74 lines
2.2 KiB
TypeScript
74 lines
2.2 KiB
TypeScript
import { join } from 'path'
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import type { CronJob } from './schedules'
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import { getNextRun } from './scheduler'
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const APPS_DIR = process.env.APPS_DIR!
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const TOES_DIR = process.env.TOES_DIR!
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const RUNNER = join(import.meta.dir, 'runner.ts')
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async function readStream(stream: ReadableStream<Uint8Array>, append: (text: string) => void) {
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const reader = stream.getReader()
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const decoder = new TextDecoder()
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while (true) {
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const { done, value } = await reader.read()
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if (done) break
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append(decoder.decode(value, { stream: true }))
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}
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}
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export async function executeJob(job: CronJob, onUpdate: () => void): Promise<void> {
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if (job.state === 'disabled') return
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job.state = 'running'
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job.lastRun = Date.now()
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job.lastOutput = undefined
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job.lastError = undefined
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job.lastExitCode = undefined
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job.lastDuration = undefined
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onUpdate()
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const cwd = join(APPS_DIR, job.app, 'current')
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try {
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const proc = Bun.spawn(['bun', 'run', RUNNER, job.file], {
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cwd,
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env: { ...process.env, DATA_DIR: join(TOES_DIR, job.app) },
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stdout: 'pipe',
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stderr: 'pipe',
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})
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// Stream output incrementally into job fields
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await Promise.all([
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readStream(proc.stdout as ReadableStream<Uint8Array>, text => {
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job.lastOutput = (job.lastOutput || '') + text
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}),
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readStream(proc.stderr as ReadableStream<Uint8Array>, text => {
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job.lastError = (job.lastError || '') + text
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}),
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])
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const code = await proc.exited
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job.lastDuration = Date.now() - job.lastRun
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job.lastExitCode = code
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if (!job.lastError && code !== 0) job.lastError = 'Non-zero exit'
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if (code === 0) job.lastError = undefined
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if (!job.lastOutput) job.lastOutput = undefined
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job.state = 'idle'
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job.nextRun = getNextRun(job.id)
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// Log result
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console.log(`[cron] ${job.id} finished: code=${code} duration=${job.lastDuration}ms`)
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if (job.lastOutput) console.log(job.lastOutput)
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if (job.lastError) console.error(job.lastError)
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} catch (e) {
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job.lastDuration = Date.now() - job.lastRun
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job.lastExitCode = 1
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job.lastError = e instanceof Error ? e.message : String(e)
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job.state = 'idle'
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console.error(`[cron] ${job.id} failed:`, e)
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}
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onUpdate()
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}
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