mirror of
https://github.com/denoland/deno.git
synced 2024-10-31 09:14:20 -04:00
341 lines
9.9 KiB
Rust
341 lines
9.9 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::custom_error;
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use deno_core::op_sync;
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use deno_core::serde::Deserialize;
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use deno_core::serde_json;
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use deno_core::serde_json::json;
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use deno_core::serde_json::Value;
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use deno_core::JsRuntime;
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use deno_core::RuntimeOptions;
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use regex::Regex;
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use std::collections::HashMap;
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use std::env;
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use std::path::Path;
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use std::path::PathBuf;
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// TODO(bartlomieju): this module contains a lot of duplicated
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// logic with `runtime/build.rs`, factor out to `deno_core`.
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fn create_snapshot(
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mut js_runtime: JsRuntime,
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snapshot_path: &Path,
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files: Vec<PathBuf>,
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) {
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// TODO(nayeemrmn): https://github.com/rust-lang/cargo/issues/3946 to get the
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// workspace root.
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let display_root = Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap();
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for file in files {
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println!("cargo:rerun-if-changed={}", file.display());
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let display_path = file.strip_prefix(display_root).unwrap();
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let display_path_str = display_path.display().to_string();
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js_runtime
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.execute(
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&("deno:".to_string() + &display_path_str.replace('\\', "/")),
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&std::fs::read_to_string(&file).unwrap(),
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)
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.unwrap();
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}
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let snapshot = js_runtime.snapshot();
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let snapshot_slice: &[u8] = &*snapshot;
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println!("Snapshot size: {}", snapshot_slice.len());
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std::fs::write(&snapshot_path, snapshot_slice).unwrap();
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println!("Snapshot written to: {} ", snapshot_path.display());
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}
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#[derive(Debug, Deserialize)]
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struct LoadArgs {
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/// The fully qualified specifier that should be loaded.
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specifier: String,
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}
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fn create_compiler_snapshot(
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snapshot_path: &Path,
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files: Vec<PathBuf>,
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cwd: &Path,
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) {
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// libs that are being provided by op crates.
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let mut op_crate_libs = HashMap::new();
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op_crate_libs.insert("deno.console", deno_console::get_declaration());
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op_crate_libs.insert("deno.url", deno_url::get_declaration());
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op_crate_libs.insert("deno.web", deno_web::get_declaration());
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op_crate_libs.insert("deno.fetch", deno_fetch::get_declaration());
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op_crate_libs.insert("deno.webgpu", deno_webgpu::get_declaration());
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op_crate_libs.insert("deno.websocket", deno_websocket::get_declaration());
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op_crate_libs.insert("deno.webstorage", deno_webstorage::get_declaration());
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op_crate_libs.insert("deno.crypto", deno_crypto::get_declaration());
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op_crate_libs.insert(
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"deno.broadcast_channel",
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deno_broadcast_channel::get_declaration(),
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);
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// ensure we invalidate the build properly.
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for (_, path) in op_crate_libs.iter() {
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println!("cargo:rerun-if-changed={}", path.display());
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}
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// libs that should be loaded into the isolate before snapshotting.
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let libs = vec![
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// Deno custom type libraries
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"deno.window",
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"deno.worker",
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"deno.shared_globals",
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"deno.ns",
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"deno.unstable",
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// Deno built-in type libraries
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"es5",
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"es2015.collection",
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"es2015.core",
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"es2015",
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"es2015.generator",
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"es2015.iterable",
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"es2015.promise",
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"es2015.proxy",
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"es2015.reflect",
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"es2015.symbol",
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"es2015.symbol.wellknown",
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"es2016.array.include",
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"es2016",
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"es2017",
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"es2017.intl",
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"es2017.object",
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"es2017.sharedmemory",
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"es2017.string",
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"es2017.typedarrays",
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"es2018.asyncgenerator",
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"es2018.asynciterable",
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"es2018",
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"es2018.intl",
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"es2018.promise",
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"es2018.regexp",
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"es2019.array",
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"es2019",
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"es2019.object",
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"es2019.string",
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"es2019.symbol",
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"es2020.bigint",
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"es2020",
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"es2020.intl",
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"es2020.promise",
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"es2020.sharedmemory",
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"es2020.string",
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"es2020.symbol.wellknown",
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"es2021",
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"es2021.promise",
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"es2021.string",
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"es2021.weakref",
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"esnext",
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"esnext.intl",
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"esnext.promise",
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"esnext.string",
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"esnext.weakref",
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];
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let path_dts = cwd.join("dts");
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// ensure we invalidate the build properly.
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for name in libs.iter() {
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println!(
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"cargo:rerun-if-changed={}",
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path_dts.join(format!("lib.{}.d.ts", name)).display()
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);
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}
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// create a copy of the vector that includes any op crate libs to be passed
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// to the JavaScript compiler to build into the snapshot
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let mut build_libs = libs.clone();
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for (op_lib, _) in op_crate_libs.iter() {
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build_libs.push(op_lib.to_owned());
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}
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let re_asset = Regex::new(r"asset:/{3}lib\.(\S+)\.d\.ts").expect("bad regex");
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let build_specifier = "asset:///bootstrap.ts";
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let mut js_runtime = JsRuntime::new(RuntimeOptions {
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will_snapshot: true,
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..Default::default()
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});
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js_runtime.register_op(
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"op_build_info",
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op_sync(move |_state, _args: Value, _: ()| {
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Ok(json!({
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"buildSpecifier": build_specifier,
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"libs": build_libs,
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}))
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}),
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);
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// using the same op that is used in `tsc.rs` for loading modules and reading
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// files, but a slightly different implementation at build time.
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js_runtime.register_op(
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"op_load",
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op_sync(move |_state, args, _: ()| {
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let v: LoadArgs = serde_json::from_value(args)?;
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// we need a basic file to send to tsc to warm it up.
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if v.specifier == build_specifier {
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Ok(json!({
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"data": r#"console.log("hello deno!");"#,
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"hash": "1",
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// this corresponds to `ts.ScriptKind.TypeScript`
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"scriptKind": 3
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}))
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// specifiers come across as `asset:///lib.{lib_name}.d.ts` and we need to
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// parse out just the name so we can lookup the asset.
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} else if let Some(caps) = re_asset.captures(&v.specifier) {
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if let Some(lib) = caps.get(1).map(|m| m.as_str()) {
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// if it comes from an op crate, we were supplied with the path to the
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// file.
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let path = if let Some(op_crate_lib) = op_crate_libs.get(lib) {
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op_crate_lib.clone()
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// otherwise we are will generate the path ourself
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} else {
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path_dts.join(format!("lib.{}.d.ts", lib))
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};
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let data = std::fs::read_to_string(path)?;
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Ok(json!({
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"data": data,
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"hash": "1",
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// this corresponds to `ts.ScriptKind.TypeScript`
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"scriptKind": 3
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}))
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} else {
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Err(custom_error(
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"InvalidSpecifier",
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format!("An invalid specifier was requested: {}", v.specifier),
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))
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}
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} else {
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Err(custom_error(
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"InvalidSpecifier",
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format!("An invalid specifier was requested: {}", v.specifier),
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))
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}
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}),
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);
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js_runtime.sync_ops_cache();
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create_snapshot(js_runtime, snapshot_path, files);
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}
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fn ts_version() -> String {
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std::fs::read_to_string("tsc/00_typescript.js")
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.unwrap()
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.lines()
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.find(|l| l.contains("ts.version = "))
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.expect(
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"Failed to find the pattern `ts.version = ` in typescript source code",
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)
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.chars()
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.skip_while(|c| !char::is_numeric(*c))
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.take_while(|c| *c != '"')
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.collect::<String>()
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}
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fn git_commit_hash() -> String {
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if let Ok(output) = std::process::Command::new("git")
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.arg("rev-list")
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.arg("-1")
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.arg("HEAD")
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.output()
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{
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if output.status.success() {
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std::str::from_utf8(&output.stdout[..40])
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.unwrap()
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.to_string()
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} else {
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// When not in git repository
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// (e.g. when the user install by `cargo install deno`)
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"UNKNOWN".to_string()
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}
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} else {
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// When there is no git command for some reason
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"UNKNOWN".to_string()
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}
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}
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fn main() {
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// Skip building from docs.rs.
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if env::var_os("DOCS_RS").is_some() {
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return;
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}
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// To debug snapshot issues uncomment:
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// op_fetch_asset::trace_serializer();
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println!("cargo:rustc-env=TS_VERSION={}", ts_version());
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println!("cargo:rustc-env=GIT_COMMIT_HASH={}", git_commit_hash());
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println!(
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"cargo:rustc-env=DENO_CONSOLE_LIB_PATH={}",
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deno_console::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_URL_LIB_PATH={}",
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deno_url::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_WEB_LIB_PATH={}",
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deno_web::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_FETCH_LIB_PATH={}",
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deno_fetch::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_WEBGPU_LIB_PATH={}",
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deno_webgpu::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_WEBSOCKET_LIB_PATH={}",
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deno_websocket::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_WEBSTORAGE_LIB_PATH={}",
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deno_webstorage::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_CRYPTO_LIB_PATH={}",
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deno_crypto::get_declaration().display()
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);
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println!(
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"cargo:rustc-env=DENO_BROADCAST_CHANNEL_LIB_PATH={}",
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deno_broadcast_channel::get_declaration().display()
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);
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println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
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println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());
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if let Ok(c) = env::var("DENO_CANARY") {
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println!("cargo:rustc-env=DENO_CANARY={}", c);
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}
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let c = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap());
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let o = PathBuf::from(env::var_os("OUT_DIR").unwrap());
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// Main snapshot
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let compiler_snapshot_path = o.join("COMPILER_SNAPSHOT.bin");
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let js_files = get_js_files("tsc");
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create_compiler_snapshot(&compiler_snapshot_path, js_files, &c);
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#[cfg(target_os = "windows")]
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{
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let mut res = winres::WindowsResource::new();
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res.set_icon("deno.ico");
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res.set_language(winapi::um::winnt::MAKELANGID(
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winapi::um::winnt::LANG_ENGLISH,
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winapi::um::winnt::SUBLANG_ENGLISH_US,
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));
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res.compile().unwrap();
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}
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}
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fn get_js_files(d: &str) -> Vec<PathBuf> {
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let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
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let mut js_files = std::fs::read_dir(d)
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.unwrap()
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.map(|dir_entry| {
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let file = dir_entry.unwrap();
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manifest_dir.join(file.path())
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})
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.filter(|path| path.extension().unwrap_or_default() == "js")
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.collect::<Vec<PathBuf>>();
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js_files.sort();
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js_files
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}
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