add and fix up comments

src/apps.rs

@@ -12,13 +12,15 @@ use crate::app::App;
 use crate::proc::Proc;
 use crate::result::Result;
 
+/// List of apps to start and monitor
 #[derive(Debug, Deserialize)]
 pub struct Apps {
+	/// List of apps to start and monitor
 	pub app: Vec<App>,
 }
 
 impl Apps {
-	/// load apps from toml file
+	/// Load apps from toml file
 	pub fn load(p: PathBuf) -> Result<Self> {
 		let path: String = p.display().to_string();
 
@@ -46,6 +48,7 @@ impl Apps {
 		}
 	}
 
+	/// Get a list of the apps as a `Vec<App>`
 	pub fn apps(&self) -> Vec<App> {
 		self.app.clone()
 	}

src/main.rs

@@ -17,16 +17,20 @@ use result::Result;
 use run::run;
 
 fn main() {
+	// config comes from command line arguments
 	let config = Config::from_args();
 
+	// logger must be initialized because we use it a bunch
 	if let Err(e) = logger::setup(config.log_file, config.log_level) {
 		println!("FATAL: Error initializing logger: {:?}", e);
 		std::process::exit(1);
 	}
 
+	// apps_file is where the applications to start are configured
 	let mut apps_file = config.config_directory.clone();
 	apps_file.push("apps.toml");
 
+	// start the apps
 	match startup(apps_file) {
 		Ok(p) => {
 			info!("shutting down");
@@ -41,9 +45,15 @@ fn main() {
 	};
 }
 
+/// Load the apps file and start the apps
 fn startup(apps_file: PathBuf) -> Result<Vec<Proc>> {
 	let apps = Apps::load(apps_file)?;
+
+	// start all the apps
 	let (procs, holds, poll) = apps.start();
+
+	// wait for events
 	let procs = run(procs, holds, poll)?;
+
 	Ok(procs)
 }