Usage

externcrate clap_log_flag;#[macro_use]externcrate log;externcrate clap_verbosity_flag;#[macro_use]externcrate structopt;use structopt::StructOpt;#[derive(Debug,StructOpt)]structCli{#[structopt(flatten)]verbose: clap_verbosity_flag::Verbosity,#[structopt(flatten)]log: clap_log_flag::Log,}fnmain() ->Result<(),Box<dyn std::error::Error>>{let args =Cli::from_args();  args.log.log_all(args.verbose.log_level())?;info!("hello");error!("oh no!");Ok(())}

Output

clap-log-flag 0.1.0Yoshua Wuyts <yoshuawuyts@gmail.com>Add a logger to CLIs using structoptUSAGE:    main [FLAGS]FLAGS:    -h, --help         Prints help information    -P, --pretty       Enable pretty printing.    -V, --version      Prints version information    -v, --verbosity    Pass many times for more log output

Installation

$ cargo add clap-log-flag

License