log: do not send logs to stdout

sdgb-cli/src/main.rs

@@ -1,11 +1,14 @@
 use std::{
     io::stdout,
-    sync::atomic::{AtomicBool, Ordering},
+    sync::{
+        Arc,
+        atomic::{AtomicBool, Ordering},
+    },
 };
 
 use nyquest_preset::nyquest::ClientBuilder;
 use palc::Parser;
-use spdlog::{Level, LevelFilter::MoreSevereEqual};
+use spdlog::{Level, LevelFilter::MoreSevereEqual, sink::StdStreamSink, terminal_style::StyleMode};
 
 use sdgb_api::{
     all_net::QRCode,
@@ -40,11 +43,20 @@ static EARLY_QUIT: AtomicBool = AtomicBool::new(false);
 async fn main() -> Result<(), Box<dyn snafu::Error>> {
     nyquest_preset::register();
 
-    if cfg!(debug_assertions) {
-        spdlog::default_logger().set_level_filter(MoreSevereEqual(Level::Debug));
-    } else {
-        spdlog::default_logger().set_level_filter(MoreSevereEqual(Level::Info));
-    }
+    let logger = spdlog::default_logger().fork_with(|log| {
+        log.set_level_filter(MoreSevereEqual(if cfg!(debug_assertions) {
+            Level::Debug
+        } else {
+            Level::Info
+        }));
+        let sink = StdStreamSink::builder()
+            .stderr()
+            .style_mode(StyleMode::Auto)
+            .build()?;
+        *log.sinks_mut() = vec![Arc::new(sink)];
+        Ok(())
+    })?;
+    spdlog::swap_default_logger(logger);
 
     ctrlc::set_handler(|| {
         if EARLY_QUIT.load(Ordering::Relaxed) {