orca/scripts/build-relay.mjs
2026-04-13 19:23:09 -07:00

55 lines
1.9 KiB
JavaScript

#!/usr/bin/env node
/**
* Bundle the relay daemon into a single relay.js file per platform.
*
* The relay runs on remote hosts via `node relay.js`, so it must be a
* self-contained CommonJS bundle with no external dependencies beyond
* Node.js built-ins. Native addons (node-pty, @parcel/watcher) are
* marked external and expected to be installed on the remote or
* gracefully degraded.
*/
import { build } from 'esbuild'
import { createHash } from 'crypto'
import { mkdirSync, readFileSync, writeFileSync } from 'fs'
import { join, dirname } from 'path'
import { fileURLToPath } from 'url'
const __dirname = dirname(fileURLToPath(import.meta.url))
const ROOT = join(__dirname, '..')
const RELAY_ENTRY = join(ROOT, 'src', 'relay', 'relay.ts')
const PLATFORMS = ['linux-x64', 'linux-arm64', 'darwin-x64', 'darwin-arm64']
const RELAY_VERSION = '0.1.0'
for (const platform of PLATFORMS) {
const outDir = join(ROOT, 'out', 'relay', platform)
mkdirSync(outDir, { recursive: true })
await build({
entryPoints: [RELAY_ENTRY],
bundle: true,
platform: 'node',
target: 'node18',
format: 'cjs',
outfile: join(outDir, 'relay.js'),
// Native addons cannot be bundled — they must exist on the remote host.
// The relay gracefully degrades when they are absent.
external: ['node-pty', '@parcel/watcher'],
sourcemap: false,
minify: true,
define: {
'process.env.NODE_ENV': '"production"'
}
})
// Why: include a content hash so the deploy check detects code changes
// even when RELAY_VERSION hasn't been bumped (common during development).
const relayContent = readFileSync(join(outDir, 'relay.js'))
const hash = createHash('sha256').update(relayContent).digest('hex').slice(0, 12)
writeFileSync(join(outDir, '.version'), `${RELAY_VERSION}+${hash}`)
console.log(`Built relay for ${platform}${outDir}/relay.js`)
}
console.log('Relay build complete.')