84 lines
1.9 KiB
Rust
84 lines
1.9 KiB
Rust
pub mod prelude;
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pub mod libsh;
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pub mod prompt;
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pub mod procio;
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pub mod parse;
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pub mod expand;
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pub mod state;
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pub mod builtin;
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pub mod jobs;
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pub mod signal;
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#[cfg(test)]
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pub mod tests;
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use libsh::error::ShResult;
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use parse::{execute::Dispatcher, lex::{LexFlags, LexStream}, Ast, ParseStream, ParsedSrc};
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use procio::IoFrame;
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use signal::sig_setup;
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use state::write_meta;
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use termios::{LocalFlags, Termios};
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use crate::prelude::*;
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pub static mut SAVED_TERMIOS: Option<Option<Termios>> = None;
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pub fn save_termios() {
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unsafe {
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SAVED_TERMIOS = Some(if isatty(std::io::stdin().as_raw_fd()).unwrap() {
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let mut termios = termios::tcgetattr(std::io::stdin()).unwrap();
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termios.local_flags &= !LocalFlags::ECHOCTL;
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termios::tcsetattr(std::io::stdin(), nix::sys::termios::SetArg::TCSANOW, &termios).unwrap();
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Some(termios)
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} else {
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None
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});
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}
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}
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pub fn get_saved_termios() -> Option<Termios> {
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unsafe {
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// This is only used when the shell exits so it's fine
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// SAVED_TERMIOS is only mutated once at the start as well
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SAVED_TERMIOS.clone().flatten()
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}
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}
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fn set_termios() {
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if isatty(std::io::stdin().as_raw_fd()).unwrap() {
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let mut termios = termios::tcgetattr(std::io::stdin()).unwrap();
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termios.local_flags &= !LocalFlags::ECHOCTL;
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termios::tcsetattr(std::io::stdin(), nix::sys::termios::SetArg::TCSANOW, &termios).unwrap();
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}
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}
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pub fn exec_input(input: String) -> ShResult<()> {
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write_meta(|m| m.start_timer());
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let mut parser = ParsedSrc::new(Rc::new(input));
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parser.parse_src()?;
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let exec_start = Instant::now();
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let mut dispatcher = Dispatcher::new(parser.extract_nodes());
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dispatcher.begin_dispatch()?;
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Ok(())
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}
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fn main() {
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save_termios();
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set_termios();
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sig_setup();
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loop {
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let input = match prompt::read_line() {
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Ok(line) => line,
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Err(e) => {
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eprintln!("{e}");
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continue
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}
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};
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if let Err(e) = exec_input(input) {
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eprintln!("{e}");
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}
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}
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}
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