86 lines
3.0 KiB
Python
86 lines
3.0 KiB
Python
# Copyright 2022 Oliver Smith
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
import os
|
|
import shutil
|
|
|
|
import pmb.config
|
|
import pmb.chroot
|
|
import pmb.chroot.binfmt
|
|
import pmb.helpers.run
|
|
import pmb.helpers.run_core
|
|
|
|
|
|
def executables_absolute_path():
|
|
"""
|
|
Get the absolute paths to the sh and chroot executables.
|
|
"""
|
|
ret = {}
|
|
for binary in ["sh", "chroot"]:
|
|
path = shutil.which(binary, path=pmb.config.chroot_host_path)
|
|
if not path:
|
|
raise RuntimeError(f"Could not find the '{binary}'"
|
|
" executable. Make sure that it is in"
|
|
" your current user's PATH.")
|
|
ret[binary] = path
|
|
return ret
|
|
|
|
|
|
def root(args, cmd, suffix="native", working_dir="/", output="log",
|
|
output_return=False, check=None, env={}, auto_init=True,
|
|
disable_timeout=False):
|
|
"""
|
|
Run a command inside a chroot as root.
|
|
|
|
:param env: dict of environment variables to be passed to the command, e.g.
|
|
{"JOBS": "5"}
|
|
:param auto_init: automatically initialize the chroot
|
|
|
|
See pmb.helpers.run_core.core() for a detailed description of all other
|
|
arguments and the return value.
|
|
"""
|
|
# Initialize chroot
|
|
chroot = f"{args.work}/chroot_{suffix}"
|
|
if not auto_init and not os.path.islink(f"{chroot}/bin/sh"):
|
|
raise RuntimeError(f"Chroot does not exist: {chroot}")
|
|
if auto_init:
|
|
pmb.chroot.init(args, suffix)
|
|
|
|
# Readable log message (without all the escaping)
|
|
msg = f"({suffix}) % "
|
|
for key, value in env.items():
|
|
msg += f"{key}={value} "
|
|
if working_dir != "/":
|
|
msg += f"cd {working_dir}; "
|
|
msg += " ".join(cmd)
|
|
|
|
# Merge env with defaults into env_all
|
|
env_all = {"CHARSET": "UTF-8",
|
|
"HISTFILE": "~/.ash_history",
|
|
"HOME": "/root",
|
|
"LANG": "UTF-8",
|
|
"PATH": pmb.config.chroot_path,
|
|
"PYTHONUNBUFFERED": "1",
|
|
"SHELL": "/bin/ash",
|
|
"TERM": "xterm"}
|
|
for key, value in env.items():
|
|
env_all[key] = value
|
|
|
|
# Preserve proxy environment variables
|
|
for var in ["FTP_PROXY", "ftp_proxy", "HTTP_PROXY", "http_proxy",
|
|
"HTTPS_PROXY", "https_proxy", "HTTP_PROXY_AUTH"]:
|
|
if var in os.environ:
|
|
env_all[var] = os.environ[var]
|
|
|
|
# Build the command in steps and run it, e.g.:
|
|
# cmd: ["echo", "test"]
|
|
# cmd_chroot: ["/sbin/chroot", "/..._native", "/bin/sh", "-c", "echo test"]
|
|
# cmd_sudo: ["sudo", "env", "-i", "sh", "-c", "PATH=... /sbin/chroot ..."]
|
|
executables = executables_absolute_path()
|
|
cmd_chroot = [executables["chroot"], chroot, "/bin/sh", "-c",
|
|
pmb.helpers.run.flat_cmd(cmd, working_dir)]
|
|
cmd_sudo = [pmb.config.sudo, "env", "-i", executables["sh"], "-c",
|
|
pmb.helpers.run.flat_cmd(cmd_chroot, env=env_all)]
|
|
return pmb.helpers.run_core.core(args, msg, cmd_sudo, None, output,
|
|
output_return, check, True,
|
|
disable_timeout)
|