2019-02-14 01:09:18 +00:00
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extern crate slog;
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2019-02-27 23:24:27 +00:00
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mod run;
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2019-02-14 01:09:18 +00:00
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use clap::{App, Arg};
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2019-03-01 01:45:01 +00:00
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use client::ClientConfig;
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2019-06-07 23:44:27 +00:00
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use slog::{crit, o, Drain};
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2019-06-08 01:00:34 +00:00
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use std::fs;
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use std::fs::File;
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use std::io::prelude::*;
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pub const SAMPLE_CONFIG_FILENAME: &str = "beacon_node_config.sample.toml";
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pub const CONFIG_FILENAME: &str = "beacon_node_config.toml";
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pub const DEFAULT_DATA_DIR: &str = ".lighthouse";
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2019-02-14 01:09:18 +00:00
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fn main() {
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let decorator = slog_term::TermDecorator::new().build();
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let drain = slog_term::CompactFormat::new(decorator).build().fuse();
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let drain = slog_async::Async::new(drain).build().fuse();
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2019-02-27 23:24:27 +00:00
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let logger = slog::Logger::root(drain, o!());
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2019-02-14 01:09:18 +00:00
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let matches = App::new("Lighthouse")
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2019-02-27 23:24:27 +00:00
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.version(version::version().as_str())
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.author("Sigma Prime <contact@sigmaprime.io>")
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2019-02-14 01:09:18 +00:00
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.about("Eth 2.0 Client")
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2019-04-01 01:14:44 +00:00
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// file system related arguments
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2019-02-14 01:09:18 +00:00
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.arg(
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Arg::with_name("datadir")
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.long("datadir")
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.value_name("DIR")
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.help("Data directory for keys and databases.")
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2019-06-08 01:00:34 +00:00
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.takes_value(true)
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.default_value(DEFAULT_DATA_DIR),
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2019-02-14 01:09:18 +00:00
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)
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2019-04-01 01:14:44 +00:00
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// network related arguments
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2019-02-27 23:24:27 +00:00
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.arg(
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2019-04-01 05:29:11 +00:00
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Arg::with_name("listen-address")
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2019-03-19 22:58:31 +00:00
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.long("listen-address")
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2019-02-27 23:24:27 +00:00
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.value_name("Listen Address")
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2019-06-07 23:44:27 +00:00
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.help("One or more comma-delimited multi-addresses to listen for p2p connections.")
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2019-02-14 01:09:18 +00:00
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.takes_value(true),
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)
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2019-04-01 01:14:44 +00:00
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.arg(
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Arg::with_name("boot-nodes")
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.long("boot-nodes")
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.value_name("BOOTNODES")
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2019-06-07 23:44:27 +00:00
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.help("One or more comma-delimited multi-addresses to bootstrap the p2p network.")
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2019-04-01 01:14:44 +00:00
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.takes_value(true),
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)
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// rpc related arguments
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2019-03-19 13:01:00 +00:00
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.arg(
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Arg::with_name("rpc")
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2019-03-19 22:58:31 +00:00
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.long("rpc")
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2019-03-19 13:01:00 +00:00
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.value_name("RPC")
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.help("Enable the RPC server.")
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.takes_value(false),
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)
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.arg(
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Arg::with_name("rpc-address")
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2019-03-19 22:58:31 +00:00
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.long("rpc-address")
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2019-03-19 13:01:00 +00:00
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.value_name("RPCADDRESS")
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.help("Listen address for RPC endpoint.")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("rpc-port")
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2019-03-19 22:58:31 +00:00
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.long("rpc-port")
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2019-03-19 13:01:00 +00:00
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.value_name("RPCPORT")
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.help("Listen port for RPC endpoint.")
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.takes_value(true),
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)
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2019-05-28 03:50:51 +00:00
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// HTTP related arguments
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.arg(
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Arg::with_name("http")
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.long("http")
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.value_name("HTTP")
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.help("Enable the HTTP server.")
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.takes_value(false),
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)
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.arg(
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Arg::with_name("http-address")
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.long("http-address")
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.value_name("HTTPADDRESS")
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.help("Listen address for the HTTP server.")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("http-port")
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.long("http-port")
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.value_name("HTTPPORT")
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.help("Listen port for the HTTP server.")
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.takes_value(true),
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)
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2019-03-31 07:57:48 +00:00
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.arg(
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Arg::with_name("db")
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.long("db")
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.value_name("DB")
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.help("Type of database to use.")
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.takes_value(true)
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2019-05-21 07:45:35 +00:00
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.possible_values(&["disk", "memory"])
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2019-03-31 07:57:48 +00:00
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.default_value("memory"),
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)
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2019-02-14 01:09:18 +00:00
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.get_matches();
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2019-06-08 01:00:34 +00:00
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let mut config = match load_config(matches.value_of("data_dir")) {
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Ok(c) => c,
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Err(e) => {
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crit!(logger, "Failed to load/generate a ChainConfig"; "error" => format!("{:?}", e));
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return;
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}
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};
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2019-06-07 23:44:27 +00:00
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match config.apply_cli_args(&matches) {
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Ok(()) => (),
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Err(s) => {
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crit!(logger, "Failed to parse CLI arguments"; "error" => s);
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return;
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}
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};
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2019-02-14 01:09:18 +00:00
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2019-03-19 11:53:51 +00:00
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match run::run_beacon_node(config, &logger) {
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Ok(_) => {}
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2019-06-07 23:44:27 +00:00
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Err(e) => crit!(logger, "Beacon node failed to start"; "reason" => format!("{:}", e)),
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2019-03-19 11:53:51 +00:00
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}
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2019-02-14 01:09:18 +00:00
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}
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2019-06-08 01:00:34 +00:00
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/// Loads a `ClientConfig` from file. If unable to load from file, generates a default
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/// configuration and saves that as a sample file.
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fn load_config(data_dir: Option<&str>) -> Result<ClientConfig, String> {
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let data_dir = data_dir.unwrap_or_else(|| DEFAULT_DATA_DIR);
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let path = dirs::home_dir()
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.ok_or_else(|| "Unable to locate home directory")?
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.join(&data_dir);
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fs::create_dir_all(&path).map_err(|_| "Unable to open data_dir")?;
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if let Ok(mut file) = File::open(path.join(CONFIG_FILENAME)) {
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let mut contents = String::new();
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file.read_to_string(&mut contents).map_err(|e| {
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format!(
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"Unable to read existing {}. Error: {:?}",
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CONFIG_FILENAME, e
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)
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})?;
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toml::from_str(&contents).map_err(|_| format!("Unable to parse {}", CONFIG_FILENAME))
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} else {
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let mut config = ClientConfig::default();
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config.data_dir = data_dir.to_string();
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if let Ok(mut file) = File::create(path.join(SAMPLE_CONFIG_FILENAME)) {
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let toml_encoded = toml::to_string(&config).map_err(|e| {
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format!(
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"Failed to write configuration to {}. Error: {:?}",
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SAMPLE_CONFIG_FILENAME, e
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)
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})?;
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file.write_all(toml_encoded.as_bytes())
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.expect(&format!("Unable to write to {}", SAMPLE_CONFIG_FILENAME));
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}
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Ok(config)
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}
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}
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