feat: add log/log4rs

__log/log4rs/src/main.rs

@@ -0,0 +1,52 @@
+#[macro_use]
+extern crate log;
+extern crate log4rs;
+
+use log::LevelFilter;
+use log4rs::append::console::ConsoleAppender;
+use log4rs::append::file::FileAppender;
+use log4rs::encode::pattern::PatternEncoder;
+use log4rs::config::{Appender, Config, Logger, Root};
+
+fn main() {
+    match std::env::args().nth(1).unwrap_or_else(|| "".to_owned()).as_str() {
+        "f" | "file" => {
+            println!("Load log4rs config from file");
+            log4rs::init_file("log4rs.yml", Default::default()).unwrap();
+        },
+        _ => {
+            println!("Load log4rs config from code");
+            init_log();
+        },
+    }
+    trace!("A trace");
+    debug!("A debug");
+    info!("A info");
+    info!(target:"app", "File info");
+    warn!("A warn");
+    error!("A error");
+}
+
+fn init_log() {
+    let stdout = ConsoleAppender::builder()
+        .encoder(Box::new(PatternEncoder::new("[Console] {d} - {l} -{t} - {m}{n}")))
+        .build();
+
+    let file = FileAppender::builder()
+        .encoder(Box::new(PatternEncoder::new("[File] {d} - {l} - {t} - {m}{n}")))
+        .build("log/test.log")
+        .unwrap();
+
+    let config = Config::builder()
+        .appender(Appender::builder().build("stdout", Box::new(stdout)))
+        .appender(Appender::builder().build("file", Box::new(file)))
+        .logger(Logger::builder()
+            .appender("file")
+            .additive(false)
+            .build("app", LevelFilter::Info))
+        .build(Root::builder().appender("stdout").build(LevelFilter::Info))
+        .unwrap();
+
+    let _ = log4rs::init_config(config).unwrap();
+}
+