Files
tehran_taj/apps/api/src/prisma/bootstrap.ts
T

60 lines
1.8 KiB
TypeScript

import { execFile } from 'child_process';
import { existsSync } from 'fs';
import { join } from 'path';
import { promisify } from 'util';
import { Logger } from '@nestjs/common';
import { PrismaClient } from '@prisma/client';
import { runMigrations, runOnce } from './migrate';
const execFileAsync = promisify(execFile);
function resolveSeedScript(): string | undefined {
const candidates = [
process.env.SEED_SCRIPT,
join(process.cwd(), 'seed.js'),
join(__dirname, '..', '..', 'seed.js'),
].filter((p): p is string => Boolean(p));
return candidates.find((file) => existsSync(file));
}
/**
* Runs pending SQL migrations before Nest boots, then seeds once.
*
* Seeding is gated on a marker row written only after the seed succeeds, so an
* interrupted seed is retried on the next boot (the seed itself upserts).
* Set RUN_MIGRATIONS=false or RUN_SEED=false to skip.
*/
export async function prepareDatabase(): Promise<void> {
if (process.env.RUN_MIGRATIONS === 'false') return;
const logger = new Logger('DatabaseBootstrap');
const prisma = new PrismaClient();
try {
const { applied } = await runMigrations(prisma);
if (applied.length > 0) {
logger.log(`Applied migrations: ${applied.join(', ')}`);
} else {
logger.log('No pending migrations');
}
if (process.env.RUN_SEED === 'false') return;
const seedScript = resolveSeedScript();
if (!seedScript) {
logger.warn('No seed script found — skipping seed');
return;
}
const seeded = await runOnce(prisma, 'seed:initial', async () => {
const { stdout } = await execFileAsync(process.execPath, [seedScript]);
if (stdout.trim()) logger.log(stdout.trim());
});
if (seeded) logger.log('Seed data inserted');
} finally {
await prisma.$disconnect();
}
}