beer

//! beer, a fast, software-rendered, Wayland-native terminal emulator.

mod config;

mod font;

mod grid;

mod input;

mod pty;

mod render;

mod vt;

mod wayland;

use std::path::PathBuf;

use std::process::ExitCode;

use pound::Parse;

use crate::config::Config;

/// A fast, software-rendered, Wayland-native terminal emulator.

#[derive(Parse)]

#[pound(name = "beer", version = "0.0.0")]

struct Cli {

    /// Run as a daemon hosting multiple windows.

    #[pound(long)]

    server: bool,

    /// Path to a config file (default: $XDG_CONFIG_HOME/beer/beer.toml).

    #[pound(long)]

    config: Option<PathBuf>,

}

fn main() -> ExitCode {

    init_logging();

    match run(Cli::parse()) {

        Ok(code) => code,

        Err(err) => {

            tracing::error!("{err:#}");

            eprintln!("beer: {err:#}");

            ExitCode::FAILURE

        }

    }

}

fn init_logging() {

    use tracing_subscriber::{EnvFilter, fmt};

    let filter = EnvFilter::try_from_env("BEER_LOG")

        .or_else(|_| EnvFilter::try_from_default_env())

        .unwrap_or_else(|_| EnvFilter::new("warn"));

    fmt()

        .with_env_filter(filter)

        .with_writer(std::io::stderr)

        .init();

}

fn run(cli: Cli) -> anyhow::Result<ExitCode> {

    if cli.server {

        anyhow::bail!("server mode is not implemented yet");

    }

    let config = Config::load(cli.config.as_deref());

    tracing::info!("starting beer");

    wayland::run(config)

}