67 lines
2.2 KiB
Python
Executable File
67 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
"""
|
|
This file contains a few self-contained helper functions
|
|
"""
|
|
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
|
|
# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
|
|
|
|
import os
|
|
import shutil
|
|
import subprocess
|
|
import sys
|
|
|
|
def run(*args, **kwargs):
|
|
"""A small wrapper around subprocess.run"""
|
|
arguments = [str(arg) for arg in args]
|
|
|
|
if kwargs.pop('verbose', False):
|
|
print(arguments)
|
|
|
|
try:
|
|
return subprocess.run(arguments, check=True, **kwargs)
|
|
except subprocess.CalledProcessError:
|
|
print("Bootstrapping failed")
|
|
sys.exit(1)
|
|
|
|
def create_disk(image, disk_type, fs_type, size):
|
|
"""Create a disk image, with a filesystem on it"""
|
|
run('truncate', '-s', size, image)
|
|
# First find the device we will use, then actually use it
|
|
loop_dev = run('losetup', '-f', capture_output=True).stdout.decode().strip()
|
|
run('sudo', 'losetup', loop_dev, image)
|
|
# Create the partition
|
|
run('sudo', 'parted', '--script', image, 'mklabel', disk_type, 'mkpart',
|
|
'primary', 'ext4', '0%', '100%')
|
|
run('sudo', 'partprobe', loop_dev)
|
|
run('sudo', 'mkfs.' + fs_type, loop_dev + "p1")
|
|
return loop_dev
|
|
|
|
def mount(source, target, fs_type, options='', **kwargs):
|
|
"""Mount filesystem"""
|
|
run('sudo', 'mount', source, target, '-t', fs_type, '-o', options, **kwargs)
|
|
|
|
def umount(target, **kwargs):
|
|
"""Unmount filesystem"""
|
|
run('sudo', 'umount', target, **kwargs)
|
|
|
|
def copytree(src, dst, ignore=shutil.ignore_patterns('*.git*')):
|
|
"""Copy directory tree into another directory"""
|
|
file_name = os.path.basename(src)
|
|
shutil.copytree(src, os.path.join(dst, file_name), ignore=ignore)
|
|
|
|
def get_target(file_name):
|
|
"""Determine package installation directory"""
|
|
bname = os.path.basename(file_name)
|
|
|
|
# Remove file extension. This is not completely trivial because
|
|
# tar archives often come with double extensions.
|
|
first_ext = os.path.splitext(os.path.basename(bname))
|
|
second_ext = os.path.splitext(first_ext[0])
|
|
if second_ext[1] == '.tar':
|
|
bname = second_ext[0]
|
|
else:
|
|
bname = first_ext[0]
|
|
return bname
|