default.rs - mozsearch

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/*!

Using `env_logger`.

Before running this example, try setting the `MY_LOG_LEVEL` environment variable to `info`:

```no_run,shell

$ export MY_LOG_LEVEL='info'

```

Also try setting the `MY_LOG_STYLE` environment variable to `never` to disable colors

or `auto` to enable them:

```no_run,shell

$ export MY_LOG_STYLE=never

```

*/

#[macro_use]

extern crate log;

use env_logger::Env;

fn main() {

    // The `Env` lets us tweak what the environment

    // variables to read are and what the default

    // value is if they're missing

    let env = Env::default()

        .filter_or("MY_LOG_LEVEL", "trace")

        .write_style_or("MY_LOG_STYLE", "always");

    env_logger::init_from_env(env);

    trace!("some trace log");

    debug!("some debug log");

    info!("some information log");

    warn!("some warning log");

    error!("some error log");