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#!/usr/bin/env python
##
# Copyright (c) 2007 Apple Inc.
#
# This is the MIT license. This software may also be distributed under the
# same terms as Python (the PSF license).
#
# 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 sys
import os
import getopt
import xattr
def usage(e=None):
if e:
print e
print ""
name = os.path.basename(sys.argv[0])
print "usage: %s [-l] file [file ...]" % (name,)
print " %s -p [-l] attr_name file [file ...]" % (name,)
print " %s -w attr_name attr_value file [file ...]" % (name,)
print " %s -d attr_name file [file ...]" % (name,)
print ""
print "The first form lists the names of all xattrs on the given file(s)."
print "The second form (-p) prints the value of the xattr attr_name."
print "The third form (-w) sets the value of the xattr attr_name to attr_value."
print "The fourth form (-d) deletes the xattr attr_name."
print ""
print "options:"
print " -h: print this help"
print " -l: print long format (attr_name: attr_value)"
if e:
sys.exit(64)
else:
sys.exit(0)
def main():
try:
(optargs, args) = getopt.getopt(sys.argv[1:], "hlpwd", ["help"])
except getopt.GetoptError, e:
usage(e)
attr_name = None
long_format = False
read = False
write = False
delete = False
status = 0
for opt, arg in optargs:
if opt in ("-h", "--help"):
usage()
elif opt == "-l":
long_format = True
elif opt == "-p":
read = True
elif opt == "-w":
write = True
elif opt == "-d":
delete = True
if write or delete:
if long_format:
usage("-l not allowed with -w or -p")
if read or write or delete:
if not args:
usage("No attr_name")
attr_name = args.pop(0)
if write:
if not args:
usage("No attr_value")
attr_value = args.pop(0)
if len(args) > 1:
multiple_files = True
else:
multiple_files = False
for filename in args:
def onError(e):
if not os.path.exists(filename):
sys.stderr.write("No such file: %s\n" % (filename,))
else:
sys.stderr.write(str(e) + "\n")
status = 1
try:
attrs = xattr.xattr(filename)
except (IOError, OSError), e:
onError(e)
continue
if write:
try:
attrs[attr_name] = attr_value
except (IOError, OSError), e:
onError(e)
continue
elif delete:
try:
del attrs[attr_name]
except (IOError, OSError), e:
onError(e)
continue
except KeyError:
onError("No such xattr: %s" % (attr_name,))
continue
else:
try:
if read:
attr_names = (attr_name,)
else:
attr_names = attrs.keys()
except (IOError, OSError), e:
onError(e)
continue
if multiple_files:
file_prefix = "%s: " % (filename,)
else:
file_prefix = ""
for attr_name in attr_names:
try:
if long_format:
print "".join((file_prefix, "%s: " % (attr_name,), attrs[attr_name]))
else:
if read:
print "".join((file_prefix, attrs[attr_name]))
else:
print "".join((file_prefix, attr_name))
except KeyError:
onError("%sNo such xattr: %s" % (file_prefix, attr_name))
continue
sys.exit(status)
if __name__ == "__main__":
main()
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