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Monorepo for Tangled
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1.2 kB · 49 lines
Rust
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950use std::fs::{File, OpenOptions};use std::io::{self, Write};use tracing_subscriber::EnvFilter;use tracing_subscriber::fmt::MakeWriter;
pub fn init() { let filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info")); tracing_subscriber::fmt() .with_env_filter(filter) .with_writer(ConsoleAndStderr) .init();}
#[derive(Clone, Copy, Debug)]struct ConsoleAndStderr;
struct TeeWriter { stderr: io::Stderr, console: Option<File>,}
impl<'a> MakeWriter<'a> for ConsoleAndStderr { type Writer = TeeWriter;
fn make_writer(&'a self) -> Self::Writer { TeeWriter { stderr: io::stderr(), console: OpenOptions::new().write(true).open("/dev/console").ok(), } }}
impl Write for TeeWriter { fn write(&mut self, buf: &[u8]) -> io::Result<usize> { self.stderr.write_all(buf)?; if let Some(console) = &mut self.console { console.write_all(buf)?; } Ok(buf.len()) }
fn flush(&mut self) -> io::Result<()> { self.stderr.flush()?; if let Some(console) = &mut self.console { console.flush()?; } Ok(()) }}