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#!/usr/bin/env python3
# Script to install base domain
#
# Copyright (C) 2021-2023 Andrew Cagney
#
# 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 2 of the License, or (at your
# option) any later version. See <https://www.gnu.org/licenses/gpl2.txt>.
#
# 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.
# Possibly useful reference:
# http://meta.libera.cc/2020/12/quick-netbsd-serial-console-install-on.html
import sys
import os
import sys
import pexpect
import re
import alpine
import debian
import fedora
import linux
import freebsd
import netbsd
import openbsd
args = sys.argv[1:]
# save param value pairs
class param:
None
while args[0] != "--":
key = args[0]
value = args[1]
print(key, value)
setattr(param, key, value)
args = args[2:]
# drop --
command = args[1:]
print("command", command)
#argv[0] is this script
OS = {
"alpine": alpine,
"debian": debian,
"fedora": fedora,
"freebsd": freebsd,
"linux": linux,
"netbsd": netbsd,
"openbsd": openbsd
}
for os in OS:
for attr in ["install_base", "FILTER_OUTPUT"]:
# will barf when missing
getattr(OS[os], attr)
os = OS[param.os]
# Strip output of any escape sequences. This does the stripping on
# the input side but seems to cause pexpect to hang. See
# https://web.archive.org/web/20200805075926/http://ascii-table.com/ansi-escape-sequences.php
class AsciiDecoder(object):
def __init__(self):
self.buf = b''
def encode(self, b, final=False):
return b
def decode(self, b, final=False):
self.buf = self.buf + b
i = self.buf.find(b'\n')
if i >= 0:
c = self.buf[0:i+1]
self.buf = self.buf[i+1:]
d = re.sub(rb'\x1b\[[0-9;=?]*[HfABCDsuJKmhlr]', b'*', c)
e = re.sub(rb'\x1b', b'<ESC>', d)
if e != e:
print(">", e, "<")
return e
return b''
# This strips things on the output side, problem is that it often
# doesn't see the full escape sequence so would get things wrong.
class Filter:
def __init__(self):
self.stream=sys.stdout.buffer
def write(self, record):
#print(record)
c = record
d = re.sub(rb'\x1b\[[0-9;=?]*[HfABCDsuJKmhlr]', b'', c)
# exclude all but 0x0a, 0x0d, ' '-DEL-1
e = re.sub(rb'[\x00-\x09\x0b-\x0c\x0e-\x1f\x7f-\xff]', b'', d)
self.stream.write(e);
def flush(self):
self.stream.flush()
class Raw:
def __init__(self):
self.stream=sys.stdout.buffer
def write(self, record):
self.stream.write(record);
def flush(self):
self.stream.flush()
if os.FILTER_OUTPUT:
logfile = Filter()
else:
logfile = Raw()
child = pexpect.spawn(command=command[0],
args=command[1:],
logfile=logfile,
echo=False)
os.install_base(child, param)
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