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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
#[macro_use]
extern crate lazy_static;
#[macro_use]
extern crate log;
#[macro_use]
extern crate futures;
#[macro_use]
extern crate serde_json;
extern crate clap;
extern crate deno;
mod ansi;
pub mod compiler;
pub mod deno_dir;
pub mod errors;
pub mod flags;
mod fs;
mod global_timer;
mod http_body;
mod http_util;
pub mod js_errors;
pub mod msg;
pub mod msg_util;
pub mod ops;
pub mod permissions;
mod repl;
pub mod resolve_addr;
pub mod resources;
mod startup_data;
pub mod state;
mod tokio_util;
mod tokio_write;
pub mod version;
pub mod worker;
use crate::errors::RustOrJsError;
use crate::state::ThreadSafeState;
use crate::worker::root_specifier_to_url;
use crate::worker::Worker;
use futures::lazy;
use futures::Future;
use log::{LevelFilter, Metadata, Record};
use std::env;
static LOGGER: Logger = Logger;
struct Logger;
impl log::Log for Logger {
fn enabled(&self, metadata: &Metadata) -> bool {
metadata.level() <= log::max_level()
}
fn log(&self, record: &Record) {
if self.enabled(record.metadata()) {
println!("{} RS - {}", record.level(), record.args());
}
}
fn flush(&self) {}
}
fn print_err_and_exit(err: RustOrJsError) {
eprintln!("{}", err.to_string());
std::process::exit(1);
}
fn js_check<E>(r: Result<(), E>)
where
E: Into<RustOrJsError>,
{
if let Err(err) = r {
print_err_and_exit(err.into());
}
}
// TODO(ry) Move this to main.rs
pub fn print_file_info(worker: &Worker, url: &str) {
let maybe_out =
worker::fetch_module_meta_data_and_maybe_compile(&worker.state, url, ".");
if let Err(err) = maybe_out {
println!("{}", err);
return;
}
let out = maybe_out.unwrap();
println!("{} {}", ansi::bold("local:".to_string()), &(out.filename));
println!(
"{} {}",
ansi::bold("type:".to_string()),
msg::enum_name_media_type(out.media_type)
);
if out.maybe_output_code_filename.is_some() {
println!(
"{} {}",
ansi::bold("compiled:".to_string()),
out.maybe_output_code_filename.as_ref().unwrap(),
);
}
if out.maybe_source_map_filename.is_some() {
println!(
"{} {}",
ansi::bold("map:".to_string()),
out.maybe_source_map_filename.as_ref().unwrap()
);
}
let deps = worker.modules.deps(&out.module_name);
println!("{}{}", ansi::bold("deps:\n".to_string()), deps.name);
if let Some(ref depsdeps) = deps.deps {
for d in depsdeps {
println!("{}", d);
}
}
}
fn main() {
#[cfg(windows)]
ansi_term::enable_ansi_support().ok(); // For Windows 10
log::set_logger(&LOGGER).unwrap();
let args = env::args().collect();
let (mut flags, mut rest_argv) =
flags::set_flags(args).unwrap_or_else(|err| {
eprintln!("{}", err);
std::process::exit(1)
});
log::set_max_level(if flags.log_debug {
LevelFilter::Debug
} else {
LevelFilter::Warn
});
if flags.fmt {
rest_argv.insert(1, "https://deno.land/std/prettier/main.ts".to_string());
flags.allow_read = true;
flags.allow_write = true;
}
let should_prefetch = flags.prefetch || flags.info;
let should_display_info = flags.info;
let state = ThreadSafeState::new(flags, rest_argv, ops::op_selector_std);
let mut worker = Worker::new(
"main".to_string(),
startup_data::deno_isolate_init(),
state.clone(),
);
// TODO(ry) somehow combine the two branches below. They're very similar but
// it's difficult to get the types to workout.
if state.flags.eval {
let main_future = lazy(move || {
js_check(worker.execute("denoMain()"));
// Wrap provided script in async function so asynchronous methods
// work. This is required until top-level await is not supported.
let js_source = format!(
"async function _topLevelWrapper(){{
{}
}}
_topLevelWrapper();
",
&state.argv[1]
);
// ATM imports in `deno eval` are not allowed
// TODO Support ES modules once Worker supports evaluating anonymous modules.
js_check(worker.execute(&js_source));
worker.then(|result| {
js_check(result);
Ok(())
})
});
tokio_util::run(main_future);
} else if let Some(main_module) = state.main_module() {
// Normal situation of executing a module.
let main_future = lazy(move || {
// Setup runtime.
js_check(worker.execute("denoMain()"));
debug!("main_module {}", main_module);
let main_url = root_specifier_to_url(&main_module).unwrap();
worker
.execute_mod_async(&main_url, should_prefetch)
.and_then(move |worker| {
if should_display_info {
// Display file info and exit. Do not run file
print_file_info(&worker, &main_module);
std::process::exit(0);
}
worker.then(|result| {
js_check(result);
Ok(())
})
}).map_err(|(err, _worker)| print_err_and_exit(err))
});
tokio_util::run(main_future);
} else {
// REPL situation.
let main_future = lazy(move || {
// Setup runtime.
js_check(worker.execute("denoMain()"));
worker
.then(|result| {
js_check(result);
Ok(())
}).map_err(|(err, _worker): (RustOrJsError, Worker)| {
print_err_and_exit(err)
})
});
tokio_util::run(main_future);
}
}
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