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from __future__ import annotations
import pathlib
import glob
import logging
from typing import Union, Dict, TYPE_CHECKING
# https://stackoverflow.com/a/39757388/929999
if TYPE_CHECKING:
from ...installer import Installer
from .btrfs_helpers import (
subvolume_info_from_path as subvolume_info_from_path,
find_parent_subvolume as find_parent_subvolume,
setup_subvolumes as setup_subvolumes,
mount_subvolume as mount_subvolume
)
from .btrfssubvolumeinfo import BtrfsSubvolumeInfo as BtrfsSubvolume
from .btrfspartition import BTRFSPartition as BTRFSPartition
from ...exceptions import DiskError, Deprecated
from ...general import SysCommand
from ...output import log
def create_subvolume(installation: Installer, subvolume_location :Union[pathlib.Path, str]) -> bool:
"""
This function uses btrfs to create a subvolume.
@installation: archinstall.Installer instance
@subvolume_location: a localized string or path inside the installation / or /boot for instance without specifying /mnt/boot
"""
installation_mountpoint = installation.target
if type(installation_mountpoint) == str:
installation_mountpoint = pathlib.Path(installation_mountpoint)
# Set up the required physical structure
if type(subvolume_location) == str:
subvolume_location = pathlib.Path(subvolume_location)
target = installation_mountpoint / subvolume_location.relative_to(subvolume_location.anchor)
# Difference from mount_subvolume:
# We only check if the parent exists, since we'll run in to "target path already exists" otherwise
if not target.parent.exists():
target.parent.mkdir(parents=True)
if glob.glob(str(target / '*')):
raise DiskError(f"Cannot create subvolume at {target} because it contains data (non-empty folder target)")
# Remove the target if it exists
if target.exists():
target.rmdir()
log(f"Creating a subvolume on {target}", level=logging.INFO)
if (cmd := SysCommand(f"btrfs subvolume create {target}")).exit_code != 0:
raise DiskError(f"Could not create a subvolume at {target}: {cmd}")
def manage_btrfs_subvolumes(installation :Installer, partition :Dict[str, str]) -> list:
raise Deprecated("Use setup_subvolumes() instead.")
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