86 lines
3.6 KiB
TypeScript
86 lines
3.6 KiB
TypeScript
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/**
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* Watch-build for client-plugin HMR: runs every dshClient plugin package
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* through the tsdown JS API in watch mode. Reload signaling is not this
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* script's business — the host webserver stat-polls the bundles it serves and
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* broadcasts `rebuilt` frames itself (`dsh web --dev`), so any process that
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* rewrites `lib/client.js` files triggers reloads; this script is merely the
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* convenient way to keep them all rebuilt on source change.
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*
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* Usage: `pnpm exec tsx scripts/dev-web.ts [--poll[=ms]]`. Requires the
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* packages' node halves built once (`tsc -b tsconfig.build.json`): the lib
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* config's entries are tsc output. `--poll` switches the source-file watcher
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* to polling (default 500ms): network mounts (weka) deliver no inotify
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* events, so native watching sees the initial build only and never a source
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* change.
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*
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* Each package keeps its own tsdown.config.ts untouched: this script layers
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* `watch` through API-level inline config (tsdown workspace mode fills inline
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* keys under each package's file config, and no package config defines it).
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*/
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import { readdirSync, readFileSync } from 'node:fs'
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import { join } from 'node:path'
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import { fileURLToPath } from 'node:url'
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import { build } from 'tsdown'
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const repoRoot = fileURLToPath(new URL('..', import.meta.url))
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/**
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* Discover the watch workspace by declaration: every packages/<group>/<name>
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* whose package.json carries `dshClient` with platform "web" is a client
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* plugin bundle emitter. Scanned once at startup — a package added while
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* watching means restarting this script.
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* @returns workspace-relative plugin package directories.
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*/
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function discoverPluginDirs(): string[] {
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const dirs: string[] = []
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for (const group of readdirSync(join(repoRoot, 'packages'), { withFileTypes: true })) {
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if (!group.isDirectory()) continue
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for (const pkg of readdirSync(join(repoRoot, 'packages', group.name), { withFileTypes: true })) {
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if (!pkg.isDirectory()) continue
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let manifest: { dshClient?: { platform?: unknown } }
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try {
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manifest = JSON.parse(
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readFileSync(join(repoRoot, 'packages', group.name, pkg.name, 'package.json'), 'utf8'),
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) as { dshClient?: { platform?: unknown } }
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} catch {
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continue // no package.json (support dirs, scratch): not a workspace package
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}
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if (manifest.dshClient?.platform === 'web') dirs.push(`packages/${group.name}/${pkg.name}`)
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}
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}
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return dirs
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}
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const PLUGIN_DIRS = discoverPluginDirs()
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if (PLUGIN_DIRS.length === 0) {
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console.error('dev-web: no dshClient (platform "web") packages found under packages/')
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process.exit(1)
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}
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const args = process.argv.slice(2)
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const pollArg = args.find(a => a === '--poll' || a.startsWith('--poll='))
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if (args.some(a => a !== pollArg)) {
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console.error('dev-web: usage: tsx scripts/dev-web.ts [--poll[=ms]]')
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process.exit(1)
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}
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const pollInterval = pollArg === undefined ? undefined : Number(pollArg.split('=')[1] ?? '500')
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if (pollInterval !== undefined && (!Number.isInteger(pollInterval) || pollInterval <= 0)) {
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console.error(`dev-web: invalid --poll interval "${pollArg ?? ''}"`)
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process.exit(1)
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}
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await build({
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cwd: repoRoot,
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workspace: PLUGIN_DIRS,
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watch: true,
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// Rolldown watch options ride through inputOptions (tsdown has no watcher
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// tuning of its own); polling is opt-in for network mounts without inotify.
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...pollInterval !== undefined
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? { inputOptions: { watch: { watcher: { usePolling: true, pollInterval } } } }
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: {},
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})
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console.log(
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`dev-web: watching ${String(PLUGIN_DIRS.length)} dshClient plugin packages`
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+ `${pollInterval !== undefined ? ` (polling ${String(pollInterval)}ms)` : ''}:\n ${PLUGIN_DIRS.join('\n ')}`,
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)
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