cratedocs-mcp/src/bin/cratedocs.rs
2025-03-12 14:52:36 -07:00

102 lines
No EOL
3.2 KiB
Rust

use anyhow::Result;
use clap::{Parser, Subcommand};
use cratedocs_mcp::DocRouter;
use mcp_server::router::RouterService;
use mcp_server::{ByteTransport, Server};
use std::net::SocketAddr;
use tokio::io::{stdin, stdout};
use tracing_appender::rolling::{RollingFileAppender, Rotation};
use tracing_subscriber::{self, EnvFilter, layer::SubscriberExt, util::SubscriberInitExt};
#[derive(Parser)]
#[command(author, version, about, long_about = None)]
#[command(propagate_version = true)]
struct Cli {
#[command(subcommand)]
command: Commands,
}
#[derive(Subcommand)]
enum Commands {
/// Run the server in stdin/stdout mode
Stdio {
/// Enable debug logging
#[arg(short, long)]
debug: bool,
},
/// Run the server with HTTP/SSE interface
Http {
/// Address to bind the HTTP server to
#[arg(short, long, default_value = "127.0.0.1:8080")]
address: String,
/// Enable debug logging
#[arg(short, long)]
debug: bool,
},
}
#[tokio::main]
async fn main() -> Result<()> {
let cli = Cli::parse();
match cli.command {
Commands::Stdio { debug } => run_stdio_server(debug).await,
Commands::Http { address, debug } => run_http_server(address, debug).await,
}
}
async fn run_stdio_server(debug: bool) -> Result<()> {
// Set up file appender for logging
let file_appender = RollingFileAppender::new(Rotation::DAILY, "logs", "stdio-server.log");
// Initialize the tracing subscriber with file logging
let level = if debug { tracing::Level::DEBUG } else { tracing::Level::INFO };
tracing_subscriber::fmt()
.with_env_filter(EnvFilter::from_default_env().add_directive(level.into()))
.with_writer(file_appender)
.with_target(false)
.with_thread_ids(true)
.with_file(true)
.with_line_number(true)
.init();
tracing::info!("Starting MCP documentation server in STDIN/STDOUT mode");
// Create an instance of our documentation router
let router = RouterService(DocRouter::new());
// Create and run the server
let server = Server::new(router);
let transport = ByteTransport::new(stdin(), stdout());
tracing::info!("Documentation server initialized and ready to handle requests");
Ok(server.run(transport).await?)
}
async fn run_http_server(address: String, debug: bool) -> Result<()> {
// Setup tracing
let level = if debug { "debug" } else { "info" };
tracing_subscriber::registry()
.with(
tracing_subscriber::EnvFilter::try_from_default_env()
.unwrap_or_else(|_| format!("{},{}", level, env!("CARGO_CRATE_NAME")).into()),
)
.with(tracing_subscriber::fmt::layer())
.init();
// Parse socket address
let addr: SocketAddr = address.parse()?;
let listener = tokio::net::TcpListener::bind(addr).await?;
tracing::debug!("Rust Documentation Server listening on {}", listener.local_addr()?);
tracing::info!("Access the Rust Documentation Server at http://{}/sse", addr);
// Create app and run server
let app = cratedocs_mcp::server::http_sse_server::App::new();
axum::serve(listener, app.router()).await?;
Ok(())
}