Use log facade and log4rs for logging.

Author: G8XSU

Cargo.lock

@@ -5,6 +5,8 @@ edition = "2021"
 
 [dependencies]
 ldk-node = { git = "https://github.com/lightningdevkit/ldk-node.git", rev = "6de350040e0fc5eb9cfcd15fad3919f5a79b82b9" }
+log = { version = "0.4.25", default-features = false, features = ["std"]}
+log4rs = { version = "1.3.0", default-features = false, features = ["config_parsing", "toml_format", "rolling_file_appender", "compound_policy","fixed_window_roller","size_trigger"] }
 serde = { version = "1.0.203", default-features = false, features = ["derive"] }
 serde_json = { version = "1.0.118", default-features = false }
 hyper = { version = "1", default-features = false, features = ["server", "http1"] }

ldk-server/Cargo.toml

@@ -0,0 +1,33 @@
+refresh_rate = "30 seconds"
+
+[appenders.rolling_file_appender]
+kind = "rolling_file"
+path = "logs/ldk-server.log"
+encoder.pattern = "{d(%Y-%m-%d %H:%M:%S)} [{t}] {l} {M} - {m}{n}"
+
+[appenders.rolling_file_appender.policy]
+kind = "compound"
+
+[appenders.rolling_file_appender.policy.trigger]
+kind = "size"
+limit = 10485760  # 10 MB
+
+[appenders.rolling_file_appender.policy.roller]
+kind = "fixed_window"
+pattern = "logs/ldk-server.{}.log"
+base = 1
+count = 5
+
+[root]
+level = "info"
+appenders = ["rolling_file_appender"]
+
+[loggers.ldk-server]
+level = "info"
+appenders = ["rolling_file_appender"]
+additive = false
+
+[loggers.ldk-node]
+level = "debug"
+appenders = ["rolling_file_appender"]
+additive = false

ldk-server/log4rs.toml

@@ -36,6 +36,8 @@ const USAGE_GUIDE: &str = "Usage: ldk-server <config_path>";
 fn main() {
 	let args: Vec<String> = std::env::args().collect();
 
+	log4rs::init_file("./ldk-server/log4rs.toml", Default::default()).unwrap();
+
 	if args.len() < 2 {
 		eprintln!("{USAGE_GUIDE}");
 		std::process::exit(-1);