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networkinterfaces: support source-directory statement

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ifupdown supports the "source-directory" statement that include the content of the specified directory.
See [1] for details.
Implement the statement to improve compatibility with ifupdown.

Fixes #191

[1] https://manpages.debian.org/buster/ifupdown/interfaces.5.en.html
This commit is contained in:
Peter Keresztes Schmidt
2021-09-11 22:26:08 +02:00
committed by Peter Keresztes Schmidt
parent b5bed16cbe
commit 0845cc57b2
1 changed files with 32 additions and 10 deletions
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42
ifupdown2/ifupdown/networkinterfaces.py
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@@ -7,11 +7,12 @@
# ifupdown network interfaces file parser
#
import re
import collections
import copy
import glob
import logging
import collections
import os
import re
try:
from ifupdown2.ifupdown.iface import *
@@ -176,6 +177,21 @@ class networkInterfaces():
'unable to read source line')
return 0
def process_source_directory(self, lines, cur_idx, lineno):
self.logger.debug('processing source-directory line ..\'%s\'' % lines[cur_idx])
sourced_directory = re.split(self._ws_split_regex, lines[cur_idx], 2)[1]
if sourced_directory:
folders = glob.glob(sourced_directory)
for folder in folders:
filenames = [file for file in os.listdir(folder) if re.match(r'^[a-zA-Z0-9_-]+$', file)]
for f in filenames:
self.read_file(os.path.join(folder, f))
else:
self._parse_error(self._currentfile, lineno,
'unable to read source-directory line')
return 0
def process_auto(self, lines, cur_idx, lineno):
auto_ifaces = re.split(self._ws_split_regex, lines[cur_idx])[1:]
if not auto_ifaces:
@@ -388,11 +404,14 @@ class networkInterfaces():
return lines_consumed # Return next index
network_elems = { 'source' : process_source,
'allow' : process_allow,
'auto' : process_auto,
'iface' : process_iface,
'vlan' : process_vlan}
network_elems = {
'source': process_source,
'source-directory': process_source_directory,
'allow': process_allow,
'auto': process_auto,
'iface': process_iface,
'vlan': process_vlan
}
def _is_keyword(self, str):
# The additional split here is for allow- keyword
@@ -401,9 +420,12 @@ class networkInterfaces():
return 1
return 0
def _get_keyword_func(self, str):
tmp_str = str.split('-')[0]
return self.network_elems.get(tmp_str)
def _get_keyword_func(self, str_):
tmp_str = str_.split('-')[0]
if tmp_str == "allow":
return self.network_elems.get(tmp_str)
else:
return self.network_elems.get(str_)
def get_allow_classes_for_iface(self, ifacename):
classes = []