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Fix db:export ENOBUFS by streaming pg_dump output to file #17

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Michilis merged 1 commits from dev into main 2026-03-12 19:18:58 +00:00
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1 changed files with 24 additions and 20 deletions
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44
backend/src/db/export.ts
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@@ -1,5 +1,5 @@
import 'dotenv/config'; import 'dotenv/config';
import { existsSync, mkdirSync, writeFileSync } from 'fs'; import { closeSync, existsSync, mkdirSync, openSync } from 'fs';
import { dirname, resolve } from 'path'; import { dirname, resolve } from 'path';
import { spawnSync } from 'child_process'; import { spawnSync } from 'child_process';
import Database from 'better-sqlite3'; import Database from 'better-sqlite3';
@@ -43,28 +43,32 @@ function exportSqlite(outputPath: string): void {
function exportPostgres(outputPath: string): void { function exportPostgres(outputPath: string): void {
const connString = process.env.DATABASE_URL || 'postgresql://localhost:5432/spanglish'; const connString = process.env.DATABASE_URL || 'postgresql://localhost:5432/spanglish';
const result = spawnSync( const outFd = openSync(outputPath, 'w');
'pg_dump', try {
['--clean', '--if-exists', connString], const result = spawnSync(
{ 'pg_dump',
stdio: ['ignore', 'pipe', 'pipe'], ['--clean', '--if-exists', connString],
encoding: 'utf-8', {
stdio: ['ignore', outFd, 'pipe'],
encoding: 'utf-8',
}
);
if (result.error) {
console.error('pg_dump failed. Ensure pg_dump is installed and in PATH.');
console.error(result.error.message);
process.exit(1);
} }
);
if (result.error) { if (result.status !== 0) {
console.error('pg_dump failed. Ensure pg_dump is installed and in PATH.'); console.error('pg_dump failed:', result.stderr);
console.error(result.error.message); process.exit(1);
process.exit(1); }
console.log(`Exported to ${outputPath}`);
} finally {
closeSync(outFd);
} }
if (result.status !== 0) {
console.error('pg_dump failed:', result.stderr);
process.exit(1);
}
writeFileSync(outputPath, result.stdout);
console.log(`Exported to ${outputPath}`);
} }
async function main() { async function main() {