overleaf/services/history-v1/storage/lib/project_key.js
Antoine Clausse 7f48c67512 Add prefer-node-protocol ESLint rule (#21532)
* Add `unicorn/prefer-node-protocol`

* Fix `unicorn/prefer-node-protocol` ESLint errors

* Run `npm run format:fix`

* Add sandboxed-module sourceTransformers in mocha setups

Fix `no such file or directory, open 'node:fs'` in `sandboxed-module`

* Remove `node:` in the SandboxedModule requires

* Fix new linting errors with `node:`

GitOrigin-RevId: 68f6e31e2191fcff4cb8058dd0a6914c14f59926
2024-11-11 09:04:51 +00:00

23 lines
615 B
JavaScript

const _ = require('lodash')
const path = require('node:path')
//
// The advice in http://docs.aws.amazon.com/AmazonS3/latest/dev/
// request-rate-perf-considerations.html is to avoid sequential key prefixes,
// so we reverse the project ID part of the key as they suggest.
//
function format(projectId) {
const prefix = naiveReverse(pad(projectId))
return path.join(prefix.slice(0, 3), prefix.slice(3, 6), prefix.slice(6))
}
function pad(number) {
return _.padStart(number, 9, '0')
}
function naiveReverse(string) {
return string.split('').reverse().join('')
}
exports.format = format
exports.pad = pad