use rust template

.gitignore

@@ -1,10 +1 @@
-# Generated by Cargo
-# will have compiled files and executables
 /target/
-
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
-# These are backup files generated by rustfmt
-**/*.rs.bk

Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "daily-compprog"
+version = "0.1.0"
+edition = "2021"
+description = "My program! (TODO: Edit this description)"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+# General
+miette = "5"
+
+# Logging
+env_logger = "0.9"
+log = "0.4"
+
+# Tokio
+tokio = { version = "1", features = ["full"] }
+
+# Shutdown
+tokio-graceful-shutdown = "0.11.1"
+
+# Command line arguments
+clap = { version = "4.0", features = ["derive"] }

src/command_line.rs

@@ -0,0 +1,23 @@
+use clap::Parser;
+use env_logger::Env;
+
+#[derive(Parser)]
+#[clap(version, about, long_about = None)]
+pub struct Options {
+    /// Increase verbosity, and can be used multiple times
+    #[arg(short, long, action = clap::ArgAction::Count)]
+    pub verbose: u8,
+}
+
+pub fn parse() -> Options {
+    let opts = Options::parse();
+
+    let debug_level = match opts.verbose {
+        0 => "info",
+        1 => "debug",
+        _ => "trace",
+    };
+    env_logger::Builder::from_env(Env::default().default_filter_or(debug_level)).init();
+
+    opts
+}

src/dummy_task.rs

@@ -0,0 +1,10 @@
+use miette::Result;
+use tokio_graceful_shutdown::SubsystemHandle;
+
+pub async fn dummy_task(subsys: SubsystemHandle) -> Result<()> {
+    log::info!("dummy_task started.");
+    subsys.on_shutdown_requested().await;
+    log::info!("dummy_task stopped");
+
+    Ok(())
+}

src/main.rs

@@ -0,0 +1,20 @@
+mod command_line;
+mod dummy_task;
+
+use miette::Result;
+use tokio::time::Duration;
+use tokio_graceful_shutdown::Toplevel;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    // Query command line options and initialize logging
+    let _opts = command_line::parse();
+
+    // Initialize and run subsystems
+    Toplevel::new()
+        .start("dummy_task", dummy_task::dummy_task)
+        .catch_signals()
+        .handle_shutdown_requests(Duration::from_millis(1000))
+        .await
+        .map_err(Into::into)
+}