97 lines
2.4 KiB
Rust
97 lines
2.4 KiB
Rust
use std::sync::mpsc;
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use clap::Parser;
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use nuchat::Config;
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use nuchat::app;
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use tokio::net::TcpListener;
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use tokio::signal;
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use tracing::info;
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use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
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#[derive(Parser, Debug)]
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#[command(version, about, long_about = None)]
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struct Args {
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/// Port to run server on
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#[arg(long, default_value_t = 7000)]
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port: u32,
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/// Host to run server on
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#[arg(long, default_value = "127.0.0.1")]
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host: String,
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/// Admin secret to use, leave blank to disable
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#[arg(long)]
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admin_secret: Option<String>,
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}
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#[tokio::main]
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async fn main() {
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let args = Args::parse();
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let config = BinConfig::from_args(args);
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tracing_subscriber::registry()
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.with(
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tracing_subscriber::EnvFilter::try_from_default_env().unwrap_or_else(|_| {
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format!("{}=debug,tower_http=debug", env!("CARGO_CRATE_NAME")).into()
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}),
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)
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.with(tracing_subscriber::fmt::layer().with_target(false))
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.init();
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let listener = TcpListener::bind(format!("{}:{}", config.0.host, config.0.port))
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.await
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.unwrap();
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tracing::debug!("listening on {}", listener.local_addr().unwrap());
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let (app, rx) = app(&config.0);
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axum::serve(listener, app)
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.with_graceful_shutdown(shutdown_signal(rx))
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.await
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.unwrap();
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info!("Server stopped");
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}
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#[allow(clippy::unused_async)]
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#[allow(unused)]
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async fn await_shutdown(rx: mpsc::Receiver<bool>) -> Result<bool, mpsc::RecvError> {
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rx.recv()
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}
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async fn shutdown_signal(rx: mpsc::Receiver<bool>) {
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let endpoint = tokio::spawn(async move { rx.recv() }).into_future();
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let ctrl_c = async {
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signal::ctrl_c()
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.await
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.expect("failed to install Ctrl+C handler");
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};
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#[cfg(unix)]
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let terminate = async {
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signal::unix::signal(signal::unix::SignalKind::terminate())
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.expect("failed to install signal handler")
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.recv()
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.await;
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};
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#[cfg(not(unix))]
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let terminate = std::future::pending::<()>();
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tokio::select! {
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() = ctrl_c => {},
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() = terminate => {},
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_ = endpoint => {},
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}
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info!("Shutting server down gracefully...");
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}
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struct BinConfig(Config);
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impl BinConfig {
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fn from_args(args: Args) -> Self {
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Self(Config {
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port: args.port,
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host: args.host,
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admin_secret: args.admin_secret,
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})
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}
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}
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