mirror of
https://github.com/morgan9e/systemd
synced 2026-04-14 00:14:32 +09:00
0e371ebb12
Some files were using that, others weren't. Since those are user-facing docs, we should use the nice clean form, not the workaround for strange systems that we use in other places.
42 lines
1.4 KiB
Python
Executable File
42 lines
1.4 KiB
Python
Executable File
#!/usr/bin/python
|
|
# SPDX-License-Identifier: MIT-0
|
|
|
|
"""
|
|
|
|
Proof-of-concept systemd environment generator that makes sure that bin dirs
|
|
are always after matching sbin dirs in the path.
|
|
(Changes /sbin:/bin:/foo/bar to /bin:/sbin:/foo/bar.)
|
|
|
|
This generator shows how to override the configuration possibly created by
|
|
earlier generators. It would be easier to write in bash, but let's have it
|
|
in Python just to prove that we can, and to serve as a template for more
|
|
interesting generators.
|
|
|
|
"""
|
|
|
|
import os
|
|
import pathlib
|
|
|
|
def rearrange_bin_sbin(path):
|
|
"""Make sure any pair of …/bin, …/sbin directories is in this order
|
|
|
|
>>> rearrange_bin_sbin('/bin:/sbin:/usr/sbin:/usr/bin')
|
|
'/bin:/sbin:/usr/bin:/usr/sbin'
|
|
"""
|
|
items = [pathlib.Path(p) for p in path.split(':')]
|
|
for i in range(len(items)):
|
|
if 'sbin' in items[i].parts:
|
|
ind = items[i].parts.index('sbin')
|
|
bin = pathlib.Path(*items[i].parts[:ind], 'bin', *items[i].parts[ind+1:])
|
|
if bin in items[i+1:]:
|
|
j = i + 1 + items[i+1:].index(bin)
|
|
items[i], items[j] = items[j], items[i]
|
|
return ':'.join(p.as_posix() for p in items)
|
|
|
|
if __name__ == '__main__':
|
|
path = os.environ['PATH'] # This should be always set.
|
|
# If it is not, we will just crash, which is OK too.
|
|
new = rearrange_bin_sbin(path)
|
|
if new != path:
|
|
print('PATH={}'.format(new))
|