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extern crate log;
extern crate env_logger;
extern crate failure;
#[macro_use] extern crate structopt;
use log::{Level, LevelFilter};
use env_logger::Builder as LoggerBuilder;
use failure::Error;
#[derive(StructOpt, Debug)]
pub struct Verbosity {
#[structopt(long = "verbosity", short = "v", parse(from_occurrences))]
verbosity: u8,
}
impl Verbosity {
fn log_level(&self) -> LevelFilter {
match self.verbosity {
0 => Level::Error,
1 => Level::Warn,
2 => Level::Info,
3 => Level::Debug,
_ => Level::Trace,
}.to_level_filter()
}
pub fn setup_env_logger(&self, own_pkg_name: &str) -> Result<(), Error> {
LoggerBuilder::new()
.filter(Some(&own_pkg_name.replace("-", "_")), self.log_level())
.filter(None, Level::Warn.to_level_filter())
.try_init()?;
Ok(())
}
}
use std::fmt;
impl fmt::Display for Verbosity {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.verbosity)
}
}