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from __future__ import annotations
from dataclasses import dataclass, field
import json
import os
from pathlib import Path
from typing import Any, Mapping
DEFAULT_RUNTIME_DIR = "/run/user/100000"
DEFAULT_BUS_ADDRESS = "unix:path=/run/user/100000/dbus/user_bus_socket"
BUNDLED_BUILD_HELPER = (
Path(__file__).resolve().parent / "vendor" / "build_sailfishos.py"
)
@dataclass(frozen=True)
class DeviceConfig:
name: str
ssh_target: str
username: str = "defaultuser"
architecture: str = ""
release: str = ""
user_bus_runtime_dir: str = DEFAULT_RUNTIME_DIR
user_bus_address: str = DEFAULT_BUS_ADDRESS
def public_dict(self) -> dict[str, object]:
return {
"name": self.name,
"ssh_target": self.ssh_target,
"username": self.username,
"architecture": self.architecture,
"release": self.release,
"user_bus_runtime_dir": self.user_bus_runtime_dir,
"user_bus_address": self.user_bus_address,
}
@dataclass(frozen=True)
class PathConfig:
git_root: Path = Path.home() / "git"
obs_root: Path = Path.home() / "OBS"
ssh_config: Path = Path.home() / ".ssh" / "config"
build_sailfishos: Path = BUNDLED_BUILD_HELPER
local_sdk: Path | None = None
osc_api_alias: str = ""
def public_dict(self) -> dict[str, str | None]:
return {
"git_root": str(self.git_root),
"obs_root": str(self.obs_root),
"ssh_config": str(self.ssh_config),
"build_sailfishos": str(self.build_sailfishos),
"local_sdk": str(self.local_sdk) if self.local_sdk else None,
"osc_api_alias": self.osc_api_alias,
}
@dataclass(frozen=True)
class Config:
path: Path | None
default_device: str
devices: Mapping[str, DeviceConfig] = field(default_factory=dict)
paths: PathConfig = field(default_factory=PathConfig)
def device(self, name: str | None = None) -> DeviceConfig:
key = name or self.default_device
if key in self.devices:
return self.devices[key]
if name and "@" in name:
return DeviceConfig(name=name, ssh_target=name)
raise KeyError(f"unknown Sailfish device: {key}")
def public_dict(self) -> dict[str, Any]:
return {
"path": str(self.path) if self.path else None,
"default_device": self.default_device,
"devices": {
name: device.public_dict() for name, device in self.devices.items()
},
"paths": self.paths.public_dict(),
}
def default_config_path() -> Path:
if "SAILFISH_MCP_CONFIG" in os.environ:
return Path(os.environ["SAILFISH_MCP_CONFIG"]).expanduser()
return Path.home() / ".config" / "sailfish-devel-mcp" / "config.json"
def load_config(path: str | os.PathLike[str] | None = None) -> Config:
config_path = Path(path).expanduser() if path else default_config_path()
raw: dict[str, Any] = {}
if config_path.exists():
with config_path.open("r", encoding="utf-8") as handle:
loaded = json.load(handle)
if not isinstance(loaded, dict):
raise ValueError(f"{config_path} must contain a JSON object")
raw = loaded
devices = _load_devices(raw.get("devices", {}))
if not devices:
default_name = os.environ.get("SAILFISH_MCP_DEFAULT_DEVICE", "device")
devices = {
default_name: DeviceConfig(
name=default_name,
ssh_target=os.environ.get("SAILFISH_MCP_SSH_TARGET", "root@device"),
)
}
default_device = str(raw.get("default_device") or next(iter(devices)))
paths = _load_paths(raw.get("paths", {}))
return Config(
path=config_path if config_path.exists() else None,
default_device=default_device,
devices=devices,
paths=paths,
)
def _load_devices(raw_devices: Any) -> dict[str, DeviceConfig]:
if not isinstance(raw_devices, dict):
raise ValueError("devices must be a JSON object")
devices: dict[str, DeviceConfig] = {}
for name, value in raw_devices.items():
if isinstance(value, str):
value = {"ssh_target": value}
if not isinstance(value, dict):
raise ValueError(f"device {name!r} must be a string or object")
ssh_target = str(value.get("ssh_target") or name)
devices[str(name)] = DeviceConfig(
name=str(name),
ssh_target=ssh_target,
username=str(value.get("username") or "defaultuser"),
architecture=str(value.get("architecture") or ""),
release=str(value.get("release") or ""),
user_bus_runtime_dir=str(
value.get("user_bus_runtime_dir") or DEFAULT_RUNTIME_DIR
),
user_bus_address=str(value.get("user_bus_address") or DEFAULT_BUS_ADDRESS),
)
return devices
def _load_paths(raw_paths: Any) -> PathConfig:
if not isinstance(raw_paths, dict):
raise ValueError("paths must be a JSON object")
defaults = PathConfig()
raw_local_sdk = raw_paths.get("local_sdk") or os.environ.get("SAILFISH_MCP_LOCAL_SDK")
return PathConfig(
git_root=Path(
str(
raw_paths.get("git_root")
or os.environ.get("SAILFISH_MCP_GIT_ROOT")
or defaults.git_root
)
).expanduser(),
obs_root=Path(
str(
raw_paths.get("obs_root")
or os.environ.get("SAILFISH_MCP_OBS_ROOT")
or defaults.obs_root
)
).expanduser(),
ssh_config=Path(
str(
raw_paths.get("ssh_config")
or os.environ.get("SAILFISH_MCP_SSH_CONFIG")
or defaults.ssh_config
)
).expanduser(),
build_sailfishos=Path(
str(
raw_paths.get("build_sailfishos")
or os.environ.get("SAILFISH_MCP_BUILD_HELPER")
or defaults.build_sailfishos
)
).expanduser(),
local_sdk=Path(str(raw_local_sdk)).expanduser() if raw_local_sdk else None,
osc_api_alias=str(
raw_paths.get("osc_api_alias")
or os.environ.get("SAILFISH_MCP_OSC_API_ALIAS")
or defaults.osc_api_alias
),
)
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