Files
dioxus/src/server/mod.rs
T

337 lines
12 KiB
Rust

use axum::{
body::{Full, HttpBody},
extract::{ws::Message, Extension, TypedHeader, WebSocketUpgrade},
http::{Response, StatusCode},
response::IntoResponse,
routing::{get, get_service},
Router,
};
use notify::{RecommendedWatcher, Watcher};
use std::{path::PathBuf, sync::Arc};
use tower::ServiceBuilder;
use tower_http::services::fs::{ServeDir, ServeFileSystemResponseBody};
use crate::{builder, serve::Serve, CrateConfig, Result};
use tokio::sync::broadcast;
#[cfg(feature = "hot_reload")]
mod hot_reload;
#[cfg(feature = "hot_reload")]
use hot_reload::*;
struct WsReloadState {
update: broadcast::Sender<String>,
#[cfg(feature = "hot_reload")]
last_file_rebuild: Arc<Mutex<FileMap>>,
watcher_config: CrateConfig,
}
#[cfg(feature = "hot_reload")]
pub async fn startup(config: CrateConfig) -> Result<()> {
log::info!("🚀 Starting development server...");
let dist_path = config.out_dir.clone();
let (reload_tx, _) = broadcast::channel(100);
let last_file_rebuild = Arc::new(Mutex::new(FileMap::new(config.crate_dir.clone())));
let hot_reload_tx = broadcast::channel(100).0;
let hot_reload_state = Arc::new(HotReloadState {
messages: hot_reload_tx.clone(),
update: reload_tx.clone(),
last_file_rebuild: last_file_rebuild.clone(),
watcher_config: config.clone(),
});
let crate_dir = config.crate_dir.clone();
let ws_reload_state = Arc::new(WsReloadState {
update: reload_tx.clone(),
last_file_rebuild: last_file_rebuild.clone(),
watcher_config: config.clone(),
});
let mut last_update_time = chrono::Local::now().timestamp();
// file watcher: check file change
let allow_watch_path = config
.dioxus_config
.web
.watcher
.watch_path
.clone()
.unwrap_or_else(|| vec![PathBuf::from("src")]);
let mut watcher = RecommendedWatcher::new(move |evt: notify::Result<notify::Event>| {
if let Ok(evt) = evt {
for path in evt.paths {
let mut file = File::open(path.clone()).unwrap();
if path.extension().map(|p| p.to_str()).flatten() != Some("rs") {
continue;
}
let mut src = String::new();
file.read_to_string(&mut src).expect("Unable to read file");
if src.is_empty() {
continue;
}
// find changes to the rsx in the file
if let Ok(syntax) = syn::parse_file(&src) {
let mut last_file_rebuild = last_file_rebuild.lock().unwrap();
if let Some(old_str) = last_file_rebuild.map.get(&path) {
if let Ok(old) = syn::parse_file(&old_str) {
match find_rsx(&syntax, &old) {
DiffResult::CodeChanged => {
log::info!("reload required");
if chrono::Local::now().timestamp() > last_update_time {
let _ = reload_tx.send("reload".into());
last_update_time = chrono::Local::now().timestamp();
}
}
DiffResult::RsxChanged(changed) => {
log::info!("reloading rsx");
for (old, new) in changed.into_iter() {
if let Some(hr) = get_min_location(
&path.strip_prefix(&crate_dir).unwrap().to_path_buf(),
old.to_token_stream(),
) {
let rsx = new.to_string();
let _ = hot_reload_tx.send(SetRsxMessage {
location: hr,
new_text: rsx,
});
}
}
}
}
}
} else {
// if this is a new file, rebuild the project
*last_file_rebuild = FileMap::new(crate_dir.clone());
}
}
}
}
})
.unwrap();
for sub_path in allow_watch_path {
watcher
.watch(
&config.crate_dir.join(sub_path),
notify::RecursiveMode::Recursive,
)
.unwrap();
}
// start serve dev-server at 0.0.0.0:8080
let port = "8080";
log::info!("📡 Dev-Server is started at: http://127.0.0.1:{}/", port);
let file_service_config = config.clone();
let file_service = ServiceBuilder::new()
.and_then(
|response: Response<ServeFileSystemResponseBody>| async move {
let response = if file_service_config
.dioxus_config
.web
.watcher
.index_on_404
.unwrap_or(false)
&& response.status() == StatusCode::NOT_FOUND
{
let body = Full::from(
// TODO: Cache/memoize this.
std::fs::read_to_string(
file_service_config
.crate_dir
.join(file_service_config.out_dir)
.join("index.html"),
)
.ok()
.unwrap(),
)
.map_err(|err| match err {})
.boxed();
Response::builder()
.status(StatusCode::OK)
.body(body)
.unwrap()
} else {
response.map(|body| body.boxed())
};
Ok(response)
},
)
.service(ServeDir::new((&config.crate_dir).join(&dist_path)));
let router = Router::new()
.route("/_dioxus/ws", get(ws_handler))
.fallback(
get_service(file_service).handle_error(|error: std::io::Error| async move {
(
StatusCode::INTERNAL_SERVER_ERROR,
format!("Unhandled internal error: {}", error),
)
}),
);
let router = router
.route("/_dioxus/hot_reload", get(hot_reload_handler))
.layer(Extension(ws_reload_state))
.layer(Extension(hot_reload_state));
axum::Server::bind(&format!("0.0.0.0:{}", port).parse().unwrap())
.serve(router.into_make_service())
.await?;
Ok(())
}
#[cfg(not(feature = "hot_reload"))]
pub async fn startup(config: CrateConfig) -> Result<()> {
log::info!("🚀 Starting development server...");
let dist_path = config.out_dir.clone();
let (reload_tx, _) = broadcast::channel(100);
let ws_reload_state = Arc::new(WsReloadState {
update: reload_tx.clone(),
watcher_config: config.clone(),
});
let mut last_update_time = chrono::Local::now().timestamp();
// file watcher: check file change
let allow_watch_path = config
.dioxus_config
.web
.watcher
.watch_path
.clone()
.unwrap_or_else(|| vec![PathBuf::from("src")]);
let mut watcher = RecommendedWatcher::new(move |_: notify::Result<notify::Event>| {
log::info!("reload required");
if chrono::Local::now().timestamp() > last_update_time {
let _ = reload_tx.send("reload".into());
last_update_time = chrono::Local::now().timestamp();
}
})
.unwrap();
for sub_path in allow_watch_path {
watcher
.watch(
&config.crate_dir.join(sub_path),
notify::RecursiveMode::Recursive,
)
.unwrap();
}
// start serve dev-server at 0.0.0.0:8080
let port = "8080";
log::info!("📡 Dev-Server is started at: http://127.0.0.1:{}/", port);
let file_service_config = config.clone();
let file_service = ServiceBuilder::new()
.and_then(
|response: Response<ServeFileSystemResponseBody>| async move {
let response = if file_service_config
.dioxus_config
.web
.watcher
.index_on_404
.unwrap_or(false)
&& response.status() == StatusCode::NOT_FOUND
{
let body = Full::from(
// TODO: Cache/memoize this.
std::fs::read_to_string(
file_service_config
.crate_dir
.join(file_service_config.out_dir)
.join("index.html"),
)
.ok()
.unwrap(),
)
.map_err(|err| match err {})
.boxed();
Response::builder()
.status(StatusCode::OK)
.body(body)
.unwrap()
} else {
response.map(|body| body.boxed())
};
Ok(response)
},
)
.service(ServeDir::new((&config.crate_dir).join(&dist_path)));
let router = Router::new()
.route("/_dioxus/ws", get(ws_handler))
.fallback(
get_service(file_service).handle_error(|error: std::io::Error| async move {
(
StatusCode::INTERNAL_SERVER_ERROR,
format!("Unhandled internal error: {}", error),
)
}),
)
.layer(Extension(ws_reload_state));
axum::Server::bind(&format!("0.0.0.0:{}", port).parse().unwrap())
.serve(router.into_make_service())
.await?;
Ok(())
}
async fn ws_handler(
ws: WebSocketUpgrade,
_: Option<TypedHeader<headers::UserAgent>>,
Extension(state): Extension<Arc<WsReloadState>>,
) -> impl IntoResponse {
ws.on_upgrade(|mut socket| async move {
let mut rx = state.update.subscribe();
let reload_watcher = tokio::spawn(async move {
loop {
let v = rx.recv().await.unwrap();
if v == "reload" {
log::info!("Start to rebuild project...");
if builder::build(&state.watcher_config).is_ok() {
// change the websocket reload state to true;
// the page will auto-reload.
if state
.watcher_config
.dioxus_config
.web
.watcher
.reload_html
.unwrap_or(false)
{
let _ = Serve::regen_dev_page(&state.watcher_config);
}
#[cfg(feature = "hot_reload")]
{
let mut write = state.last_file_rebuild.lock().unwrap();
*write = FileMap::new(state.watcher_config.crate_dir.clone());
}
}
// ignore the error
if socket
.send(Message::Text(String::from("reload")))
.await
.is_err()
{
break;
}
}
}
});
reload_watcher.await.unwrap();
})
}