overleaf/services/web/scripts/restore_soft_deleted_docs.js

const { waitForDb } = require('../app/src/infrastructure/mongodb')
const ProjectEntityUpdateHandler = require('../app/src/Features/Project/ProjectEntityUpdateHandler')
const ProjectEntityHandler = require('../app/src/Features/Project/ProjectEntityHandler')
const ProjectGetter = require('../app/src/Features/Project/ProjectGetter')

const ARGV = process.argv.slice(2)
const DEVELOPER_USER_ID = ARGV.shift()
const PROJECT_ID = ARGV.shift()
const FILE_NAMES_TO_RESTORE = ARGV

async function main() {
  const project = await ProjectGetter.promises.getProject(PROJECT_ID, {
    deletedDocs: 1
  })
  const docsToRestore = project.deletedDocs.filter(doc =>
    FILE_NAMES_TO_RESTORE.includes(doc.name)
  )
  for (const deletedDoc of docsToRestore) {
    const doc = await new Promise((resolve, reject) => {
      ProjectEntityHandler.getDoc(
        PROJECT_ID,
        deletedDoc._id,
        {
          include_deleted: true
        },
        (err, lines, rev, version, ranges) => {
          if (err) return reject(err)
          resolve({ lines, ranges })
        }
      )
    })

    const newDoc = await new Promise((resolve, reject) => {
      ProjectEntityUpdateHandler.addDocWithRanges(
        PROJECT_ID,
        null,
        `${new Date().toISOString().replace(/:/g, '-')}-${deletedDoc.name}`,
        doc.lines,
        doc.ranges,
        DEVELOPER_USER_ID,
        (err, doc, folderId) => {
          if (err) return reject(err)
          resolve({ doc, folderId })
        }
      )
    })
    console.log(newDoc)
  }
}

waitForDb()
  .then(main)
  .then(() => {
    process.exit(0)
  })
  .catch(error => {
    console.error(error)
    process.exit(1)
  })