logging: Use glib as log backend instead of env_logger.

This makes log output use the same logger as gtk itself and as most other gtk applications

Cargo.lock

@@ -59,7 +59,7 @@ dependencies = [
  "cexpr",
  "clang-sys",
  "clap",
- "env_logger 0.8.4",
+ "env_logger",
  "lazy_static",
  "lazycell",
  "log",
@@ -210,19 +210,6 @@ dependencies = [
  "termcolor",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
-dependencies = [
- "atty",
- "humantime",
- "log",
- "regex",
- "termcolor",
-]
-
 [[package]]
 name = "errno"
 version = "0.2.7"
@@ -415,6 +402,7 @@ dependencies = [
  "glib-sys",
  "gobject-sys",
  "libc",
+ "log",
  "once_cell",
  "smallvec",
 ]
@@ -587,7 +575,7 @@ dependencies = [
 name = "helvum"
 version = "0.3.2"
 dependencies = [
- "env_logger 0.9.0",
+ "glib",
  "gtk4",
  "log",
  "once_cell",

Cargo.toml

@@ -16,8 +16,8 @@ categories = ["gui", "multimedia"]
 [dependencies]
 pipewire = "0.4"
 gtk = { version = "0.3", package = "gtk4" }
+glib = { version = "0.14", features = ["log"] }
 
 log = "0.4.11"
-env_logger = "0.9.0"
 
 once_cell = "1.7.2"

meson.build

@@ -8,7 +8,7 @@ project(
 
 base_id = 'org.freedesktop.ryuukyu.Helvum'
 
-dependency('glib-2.0', version: '>= 2.48')
+dependency('glib-2.0', version: '>= 2.66')
 dependency('gtk4',     version: '>= 4.4.0')
 dependency('libpipewire-0.3')
 

src/main.rs

@@ -21,10 +21,8 @@ mod application;
 mod pipewire_connection;
 mod view;
 
-use gtk::{
-    glib::{self, PRIORITY_DEFAULT},
-    prelude::*,
-};
+use glib::PRIORITY_DEFAULT;
+use gtk::prelude::*;
 use pipewire::spa::Direction;
 
 /// Messages sent by the GTK thread to notify the pipewire thread.
@@ -96,8 +94,20 @@ pub struct PipewireLink {
     pub port_to: u32,
 }
 
+static GLIB_LOGGER: glib::GlibLogger = glib::GlibLogger::new(
+    glib::GlibLoggerFormat::Structured,
+    glib::GlibLoggerDomain::CrateTarget,
+);
+
+fn init_glib_logger() {
+    log::set_logger(&GLIB_LOGGER).expect("Failed to set logger");
+
+    // Glib does not have a "Trace" log level, so only print messages "Debug" or higher priority.
+    log::set_max_level(log::LevelFilter::Debug);
+}
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
-    env_logger::init();
+    init_glib_logger();
     gtk::init()?;
 
     // Aquire main context so that we can attach the gtk channel later.