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denoland-deno/cli/mainrt.rs
2024-07-23 00:54:29 +02:00

103 lines
2.4 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// Allow unused code warnings because we share
// code between the two bin targets.
#![allow(dead_code)]
#![allow(unused_imports)]
mod standalone;
mod args;
mod auth_tokens;
mod cache;
mod emit;
mod errors;
mod file_fetcher;
mod http_util;
mod js;
mod node;
mod npm;
mod resolver;
mod task_runner;
mod util;
mod version;
mod worker;
use deno_core::error::generic_error;
use deno_core::error::AnyError;
use deno_core::error::JsError;
use deno_runtime::fmt_errors::format_js_error;
use deno_runtime::tokio_util::create_and_run_current_thread_with_maybe_metrics;
pub use deno_runtime::UNSTABLE_GRANULAR_FLAGS;
use deno_terminal::colors;
use std::borrow::Cow;
use std::collections::HashMap;
use std::env;
use std::env::current_exe;
use crate::args::Flags;
#[allow(clippy::print_stderr)]
pub(crate) fn unstable_exit_cb(feature: &str, api_name: &str) {
eprintln!(
"Unstable API '{api_name}'. The `--unstable-{}` flag must be provided.",
feature
);
std::process::exit(70);
}
#[allow(clippy::print_stderr)]
fn exit_with_message(message: &str, code: i32) -> ! {
eprintln!(
"{}: {}",
colors::red_bold("error"),
message.trim_start_matches("error: ")
);
std::process::exit(code);
}
fn unwrap_or_exit<T>(result: Result<T, AnyError>) -> T {
match result {
Ok(value) => value,
Err(error) => {
let mut error_string = format!("{:?}", error);
if let Some(e) = error.downcast_ref::<JsError>() {
error_string = format_js_error(e);
}
exit_with_message(&error_string, 1);
}
}
}
fn load_env_vars(env_vars: &HashMap<String, String>) {
env_vars.iter().for_each(|env_var| {
if env::var(env_var.0).is_err() {
std::env::set_var(env_var.0, env_var.1);
}
})
}
fn main() {
let args: Vec<_> = env::args_os().collect();
let current_exe_path = current_exe().unwrap();
let standalone =
standalone::extract_standalone(&current_exe_path, Cow::Owned(args));
let future = async move {
match standalone {
Ok(Some(future)) => {
let (metadata, eszip) = future.await?;
util::logger::init(metadata.log_level);
load_env_vars(&metadata.env_vars_from_env_file);
let exit_code = standalone::run(eszip, metadata).await?;
std::process::exit(exit_code);
}
Ok(None) => Ok(()),
Err(err) => Err(err),
}
};
unwrap_or_exit(create_and_run_current_thread_with_maybe_metrics(future));
}