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# Copyright (c) 2005 Manuel Amador
# Copyright (c) 2009-2011 Forest Bond
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import os, select
from inotifyx import binding
from inotifyx.distinfo import version as __version__
constants = {}
for name in dir(binding):
if name.startswith('IN_'):
globals()[name] = constants[name] = getattr(binding, name)
class InotifyEvent(object):
'''
InotifyEvent(wd, mask, cookie, name)
A representation of the inotify_event structure. See the inotify
documentation for a description of these fields.
'''
wd = None
mask = None
cookie = None
name = None
def __init__(self, wd, mask, cookie, name):
self.wd = wd
self.mask = mask
self.cookie = cookie
self.name = name
def __str__(self):
return '%s: %s' % (self.wd, self.get_mask_description())
def __repr__(self):
return '%s(%s, %s, %s, %s)' % (
self.__class__.__name__,
repr(self.wd),
repr(self.mask),
repr(self.cookie),
repr(self.name),
)
def get_mask_description(self):
'''
Return an ASCII string describing the mask field in terms of
bitwise-or'd IN_* constants, or 0. The result is valid Python code
that could be eval'd to get the value of the mask field. In other
words, for a given event:
>>> from inotifyx import *
>>> assert (event.mask == eval(event.get_mask_description()))
'''
parts = []
for name, value in constants.items():
if self.mask & value:
parts.append(name)
if parts:
return '|'.join(parts)
return '0'
def get_events(fd, *args):
'''
get_events(fd[, timeout])
Return a list of InotifyEvent instances representing events read from
inotify. If timeout is None, this will block forever until at least one
event can be read. Otherwise, timeout should be an integer or float
specifying a timeout in seconds. If get_events times out waiting for
events, an empty list will be returned. If timeout is zero, get_events
will not block.
'''
return [
InotifyEvent(wd, mask, cookie, name)
for wd, mask, cookie, name in binding.get_events(fd, *args)
]
if __name__ == '__main__':
import sys
if len(sys.argv) == 1:
print >>sys.stderr, 'usage: inotify path [path ...]'
sys.exit(1)
paths = sys.argv[1:]
print "paths: ", paths
fd = binding.init()
wd_to_path = {}
try:
for path in paths:
wd = binding.add_watch(fd, path)
wd_to_path[wd] = path
print "wd_to_path: ", wd_to_path
try:
while True:
events = get_events(fd)
for event in events:
path = wd_to_path[event.wd]
parts = [event.get_mask_description()]
a = event.get_mask_description()
a_array = a.split("|")
if event.name:
parts.append(event.name)
# print '%s: %s' % (path, ' '.join(parts))
is_dir = ("IN_ISDIR" in a_array)
is_closed = ("IN_CLOSE" in a_array or "IN_CLOSE_WRITE" in a_array)
is_created= ("IN_CREATE" in a_array)
# if a new directory is created inside the monitored one,
# this one has to be monitored as well
if is_created and is_dir and event.name:
dirname = path + os.sep + event.name
if dirname in paths:
print "already contained in path list"
else:
wd = binding.add_watch(fd, dirname)
wd_to_path[wd] = dirname
print "added path to watch", wd_to_path
# only closed files are send
if is_closed and not is_dir:
parentDir = path
relativePath = ""
while True:
if parentDir not in paths:
(parentDir,relDir) = os.path.split(parentDir)
relativePath += os.sep + relDir
else:
print "parent", parentDir
print "relativePath", relativePath
print "filename", event.name
break
except KeyboardInterrupt:
pass
finally:
os.close(fd)