stdout: prettier formatting of proxy config

1 files changed, 24 insertions, 4 deletions

diff --git a/src/main.rs b/src/main.rs
index 43f3447..f84d973 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@
 extern crate anyhow;
 
 use log::*;
+use std::collections::BTreeMap;
 use std::sync::Arc;
 use std::time::Instant;
 
@@ -218,6 +219,8 @@ async fn dump_config_on_change(
 	mut rx_proxy_config: watch::Receiver<Arc<ProxyConfig>>,
 	mut must_exit: watch::Receiver<bool>,
 ) {
+	let mut old_cfg: Arc<ProxyConfig> = rx_proxy_config.borrow().clone();
+
 	while !*must_exit.borrow() {
 		select!(
 			c = rx_proxy_config.changed() => {
@@ -227,11 +230,28 @@ async fn dump_config_on_change(
 			}
 			_ = must_exit.changed() => continue,
 		);
-		println!("---- PROXY CONFIGURATION ----");
-		for ent in rx_proxy_config.borrow().entries.iter() {
-			println!("   {}", ent);
+
+		let cfg: Arc<ProxyConfig> = rx_proxy_config.borrow().clone();
+		if cfg != old_cfg {
+			let mut cfg_map = BTreeMap::<_, Vec<_>>::new();
+			for ent in cfg.entries.iter() {
+				cfg_map
+					.entry((&ent.host, &ent.path_prefix))
+					.or_default()
+					.push(ent);
+			}
+
+			println!("---- PROXY CONFIGURATION ----");
+			for ((host, prefix), ents) in cfg_map.iter_mut() {
+				println!("{}{}:", host, prefix.as_deref().unwrap_or_default());
+				for ent in ents.iter() {
+					println!("   {}", ent);
+				}
+			}
+			println!();
+
+			old_cfg = cfg;
 		}
-		println!();
 	}
 }