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# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# 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/>.
from stat import S_IXOTH, S_IFREG
from ranger.ext.iter_tools import unique
from os import listdir, environ, stat
from os.path import join
_cached_executables = None
def get_executables():
"""
Return all executable files in each of the given directories.
Looks in $PATH by default.
"""
global _cached_executables
if _cached_executables is None:
_cached_executables = sorted(get_executables_uncached())
return _cached_executables
def get_executables_uncached(*paths):
"""
Return all executable files in each of the given directories.
Looks in $PATH by default.
"""
if not paths:
try:
pathstring = environ['PATH']
except KeyError:
return ()
paths = unique(pathstring.split(':'))
executables = set()
for path in paths:
try:
content = listdir(path)
except:
continue
for item in content:
abspath = join(path, item)
try:
filestat = stat(abspath)
except:
continue
if filestat.st_mode & (S_IXOTH | S_IFREG):
executables.add(item)
return executables
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