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# ls.py - functions for listing file information
#
# Copyright (C) 2015 Arthur de Jong
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# The files produced as output from the software do not automatically fall
# under the copyright of the software, unless explicitly stated otherwise.
import stat
import sys
import time
def supports_colors(stream):
"""Check whether the specified stream supports colors."""
if stream.isatty():
try:
import curses
curses.setupterm()
return curses.tigetnum('colors') > 2
except:
pass
return False
# see if stdout supports colors
_stdout_colors = supports_colors(sys.stdout)
def ls_format(info, use_colors=_stdout_colors):
info['date'] = time.strftime(
'%Y-%m-%d %H:%M:%S', time.localtime(info['mtime']))
mode = info.get('mode', 0)
ftype = info.get('type', '?').lower()
color = ''
# get file type
if ftype == 'd':
color = '\x1b[01;34m' # blue
elif ftype == 'l':
color = '\x1b[01;36m' # cyan
elif ftype == 'r':
ftype = '-'
if mode & (stat.S_IXGRP | stat.S_IXUSR | stat.S_IXOTH):
color = '\x1b[01;32m' # green
# build file permissions
perms = ''
for who in 'USR', 'GRP', 'OTH':
for what in 'R', 'W', 'X':
if mode & getattr(stat, 'S_I' + what + who):
perms += what.lower()
else:
perms += '-'
info['ftype'] = ftype
info['perms'] = perms
info['color'] = color if use_colors else ''
info['endcolor'] = '\x1b[00m' if info['color'] else ''
print(('%(ftype)s%(perms)s %(uid)-8s %(gid)-8s %(size)8d %(date)s ' +
'%(color)s%(path)s%(endcolor)s') % info)
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