aer 0.2.0

A command-line toolkit for creatives.
Documentation 
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//! HTTP server for serving built assets.

use std::path::Path;

use axum::Router;
use axum::http::header::{CACHE_CONTROL, HeaderValue};
use tower_http::services::ServeDir;
use tower_http::set_header::SetResponseHeaderLayer;

/// Starts the HTTP server serving files from the target directory.
pub async fn start(port: u16, target: &Path) -> std::io::Result<()> {
    let serve_dir = ServeDir::new(target).append_index_html_on_directories(true);

    let app = Router::new()
        .fallback_service(serve_dir)
        // Discourage client-side caching of assets served from the local server.
        .layer(SetResponseHeaderLayer::overriding(
            CACHE_CONTROL,
            HeaderValue::from_static("no-cache, no-store, must-revalidate"),
        ));

    let addr = std::net::SocketAddr::from(([127, 0, 0, 1], port));
    let listener = tokio::net::TcpListener::bind(addr).await?;

    axum::serve(listener, app)
        .await
        .map_err(|e| std::io::Error::other(format!("server error: {}", e)))
}