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# This file is part of cloud-init. See LICENSE file for license information.
import shlex
from cloudinit import util
# On NetBSD, /etc/rc.conf comes with a if block:
# if [ -r /etc/defaults/rc.conf ]; then
# as a consequence, the file is not a regular key/value list
# anymore and we cannot use cloudinit.distros.parsers.sys_conf
# The module comes with a more naive parser, but is able to
# preserve these if blocks.
def _unquote(value):
if value[0] == value[-1] and value[0] in ['"', "'"]:
return value[1:-1]
return value
def get_rc_config_value(key, fn="/etc/rc.conf"):
key_prefix = "{}=".format(key)
for line in util.load_file(fn).splitlines():
if line.startswith(key_prefix):
value = line.replace(key_prefix, "")
return _unquote(value)
def set_rc_config_value(key, value, fn="/etc/rc.conf"):
lines = []
done = False
value = shlex.quote(value)
original_content = util.load_file(fn)
for line in original_content.splitlines():
if "=" in line:
k, v = line.split("=", 1)
if k == key:
v = value
done = True
lines.append("=".join([k, v]))
else:
lines.append(line)
if not done:
lines.append("=".join([key, value]))
new_content = "\n".join(lines) + "\n"
if new_content != original_content:
util.write_file(fn, new_content)