object):
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def startReading(self):
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pass
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def stopReading(self):
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pass
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def watch(self, filepath, mask=IN_WATCH_MASK, autoAdd=False, callbacks=None, recursive=False):
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self.callbacks = callbacks
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def event(self, filepath, mask):
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for cb in self.callbacks:
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cb(None, filepath, mask)
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__all__ = ["INotify", "humanReadableMask", "IN_WATCH_MASK", "IN_ACCESS",
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"IN_MODIFY", "IN_ATTRIB", "IN_CLOSE_NOWRITE", "IN_CLOSE_WRITE",
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"IN_OPEN", "IN_MOVED_FROM", "IN_MOVED_TO", "IN_CREATE",
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"IN_DELETE", "IN_DELETE_SELF", "IN_MOVE_SELF", "IN_UNMOUNT",
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"IN_Q_OVERFLOW", "IN_IGNORED", "IN_ONLYDIR", "IN_DONT_FOLLOW",
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"IN_MASK_ADD", "IN_ISDIR", "IN_ONESHOT", "IN_CLOSE",
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"IN_MOVED", "IN_CHANGED"]
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