__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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#-*- coding: utf-8 -*-
# FilenameCleaner.py
# Module to stripping the version numers from filenames
#
# i.e.:
# /lib/libdl-2.19.so --> /lib/libdl.so
# /lib/libncurses.so.5.9 --> /lib/libncurses.so
#
# This implementation really sux and surely there is a much better
# way how to implement following methods. They are properly tested
# in `test_FilenameCleaner.py` so feel free to refactor them.
#
# Copyright (C) 2016 Jakub Kadlcik
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
class FilenameCleaner(object):
@staticmethod
def strip(filename):
filename = FilenameCleaner._strip_abnormalities(filename)
try:
slash = filename.rindex('/')
dirname = filename[:slash]
basename = filename[slash+1:]
if "." in basename:
basename = FilenameCleaner._strip_around_so_delimited_dots(basename)
basename = FilenameCleaner._strip_after_dash(basename)
return dirname + '/' + basename
except IndexError: pass
except ValueError: pass
return filename
@staticmethod
def _strip_abnormalities(filename):
# Doesnt matter what is after space cause filename ends with first space
try: filename = filename[:filename.index(' ')]
except ValueError: pass
# On Gentoo, there is #new after some files in lsof
# i.e. /usr/bin/gvim#new (deleted)
if filename.endswith('#new'):
filename = filename[0:-4]
# On Fedora, there is something like ;541350b3 after some files in lsof
# See issue #9
if ';' in filename:
filename = filename[0:filename.index(';')]
# On Fedora, there is something like .#prelink#.N3n7Rk (deleted) after some files in lsof
# See issue #9
if '.#prelink#.' in filename:
filename = filename[0:filename.rindex('.#prelink#.')]
return filename
@staticmethod
def _strip_around_so_delimited_dots(basename):
try:
split = basename.split(".so")
basename = split[0]
if len(split) > 1:
basename += ".so"
first_dot_i = basename.index(".")
last_dot_i = basename.rindex(".")
basename = basename[:first_dot_i] + basename[last_dot_i:]
except IndexError: pass
except ValueError: pass
return basename
@staticmethod
def _strip_after_dash(basename):
try:
dash = basename.rindex("-")
dot = basename.index(".", dash)
if FilenameCleaner._is_version(basename[dash+1:dot]):
basename = basename[:dash] + basename[dot:]
except IndexError: pass
except ValueError: pass
return basename
@staticmethod
def _is_version(string):
"""
Returns True if string contains only digits and dots
"""
for char in string:
if (not char.isdigit()) or char == ".":
return False
return True