Use `log` crate & macros instead of prints.

Cargo.lock

@@ -1718,6 +1718,7 @@ dependencies = [
  "http 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.13.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "odds 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.2.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -13,6 +13,7 @@ futures3 = { package = "futures-preview", version="0.3.0-alpha", features = ["co
 http = "^0.1.18"
 hyper = "^0.12.35"
 hyper13 = { package = "hyper", version="0.13.0-alpha.4", features = ["unstable-stream"] }
+log = "^0.4.8"
 matches = "^0.1.8"
 odds = { version = "^0.3.1", features = ["std-vec"] }
 tokio2 = { package = "tokio", version="0.2.0-alpha.6" }

src/commands/relay.rs

@@ -76,7 +76,7 @@ fn post_stream(channel: Handle, stream: impl Stream<Item = impl Buf, Error = war
     .into_stream()
     .map(|_| empty())
     .map_err(|err| {
-        println!("[Warning] {}", err);
+        warn!("{}", err);
         err
     })
     .flatten()
@@ -114,19 +114,19 @@ pub fn run(args: &ArgMatches) -> Result<(), WebmetroError> {
 
     let head = channel.clone().and(warp::head())
         .map(|(_, name)| {
-            println!("[Info] HEAD Request For Channel {}", name);
+            info!("HEAD Request For Channel {}", name);
             media_response(Body::empty())
         });
 
     let get = channel.clone().and(warp::get2())
         .map(|(channel, name)| {
-            println!("[Info] Listener Connected On Channel {}", name);
+            info!("Listener Connected On Channel {}", name);
             media_response(Body::wrap_stream(get_stream(channel)))
         });
 
     let post_put = channel.clone().and(warp::post2().or(warp::put2()).unify())
         .and(warp::body::stream()).map(|(channel, name), stream| {
-            println!("[Info] Source Connected On Channel {}", name);
+            info!("Source Connected On Channel {}", name);
             Response::new(Body::wrap_stream(post_stream(channel, stream)))
         });
 

src/commands/send.rs

@@ -51,7 +51,7 @@ pub fn run(args: &ArgMatches) -> Result<(), WebmetroError> {
     let chunk_stream = chunk_stream
         .map_ok(|webm_chunk| webm_chunk.into_bytes())
         .map_err(|err| {
-            eprintln!("{}", &err);
+            warn!("{}", &err);
             err
         });
 

src/main.rs

@@ -1,4 +1,6 @@
 
+#[macro_use] extern crate log;
+
 mod commands;
 
 use clap::{App, AppSettings, crate_version};
@@ -36,6 +38,6 @@ fn main() {
             Ok(())
         }
     }.unwrap_or_else(|err| {
-        eprintln!("Error: {}", err);
+        error!("{}", err);
     });
 }