ansible-later/testenv/lib/python2.7/site-packages/ansible/module_utils/common/process.py
2019-04-23 13:04:27 +02:00

44 lines
1.5 KiB
Python

# Copyright (c) 2018, Ansible Project
# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
from ansible.module_utils.common.file import is_executable
def get_bin_path(arg, required=False, opt_dirs=None):
'''
find system executable in PATH.
Optional arguments:
- required: if executable is not found and required is true it produces an Exception
- opt_dirs: optional list of directories to search in addition to PATH
if found return full path; otherwise return None
'''
opt_dirs = [] if opt_dirs is None else opt_dirs
sbin_paths = ['/sbin', '/usr/sbin', '/usr/local/sbin']
paths = []
for d in opt_dirs:
if d is not None and os.path.exists(d):
paths.append(d)
paths += os.environ.get('PATH', '').split(os.pathsep)
bin_path = None
# mangle PATH to include /sbin dirs
for p in sbin_paths:
if p not in paths and os.path.exists(p):
paths.append(p)
for d in paths:
if not d:
continue
path = os.path.join(d, arg)
if os.path.exists(path) and not os.path.isdir(path) and is_executable(path):
bin_path = path
break
if required and bin_path is None:
raise ValueError('Failed to find required executable %s in paths: %s' % (arg, os.pathsep.join(paths)))
return bin_path