common: dedup and move banner to common/logging (#2846)

mixnode/src/main.rs

@@ -6,7 +6,7 @@ extern crate rocket;
 
 use ::config::defaults::setup_env;
 use build_information::BinaryBuildInformation;
-use clap::{crate_version, Parser, ValueEnum};
+use clap::{crate_name, crate_version, Parser, ValueEnum};
 use lazy_static::lazy_static;
 use logging::setup_logging;
 
@@ -64,7 +64,7 @@ impl Cli {
 async fn main() {
     setup_logging();
     if atty::is(atty::Stream::Stdout) {
-        println!("{}", banner());
+        println!("{}", logging::banner(crate_name!(), crate_version!()));
     }
 
     let args = Cli::parse();
@@ -72,23 +72,6 @@ async fn main() {
     commands::execute(args).await;
 }
 
-fn banner() -> String {
-    format!(
-        r#"
-
-      _ __  _   _ _ __ ___
-     | '_ \| | | | '_ \ _ \
-     | | | | |_| | | | | | |
-     |_| |_|\__, |_| |_| |_|
-            |___/
-
-             (mixnode - version {:})
-
-    "#,
-        crate_version!()
-    )
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;