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denoland-deno/cli/ops/mod.rs
Nayeem Rahman c1c8eb3d55
build: allow disabling snapshots for dev (#20048)
Closes #19399 (running without snapshots at all was suggested as an
alternative solution).

Adds a `__runtime_js_sources` pseudo-private feature to load extension
JS sources at runtime for faster development, instead of building and
loading snapshots or embedding sources in the binary. Will only work in
a development environment obviously.

Try running `cargo test --features __runtime_js_sources
integration::node_unit_tests::os_test`. Then break some behaviour in
`ext/node/polyfills/os.ts` e.g. make `function cpus() {}` return an
empty array, and run it again. Fix and then run again. No more build
time in between.
2023-08-06 01:47:15 +02:00

53 lines
1.4 KiB
Rust

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::sync::Arc;
use crate::npm::CliNpmResolver;
use deno_core::error::AnyError;
use deno_core::op;
use deno_core::Extension;
use deno_core::OpState;
pub mod bench;
pub mod testing;
pub fn cli_exts(npm_resolver: Arc<CliNpmResolver>) -> Vec<Extension> {
vec![
#[cfg(not(feature = "__runtime_js_sources"))]
cli::init_ops(npm_resolver),
#[cfg(feature = "__runtime_js_sources")]
cli::init_ops_and_esm(npm_resolver),
]
}
// ESM parts duplicated in `../build.rs`. Keep in sync!
deno_core::extension!(cli,
deps = [runtime],
ops = [op_npm_process_state],
esm_entry_point = "ext:cli/99_main.js",
esm = [
dir "js",
"40_testing.js",
"99_main.js"
],
options = {
npm_resolver: Arc<CliNpmResolver>,
},
state = |state, options| {
state.put(options.npm_resolver);
},
customizer = |ext: &mut deno_core::Extension| {
ext.esm_files.to_mut().push(deno_core::ExtensionFileSource {
specifier: "ext:cli/runtime/js/99_main.js",
code: deno_core::ExtensionFileSourceCode::LoadedFromFsDuringSnapshot(
deno_runtime::js::PATH_FOR_99_MAIN_JS,
),
});
},
);
#[op]
fn op_npm_process_state(state: &mut OpState) -> Result<String, AnyError> {
let npm_resolver = state.borrow_mut::<Arc<CliNpmResolver>>();
Ok(npm_resolver.get_npm_process_state())
}