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#!/usr/bin/python
# Copyright (C) 2010, 2011 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import cliapp
import os
import sys
import summainlib
class OutputFormat(object):
def __init__(self, output):
self.output = output
def close(self):
pass
def write_object(self, name, o, checksums):
raise NotImplemented()
class Rfc822(OutputFormat):
def write_object(self, name, o, checksums):
keys = (['Mtime', 'Mode', 'Ino', 'Dev', 'Nlink', 'Size',
'Uid', 'Username', 'Gid', 'Group', 'Target'] +
checksums)
values = [('Name', name)]
values += [(k, o[k]) for k in keys if o[k] != '']
record = ''.join('%s: %s\n' % (k, v) for k, v in values if v != '')
self.output.write('%s\n' % record)
class Summain(cliapp.Application):
def add_settings(self):
self.settings.boolean(['relative-paths', 'r'],
'print paths relative to arguments')
self.settings.boolean(['mangle-paths', 'm'],
'mangle (obfuscate) paths')
self.settings.string(['secret'],
'use SECRET to make mangled paths unguessable')
self.settings.string_list(['exclude'],
'do not output or compute FIELD',
metavar='FIELD')
self.settings.string_list(['checksum', 'c'],
'which checksums to compute: '
'MD5, SHA1, SHA224, SHA256, SHA384, SHA512; '
'use once per checksum type '
'(default is SHA1)')
self.settings.choice(['output-format', 'f'],
['rfc822', 'csv', 'json'],
'choose output format (rfc822, csv, json)')
def files(self, root):
if os.path.isdir(root):
for dirname, dirnames, filenames in os.walk(root):
yield dirname
dirnames.sort()
for filename in sorted(filenames):
yield os.path.join(dirname, filename)
else:
yield root
def process_args(self, args):
relative = self.settings['relative-paths']
exclude = self.settings['exclude']
nn = summainlib.NumberNormalizer()
if self.settings['mangle-paths']:
pn = summainlib.PathNormalizer(self.settings['secret'])
else:
pn = summainlib.SamePath()
checksums = [x.upper()
for x in self.settings['checksum'] or ['SHA1']]
o = summainlib.FilesystemObject('.', nn, pn, exclude)
for checksum in checksums:
try:
o[checksum]
except KeyError:
raise cliapp.AppException('Unknown checksum %s' % checksum)
fmt = Rfc822(self.output)
for root in args:
for filename in self.files(root):
o = summainlib.FilesystemObject(filename, nn, pn, exclude)
if relative:
name = self.relative_path(root, o)
else:
name = o['Name']
fmt.write_object(name, o, checksums)
fmt.close()
def relative_path(self, root, o):
'''Return a path that is relative to root, if possible.
If pathname does not start with root, then return it
unmodified.
'''
if root.endswith(os.sep):
root2 = root
else:
root2 = root + os.sep
pathname = o['Name']
if pathname.startswith(root2):
return pathname[len(root2):]
elif pathname == root and o.isdir():
return '.'
else:
return pathname
Summain(version=summainlib.__version__).run()
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