初始提交：DSH 多租户平台（dshs）

scripts/fake-dsh.mjs

@@ -0,0 +1,58 @@
+// Stand-in for a real `dsh` process used by the smoke tests. It is role-aware
+// via DSHS_ROLE:
+//   - main: bind the loopback port and serve a marker page; /crash exits 1.
+//   - watchdog: headless; polls the handoff file and records what it "executes".
+import { createServer } from 'node:http'
+import { existsSync, readFileSync, writeFileSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+
+const role = process.env.DSHS_ROLE ?? 'main'
+const port = Number(process.env.DSHS_PORT ?? '3080')
+const cwd = process.cwd()
+
+if (role === 'watchdog') {
+  // One-shot watchdog: mark it ran, execute any handoff command, then exit.
+  const handoffPath = process.env.DSHS_HANDOFF_PATH
+  console.log(`fake-watchdog one-shot running cwd=${cwd}`)
+  if (handoffPath !== undefined) {
+    writeFileSync(join(dirname(handoffPath), 'watchdog-ran.json'), JSON.stringify({ at: Date.now() }))
+  }
+  setTimeout(() => {
+    let command = null
+    if (handoffPath !== undefined && existsSync(handoffPath)) {
+      const content = readFileSync(handoffPath, 'utf8').trim()
+      if (content !== '') {
+        try {
+          command = JSON.parse(content).command ?? content
+        } catch {
+          command = content
+        }
+        writeFileSync(join(dirname(handoffPath), 'watchdog-executed.json'), JSON.stringify({ command, at: Date.now() }))
+        writeFileSync(handoffPath, '')
+      }
+    }
+    console.log(`fake-watchdog done${command ? ` (executed: ${command})` : ''}`)
+    process.exit(0)
+  }, 300)
+} else {
+  const server = createServer((req, res) => {
+    if (req.url === '/crash') {
+      res.writeHead(500, { 'content-type': 'text/plain' })
+      res.end('crashing')
+      setTimeout(() => process.exit(1), 10)
+      return
+    }
+    if (req.url === '/redirect') {
+      res.writeHead(302, { location: '/somewhere' })
+      res.end('redirecting')
+      return
+    }
+    res.writeHead(200, { 'content-type': 'text/plain' })
+    res.end(
+      `fake-dsh pid=${process.pid} port=${port} cwd=${cwd} url=${req.url} argv=${process.argv.slice(2).join(' ')}`,
+    )
+  })
+  server.listen(port, '127.0.0.1', () => {
+    console.log(`fake-dsh listening on ${port}`)
+  })
+}