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denoland-deno/cli/util/logger.rs

98 lines
3.1 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::io::Write;
use super::draw_thread::DrawThread;
struct CliLogger(env_logger::Logger);
impl CliLogger {
pub fn new(logger: env_logger::Logger) -> Self {
Self(logger)
}
pub fn filter(&self) -> log::LevelFilter {
self.0.filter()
}
}
impl log::Log for CliLogger {
fn enabled(&self, metadata: &log::Metadata) -> bool {
self.0.enabled(metadata)
}
fn log(&self, record: &log::Record) {
if self.enabled(record.metadata()) {
// it was considered to hold the draw thread's internal lock
// across logging, but if outputting to stderr blocks then that
// could potentially block other threads that access the draw
// thread's state
DrawThread::hide();
self.0.log(record);
DrawThread::show();
}
}
fn flush(&self) {
self.0.flush();
}
}
pub fn init(maybe_level: Option<log::Level>) {
let log_level = maybe_level.unwrap_or(log::Level::Info);
let logger = env_logger::Builder::from_env(
env_logger::Env::default()
.default_filter_or(log_level.to_level_filter().to_string()),
)
// https://github.com/denoland/deno/issues/6641
.filter_module("rustyline", log::LevelFilter::Off)
// wgpu crates (gfx_backend), have a lot of useless INFO and WARN logs
.filter_module("wgpu", log::LevelFilter::Error)
.filter_module("gfx", log::LevelFilter::Error)
.filter_module("globset", log::LevelFilter::Error)
// used to make available the lsp_debug which is then filtered out at runtime
// in the cli logger
.filter_module("deno::lsp::performance", log::LevelFilter::Debug)
.filter_module("rustls", log::LevelFilter::Off)
// swc_ecma_codegen's `srcmap!` macro emits error-level spans only on debug
// build:
// https://github.com/swc-project/swc/blob/74d6478be1eb8cdf1df096c360c159db64b64d8a/crates/swc_ecma_codegen/src/macros.rs#L112
// We suppress them here to avoid flooding our CI logs in integration tests.
.filter_module("swc_ecma_codegen", log::LevelFilter::Off)
.filter_module("swc_ecma_transforms_optimization", log::LevelFilter::Off)
.filter_module("swc_ecma_parser", log::LevelFilter::Error)
// Suppress span lifecycle logs since they are too verbose
.filter_module("tracing::span", log::LevelFilter::Off)
.format(|buf, record| {
let mut target = record.target().to_string();
if let Some(line_no) = record.line() {
target.push(':');
target.push_str(&line_no.to_string());
}
if record.level() <= log::Level::Info
|| (record.target() == "deno::lsp::performance"
&& record.level() == log::Level::Debug)
{
// Print ERROR, WARN, INFO and lsp_debug logs as they are
writeln!(buf, "{}", record.args())
} else {
// Add prefix to DEBUG or TRACE logs
writeln!(
buf,
"{} RS - {} - {}",
record.level(),
target,
record.args()
)
}
})
.build();
let cli_logger = CliLogger::new(logger);
let max_level = cli_logger.filter();
let r = log::set_boxed_logger(Box::new(cli_logger));
if r.is_ok() {
log::set_max_level(max_level);
}
r.expect("Could not install logger.");
}