stderrlog

Logger that logs to stderr based on verbosity specified

Documentation

Module documentation with examples

Usage

Add this to your Cargo.toml:

toml [dependencies] stderrlog = "*"

and this to your crate root:

rust extern crate stderrlog;

and this to your main():

rust stderrlog::new().verbosity(args.flag_v).quiet(args.flag_q).init().unwrap();

where your getopt/Docopt args are defined as:

rust struct { flag_v: usize, flag_q: bool, ... }

Example

```rust extern crate docopt;

[macro_use]

extern crate log; extern crate rustc_serialize; extern crate stderrlog;

use docopt::Docopt;

const USAGE: &'static str = " Usage: program [-q] [-v...] ";

[derive(Debug, RustcDecodable)]

struct Args { flagq: bool, flagv: usize, }

fn main() { let args: Args = Docopt::new(USAGE) .andthen(|d| d.decode()) .unwrapor_else(|e| e.exit());

stderrlog::new()
        .module(module_path!())
        .quiet(args.flag_q)
        .verbosity(args.flag_v)
        .init()
        .unwrap();
info!("starting up");

// ...

}