Simple node.js native addon using n-api which calls renameat2 with exchange flag set. Why is this useful? I causes two files to swap places atomically so that there is never one of them missing or both of them containing same data.
npm i mv-exchange or globally with npm i -g mv-exchange
As module:
const mvExchange = require('mv-exchange');
mvExchange('file1', 'file2');
Operation is synchronous and throws on failure
Using CLI
mv-exchange file1 file2
Using npx
npx mv-exchange file1 file2
This only supports linux with renameat2 syscall. If you know how to do this on
other platforms open issue with explanation or open pull request.