53d2c4191f
Update the comment on the `alias` entry to mention the second reason the source-inline is needed: keeping the upstream `ink` / `ink-text-input` graph out of the bundle (which fixed the startup deadlock in #31227). Code path is unchanged.
66 lines
2.5 KiB
JavaScript
66 lines
2.5 KiB
JavaScript
#!/usr/bin/env node
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// Bundles src/entry.tsx into a single self-contained dist/entry.js.
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// No runtime node_modules needed.
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import { build } from 'esbuild'
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import { readFileSync, writeFileSync } from 'node:fs'
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import { fileURLToPath } from 'node:url'
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import { dirname, resolve } from 'node:path'
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const here = dirname(fileURLToPath(import.meta.url))
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const root = resolve(here, '..')
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const out = resolve(root, 'dist/entry.js')
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// `react-devtools-core` is only imported when DEV=true at runtime (Ink dev
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// mode). Stub it out so the bundle doesn't carry the dep.
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const stubDevtools = {
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name: 'stub-react-devtools-core',
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setup(b) {
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b.onResolve({ filter: /^react-devtools-core$/ }, args => ({
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path: args.path,
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namespace: 'stub-devtools'
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}))
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b.onLoad({ filter: /.*/, namespace: 'stub-devtools' }, () => ({
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contents: 'export default { initialize() {}, connectToDevTools() {} }',
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loader: 'js'
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}))
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}
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}
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await build({
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entryPoints: [resolve(root, 'src/entry.tsx')],
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bundle: true,
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platform: 'node',
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format: 'esm',
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target: 'node20',
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outfile: out,
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jsx: 'automatic',
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jsxImportSource: 'react',
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// Skip the prebuilt @hermes/ink bundle and inline the source instead:
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// (1) esbuild's `__esm` helper does not await nested async init, so the
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// prebuilt bundle's lazy `render` would never resolve when nested in
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// this top-level Promise.all; (2) bundling from source also lets us
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// keep `ink-text-input` and the upstream `ink` graph OUT of the
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// bundle entirely — re-exporting them from entry-exports created a
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// circular async chain that hung the TUI at startup with only ANSI
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// reset bytes on screen (#31227).
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alias: { '@hermes/ink': resolve(root, 'packages/hermes-ink/src/entry-exports.ts') },
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plugins: [stubDevtools],
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// Some transitive deps use CommonJS `require(...)` at runtime. ESM bundles
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// don't get a `require` binding automatically, so we inject one.
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banner: {
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js: "import { createRequire as __cr } from 'node:module'; const require = __cr(import.meta.url);"
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},
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logLevel: 'info'
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})
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// esbuild preserves the shebang from src/entry.tsx into the bundle, but Nix's
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// patchShebangs phase mangles `/usr/bin/env -S node --foo --bar` (it strips
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// the `node` token, leaving a broken interpreter). The hermes_cli launcher
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// always invokes this file as `node dist/entry.js` anyway, so the shebang is
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// redundant — strip it.
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const body = readFileSync(out, 'utf8')
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if (body.startsWith('#!')) {
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writeFileSync(out, body.slice(body.indexOf('\n') + 1))
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}
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console.log(`built ${out}`)
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