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