lighthouse/boot_node/src/lib.rs
blacktemplar 23a8f31f83 Fix clippy warnings (#1385)
## Issue Addressed

NA

## Proposed Changes

Fixes most clippy warnings and ignores the rest of them, see issue #1388.
2020-07-23 14:18:00 +00:00

65 lines
2.2 KiB
Rust

//! Creates a simple DISCV5 server which can be used to bootstrap an Eth2 network.
use clap::ArgMatches;
use slog::{o, Drain, Level, Logger};
use std::convert::TryFrom;
mod cli;
mod config;
mod server;
pub use cli::cli_app;
use config::BootNodeConfig;
/// Run the bootnode given the CLI configuration.
pub fn run(matches: &ArgMatches<'_>, debug_level: String) {
let debug_level = match debug_level.as_str() {
"trace" => log::Level::Trace,
"debug" => log::Level::Debug,
"info" => log::Level::Info,
"warn" => log::Level::Warn,
"error" => log::Level::Error,
"crit" => log::Level::Error,
_ => unreachable!(),
};
// Setting up the initial logger format and building it.
let drain = {
let decorator = slog_term::TermDecorator::new().build();
let decorator = logging::AlignedTermDecorator::new(decorator, logging::MAX_MESSAGE_WIDTH);
let drain = slog_term::FullFormat::new(decorator).build().fuse();
slog_async::Async::new(drain).build()
};
let drain = match debug_level {
log::Level::Info => drain.filter_level(Level::Info),
log::Level::Debug => drain.filter_level(Level::Debug),
log::Level::Trace => drain.filter_level(Level::Trace),
log::Level::Warn => drain.filter_level(Level::Warning),
log::Level::Error => drain.filter_level(Level::Error),
};
let logger = Logger::root(drain.fuse(), o!());
let _scope_guard = slog_scope::set_global_logger(logger);
let _log_guard = slog_stdlog::init_with_level(debug_level).unwrap();
// Run the main function emitting any errors
if let Err(e) = main(matches, slog_scope::logger()) {
slog::crit!(slog_scope::logger(), "{}", e);
}
}
fn main(matches: &ArgMatches<'_>, log: slog::Logger) -> Result<(), String> {
// Builds a custom executor for the bootnode
let mut runtime = tokio::runtime::Builder::new()
.threaded_scheduler()
.enable_all()
.build()
.map_err(|e| format!("Failed to build runtime: {}", e))?;
// parse the CLI args into a useable config
let config = BootNodeConfig::try_from(matches)?;
// Run the boot node
runtime.block_on(server::run(config, log));
Ok(())
}