print app version

src/main.rs

@@ -3,6 +3,9 @@ use envconfig::Envconfig;
 use log::{debug, info, warn};
 use teloxide::{prelude::*, utils::command::BotCommand};
 
+const VERSION: &'static str = env!("GIT_REVISION");
+const BRANCH: &'static str = env!("GIT_BRANCH");
+
 #[tokio::main]
 async fn main() {
     debug!("starting the application");
@@ -32,6 +35,7 @@ async fn run() {
     env_logger::init();
 
     let settings = Settings::init_from_env().expect("reading config values");
+    let startup = std::sync::Arc::from(std::time::SystemTime::now());
 
     let bot = teloxide::Bot::builder()
         .token(&settings.telegram_token)
@@ -44,8 +48,10 @@ async fn run() {
         let cmd: Vec<&str> = cmd.split(" ").collect();
         let console_cmd = cmd.get(0).expect("getting console command").to_string();
         let arg: String = cmd.get(1).unwrap_or_else(|| &"").to_string();
+        // let startup = std::sync::Arc::from(*startup);
+        let startup = *startup;
 
-        async move { handler(cx, command, climate, console_cmd, arg).await }
+        async move { handler(cx, command, climate, console_cmd, arg, startup).await }
     })
     .await;
 }
@@ -62,6 +68,7 @@ async fn handler(
     dsn: String,
     console_command: String,
     console_arg: String,
+    startup: std::time::SystemTime,
 ) -> ResponseResult<()> {
     let request_id = uuid::Uuid::new_v4();
 
@@ -73,7 +80,10 @@ async fn handler(
     match command {
         Command::Help => cx.answer(Command::descriptions()).send().await?,
         Command::HostTemperature => {
-            info!("querying command {} with arg {}", console_command, console_arg);
+            info!(
+                "querying command {} with arg {}",
+                console_command, console_arg
+            );
 
             let cmd = std::process::Command::new(&console_command)
                 .arg(&console_arg)
@@ -130,6 +140,15 @@ async fn handler(
             ))
             .await?
         }
+        Command::VersionRequest => {
+            cx.answer_str(format!(
+                "app version is {}@{}, uptime is {} second(-s)",
+                VERSION,
+                BRANCH,
+                startup.elapsed().unwrap().as_secs()
+            ))
+            .await?
+        }
     };
 
     Ok(())
@@ -144,4 +163,6 @@ enum Command {
     RoomTemperature,
     #[command(description = "temperature of raspberry.")]
     HostTemperature,
+    #[command(description = "prints current version.")]
+    VersionRequest,
 }