Method init_logging

crates/cli-flags/src/lib.rs:773–804

(&mut self)

    }

    pub fn init_logging(&mut self) -> Result<()> {
        self.configure()?;
        if self.debug.logging == Some(false) {
            return Ok(());
        }
        #[cfg(feature = "logging")]
        if self.debug.log_to_files == Some(true) {
            let prefix = "wasmtime.dbg.";
            init_file_per_thread_logger(prefix);
        } else {
            use std::io::IsTerminal;
            use tracing_subscriber::{EnvFilter, FmtSubscriber};
            let builder = FmtSubscriber::builder()
                .with_writer(std::io::stderr)
                .with_env_filter(EnvFilter::from_env("WASMTIME_LOG"))
                .with_ansi(std::io::stderr().is_terminal());
            if std::env::var("WASMTIME_LOG_NO_CONTEXT").is_ok_and(|value| value.eq("1")) {
                builder
                    .with_level(false)
                    .with_target(false)
                    .without_time()
                    .init()
            } else {
                builder.init();
            }
        }
        #[cfg(not(feature = "logging"))]
        if self.debug.log_to_files == Some(true) || self.debug.logging == Some(true) {
            bail!("support for logging disabled at compile time");
        }
        Ok(())
    }

    pub fn config(&mut self, pooling_allocator_default: Option<bool>) -> Result<Config> {
        self.configure()?;