use anyhow::{Context, Error, Result}; use crossterm::event::EventStream; 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(); 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(()) } fn main() -> Result<()> { let exit_code = main_impl()?; std::process::exit(exit_code); } #[tokio::main] async fn main_impl() -> Result { let logpath = helix_loader::log_file(); let parent = logpath.parent().unwrap(); if !parent.exists() { std::fs::create_dir_all(parent).ok(); } let help = format!( "\ {} {} {} {} USAGE: hx [FLAGS] [files]... ARGS: ... Sets the input file to use, position can also be specified via file[:row[:col]] FLAGS: -h, --help Prints help information --tutor Loads the tutorial --health [LANG] Checks for potential errors in editor setup If given, checks for config errors in language LANG -g, --grammar {{fetch|build}} Fetches or builds tree-sitter grammars listed in languages.toml -v Increases logging verbosity each use for up to 3 times (default file: {}) -V, --version Prints version information --vsplit Splits all given files vertically into different windows --hsplit Splits all given files horizontally into different windows ", env!("CARGO_PKG_NAME"), env!("VERSION_AND_GIT_HASH"), 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!("VERSION_AND_GIT_HASH")); std::process::exit(0); } if args.health { if let Err(err) = helix_term::health::print_health(args.health_arg) { // Piping to for example `head -10` requires special handling: // https://stackoverflow.com/a/65760807/7115678 if err.kind() != std::io::ErrorKind::BrokenPipe { return Err(err.into()); } } std::process::exit(0); } if args.fetch_grammars { helix_loader::grammar::fetch_grammars()?; return Ok(0); } if args.build_grammars { helix_loader::grammar::build_grammars(None)?; return Ok(0); } setup_logging(logpath, args.verbosity).context("failed to initialize logging")?; let config_dir = helix_loader::config_dir(); if !config_dir.exists() { std::fs::create_dir_all(&config_dir).ok(); } let config = match std::fs::read_to_string(config_dir.join("config.toml")) { Ok(config) => toml::from_str(&config) .map(helix_term::keymap::merge_keys) .unwrap_or_else(|err| { eprintln!("Bad config: {}", err); eprintln!("Press to continue with default config"); use std::io::Read; // This waits for an enter press. let _ = std::io::stdin().read(&mut []); Config::default() }), Err(err) if err.kind() == std::io::ErrorKind::NotFound => Config::default(), Err(err) => return Err(Error::new(err)), }; // 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")?; let exit_code = app.run(&mut EventStream::new()).await?; Ok(exit_code) }