use anyhow::{Context, Error, Result}; use helix_term::application::Application; use helix_term::args::Args; use helix_term::config::Config; use std::path::PathBuf; fn setup_logging(logpath: PathBuf, verbosity: u64) -> Result<()> { let mut base_config = fern::Dispatch::new(); // Let's say we depend on something which whose "info" level messages are too // verbose to include in end-user output. If we don't need them, // let's not include them. // .level_for("overly-verbose-target", log::LevelFilter::Warn) base_config = match verbosity { 0 => base_config.level(log::LevelFilter::Warn), 1 => base_config.level(log::LevelFilter::Info), 2 => base_config.level(log::LevelFilter::Debug), _3_or_more => base_config.level(log::LevelFilter::Trace), }; // Separate file config so we can include year, month and day in file logs let file_config = fern::Dispatch::new() .format(|out, message, record| { out.finish(format_args!( "{} {} [{}] {}", chrono::Local::now().format("%Y-%m-%dT%H:%M:%S%.3f"), record.target(), record.level(), message )) }) .chain(fern::log_file(logpath)?); base_config.chain(file_config).apply()?; Ok(()) } #[tokio::main] async fn main() -> Result<()> { let cache_dir = helix_core::cache_dir(); if !cache_dir.exists() { std::fs::create_dir_all(&cache_dir).ok(); } let logpath = cache_dir.join("helix.log"); let help = format!( "\ {} {} {} {} USAGE: hx [FLAGS] [files]... ARGS: ... Sets the input file to use FLAGS: -h, --help Prints help information -v Increases logging verbosity each use for up to 3 times (default file: {}) -V, --version Prints version information ", env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION"), env!("CARGO_PKG_AUTHORS"), env!("CARGO_PKG_DESCRIPTION"), logpath.display(), ); let args = Args::parse_args().context("could not parse arguments")?; // Help has a higher priority and should be handled separately. if args.display_help { print!("{}", help); std::process::exit(0); } if args.display_version { println!("helix {}", env!("CARGO_PKG_VERSION")); std::process::exit(0); } let conf_dir = helix_core::config_dir(); if !conf_dir.exists() { std::fs::create_dir_all(&conf_dir).ok(); } let config = match std::fs::read_to_string(conf_dir.join("config.toml")) { Ok(config) => toml::from_str(&config)?, Err(err) if err.kind() == std::io::ErrorKind::NotFound => Config::default(), Err(err) => return Err(Error::new(err)), }; setup_logging(logpath, args.verbosity).context("failed to initialize logging")?; // TODO: use the thread local executor to spawn the application task separately from the work pool let mut app = Application::new(args, config).context("unable to create new application")?; app.run().await.unwrap(); Ok(()) }