Replace tracing with log (#2928)

* Replace tracing crate with log

It's just so much simpler to use

* Add `bacon wasm` job

* eframe: add a WebLogger for piping log events to the web console

crates/egui-winit/Cargo.toml

@@ -48,15 +48,15 @@ wayland = ["winit/wayland"]
 # - It's also important that we don't impose an android-activity backend by taking this choice away from applications.
 
 ## Enable the `native-activity` backend via Winit on Android
-android-native-activity = [ "winit/android-native-activity" ]
+android-native-activity = ["winit/android-native-activity"]
 ## Enable the `game-activity` backend via Winit on Android
-android-game-activity = [ "winit/android-game-activity" ]
+android-game-activity = ["winit/android-game-activity"]
 
 [dependencies]
 egui = { version = "0.21.0", path = "../egui", default-features = false, features = [
-  "tracing",
+  "log",
 ] }
-tracing = { version = "0.1", default-features = false, features = ["std"] }
+log = { version = "0.4", features = ["std"] }
 winit = { version = "0.28", default-features = false }
 
 #! ### Optional dependencies
@@ -85,4 +85,3 @@ smithay-clipboard = { version = "0.6.3", optional = true }
 
 [target.'cfg(not(target_os = "android"))'.dependencies]
 arboard = { version = "3.2", optional = true, default-features = false }
-

crates/egui-winit/src/clipboard.rs

@@ -66,7 +66,7 @@ impl Clipboard {
             return match clipboard.load() {
                 Ok(text) => Some(text),
                 Err(err) => {
-                    tracing::error!("smithay paste error: {err}");
+                    log::error!("smithay paste error: {err}");
                     None
                 }
             };
@@ -77,7 +77,7 @@ impl Clipboard {
             return match clipboard.get_text() {
                 Ok(text) => Some(text),
                 Err(err) => {
-                    tracing::error!("arboard paste error: {err}");
+                    log::error!("arboard paste error: {err}");
                     None
                 }
             };
@@ -105,7 +105,7 @@ impl Clipboard {
         #[cfg(all(feature = "arboard", not(target_os = "android")))]
         if let Some(clipboard) = &mut self.arboard {
             if let Err(err) = clipboard.set_text(text) {
-                tracing::error!("arboard copy/cut error: {err}");
+                log::error!("arboard copy/cut error: {err}");
             }
             return;
         }
@@ -116,11 +116,11 @@ impl Clipboard {
 
 #[cfg(all(feature = "arboard", not(target_os = "android")))]
 fn init_arboard() -> Option<arboard::Clipboard> {
-    tracing::debug!("Initializing arboard clipboard…");
+    log::debug!("Initializing arboard clipboard…");
     match arboard::Clipboard::new() {
         Ok(clipboard) => Some(clipboard),
         Err(err) => {
-            tracing::warn!("Failed to initialize arboard clipboard: {err}");
+            log::warn!("Failed to initialize arboard clipboard: {err}");
             None
         }
     }
@@ -144,18 +144,18 @@ fn init_smithay_clipboard<T>(
     {
         use winit::platform::wayland::EventLoopWindowTargetExtWayland as _;
         if let Some(display) = _event_loop.wayland_display() {
-            tracing::debug!("Initializing smithay clipboard…");
+            log::debug!("Initializing smithay clipboard…");
             #[allow(unsafe_code)]
             Some(unsafe { smithay_clipboard::Clipboard::new(display) })
         } else {
-            tracing::debug!("Cannot initialize smithay clipboard without a display handle");
+            log::debug!("Cannot initialize smithay clipboard without a display handle");
             None
         }
     }
 
     #[cfg(not(feature = "wayland"))]
     {
-        tracing::debug!(
+        log::debug!(
             "You need to enable the 'wayland' feature of 'egui-winit' to get a working clipboard"
         );
         None

crates/egui-winit/src/lib.rs

@@ -700,12 +700,12 @@ impl State {
 fn open_url_in_browser(_url: &str) {
     #[cfg(feature = "webbrowser")]
     if let Err(err) = webbrowser::open(_url) {
-        tracing::warn!("Failed to open url: {}", err);
+        log::warn!("Failed to open url: {}", err);
     }
 
     #[cfg(not(feature = "webbrowser"))]
     {
-        tracing::warn!("Cannot open url - feature \"links\" not enabled.");
+        log::warn!("Cannot open url - feature \"links\" not enabled.");
     }
 }