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denoland-deno/cli/lib.rs
2020-02-09 11:19:05 +01:00

462 lines
12 KiB
Rust

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
#![deny(warnings)]
#[macro_use]
extern crate lazy_static;
#[macro_use]
extern crate log;
extern crate futures;
#[macro_use]
extern crate serde_json;
extern crate clap;
extern crate deno_core;
extern crate indexmap;
#[cfg(unix)]
extern crate nix;
extern crate rand;
extern crate serde;
extern crate serde_derive;
extern crate tokio;
extern crate url;
mod checksum;
pub mod colors;
pub mod compilers;
pub mod deno_dir;
pub mod deno_error;
pub mod diagnostics;
mod disk_cache;
mod file_fetcher;
pub mod flags;
mod fmt;
pub mod fmt_errors;
mod fs;
mod global_state;
mod global_timer;
mod http_util;
mod import_map;
pub mod installer;
mod js;
mod lockfile;
mod metrics;
pub mod msg;
pub mod ops;
pub mod permissions;
mod progress;
mod repl;
pub mod resolve_addr;
mod shell;
pub mod signal;
pub mod source_maps;
mod startup_data;
pub mod state;
pub mod test_util;
mod tokio_util;
pub mod version;
mod web_worker;
pub mod worker;
use crate::compilers::TargetLib;
use crate::deno_error::js_check;
use crate::deno_error::{print_err_and_exit, print_msg_and_exit};
use crate::global_state::GlobalState;
use crate::ops::io::get_stdio;
use crate::state::State;
use crate::worker::MainWorker;
use deno_core::v8_set_flags;
use deno_core::ErrBox;
use deno_core::ModuleSpecifier;
use flags::DenoFlags;
use flags::DenoSubcommand;
use log::Level;
use log::Metadata;
use log::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()) {
let mut target = record.target().to_string();
if let Some(line_no) = record.line() {
target.push_str(":");
target.push_str(&line_no.to_string());
}
println!("{} RS - {} - {}", record.level(), target, record.args());
}
}
fn flush(&self) {}
}
fn create_global_state(flags: DenoFlags) -> GlobalState {
GlobalState::new(flags)
.map_err(deno_error::print_err_and_exit)
.unwrap()
}
fn create_main_worker(
global_state: GlobalState,
main_module: ModuleSpecifier,
) -> MainWorker {
let state = State::new(global_state, None, main_module)
.map_err(deno_error::print_err_and_exit)
.unwrap();
let state_ = state.clone();
{
let mut state = state_.borrow_mut();
let (stdin, stdout, stderr) = get_stdio();
state.resource_table.add("stdin", Box::new(stdin));
state.resource_table.add("stdout", Box::new(stdout));
state.resource_table.add("stderr", Box::new(stderr));
}
MainWorker::new("main".to_string(), startup_data::deno_isolate_init(), state)
}
fn types_command() {
let types = format!(
"{}\n{}\n{}",
crate::js::DENO_NS_LIB,
crate::js::SHARED_GLOBALS_LIB,
crate::js::WINDOW_LIB
);
use std::io::Write;
let _r = std::io::stdout().write_all(types.as_bytes());
// TODO(ry) Only ignore SIGPIPE. Currently ignoring all errors.
}
fn print_cache_info(state: &GlobalState) {
println!(
"{} {:?}",
colors::bold("DENO_DIR location:".to_string()),
state.dir.root
);
println!(
"{} {:?}",
colors::bold("Remote modules cache:".to_string()),
state.dir.deps_cache.location
);
println!(
"{} {:?}",
colors::bold("TypeScript compiler cache:".to_string()),
state.dir.gen_cache.location
);
}
async fn print_file_info(
worker: &MainWorker,
module_specifier: ModuleSpecifier,
) {
let global_state = worker.state.borrow().global_state.clone();
let maybe_source_file = global_state
.file_fetcher
.fetch_source_file_async(&module_specifier, None)
.await;
if let Err(err) = maybe_source_file {
println!("{}", err);
return;
}
let out = maybe_source_file.unwrap();
println!(
"{} {}",
colors::bold("local:".to_string()),
out.filename.to_str().unwrap()
);
println!(
"{} {}",
colors::bold("type:".to_string()),
msg::enum_name_media_type(out.media_type)
);
let module_specifier_ = module_specifier.clone();
let maybe_compiled = global_state
.clone()
.fetch_compiled_module(module_specifier_, None, TargetLib::Main)
.await;
if let Err(e) = maybe_compiled {
debug!("compiler error exiting!");
eprintln!("\n{}", e.to_string());
std::process::exit(1);
}
if out.media_type == msg::MediaType::TypeScript
|| (out.media_type == msg::MediaType::JavaScript
&& global_state.ts_compiler.compile_js)
{
let compiled_source_file = global_state
.ts_compiler
.get_compiled_source_file(&out.url)
.unwrap();
println!(
"{} {}",
colors::bold("compiled:".to_string()),
compiled_source_file.filename.to_str().unwrap(),
);
}
if let Ok(source_map) = global_state
.clone()
.ts_compiler
.get_source_map_file(&module_specifier)
{
println!(
"{} {}",
colors::bold("map:".to_string()),
source_map.filename.to_str().unwrap()
);
}
if let Some(deps) = worker.isolate.modules.deps(&module_specifier) {
println!("{}{}", colors::bold("deps:\n".to_string()), deps.name);
if let Some(ref depsdeps) = deps.deps {
for d in depsdeps {
println!("{}", d);
}
}
} else {
println!(
"{} cannot retrieve full dependency graph",
colors::bold("deps:".to_string()),
);
}
}
async fn info_command(flags: DenoFlags, file: Option<String>) {
let global_state = create_global_state(flags);
// If it was just "deno info" print location of caches and exit
if file.is_none() {
return print_cache_info(&global_state);
}
// Setup runtime.
let main_module = ModuleSpecifier::resolve_url_or_path(&file.unwrap())
.expect("Bad specifier");
let mut worker = create_main_worker(global_state, main_module.clone());
// TODO(bartlomieju): not needed?
js_check(worker.execute("bootstrapMainRuntime()"));
let main_result = worker.execute_mod_async(&main_module, None, true).await;
if let Err(e) = main_result {
print_err_and_exit(e);
}
print_file_info(&worker, main_module.clone()).await;
let result = (&mut *worker).await;
js_check(result);
}
async fn install_command(
flags: DenoFlags,
dir: Option<String>,
exe_name: String,
module_url: String,
args: Vec<String>,
force: bool,
) {
// Firstly fetch and compile module, this
// ensures the module exists.
let mut fetch_flags = flags.clone();
fetch_flags.reload = true;
fetch_command(fetch_flags, vec![module_url.to_string()]).await;
let install_result =
installer::install(flags, dir, &exe_name, &module_url, args, force);
if let Err(e) = install_result {
print_msg_and_exit(&e.to_string());
}
}
async fn fetch_command(flags: DenoFlags, files: Vec<String>) {
let main_module =
ModuleSpecifier::resolve_url_or_path("./__$deno$fetch.ts").unwrap();
let global_state = create_global_state(flags);
let mut worker =
create_main_worker(global_state.clone(), main_module.clone());
// TODO(bartlomieju): not needed?
js_check(worker.execute("bootstrapMainRuntime()"));
for file in files {
let specifier = ModuleSpecifier::resolve_url_or_path(&file).unwrap();
let result = worker.execute_mod_async(&specifier, None, true).await;
js_check(result);
}
if global_state.flags.lock_write {
if let Some(ref lockfile) = global_state.lockfile {
let g = lockfile.lock().unwrap();
if let Err(e) = g.write() {
print_err_and_exit(ErrBox::from(e));
}
} else {
eprintln!("--lock flag must be specified when using --lock-write");
std::process::exit(11);
}
}
}
async fn eval_command(flags: DenoFlags, code: String) {
// Force TypeScript compile.
let main_module =
ModuleSpecifier::resolve_url_or_path("./__$deno$eval.ts").unwrap();
let global_state = create_global_state(flags);
let mut worker = create_main_worker(global_state, main_module.clone());
js_check(worker.execute("bootstrapMainRuntime()"));
debug!("main_module {}", &main_module);
let exec_result = worker
.execute_mod_async(&main_module, Some(code), false)
.await;
if let Err(e) = exec_result {
print_err_and_exit(e);
}
js_check(worker.execute("window.dispatchEvent(new Event('load'))"));
let result = (&mut *worker).await;
js_check(result);
js_check(worker.execute("window.dispatchEvent(new Event('unload'))"));
}
async fn bundle_command(
flags: DenoFlags,
source_file: String,
out_file: Option<String>,
) {
debug!(">>>>> bundle_async START");
let source_file_specifier =
ModuleSpecifier::resolve_url_or_path(&source_file).expect("Bad specifier");
let global_state = create_global_state(flags);
let mut worker =
create_main_worker(global_state.clone(), source_file_specifier.clone());
// NOTE: we need to poll `worker` otherwise TS compiler worker won't run properly
let result = (&mut *worker).await;
js_check(result);
let bundle_result = global_state
.ts_compiler
.bundle_async(
global_state.clone(),
source_file_specifier.to_string(),
out_file,
)
.await;
if let Err(err) = bundle_result {
debug!("diagnostics returned, exiting!");
eprintln!("");
print_err_and_exit(err);
}
debug!(">>>>> bundle_async END");
}
async fn run_repl(flags: DenoFlags) {
let main_module =
ModuleSpecifier::resolve_url_or_path("./__$deno$repl.ts").unwrap();
let global_state = create_global_state(flags);
let mut worker = create_main_worker(global_state, main_module);
js_check(worker.execute("bootstrapMainRuntime()"));
loop {
let result = (&mut *worker).await;
if let Err(err) = result {
eprintln!("{}", err.to_string());
}
}
}
async fn run_script(flags: DenoFlags, script: String) {
let main_module = ModuleSpecifier::resolve_url_or_path(&script).unwrap();
let global_state = create_global_state(flags);
let mut worker =
create_main_worker(global_state.clone(), main_module.clone());
// Setup runtime.
js_check(worker.execute("bootstrapMainRuntime()"));
debug!("main_module {}", main_module);
let mod_result = worker.execute_mod_async(&main_module, None, false).await;
if let Err(err) = mod_result {
print_err_and_exit(err);
}
if global_state.flags.lock_write {
if let Some(ref lockfile) = global_state.lockfile {
let g = lockfile.lock().unwrap();
if let Err(e) = g.write() {
print_err_and_exit(ErrBox::from(e));
}
} else {
eprintln!("--lock flag must be specified when using --lock-write");
std::process::exit(11);
}
}
js_check(worker.execute("window.dispatchEvent(new Event('load'))"));
let result = (&mut *worker).await;
js_check(result);
js_check(worker.execute("window.dispatchEvent(new Event('unload'))"));
}
async fn fmt_command(files: Option<Vec<String>>, check: bool) {
if let Err(err) = fmt::format_files(files, check) {
print_err_and_exit(err);
}
}
pub fn main() {
#[cfg(windows)]
ansi_term::enable_ansi_support().ok(); // For Windows 10
log::set_logger(&LOGGER).unwrap();
let args: Vec<String> = env::args().collect();
let flags = flags::flags_from_vec(args);
if let Some(ref v8_flags) = flags.v8_flags {
let mut v8_flags_ = v8_flags.clone();
v8_flags_.insert(0, "UNUSED_BUT_NECESSARY_ARG0".to_string());
v8_set_flags(v8_flags_);
}
let log_level = match flags.log_level {
Some(level) => level,
None => Level::Warn,
};
log::set_max_level(log_level.to_level_filter());
let fut = async move {
match flags.clone().subcommand {
DenoSubcommand::Bundle {
source_file,
out_file,
} => bundle_command(flags, source_file, out_file).await,
DenoSubcommand::Completions { buf } => {
print!("{}", std::str::from_utf8(&buf).unwrap());
}
DenoSubcommand::Eval { code } => eval_command(flags, code).await,
DenoSubcommand::Fetch { files } => fetch_command(flags, files).await,
DenoSubcommand::Format { check, files } => {
fmt_command(files, check).await
}
DenoSubcommand::Info { file } => info_command(flags, file).await,
DenoSubcommand::Install {
dir,
exe_name,
module_url,
args,
force,
} => install_command(flags, dir, exe_name, module_url, args, force).await,
DenoSubcommand::Repl => run_repl(flags).await,
DenoSubcommand::Run { script } => run_script(flags, script).await,
DenoSubcommand::Types => types_command(),
_ => panic!("bad subcommand"),
}
};
tokio_util::run_basic(fut);
}