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|
import archinstall
import re
import shutil
import logging
import asyncio
import os
from pathlib import Path
__version__ = 0.4
SUDOERS_FMT = "etc/sudoers.d/{user}"
class PackageClassifier:
def split(self, packages):
aur, std = [], []
for pkg in packages:
try:
if (
archinstall.lib.general.SysCommand(f"pacman -Ss {pkg}").exit_code
== 0
):
std.append(pkg)
else:
aur.append(pkg)
except archinstall.lib.exceptions.SysCallError:
aur.append(pkg)
return std, aur
class UserManager:
def __init__(self, user: str, mount_location: Path, installation):
self.user = user
self.mount_location = mount_location
self.installation = installation
self.user_created = False
def _run_chroot(self, command):
return self.installation.arch_chroot(command, run_as=self.user)
def _sudoers(self):
return self.mount_location / f"etc/sudoers.d/{self.user}"
def _home(self):
return self.mount_location / f"home/{self.user}"
def create(self):
if self.user_created:
return
archinstall.lib.output.log(
f"Creating temporary user {self.user}", level=logging.INFO
)
self.installation.add_additional_packages(["fakeroot", "base-devel"])
self._sudoers().write_text(f"{self.user} ALL=(ALL:ALL) NOPASSWD: ALL\n")
password = archinstall.lib.models.users.Password(plaintext="somethingrandom")
user = archinstall.lib.models.users.User(
username=self.user, password=password, groups=[], sudo=False
)
self.installation.create_users([user])
self._home().mkdir(parents=True, exist_ok=True)
self.installation.arch_chroot(
f"/usr/bin/chown {self.user}:{self.user} /home/{self.user}"
)
self.user_created = True
def cleanup(self):
if not self.user_created:
return
archinstall.lib.output.log(f"Cleaning up user {self.user}", level=logging.INFO)
try:
self._run_chroot("/usr/bin/gpgconf --kill gpg-agent")
self._run_chroot(f"/usr/bin/killall -u {self.user}")
except archinstall.lib.exceptions.SysCallError:
pass
self.installation.arch_chroot(f"/usr/bin/userdel {self.user}")
shutil.rmtree(self._home(), ignore_errors=True)
self._sudoers.unlink(missing_ok=True)
self.user_created = False
class PackageDownloader:
def __init__(self, user: str, mount_location: Path, installation):
self.user = user
self.mount_location = mount_location
self.downloaded = []
self.installation = installation
def _run(self, command):
return self.installation.arch_chroot(command, run_as=self.user)
async def _download_package(self, package: str):
package_file = f"{package}.tar.gz"
url = f"https://aur.archlinux.org/cgit/aur.git/snapshot/{package_file}"
dest = f"/home/{self.user}/{package_file}"
try:
loop = asyncio.get_event_loop()
await loop.run_in_executor(
None, lambda: self._run(f"/usr/bin/curl {url} > {dest}")
)
self.downloaded.append(package)
except Exception as e:
archinstall.lib.output.log(
f"Failed to download {package}: {e}", level=logging.ERROR, fg="red"
)
async def download(self, packages):
archinstall.log(f"Downloading AUR packages: {packages}", level=logging.INFO)
semaphore = asyncio.Semaphore(3)
async def sem_task(pkg):
async with semaphore:
await self._download_package(pkg)
await asyncio.gather(*(sem_task(pkg) for pkg in packages))
class PackageInstaller:
def __init__(self, user: str, mount_location: Path, installation):
self.user = user
self.mount_location = mount_location
self.installation = installation
self.installed = []
self.installed_dirs = []
def _run(self, command):
return self.installation.arch_chroot(command, run_as=self.user)
def _untar(self, package: str):
self._run(
f"/usr/bin/tar --directory /home/{self.user}/ -xvzf /home/{self.user}/{package}.tar.gz"
)
def install(self, package: str):
self._untar(package)
build_dir = self.mount_location / "home" / self.user / package
try:
with (build_dir / "PKGBUILD").open() as fh:
content = fh.read()
gpgkeys = re.findall(r"validpgpkeys=\((.*)\)", content)
for key in gpgkeys:
key = key.strip("'\" ")
self._run(f"/usr/bin/gpg --recv-keys {key}")
except FileNotFoundError:
archinstall.lib.output.log(
f"Missing PKGBUILD for {package}", level=logging.ERROR, fg="red"
)
return
cmd = (
f"cd /home/{self.user}/{package} && makepkg --force --noconfirm --needed -si"
)
result = self._run(f'/bin/bash -c "{cmd}"')
if result.exit_code != 0:
archinstall.lib.output.log(
f"Build failed for {package}", level=logging.ERROR, fg="red"
)
return
self.installed_dirs.append(build_dir)
class Plugin:
def __init__(self):
self.user = os.getenv("AUR_USER", "packagebuilder")
self.lazy_initd = False
def _lazy_init(self):
self.installation = archinstall.lib.storage.storage["session"]
self.classifier = PackageClassifier()
self.mount_location = Path(self.installation.target)
self.usermgr = UserManager(self.user, self.mount_location, self.installation)
self.downloader = PackageDownloader(
self.user, self.mount_location, self.installation
)
self.installer = PackageInstaller(
self.user, self.mount_location, self.installation
)
self.lazy_initd = True
def on_pacstrap(self, packages: list[str]) -> list[str]:
if not self.lazy_initd:
self._lazy_init()
std, aur = self.classifier.split(packages)
if not aur:
return std
self.usermgr.create()
asyncio.run(self.downloader.download(aur))
for pkg in self.downloader.downloaded:
self.installer.install(pkg)
self.usermgr.cleanup()
return std
|
