Files
orca/mobile/scripts/native-client.mjs
T
Neil 4b347681bc feat(mobile): skip dev-client rebuilds when the Expo native fingerprint is unchanged (#33410)
Add `pnpm native ensure <ios|android>`, which installs a cached dev-client
build keyed by the Expo fingerprint and only runs `expo run` on a miss.
The cache lives in the user cache dir so every worktree shares it, and
app.config.js registers it as Expo's buildCacheProvider so plain
`expo run` reuses hits too. A report-only PR job flags fingerprint
changes against the base in the step summary.
2026-10-24 23:08:43 -07:00

370 lines
12 KiB
JavaScript

#!/usr/bin/env node
// Installs the Orca dev client, rebuilding only when the Expo fingerprint of its native inputs
// changed. Builds are cached per fingerprint in the user cache dir, so every worktree reuses them.
//
// node scripts/native-client.mjs ensure <ios|android> [--device <name|udid|serial>] [--rebuild]
// node scripts/native-client.mjs fingerprint [--project <dir>] [--out <file>]
// node scripts/native-client.mjs compare <base.json> <head.json> [--project <dir>] [--summary <file>]
import { execFile, spawn } from 'node:child_process'
import fs from 'node:fs'
import path from 'node:path'
import process from 'node:process'
import { promisify } from 'node:util'
import nativeBuildCache from './native-build-cache.cjs'
const execFileAsync = promisify(execFile)
const PLATFORMS = ['ios', 'android']
const STAMP_FILE = '.orca-native-fingerprint'
const USAGE = `Usage:
native-client.mjs ensure <ios|android> [--device <name|udid|serial>] [--rebuild]
native-client.mjs fingerprint [--project <dir>] [--out <file>]
native-client.mjs compare <base.json> <head.json> [--project <dir>] [--summary <file>]`
export function parseArgs(argv) {
const positional = []
const flags = {}
for (let i = 0; i < argv.length; i++) {
const arg = argv[i]
if (arg === '--rebuild' || arg === '--help' || arg === '-h') {
flags[arg.replace(/^-+/, '')] = true
} else if (arg.startsWith('--')) {
const value = argv[i + 1]
if (value === undefined || value.startsWith('--')) {
throw new Error(`${arg} needs a value`)
}
flags[arg.slice(2)] = value
i++
} else {
positional.push(arg)
}
}
return { command: positional[0], positional: positional.slice(1), flags }
}
function log(message) {
console.log(`[native] ${message}`)
}
function shortHash(hash) {
return hash.slice(0, 12)
}
function runInherited(command, args, options = {}) {
return new Promise((resolve, reject) => {
const child = spawn(command, args, {
stdio: 'inherit',
shell: process.platform === 'win32',
...options
})
child.on('error', reject)
child.on('exit', (code, signal) => {
if (code === 0) {
resolve()
} else {
reject(
new Error(`${path.basename(command)} ${args.join(' ')} exited with ${signal ?? code}`)
)
}
})
})
}
function readStamp(nativeDir) {
try {
return fs.readFileSync(path.join(nativeDir, STAMP_FILE), 'utf8').trim()
} catch {
return null
}
}
// --- iOS Simulator ---------------------------------------------------------------------------
export function pickIosSimulator(devicesJson, requested) {
const simulators = Object.entries(devicesJson.devices ?? {}).flatMap(([runtime, list]) =>
runtime.includes('iOS') ? list.filter((device) => device.isAvailable !== false) : []
)
if (requested) {
return (
simulators.find((device) => device.udid === requested) ??
simulators.find((device) => device.name === requested) ??
null
)
}
return simulators.find((device) => device.state === 'Booted') ?? null
}
async function installOnIosSimulator(appPath, requested) {
if (process.platform !== 'darwin') {
throw new Error('iOS Simulator installs require macOS and Xcode.')
}
const { stdout } = await execFileAsync(
'xcrun',
['simctl', 'list', 'devices', 'available', '-j'],
{
encoding: 'utf8',
maxBuffer: 16 * 1024 * 1024
}
)
const simulator = pickIosSimulator(JSON.parse(stdout), requested)
if (!simulator) {
throw new Error(
requested
? `No available iOS simulator named or with UDID "${requested}".`
: 'No booted iOS simulator. Boot one or pass --device <name|udid>.'
)
}
if (simulator.state !== 'Booted') {
// Boots headless; Simulator.app is not opened or focused.
log(`Booting ${simulator.name}`)
await execFileAsync('xcrun', ['simctl', 'boot', simulator.udid])
}
await execFileAsync('xcrun', ['simctl', 'install', simulator.udid, appPath])
return `${simulator.name} (${simulator.udid})`
}
// --- Android ---------------------------------------------------------------------------------
function adbPath() {
const sdk = process.env.ANDROID_HOME || process.env.ANDROID_SDK_ROOT
if (sdk) {
const candidate = path.join(
sdk,
'platform-tools',
process.platform === 'win32' ? 'adb.exe' : 'adb'
)
if (fs.existsSync(candidate)) {
return candidate
}
}
return 'adb'
}
export function parseAdbDevices(stdout) {
return stdout
.split(/\r?\n/)
.slice(1)
.map((line) => line.trim().split(/\s+/))
.filter(([serial, state]) => serial && state === 'device')
.map(([serial]) => serial)
}
async function resolveAndroidSerial(adb, requested) {
const { stdout } = await execFileAsync(adb, ['devices'], { encoding: 'utf8' })
const serials = parseAdbDevices(stdout)
if (requested) {
if (serials.includes(requested)) {
return requested
}
for (const serial of serials.filter((s) => s.startsWith('emulator-'))) {
const { stdout: avd } = await execFileAsync(adb, ['-s', serial, 'emu', 'avd', 'name'], {
encoding: 'utf8'
}).catch(() => ({ stdout: '' }))
if (avd.split(/\r?\n/)[0].trim() === requested) {
return serial
}
}
throw new Error(`No running Android device or emulator matches "${requested}".`)
}
if (process.env.ANDROID_SERIAL && serials.includes(process.env.ANDROID_SERIAL)) {
return process.env.ANDROID_SERIAL
}
if (serials.length === 1) {
return serials[0]
}
throw new Error(
serials.length === 0
? 'No running Android emulator or device. Start one first.'
: `Several Android devices are connected (${serials.join(', ')}); pass --device <serial|avd>.`
)
}
async function installOnAndroid(apkPath, requested) {
const adb = adbPath()
const serial = await resolveAndroidSerial(adb, requested)
// -d: a cached build may carry an older versionCode than the one installed.
await execFileAsync(adb, ['-s', serial, 'install', '-r', '-d', apkPath], { encoding: 'utf8' })
return serial
}
// --- Commands --------------------------------------------------------------------------------
async function ensure(mobileRoot, platform, flags) {
if (!PLATFORMS.includes(platform)) {
throw new Error(`ensure needs a platform: ios or android\n${USAGE}`)
}
const device = flags.device
const cacheDir = nativeBuildCache.resolveCacheDir()
log(`Computing the ${platform} native fingerprint...`)
const { hash } = await nativeBuildCache.createNativeFingerprint(mobileRoot, platform)
const key = nativeBuildCache.cacheEntryKey(
platform,
hash,
nativeBuildCache.buildVariant(platform)
)
const cached = flags.rebuild ? null : nativeBuildCache.findCachedBuild(cacheDir, key)
if (cached) {
log(`HIT ${platform} fingerprint ${shortHash(hash)}: installing the cached build`)
log(` ${cached}`)
try {
const target =
platform === 'ios'
? await installOnIosSimulator(cached, device)
: await installOnAndroid(cached, device)
log(`Installed on ${target}. No native rebuild needed.`)
log('Start Metro with: pnpm start --dev-client')
return
} catch (error) {
log(`Installing the cached build failed: ${error.message}`)
log('Falling back to a fresh build.')
}
} else {
log(
flags.rebuild
? `REBUILD ${platform} fingerprint ${shortHash(hash)} (--rebuild)`
: `MISS ${platform} fingerprint ${shortHash(hash)}: native inputs changed, building`
)
}
const { ensureMobileExpoCli, getMobileExpoExecutablePath } = await import('./mobile-expo-cli.mjs')
await ensureMobileExpoCli(mobileRoot)
const expo = getMobileExpoExecutablePath(mobileRoot)
// `expo run` only prebuilds when the native directory is missing, so a directory generated from
// older inputs would be built and cached under the new fingerprint.
const nativeDir = path.join(mobileRoot, platform)
if (readStamp(nativeDir) !== hash) {
if (fs.existsSync(nativeDir)) {
log(`Regenerating ${platform}/ (it was generated from different native inputs)`)
fs.rmSync(nativeDir, { recursive: true, force: true })
}
await runInherited(expo, ['prebuild', '--platform', platform, '--no-install'], {
cwd: mobileRoot
})
fs.writeFileSync(path.join(nativeDir, STAMP_FILE), `${hash}\n`)
}
await runInherited(
expo,
[`run:${platform}`, '--no-bundler', ...(device ? ['--device', device] : [])],
{
cwd: mobileRoot,
env: { ...process.env, [nativeBuildCache.CACHE_MODE_ENV]: 'store' }
}
)
const stored = nativeBuildCache.findCachedBuild(cacheDir, key)
if (stored) {
log(`Built, installed, and cached ${platform} fingerprint ${shortHash(hash)}`)
log(` ${stored}`)
} else {
log(
platform === 'ios'
? 'Built and installed, but not cached: Expo caches iOS Simulator builds only.'
: 'Built and installed, but the build was not cached.'
)
}
log('Start Metro with: pnpm start --dev-client')
}
async function fingerprint(mobileRoot, flags) {
const result = {}
for (const platform of PLATFORMS) {
result[platform] = await nativeBuildCache.createNativeFingerprint(mobileRoot, platform)
log(`${platform} ${result[platform].hash}`)
}
if (flags.out) {
fs.writeFileSync(flags.out, JSON.stringify(result))
}
}
function describeSource(source) {
return source.type === 'contents' ? source.id : `${source.type} ${source.filePath}`
}
export function describeDiffItem(item) {
if (item.op === 'added') {
return `added ${describeSource(item.addedSource)}`
}
if (item.op === 'removed') {
return `removed ${describeSource(item.removedSource)}`
}
return `changed ${describeSource(item.afterSource)}`
}
const MAX_LISTED_SOURCES = 25
async function compare(mobileRoot, [basePath, headPath], flags) {
if (!basePath || !headPath) {
throw new Error(`compare needs two fingerprint files\n${USAGE}`)
}
const base = JSON.parse(fs.readFileSync(basePath, 'utf8'))
const head = JSON.parse(fs.readFileSync(headPath, 'utf8'))
const { diffFingerprints } = nativeBuildCache.loadFingerprintModule(mobileRoot)
const changedPlatforms = PLATFORMS.filter(
(platform) => base[platform]?.hash !== head[platform]?.hash
)
const lines = ['## Mobile native fingerprint', '']
if (changedPlatforms.length === 0) {
lines.push('Unchanged: existing dev-client builds still work with this PR.')
} else {
lines.push(
`**Changed for ${changedPlatforms.join(' and ')}.** Dev clients need a native rebuild ` +
'(`pnpm native ensure <ios|android>`).'
)
}
lines.push('', '| Platform | Base | Head |', '| --- | --- | --- |')
for (const platform of PLATFORMS) {
lines.push(
`| ${platform} | \`${shortHash(base[platform]?.hash ?? 'none')}\` | \`${shortHash(head[platform]?.hash ?? 'none')}\` |`
)
}
for (const platform of changedPlatforms) {
const items = diffFingerprints(base[platform], head[platform]).map(describeDiffItem)
lines.push('', `<details><summary>${platform}: ${items.length} changed sources</summary>`, '')
for (const item of items.slice(0, MAX_LISTED_SOURCES)) {
lines.push(`- ${item}`)
}
if (items.length > MAX_LISTED_SOURCES) {
lines.push(`- ...and ${items.length - MAX_LISTED_SOURCES} more`)
}
lines.push('', '</details>')
}
const markdown = `${lines.join('\n')}\n`
console.log(markdown)
if (flags.summary) {
fs.appendFileSync(flags.summary, markdown)
}
if (changedPlatforms.length > 0 && process.env.GITHUB_ACTIONS) {
console.log(
`::warning title=Mobile native fingerprint changed::This PR changes native inputs for ${changedPlatforms.join(' and ')}; dev clients need a native rebuild.`
)
}
}
async function main() {
const { command, positional, flags } = parseArgs(process.argv.slice(2))
if (!command || flags.help || flags.h) {
console.log(USAGE)
return
}
const mobileRoot = path.resolve(flags.project ?? path.join(import.meta.dirname, '..'))
if (command === 'ensure') {
await ensure(mobileRoot, positional[0], flags)
} else if (command === 'fingerprint') {
await fingerprint(mobileRoot, flags)
} else if (command === 'compare') {
await compare(mobileRoot, positional, flags)
} else {
throw new Error(`Unknown command "${command}"\n${USAGE}`)
}
}
if (process.argv[1] && path.resolve(process.argv[1]) === import.meta.filename) {
main().catch((error) => {
console.error(`[native] ${error.message}`)
process.exit(1)
})
}