mirror of
https://github.com/denoland/deno.git
synced 2024-12-11 10:07:54 -05:00
105 lines
2.9 KiB
Rust
105 lines
2.9 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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use deno_core::include_crate_modules;
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use deno_core::Isolate;
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use deno_core::StartupData;
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use std::collections::HashMap;
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use std::env;
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use std::path::PathBuf;
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fn main() {
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// Don't build V8 if "cargo doc" is being run. This is to support docs.rs.
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if env::var_os("RUSTDOCFLAGS").is_some() {
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return;
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}
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// To debug snapshot issues uncomment:
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// deno_typescript::trace_serializer();
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println!(
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"cargo:rustc-env=TS_VERSION={}",
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deno_typescript::ts_version()
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);
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let extern_crate_modules = include_crate_modules![deno_core];
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// The generation of snapshots is slow and often unnecessary. Until we figure
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// out how to speed it up, or avoid it when unnecessary, this env var provides
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// an escape hatch for the impatient hacker in need of faster incremental
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// builds.
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// USE WITH EXTREME CAUTION
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if env::var_os("NO_BUILD_SNAPSHOTS").is_some() {
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println!("NO_BUILD_SNAPSHOTS is set, skipping snapshot building.");
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return;
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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 root_names = vec![c.join("js/main.ts")];
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let bundle_path = o.join("CLI_SNAPSHOT.js");
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let snapshot_path = o.join("CLI_SNAPSHOT.bin");
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let main_module_name = deno_typescript::compile_bundle(
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&bundle_path,
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root_names,
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Some(extern_crate_modules.clone()),
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)
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.expect("Bundle compilation failed");
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assert!(bundle_path.exists());
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let runtime_isolate = &mut Isolate::new(StartupData::None, true);
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deno_typescript::mksnapshot_bundle(
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runtime_isolate,
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&snapshot_path,
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&bundle_path,
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&main_module_name,
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)
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.expect("Failed to create snapshot");
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// Compiler snapshot
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let root_names = vec![c.join("js/compiler.ts")];
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let bundle_path = o.join("COMPILER_SNAPSHOT.js");
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let snapshot_path = o.join("COMPILER_SNAPSHOT.bin");
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let main_module_name = deno_typescript::compile_bundle(
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&bundle_path,
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root_names,
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Some(extern_crate_modules),
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)
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.expect("Bundle compilation failed");
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assert!(bundle_path.exists());
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let runtime_isolate = &mut Isolate::new(StartupData::None, true);
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let mut custom_libs: HashMap<String, PathBuf> = HashMap::new();
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custom_libs.insert(
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"lib.deno.window.d.ts".to_string(),
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c.join("js/lib.deno.window.d.ts"),
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);
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custom_libs.insert(
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"lib.deno.worker.d.ts".to_string(),
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c.join("js/lib.deno.worker.d.ts"),
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);
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custom_libs.insert(
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"lib.deno.shared_globals.d.ts".to_string(),
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c.join("js/lib.deno.shared_globals.d.ts"),
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);
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custom_libs.insert(
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"lib.deno.ns.d.ts".to_string(),
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c.join("js/lib.deno.ns.d.ts"),
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);
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runtime_isolate.register_op(
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"op_fetch_asset",
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deno_typescript::op_fetch_asset(custom_libs),
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);
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deno_typescript::mksnapshot_bundle_ts(
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runtime_isolate,
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&snapshot_path,
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&bundle_path,
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&main_module_name,
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)
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.expect("Failed to create snapshot");
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}
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