mars/src/server.rs

#[macro_use]
extern crate log;

use std::process::exit;
use std::sync::{mpsc, Arc, Mutex};
use std::{env, thread};

use colored::*;

use percent_encoding::percent_decode;

use hyper::rt::Future;
use hyper::service::service_fn_ok;
use hyper::{Body, Response, Server};

use mars::{builder_arguments_from_string, watch, GeneralBuilder};

fn main() {
    beautylog::init(log::LevelFilter::Info).ok();

    let mut args = env::args()
        .skip(1)
        .collect::<Vec<_>>()
        .into_iter()
        .peekable();

    let mut watching = None;
    let mut command = None;
    let mut ignore = vec![];

    let exit_code = loop {
        let arg = args.next();
        let arg = arg.as_deref();

        let next = args.peek();
        let next = next.as_deref();

        let watch_is_some = watching.is_some();
        let command_is_some = command.is_some();

        match (arg, next, watch_is_some, command_is_some) {
            (None, _, _, _) => {
                break None;
            }

            (Some("-w") | Some("--watch"), Some(value), false, _) => {
                watching = Some(value.to_string());
            }

            (Some("-w") | Some("--watch"), Some(_), true, _) => {
                error!("argument watch present multiple times");
                break Some(1);
            }

            (Some("-w") | Some("--watch"), None, _, _) => {
                error!("argument watch without value");
                break Some(1);
            }

            (Some("-i") | Some("--ignore"), Some(value), _, _) => {
                ignore.push(value.to_string());
            }

            (Some("-i") | Some("--ignore"), None, _, _) => {
                error!("argument ignore without value");
                break Some(1);
            }

            (Some("-c") | Some("--command"), Some(value), _, false) => {
                command = Some(value.to_string());
            }

            (Some("-c") | Some("--command"), Some(_), _, true) => {
                error!("argument command present multiple times");
                break Some(1);
            }

            (Some("-c") | Some("--command"), None, _, _) => {
                error!("argument command without value");
                break Some(1);
            }

            (Some(value), _, _, _) => {
                error!("argument \"{}\" unknown", value);
                break Some(1);
            }
        }

        args.next();
    };

    if let Some(exit_code) = exit_code {
        exit(exit_code);
    }

    if let Some(watching) = watching {
        if let Err(e) = watch(&watching, ignore, command) {
            error!("{}", e);
            exit(1);
        }
    }

    let (tx, rx) = mpsc::channel();

    let tasks = Arc::new(Mutex::new(vec![]));
    let clone = tasks.clone();

    thread::spawn(move || {
        let addr = ([127, 0, 0, 1], 1500).into();

        let server = Server::bind(&addr)
            .serve(move || {
                let clone = clone.clone();
                let tx_clone = tx.clone();
                let r = service_fn_ok(move |r| {
                    clone.lock().unwrap().push(r.uri().clone());
                    tx_clone.send(()).unwrap();
                    Response::new(Body::from("Ok"))
                });
                r
            })
            .map_err(|e| error!("server error: {}", e));

        info!("mars server listening on {}...", addr);
        hyper::rt::run(server);
    });

    let mut builder = GeneralBuilder::new();

    for _ in rx {
        let uri = {
            let mut tasks = tasks.lock().unwrap();
            tasks.pop()
        };

        if let Some(uri) = uri {
            let uri = percent_decode(uri.path().as_bytes()).decode_utf8().unwrap();
            let (path, args) = builder_arguments_from_string(&*uri);

            let path_string = path.to_str().unwrap();
            let start_string = format!(
                "---- STARTING BUILD ---- from {} {}",
                path_string,
                args.join(" ")
            );
            println!("{}", start_string.bold().green());

            match builder.build(&path, &args) {
                Err(_) => {
                    println!("{}", "--------- FAIL ---------".bold().red());
                }
                Ok(_) => {
                    println!("{}", "----- SUCCESSFUL -----".bold().green());
                }
            };
            println!();
        }
    }
}