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# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import os
import re
import dataclasses
from . import env
# =====
@dataclasses.dataclass(frozen=True)
class Partition:
mount_path: str
root_path: str
user: str
# =====
def find_msd() -> Partition:
return _find_single("otgmsd")
def find_pst() -> Partition:
return _find_single("pst")
# =====
def _find_single(part_type: str) -> Partition:
parts = _find_partitions(part_type, True)
if len(parts) == 0:
raise RuntimeError(f"Can't find {part_type!r} mountpoint")
return parts[0]
def _find_partitions(part_type: str, single: bool) -> list[Partition]:
parts: list[Partition] = []
with open(f"{env.ETC_PREFIX}/etc/fstab") as file:
for line in file.read().split("\n"):
line = line.strip()
if line and not line.startswith("#"):
fields = line.split()
if len(fields) == 6:
options = dict(re.findall(r"X-kvmd\.%s-(root|user)(?:=([^,]+))?" % (part_type), fields[3]))
if options:
parts.append(Partition(
mount_path=os.path.normpath(fields[1]),
root_path=os.path.normpath(options.get("root", "") or fields[1]),
user=options.get("user", ""),
))
if single:
break
return parts
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