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Support building for externally shared js builtins (#91)
* Support building for externally shared js builtins Initial support for loading unbundled module in `AddExternalizedBuiltin`. - Reduces downstream distribution package size (by not shipping wasm twice and not base64-encoding it) - Provides a cleaner stacktrace - Easier to patch To enable this, pass `EXTERNAL_PATH=/global/node_modules/cjs-module-lexer` to `build.js`. You shall also pass this path to `--shared-builtin-cjs_module_lexer/dist/lexer-path` in Node.js's `configure.py`, with the extra `/dist` part in the path. Signed-off-by: Zephyr Lykos <git@mochaa.ws> * Inline wasm binary loader * Refactor CI workflow --------- Signed-off-by: Zephyr Lykos <git@mochaa.ws>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,25 +1,72 @@ | ||
| const fs = require('fs'); | ||
| const terser = require('terser'); | ||
| const { buildSync } = require('esbuild'); | ||
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| const MINIFY = true; | ||
| const { EXTERNAL_PATH } = process.env; | ||
| const MINIFY = !EXTERNAL_PATH; | ||
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| try { fs.mkdirSync('./dist'); } | ||
| catch (e) {} | ||
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| const wasmBuffer = fs.readFileSync('./lib/lexer.wasm'); | ||
| const jsSource = fs.readFileSync('./src/lexer.js').toString(); | ||
| const pjson = JSON.parse(fs.readFileSync('./package.json').toString()); | ||
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| const jsSourceProcessed = jsSource.replace('WASM_BINARY', wasmBuffer.toString('base64')); | ||
| buildSync({ | ||
| entryPoints: ['./src/lexer.js'], | ||
| outfile: './dist/lexer.mjs', | ||
| bundle: true, | ||
| minify: MINIFY, | ||
| platform: 'node', | ||
| format: 'esm', | ||
| banner: { | ||
| js: `/* cjs-module-lexer ${pjson.version} */` | ||
| }, | ||
| define: EXTERNAL_PATH ? { | ||
| WASM_BINARY: 'undefined', | ||
| EXTERNAL_PATH: `'${EXTERNAL_PATH}'`, | ||
| } : { | ||
| WASM_BINARY: `'${wasmBuffer.toString('base64')}'`, | ||
| EXTERNAL_PATH: 'undefined' | ||
| } | ||
| }) | ||
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| const minified = MINIFY && terser.minify(jsSourceProcessed, { | ||
| module: true, | ||
| output: { | ||
| preamble: `/* cjs-module-lexer ${pjson.version} */` | ||
| if (EXTERNAL_PATH) { | ||
| buildSync({ | ||
| stdin: { | ||
| contents: `'use strict'; | ||
| let lazy; | ||
| async function init () { | ||
| if (!lazy) { | ||
| lazy = await import(require('node:url').pathToFileURL(require('node:module').createRequire('${EXTERNAL_PATH}/dist/lexer.js').resolve('./lexer.mjs'))); | ||
| } | ||
| }); | ||
| module.exports = lazy; | ||
| return lazy.init(); | ||
| } | ||
| function parse (source, name = '@') { | ||
| if (!lazy) | ||
| throw new Error('Not initialized'); | ||
| return lazy.parse(source, name); | ||
| } | ||
| if (minified.error) | ||
| throw minified.error; | ||
| module.exports = { init, parse };`, | ||
| loader: 'js', | ||
| }, | ||
| outfile: './dist/lexer.js', | ||
| minify: MINIFY, | ||
| platform: 'node', | ||
| format: 'cjs', | ||
| }); | ||
| } else { | ||
| buildSync({ | ||
| entryPoints: ['./dist/lexer.mjs'], | ||
| outfile: './dist/lexer.js', | ||
| minify: MINIFY, | ||
| platform: 'node', | ||
| format: 'cjs', | ||
| banner: { | ||
| js: `/* cjs-module-lexer ${pjson.version} */` | ||
| } | ||
| }) | ||
| } | ||
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| fs.writeFileSync('./dist/lexer.mjs', minified ? minified.code : jsSourceProcessed); |
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