mirror of
https://github.com/denoland/deno.git
synced 2024-12-28 01:59:06 -05:00
362 lines
9.6 KiB
Rust
362 lines
9.6 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use std::env;
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use std::path::PathBuf;
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#[cfg(all(
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not(feature = "docsrs"),
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not(feature = "dont_create_runtime_snapshot")
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))]
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mod startup_snapshot {
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use std::path::Path;
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use super::*;
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use deno_ast::MediaType;
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use deno_ast::ParseParams;
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use deno_ast::SourceTextInfo;
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use deno_cache::SqliteBackedCache;
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use deno_core::error::AnyError;
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use deno_core::include_js_files;
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use deno_core::snapshot_util::*;
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use deno_core::Extension;
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use deno_core::ExtensionFileSource;
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fn transpile_ts_for_snapshotting(
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file_source: &ExtensionFileSource,
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) -> Result<String, AnyError> {
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let media_type = MediaType::from(Path::new(&file_source.specifier));
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let should_transpile = match media_type {
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MediaType::JavaScript => false,
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MediaType::Mjs => false,
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MediaType::TypeScript => true,
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_ => panic!(
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"Unsupported media type for snapshotting {media_type:?} for file {}",
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file_source.specifier
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),
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};
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let code = file_source.code.load()?;
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if !should_transpile {
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return Ok(code);
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}
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let parsed = deno_ast::parse_module(ParseParams {
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specifier: file_source.specifier.to_string(),
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text_info: SourceTextInfo::from_string(code),
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media_type,
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capture_tokens: false,
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scope_analysis: false,
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maybe_syntax: None,
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})?;
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let transpiled_source = parsed.transpile(&deno_ast::EmitOptions {
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imports_not_used_as_values: deno_ast::ImportsNotUsedAsValues::Remove,
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inline_source_map: false,
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..Default::default()
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})?;
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Ok(transpiled_source.text)
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}
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struct Permissions;
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impl deno_fetch::FetchPermissions for Permissions {
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fn check_net_url(
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&mut self,
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_url: &deno_core::url::Url,
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_read(
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&mut self,
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_p: &Path,
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_websocket::WebSocketPermissions for Permissions {
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fn check_net_url(
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&mut self,
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_url: &deno_core::url::Url,
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_web::TimersPermission for Permissions {
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fn allow_hrtime(&mut self) -> bool {
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unreachable!("snapshotting!")
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}
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fn check_unstable(
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&self,
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_state: &deno_core::OpState,
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_api_name: &'static str,
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) {
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unreachable!("snapshotting!")
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}
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}
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impl deno_ffi::FfiPermissions for Permissions {
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fn check(
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&mut self,
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_path: Option<&Path>,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_napi::NapiPermissions for Permissions {
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fn check(
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&mut self,
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_path: Option<&Path>,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_flash::FlashPermissions for Permissions {
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fn check_net<T: AsRef<str>>(
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&mut self,
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_host: &(T, Option<u16>),
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_node::NodePermissions for Permissions {
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fn check_read(
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&mut self,
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_p: &Path,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_net::NetPermissions for Permissions {
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fn check_net<T: AsRef<str>>(
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&mut self,
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_host: &(T, Option<u16>),
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_read(
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&mut self,
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_p: &Path,
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_write(
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&mut self,
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_p: &Path,
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_api_name: &str,
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) -> Result<(), deno_core::error::AnyError> {
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unreachable!("snapshotting!")
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}
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}
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impl deno_fs::FsPermissions for Permissions {
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fn check_read(
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&mut self,
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_path: &Path,
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_api_name: &str,
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) -> Result<(), AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_read_blind(
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&mut self,
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_path: &Path,
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_display: &str,
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_api_name: &str,
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) -> Result<(), AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_write(
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&mut self,
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_path: &Path,
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_api_name: &str,
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) -> Result<(), AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_read_all(&mut self, _api_name: &str) -> Result<(), AnyError> {
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unreachable!("snapshotting!")
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}
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fn check_write_all(&mut self, _api_name: &str) -> Result<(), AnyError> {
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unreachable!("snapshotting!")
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}
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}
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fn create_runtime_snapshot(
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snapshot_path: PathBuf,
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maybe_additional_extension: Option<Extension>,
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) {
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let runtime_extension = Extension::builder_with_deps(
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"runtime",
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&[
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"deno_webidl",
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"deno_console",
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"deno_url",
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"deno_tls",
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"deno_web",
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"deno_fetch",
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"deno_cache",
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"deno_websocket",
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"deno_webstorage",
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"deno_crypto",
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"deno_webgpu",
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"deno_broadcast_channel",
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// FIXME(bartlomieju): this should be reenabled
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// "deno_node",
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"deno_ffi",
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"deno_net",
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"deno_napi",
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"deno_http",
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"deno_flash",
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"deno_io",
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"deno_fs",
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],
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)
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.esm(include_js_files!(
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dir "js",
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"01_errors.js",
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"01_version.ts",
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"06_util.js",
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"10_permissions.js",
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"11_workers.js",
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"13_buffer.js",
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"30_os.js",
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"40_fs_events.js",
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"40_http.js",
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"40_process.js",
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"40_signals.js",
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"40_tty.js",
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"41_prompt.js",
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"90_deno_ns.js",
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"98_global_scope.js",
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))
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.build();
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let mut extensions: Vec<Extension> = vec![
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deno_webidl::init_esm(),
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deno_console::init_esm(),
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deno_url::init_ops_and_esm(),
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deno_tls::init_ops(),
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deno_web::init_ops_and_esm::<Permissions>(
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deno_web::BlobStore::default(),
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Default::default(),
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),
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deno_fetch::init_ops_and_esm::<Permissions>(Default::default()),
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deno_cache::init_ops_and_esm::<SqliteBackedCache>(None),
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deno_websocket::init_ops_and_esm::<Permissions>(
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"".to_owned(),
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None,
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None,
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),
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deno_webstorage::init_ops_and_esm(None),
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deno_crypto::init_ops_and_esm(None),
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deno_webgpu::init_ops_and_esm(false),
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deno_broadcast_channel::init_ops_and_esm(
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deno_broadcast_channel::InMemoryBroadcastChannel::default(),
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false, // No --unstable.
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),
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deno_ffi::init_ops_and_esm::<Permissions>(false),
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deno_net::init_ops_and_esm::<Permissions>(
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None, false, // No --unstable.
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None,
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),
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deno_napi::init_ops::<Permissions>(),
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deno_http::init_ops_and_esm(),
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deno_io::init_ops_and_esm(Default::default()),
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deno_fs::init_ops_and_esm::<Permissions>(false),
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deno_flash::init_ops_and_esm::<Permissions>(false), // No --unstable
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runtime_extension,
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// FIXME(bartlomieju): these extensions are specified last, because they
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// depend on `runtime`, even though it should be other way around
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deno_node::init_ops_and_esm::<Permissions>(None),
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deno_node::init_polyfill_ops_and_esm(),
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];
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if let Some(additional_extension) = maybe_additional_extension {
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extensions.push(additional_extension);
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}
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create_snapshot(CreateSnapshotOptions {
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cargo_manifest_dir: env!("CARGO_MANIFEST_DIR"),
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snapshot_path,
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startup_snapshot: None,
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extensions,
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compression_cb: Some(Box::new(|vec, snapshot_slice| {
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lzzzz::lz4_hc::compress_to_vec(
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snapshot_slice,
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vec,
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lzzzz::lz4_hc::CLEVEL_MAX,
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)
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.expect("snapshot compression failed");
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})),
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snapshot_module_load_cb: Some(Box::new(transpile_ts_for_snapshotting)),
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});
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}
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pub fn build_snapshot(runtime_snapshot_path: PathBuf) {
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#[allow(unused_mut, unused_assignments)]
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let mut maybe_additional_extension = None;
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#[cfg(not(feature = "snapshot_from_snapshot"))]
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{
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use deno_core::ExtensionFileSourceCode;
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maybe_additional_extension = Some(
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Extension::builder_with_deps("runtime_main", &["runtime"])
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.esm(vec![ExtensionFileSource {
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specifier: "js/99_main.js".to_string(),
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code: ExtensionFileSourceCode::IncludedInBinary(include_str!(
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"js/99_main.js"
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)),
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}])
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.build(),
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);
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}
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create_runtime_snapshot(runtime_snapshot_path, maybe_additional_extension);
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}
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}
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fn main() {
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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=TARGET={}", env::var("TARGET").unwrap());
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println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").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 runtime_snapshot_path = o.join("RUNTIME_SNAPSHOT.bin");
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// If we're building on docs.rs we just create
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// and empty snapshot file and return, because `rusty_v8`
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// doesn't actually compile on docs.rs
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if env::var_os("DOCS_RS").is_some() {
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let snapshot_slice = &[];
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#[allow(clippy::needless_borrow)]
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std::fs::write(&runtime_snapshot_path, snapshot_slice).unwrap();
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}
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#[cfg(all(
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not(feature = "docsrs"),
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not(feature = "dont_create_runtime_snapshot")
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))]
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startup_snapshot::build_snapshot(runtime_snapshot_path)
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}
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