65 lines
2.1 KiB
Rust
65 lines
2.1 KiB
Rust
|
// Copyright 2016 Joe Wilm, The Alacritty Project Contributors
|
||
|
//
|
||
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
// you may not use this file except in compliance with the License.
|
||
|
// You may obtain a copy of the License at
|
||
|
//
|
||
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
//
|
||
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
// See the License for the specific language governing permissions and
|
||
|
// limitations under the License.
|
||
|
//
|
||
|
//! Logging for alacritty.
|
||
|
//!
|
||
|
//! The main executable is supposed to call `initialize()` exactly once during
|
||
|
//! startup. All logging messages are written to stdout, given that their
|
||
|
//! log-level is sufficient for the level configured in `cli::Options`.
|
||
|
use log;
|
||
|
use std::sync;
|
||
|
use std::io;
|
||
|
use cli;
|
||
|
|
||
|
pub struct Logger<T:Send+io::Write> {
|
||
|
level: log::LogLevelFilter,
|
||
|
output: sync::Mutex<T>
|
||
|
}
|
||
|
|
||
|
impl<T> Logger<T> where T:Send+io::Write {
|
||
|
pub fn new(output: T, level: log::LogLevelFilter) -> Logger<io::LineWriter<T>> {
|
||
|
Logger { level: level,
|
||
|
output: sync::Mutex::new(io::LineWriter::new(output)) }
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
impl<T> log::Log for Logger<T> where T:Send+io::Write {
|
||
|
fn enabled(&self, metadata: &log::LogMetadata) -> bool {
|
||
|
metadata.level() <= self.level
|
||
|
}
|
||
|
|
||
|
fn log(&self, record: &log::LogRecord) {
|
||
|
if !self.enabled(record.metadata()) {
|
||
|
return
|
||
|
}
|
||
|
let writer = &mut self.output.lock().unwrap();
|
||
|
if self.level < log::LogLevelFilter::Debug {
|
||
|
writer.write(format!("{}\n", record.args()).as_ref()).unwrap();
|
||
|
} else {
|
||
|
writer.write(format!("{}: {}\n",
|
||
|
record.target(),
|
||
|
record.args())
|
||
|
.as_ref()).unwrap();
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub fn initialize(options: &cli::Options) {
|
||
|
log::set_logger(|max_log_level| {
|
||
|
max_log_level.set(options.log_level);
|
||
|
Box::new(Logger::new(io::stdout(), options.log_level))
|
||
|
}).unwrap_or_else(|e| die!("{}", e));
|
||
|
}
|