blend-inst/blend-inst
2023-05-08 18:24:11 +05:30

391 lines
13 KiB
Python
Executable file

#!/usr/bin/env python3
# Copyright (C) 2023 Rudra Saraswat
# Licensed under GPL-3.0.
# Error codes
# 1 - Partitioning error
# 3 - Username not allowed
import os
import sys
import json
import signal
import subprocess
if os.environ.get('TESTING_INST') == 'true':
testing = True
else:
testing = False
# State variables
mountpoints = []
########################################################################################
# Helper utils
def preexec():
signal.signal(signal.SIGHUP, signal.SIG_IGN)
signal.signal(signal.SIGINT, signal.SIG_IGN)
signal.signal(signal.SIGQUIT, signal.SIG_IGN)
def exec(cmd):
if testing:
print(' '.join(cmd))
else:
subprocess.call(cmd, shell=False, stdout=sys.stdout,
stderr=sys.stderr, preexec_fn=preexec)
def exec_chroot(cmd):
chroot_cmd = ['arch-chroot', '/mnt']
chroot_cmd += cmd
exec(chroot_cmd)
def enable_service(service):
exec_chroot(['systemctl', 'enable', service])
def enable_user_service(service):
exec_chroot(['systemctl', '--global', 'enable', service])
def mount(part, path):
exec(['mount', part, path])
def mkdir(path):
exec(['mkdir', '-p', path])
########################################################################################
# Filesystem
def format_and_mount(mountpoint, filesystem, blockdevice):
if filesystem == 'vfat':
exec(['mkfs.vfat', '-F32', blockdevice])
elif filesystem == 'bfs':
exec(['mkfs.bfs', blockdevice])
elif filesystem == 'cramfs':
exec(['mkfs.cramfs', blockdevice])
elif filesystem == 'ext3':
exec(['mkfs.ext3', blockdevice])
elif filesystem == 'fat':
exec(['mkfs.fat', blockdevice])
elif filesystem == 'msdos':
exec(['mkfs.msdos', blockdevice])
elif filesystem == 'xfs':
exec(['mkfs.xfs', blockdevice])
elif filesystem == 'btrfs':
exec(['mkfs.btrfs', '-f', blockdevice])
elif filesystem == 'ext2':
exec(['mkfs.ext2', blockdevice])
elif filesystem == 'ext4':
exec(['mkfs.ext4', blockdevice])
elif filesystem == 'minix':
exec(['mkfs.minix', blockdevice])
elif filesystem == 'f2fs':
exec(['mkfs.f2fs', blockdevice])
elif filesystem == 'don\'t format':
print(f'Not formatting {blockdevice}.')
elif filesystem == 'noformat':
print(f'Not formatting {blockdevice}.')
if mountpoint in mountpoints:
print()
print(
f'Invalid manual partitioning configuration. There are multiple partitions with the mount point {mountpoint}.')
sys.exit(1)
if mountpoint != 'none':
mkdir(mountpoint)
mountpoints.append(mountpoint)
mount(blockdevice, mountpoint)
def inst_partition(config):
try:
config['partition']
except:
return
device = config['partition']['device']
mode = config['partition']['mode']
efi = config['partition']['efi']
partitions = config['partition']['partitions']
# Delete partition table
exec(['dd', 'if=/dev/zero', f'of={device}', 'bs=512', 'count=1'])
exec(['sync'])
if mode == 'Auto':
if efi:
# Create GPT label
exec(['parted', '-s', device, 'mklabel', 'gpt'])
# Create EFI partition
exec(['parted', '-s', device, 'mkpart', 'fat32', '0', '500'])
else:
# Create msdos label
exec(['parted', '-s', device, 'mklabel', 'msdos'])
# Create boot partition
exec(['parted', '-s', device, 'mkpart',
'primary', 'ext4', '1MIB', '600MIB'])
# Create root partition
exec(['parted', '-s', device, 'mkpart',
'primary', 'ext4', '700MB', '100%'])
if 'nvme' in device or 'mmcblk' in device:
# Format EFI/boot partition
if efi:
exec(['mkfs.vfat', '-F32', f'{device}p1'])
else:
exec(['mkfs.ext4', f'{device}p1'])
# Format root partition
exec(['mkfs.ext4', f'{device}p2'])
# Mount partitions
mount(f'{device}p2', '/mnt')
if efi:
mkdir('/mnt/boot/efi')
mount(f'{device}p1', '/mnt/boot/efi')
else:
mkdir('/mnt/boot')
mount(f'{device}p1', '/mnt/boot')
else:
# Format EFI/boot partition
if efi:
exec(['mkfs.vfat', '-F32', f'{device}1'])
else:
exec(['mkfs.ext4', f'{device}1'])
# Format root partition
exec(['mkfs.ext4', f'{device}2'])
# Mount partitions
mount(f'{device}2', '/mnt')
if efi:
mkdir('/mnt/boot/efi')
mount(f'{device}1', '/mnt/boot/efi')
else:
mkdir('/mnt/boot')
mount(f'{device}1', '/mnt/boot')
else:
partitions.sort(key=lambda x: len(x[1]))
for p in partitions:
mountpoint = p.split(':')[0]
filesystem = p.split(':')[2]
blockdevice = p.split(':')[1]
format_and_mount(mountpoint, filesystem, blockdevice)
if '/mnt' not in mountpoints and '/mnt/' not in mountpoints:
print()
print('Invalid manual partitioning configuration. There must be a partition with its mount point as /.')
sys.exit(1)
########################################################################################
# Setup base
def inst_setup_base(config):
if testing == False:
airootfs_files = [os.path.join(dirpath, filename)
for (dirpath, dirs, files) in os.walk('/run/archiso')
for filename in (dirs + files)]
airootfs_sfs = 'none'
for f in airootfs_files:
if os.path.basename(f) == 'airootfs.sfs':
airootfs_sfs = f
break
if airootfs_sfs == 'none':
print("====================")
print("Failed installation.")
sys.exit(1)
exec(['unsquashfs', '-f', '-d', '/mnt',
airootfs_sfs])
else:
exec(['unsquashfs', '-f', '-d', '/mnt',
'/run/archiso/bootmnt/blend/x86_64/airootfs.sfs'])
# Enable system services
enable_service('bluetooth')
enable_service('cups')
# Enable blend-files
enable_user_service('blend-files')
# Add blend hook
exec_chroot(['bash', '-c', 'echo \'MODULES=""\' > /etc/mkinitcpio.conf'])
exec_chroot(['bash', '-c', 'echo \'BINARIES=""\' >> /etc/mkinitcpio.conf'])
exec_chroot(['bash', '-c', 'echo \'FILES=""\' >> /etc/mkinitcpio.conf'])
exec_chroot(['bash', '-c', 'echo \'HOOKS="base udev akshara plymouth autodetect modconf block keyboard keymap consolefont filesystems fsck"\' >> /etc/mkinitcpio.conf'])
exec_chroot(
['bash', '-c', 'echo \'COMPRESSION="zstd"\' >> /etc/mkinitcpio.conf'])
# Generate fstab
exec(['bash', '-c', 'genfstab -U /mnt > /mnt/etc/fstab'])
# Refresh package lists, pacman-key --init
exec_chroot(['pacman-key', '--init'])
exec_chroot(['pacman-key', '--populate', 'archlinux', 'blend'])
# Copy kernel
if testing == False:
airootfs_files = [os.path.join(dirpath, filename)
for (dirpath, dirs, files) in os.walk('/run/archiso')
for filename in (dirs + files)]
airootfs_kernel = 'none'
airootfs_initramfs = 'none'
airootfs_amd_ucode = 'none'
airootfs_intel_ucode = 'none'
for f in airootfs_files:
if os.path.basename(f) == 'vmlinuz-linux-zen':
airootfs_kernel = f
elif os.path.basename(f) == 'initramfs-linux-zen.img':
airootfs_initramfs = f
elif os.path.basename(f) == 'amd-ucode.img':
airootfs_amd_ucode = f
elif os.path.basename(f) == 'intel-ucode.img':
airootfs_intel_ucode = f
if 'none' in (airootfs_kernel, airootfs_initramfs, airootfs_amd_ucode, airootfs_intel_ucode):
print("====================")
print("Failed installation.")
sys.exit(1)
exec(['cp', airootfs_kernel, airootfs_initramfs,
airootfs_amd_ucode, airootfs_intel_ucode, '/mnt/boot'])
else:
exec(['cp', 'airootfs_kernel', 'airootfs_initramfs',
'airootfs_amd_ucode', 'airootfs_intel_ucode', '/mnt/boot'])
# Remove jade-gui and blend-inst
exec_chroot(['pacman', '-Rn', '--noconfirm', 'jade-gui', 'blend-inst-git'])
def inst_bootloader(config):
# Install bootloader
if 'NVIDIA' in subprocess.check_output(['lspci']).decode('utf-8'):
exec_chroot(
['bash', '-c', 'echo -e \'\\nGRUB_CMDLINE_LINUX_DEFAULT="${GRUB_CMDLINE_LINUX_DEFAULT} nvidia_drm.modeset=1 splash"\' >> /etc/default/grub'])
mkdir('/mnt/etc/udev/rules.d')
exec_chroot(['ln', '-s', '/dev/null',
'/etc/udev/rules.d/61-gdm.rules'])
else:
exec_chroot(
['bash', '-c', 'echo -e \'\\nGRUB_CMDLINE_LINUX_DEFAULT="${GRUB_CMDLINE_LINUX_DEFAULT} splash"\' >> /etc/default/grub'])
if config['bootloader']['type'] == 'grub-efi':
exec_chroot(['grub-install', '--target=x86_64-efi', f'--efi-directory={config["bootloader"]["location"]}',
'--bootloader-id=blend', '--removable'])
exec_chroot(['grub-install', '--target=x86_64-efi', f'--efi-directory={config["bootloader"]["location"]}',
'--bootloader-id=blend'])
else:
exec_chroot(['grub-install', '--target=i386-pc',
config["bootloader"]["location"]])
# Generate grub.cfg
exec_chroot(['grub-mkconfig', '-o', '/boot/grub/grub.cfg'])
########################################################################################
# Locale
def inst_locale(config):
# Set locale
exec_chroot(['bash', '-c', 'echo \'en_US.UTF-8 UTF-8\' > /etc/locale.gen'])
first_locale = True
for locale in config['locale']['locale']:
if locale != 'en_US.UTF-8 UTF-8':
exec_chroot(
['bash', '-c', f'echo \'{locale}\' >> /etc/locale.gen'])
if first_locale:
exec_chroot(
['bash', '-c', f'echo \'LANG={locale.split()[0]}\' > /etc/locale.conf'])
first_locale = False
exec_chroot(['locale-gen'])
# Set keyboard layout
exec_chroot(
['bash', '-c', f'echo \'KEYMAP={config["locale"]["keymap"]}\' > /etc/vconsole.conf'])
# Set timezone
exec_chroot(
['ln', '-sf', f'/usr/share/zoneinfo/{config["locale"]["timezone"]}', '/etc/localtime'])
########################################################################################
# Networking
def inst_networking(config):
# Set hostname
exec_chroot(
['bash', '-c', f'echo \'{config["networking"]["hostname"]}\' > /etc/hostname'])
# Create hosts file
exec_chroot(['bash', '-c', 'echo \'127.0.0.1 localhost\' > /etc/hosts'])
if config['networking']['ipv6']:
# Enable ipv6
exec_chroot(['bash', '-c', 'echo \'::1 localhost\' > /etc/hosts'])
########################################################################################
# Users
def inst_users(config):
# Create sudoers
exec_chroot(['bash', '-c', 'userdel -r blend &>/dev/null'])
exec_chroot(
['bash', '-c', 'echo "root ALL=(ALL:ALL) ALL" > /etc/sudoers'])
exec_chroot(
['bash', '-c', 'echo "%wheel ALL=(ALL:ALL) ALL" >> /etc/sudoers'])
exec_chroot(
['bash', '-c', 'echo "Defaults pwfeedback" >> /etc/sudoers']
)
# Add users
for user in config['users']:
if user['name'] == 'blend':
print()
print('The username blend is not allowed.')
sys.exit(3)
exec_chroot(['useradd', '-m', '-s', '/bin/bash', user['name']])
exec_chroot(
['bash', '-c', f'echo \'{user["name"]}:{user["password"]}\' | chpasswd'])
exec_chroot(['usermod', '-aG', 'wheel', user['name']])
# Add AccountsService user file
mkdir('/mnt/var/lib/AccountsService/users')
exec_chroot(
['bash', '-c', f'echo "[User]" > /var/lib/AccountsService/users/{user["name"]}'])
exec_chroot(
['bash', '-c', f'echo "SystemAccount=false" >> /var/lib/AccountsService/users/{user["name"]}'])
# Update display manager configuration
exec_chroot(
['bash', '-c', 'echo "[Theme]" > /etc/sddm.conf.d/default.conf'])
exec_chroot(
['bash', '-c', 'echo "Current=breeze" >> /etc/sddm.conf.d/default.conf'])
exec_chroot(['rm', '-f', '/etc/gdm/custom.conf'])
########################################################################################
signal.signal(signal.SIGHUP, signal.SIG_IGN)
signal.signal(signal.SIGINT, signal.SIG_IGN)
signal.signal(signal.SIGQUIT, signal.SIG_IGN)
try:
if sys.argv[1] == 'config' and os.path.isfile(sys.argv[2]):
with open(sys.argv[2]) as config_file:
config = json.load(config_file)
inst_partition(config)
inst_setup_base(config)
inst_bootloader(config)
inst_locale(config)
inst_networking(config)
inst_users(config)
print()
print('========================')
print('Successful installation.')
sys.exit()
except IndexError:
pass