feat: allow YAZI_LOG to control the log level of Überzug++ (#2183)

yazi-adapter/src/drivers/ueberzug.rs

@@ -6,7 +6,7 @@ use ratatui::layout::Rect;
 use tokio::{io::AsyncWriteExt, process::{Child, Command}, sync::mpsc::{self, UnboundedSender}};
 use tracing::{debug, warn};
 use yazi_config::PREVIEW;
-use yazi_shared::{RoCell, env_exists};
+use yazi_shared::{LOG_LEVEL, RoCell, env_exists};
 
 use crate::{Adapter, Dimension};
 
@@ -87,7 +87,7 @@ impl Ueberzug {
 	fn create_demon(adapter: Adapter) -> Result<Child> {
 		let result = Command::new("ueberzugpp")
 			.args(["layer", "-so", &adapter.to_string()])
-			.env("SPDLOG_LEVEL", if cfg!(debug_assertions) { "debug" } else { "" })
+			.env("SPDLOG_LEVEL", if LOG_LEVEL.get().is_none() { "" } else { "debug" })
 			.kill_on_drop(true)
 			.stdin(Stdio::piped())
 			.stdout(Stdio::null())

yazi-fm/src/logs.rs

@@ -1,10 +1,10 @@
-use std::{env, fs::File};
+use std::fs::File;
 
 use anyhow::Context;
 use tracing_appender::non_blocking::WorkerGuard;
 use tracing_subscriber::EnvFilter;
 use yazi_fs::Xdg;
-use yazi_shared::RoCell;
+use yazi_shared::{LOG_LEVEL, RoCell};
 
 static _GUARD: RoCell<WorkerGuard> = RoCell::new();
 
@@ -12,9 +12,8 @@ pub(super) struct Logs;
 
 impl Logs {
 	pub(super) fn start() -> anyhow::Result<()> {
-		let mut level = env::var("YAZI_LOG").unwrap_or_default();
-		level.make_ascii_uppercase();
-		if !matches!(level.as_str(), "ERROR" | "WARN" | "INFO" | "DEBUG") {
+		let level = LOG_LEVEL.get();
+		if LOG_LEVEL.get().is_none() {
 			return Ok(());
 		}
 
@@ -29,7 +28,7 @@ impl Logs {
 		let (non_blocking, guard) = tracing_appender::non_blocking(log_file);
 		tracing_subscriber::fmt()
 			.pretty()
-			.with_env_filter(EnvFilter::new(&level))
+			.with_env_filter(EnvFilter::new(level))
 			.with_writer(non_blocking)
 			.with_ansi(cfg!(debug_assertions))
 			.init();

yazi-fm/src/main.rs

@@ -12,12 +12,11 @@ yazi_macro::mod_flat!(context executor logs panic root router signals term);
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
 	Panic::install();
-	Logs::start()?;
-
-	_ = fdlimit::raise_fd_limit();
-
 	yazi_shared::init();
 
+	Logs::start()?;
+	_ = fdlimit::raise_fd_limit();
+
 	yazi_fs::init();
 
 	yazi_config::init()?;

yazi-shared/src/env.rs

@@ -1,3 +1,7 @@
+use std::fmt::{Display, Formatter};
+
+pub static LOG_LEVEL: crate::SyncCell<LogLevel> = crate::SyncCell::new(LogLevel::None);
+
 #[inline]
 pub fn env_exists(name: &str) -> bool { std::env::var_os(name).is_some_and(|s| !s.is_empty()) }
 
@@ -17,3 +21,47 @@ pub fn in_wsl() -> bool {
 pub fn in_ssh_connection() -> bool {
 	env_exists("SSH_CLIENT") || env_exists("SSH_TTY") || env_exists("SSH_CONNECTION")
 }
+
+// LogLevel
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum LogLevel {
+	None,
+	Error,
+	Warn,
+	Info,
+	Debug,
+}
+
+impl LogLevel {
+	#[inline]
+	pub fn is_none(self) -> bool { self == Self::None }
+}
+
+impl From<String> for LogLevel {
+	fn from(mut s: String) -> Self {
+		s.make_ascii_uppercase();
+		match s.as_str() {
+			"ERROR" => Self::Error,
+			"WARN" => Self::Warn,
+			"INFO" => Self::Info,
+			"DEBUG" => Self::Debug,
+			_ => Self::None,
+		}
+	}
+}
+
+impl AsRef<str> for LogLevel {
+	fn as_ref(&self) -> &str {
+		match self {
+			Self::None => "NONE",
+			Self::Error => "ERROR",
+			Self::Warn => "WARN",
+			Self::Info => "INFO",
+			Self::Debug => "DEBUG",
+		}
+	}
+}
+
+impl Display for LogLevel {
+	fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { write!(f, "{}", self.as_ref()) }
+}

yazi-shared/src/lib.rs

@@ -5,6 +5,8 @@ yazi_macro::mod_pub!(errors event shell theme translit url);
 yazi_macro::mod_flat!(chars condition debounce either env id layer natsort number os rand ro_cell sync_cell terminal throttle time);
 
 pub fn init() {
+	LOG_LEVEL.replace(<_>::from(std::env::var("YAZI_LOG").unwrap_or_default()));
+
 	#[cfg(unix)]
 	USERS_CACHE.with(<_>::default);