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denoland-deno/src/main.rs
2018-12-10 17:50:41 -05:00

116 lines
2.5 KiB
Rust

// Copyright 2018 the Deno authors. All rights reserved. MIT license.
extern crate dirs;
extern crate flatbuffers;
extern crate getopts;
extern crate http;
extern crate hyper;
extern crate hyper_rustls;
extern crate libc;
extern crate rand;
extern crate remove_dir_all;
extern crate ring;
extern crate rustyline;
extern crate serde_json;
extern crate source_map_mappings;
extern crate tempfile;
extern crate tokio;
extern crate tokio_executor;
extern crate tokio_fs;
extern crate tokio_io;
extern crate tokio_process;
extern crate tokio_threadpool;
extern crate url;
#[macro_use]
extern crate lazy_static;
#[macro_use]
extern crate log;
#[macro_use]
extern crate futures;
pub mod deno_dir;
pub mod errors;
pub mod flags;
mod fs;
mod http_body;
mod http_util;
pub mod isolate;
pub mod js_errors;
pub mod libdeno;
pub mod msg;
pub mod msg_util;
pub mod ops;
pub mod permissions;
mod repl;
pub mod resources;
pub mod snapshot;
mod tokio_util;
mod tokio_write;
pub mod version;
#[cfg(unix)]
mod eager_unix;
use std::env;
use std::sync::Arc;
static LOGGER: Logger = Logger;
struct Logger;
impl log::Log for Logger {
fn enabled(&self, metadata: &log::Metadata) -> bool {
metadata.level() <= log::max_level()
}
fn log(&self, record: &log::Record) {
if self.enabled(record.metadata()) {
println!("{} RS - {}", record.level(), record.args());
}
}
fn flush(&self) {}
}
fn print_err_and_exit(err: js_errors::JSError) {
eprintln!("{}", err.to_string());
std::process::exit(1);
}
fn main() {
// Rust does not die on panic by default. And -Cpanic=abort is broken.
// https://github.com/rust-lang/cargo/issues/2738
// Therefore this hack.
std::panic::set_hook(Box::new(|panic_info| {
eprintln!("{}", panic_info.to_string());
std::process::abort();
}));
log::set_logger(&LOGGER).unwrap();
let args = env::args().collect();
let (flags, rest_argv, usage_string) =
flags::set_flags(args).unwrap_or_else(|err| {
eprintln!("{}", err);
std::process::exit(1)
});
if flags.help {
println!("{}", &usage_string);
std::process::exit(0);
}
log::set_max_level(if flags.log_debug {
log::LevelFilter::Debug
} else {
log::LevelFilter::Info
});
let state = Arc::new(isolate::IsolateState::new(flags, rest_argv));
let snapshot = snapshot::deno_snapshot();
let isolate = isolate::Isolate::new(snapshot, state, ops::dispatch);
tokio_util::init(|| {
isolate
.execute("deno_main.js", "denoMain();")
.unwrap_or_else(print_err_and_exit);
isolate.event_loop().unwrap_or_else(print_err_and_exit);
});
}