feat: add archive client foundation

src/archive_clients/cli.py

@@ -0,0 +1,40 @@
+"""Archive client command-line entry point."""
+
+from __future__ import annotations
+
+import argparse
+import asyncio
+import json
+import logging
+from pathlib import Path
+from typing import Sequence
+
+from archive_clients.config import ClientConfig
+from archive_clients.daemon import ArchiveClientDaemon
+from archive_clients.probes import probe_root
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(prog="archive-client")
+    parser.add_argument("--config", type=Path, required=True)
+    parser.add_argument("--mode", choices=("archive", "cache"))
+    parser.add_argument("--check-config", action="store_true")
+    arguments = parser.parse_args(argv)
+    logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(message)s")
+    config = ClientConfig.load(arguments.config, arguments.mode)
+    probes = [
+        probe_root(config.qbittorrent.local_root),
+        probe_root(config.syncthing.local_root),
+    ]
+    config.read_shared_token()
+    config.qbittorrent.read_password()
+    config.syncthing.read_api_key()
+    if arguments.check_config:
+        print(json.dumps({
+            "client_id": config.client_id,
+            "role": config.role,
+            "filesystems": [probe.__dict__ | {"root": str(probe.root)} for probe in probes],
+        }, sort_keys=True))
+        return 0
+    asyncio.run(ArchiveClientDaemon(config, probes).run())
+    return 0