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"""Command-line entry point for the NACC node server.
Currently a stub that just prints configuration info; to be extended with
actual MCP server startup logic.
"""
from __future__ import annotations
import argparse
import json
from pathlib import Path
import sys
from .filesystem import list_files
from .config import load_node_config
from .tools import NodeServer
def _build_parser() -> argparse.ArgumentParser:
parser = argparse.ArgumentParser(description="NACC node MCP server")
subparsers = parser.add_subparsers(dest="command")
serve = subparsers.add_parser("serve", help="Start the MCP node server")
serve.add_argument("--host", default="0.0.0.0", help="Host/IP to bind (default 0.0.0.0)")
serve.add_argument("--port", type=int, default=8765, help="Port to listen on")
serve.add_argument(
"--config",
type=str,
default="node-config.yml",
help="Path to node configuration file",
)
serve.add_argument(
"--dry-run",
action="store_true",
help="Validate configuration and exit without starting the server",
)
init_parser = subparsers.add_parser("init", help="Initialize a new node and generate pairing code")
list_parser = subparsers.add_parser("list-files", help="List files on this node")
list_parser.add_argument("--path", default=".", help="Path to inspect")
list_parser.add_argument(
"--recursive",
action="store_true",
help="Recurse into subdirectories",
)
list_parser.add_argument(
"--filter",
dest="pattern",
default=None,
help="Glob filter applied to relative paths",
)
list_parser.add_argument(
"--with-hash",
action="store_true",
help="Compute sha256 for files (slower)",
)
list_parser.add_argument(
"--config",
type=str,
default=None,
help="Optional node-config file to scope the path to the node root",
)
return parser
def main(argv: list[str] | None = None) -> None:
parser = _build_parser()
parsed_args = list(argv) if argv is not None else sys.argv[1:]
if not parsed_args or parsed_args[0].startswith("-"):
parsed_args = ["serve", *parsed_args]
args = parser.parse_args(parsed_args)
if args.command == "list-files":
root_override: Path | None = None
target_path = Path(args.path)
if args.config:
config = load_node_config(args.config)
root_override = config.root_dir
if not target_path.is_absolute():
target_path = (root_override / target_path).resolve()
files = list_files(
target_path,
recursive=args.recursive,
pattern=args.pattern,
include_hash=args.with_hash,
root=str(root_override) if root_override else None,
)
payload = {"files": [file.to_dict() for file in files], "count": len(files)}
print(json.dumps(payload, indent=2))
return
if args.command == "init":
import uuid
from .pairing import create_session
# Generate defaults
node_id = str(uuid.uuid4())
root_dir = Path.cwd().resolve()
# Create config structure
config_data = {
"node_id": node_id,
"root_dir": str(root_dir),
"display_name": f"Node-{node_id[:8]}",
"tags": ["generic"],
"allowed_commands": ["python", "ls", "cat", "echo", "grep"],
"sync_targets": {}
}
# Generate pairing code
session = create_session(node_id)
# Save config
output_path = Path("node-config.yml")
if output_path.exists():
print(f"Config file {output_path} already exists. Skipping creation.")
else:
import yaml
with open(output_path, "w") as f:
yaml.dump(config_data, f)
print(f"Created {output_path}")
print("\n" + "="*40)
print(f"🚀 Node Initialized: {config_data['display_name']}")
print(f"🆔 Node ID: {node_id}")
print(f"🔑 PAIRING CODE: {session.code}")
print("="*40)
print("\nRun this on your orchestrator to pair:")
print(f" nacc-orchestrator register-node {session.code} --ip <THIS_NODE_IP>")
print("\n(Note: The code is for display only in this version. Use the ID/IP for manual registration if needed.)")
return
if args.command in (None, "serve"):
config_path = getattr(args, "config", "node-config.yml")
config = load_node_config(config_path)
if getattr(args, "dry_run", False):
summary = {
"node_id": config.node_id,
"root_dir": str(config.root_dir),
"tags": config.tags,
"allowed_commands": config.allowed_commands,
"sync_targets": {key: str(value) for key, value in config.sync_targets.items()},
}
print(json.dumps(summary, indent=2))
return
host = getattr(args, "host", "0.0.0.0")
port = getattr(args, "port", 8765)
server = NodeServer(config, host=host, port=port)
try:
server.serve_forever()
except KeyboardInterrupt: # pragma: no cover - manual interrupt
print("\n[nacc-node] shutdown requested")
server.shutdown()
return
parser.error(f"Unknown command: {args.command}")
if __name__ == "__main__": # pragma: no cover
main()
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