Node.js tmp Module Learning - Temporary File Auto-cleanup Demo

main.js

const tmp = require('tmp');
const fse = require('fs-extra');
const path = require('path');

const dir = tmp.dirSync({
  prefix: path.basename(path.dirname(__filename))
});

console.log(`Temporary directory created: ${dir.name}`);

const file = path.join(dir.name, path.basename(__filename));

fse.writeFileSync(file, fse.readFileSync(__filename));

tmp.setGracefulCleanup();

setTimeout(() => {
  console.log(`Clean`);
  fse.emptyDirSync(dir.name);

  setTimeout(() => {
    console.log('End');
  }, 1000);

}, 5000);

/**
To run this script multiple times concurrently, you can use the following shell command:

for i in {1..10}; do
  (sleep 1 && node main.js) &
  sleep 0.5
done
wait

*/

ref

• https://www.npmjs.com/package/tmp
• https://github.com/electron/fiddle/blob/707b9d3cd6018d4d53891101248080c499bec2ac/src/main/files.ts#L152-L168