mid coding commit

core/startos/src/bins/startd.rs

@@ -0,0 +1,187 @@
+use std::net::{Ipv6Addr, SocketAddr};
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
+
+use color_eyre::eyre::eyre;
+use futures::{FutureExt, TryFutureExt};
+use tokio::signal::unix::signal;
+use tracing::instrument;
+
+use crate::context::{DiagnosticContext, RpcContext};
+use crate::net::web_server::WebServer;
+use crate::shutdown::Shutdown;
+use crate::system::launch_metrics_task;
+use crate::util::logger::EmbassyLogger;
+use crate::{Error, ErrorKind, ResultExt};
+
+#[instrument(skip_all)]
+async fn inner_main(cfg_path: Option<PathBuf>) -> Result<Option<Shutdown>, Error> {
+    let (rpc_ctx, server, shutdown) = async {
+        let rpc_ctx = RpcContext::init(
+            cfg_path,
+            Arc::new(
+                tokio::fs::read_to_string("/media/embassy/config/disk.guid") // unique identifier for volume group - keeps track of the disk that goes with your embassy
+                    .await?
+                    .trim()
+                    .to_owned(),
+            ),
+        )
+        .await?;
+        crate::hostname::sync_hostname(&rpc_ctx.account.read().await.hostname).await?;
+        let server = WebServer::main(
+            SocketAddr::new(Ipv6Addr::UNSPECIFIED.into(), 80),
+            rpc_ctx.clone(),
+        )
+        .await?;
+
+        let mut shutdown_recv = rpc_ctx.shutdown.subscribe();
+
+        let sig_handler_ctx = rpc_ctx.clone();
+        let sig_handler = tokio::spawn(async move {
+            use tokio::signal::unix::SignalKind;
+            futures::future::select_all(
+                [
+                    SignalKind::interrupt(),
+                    SignalKind::quit(),
+                    SignalKind::terminate(),
+                ]
+                .iter()
+                .map(|s| {
+                    async move {
+                        signal(*s)
+                            .unwrap_or_else(|_| panic!("register {:?} handler", s))
+                            .recv()
+                            .await
+                    }
+                    .boxed()
+                }),
+            )
+            .await;
+            sig_handler_ctx
+                .shutdown
+                .send(None)
+                .map_err(|_| ())
+                .expect("send shutdown signal");
+        });
+
+        let metrics_ctx = rpc_ctx.clone();
+        let metrics_task = tokio::spawn(async move {
+            launch_metrics_task(&metrics_ctx.metrics_cache, || {
+                metrics_ctx.shutdown.subscribe()
+            })
+            .await
+        });
+
+        crate::sound::CHIME.play().await?;
+
+        metrics_task
+            .map_err(|e| {
+                Error::new(
+                    eyre!("{}", e).wrap_err("Metrics daemon panicked!"),
+                    ErrorKind::Unknown,
+                )
+            })
+            .map_ok(|_| tracing::debug!("Metrics daemon Shutdown"))
+            .await?;
+
+        let shutdown = shutdown_recv
+            .recv()
+            .await
+            .with_kind(crate::ErrorKind::Unknown)?;
+
+        sig_handler.abort();
+
+        Ok::<_, Error>((rpc_ctx, server, shutdown))
+    }
+    .await?;
+    server.shutdown().await;
+    rpc_ctx.shutdown().await?;
+
+    tracing::info!("RPC Context is dropped");
+
+    Ok(shutdown)
+}
+
+pub fn main() {
+    EmbassyLogger::init();
+
+    if !Path::new("/run/embassy/initialized").exists() {
+        super::start_init::main();
+        std::fs::write("/run/embassy/initialized", "").unwrap();
+    }
+
+    let matches = clap::App::new("startd")
+        .arg(
+            clap::Arg::with_name("config")
+                .short('c')
+                .long("config")
+                .takes_value(true),
+        )
+        .get_matches();
+
+    let cfg_path = matches.value_of("config").map(|p| Path::new(p).to_owned());
+
+    let res = {
+        let rt = tokio::runtime::Builder::new_multi_thread()
+            .enable_all()
+            .build()
+            .expect("failed to initialize runtime");
+        rt.block_on(async {
+            match inner_main(cfg_path.clone()).await {
+                Ok(a) => Ok(a),
+                Err(e) => {
+                    async {
+                        tracing::error!("{}", e.source);
+                        tracing::debug!("{:?}", e.source);
+                        crate::sound::BEETHOVEN.play().await?;
+                        let ctx = DiagnosticContext::init(
+                            cfg_path,
+                            if tokio::fs::metadata("/media/embassy/config/disk.guid")
+                                .await
+                                .is_ok()
+                            {
+                                Some(Arc::new(
+                                    tokio::fs::read_to_string("/media/embassy/config/disk.guid") // unique identifier for volume group - keeps track of the disk that goes with your embassy
+                                        .await?
+                                        .trim()
+                                        .to_owned(),
+                                ))
+                            } else {
+                                None
+                            },
+                            e,
+                        )
+                        .await?;
+
+                        let server = WebServer::diagnostic(
+                            SocketAddr::new(Ipv6Addr::UNSPECIFIED.into(), 80),
+                            ctx.clone(),
+                        )
+                        .await?;
+
+                        let mut shutdown = ctx.shutdown.subscribe();
+
+                        let shutdown =
+                            shutdown.recv().await.with_kind(crate::ErrorKind::Unknown)?;
+
+                        server.shutdown().await;
+
+                        Ok::<_, Error>(shutdown)
+                    }
+                    .await
+                }
+            }
+        })
+    };
+
+    match res {
+        Ok(None) => (),
+        Ok(Some(s)) => s.execute(),
+        Err(e) => {
+            eprintln!("{}", e.source);
+            tracing::debug!("{:?}", e.source);
+            drop(e.source);
+            std::process::exit(e.kind as i32)
+        }
+    }
+}