Legacy data migration

Here's some scripts to migrate legacy data. If you don't know how to use the scripts below, please join our slack and send a DM to me(@rokt33r)

Boost Note Slack https://join.slack.com/t/boostnote-group/shared_invite/zt-cun7pas3-WwkaezxHBB1lCbUHrwQLXw

Legacy cloud data -> Local app data

Run the script below from console of the dev tools after modifying $EXTRACT_DESTINATION_DIR.

extract('$EXTRACT_DESTINATION_DIR')

function extract(destination) {
  const fs = require('fs')
  const path = require('path')
  tryCreateFolder(destination)

  JSON.parse(localStorage.getItem('note.boostio.co:storageDataList')).map(
    async (storage) => {
      if (storage.type === 'fs') {
        return
      }
      const db = await promisify(indexedDB.open(`_pouch_${storage.id}`))
      const docs = await promisify(
        db.transaction('document-store').objectStore('document-store').getAll()
      )
      const revs = await promisify(
        db.transaction('by-sequence').objectStore('by-sequence').getAll()
      )

      const revMap = revs.reduce((map, rev) => {
        map.set(rev._doc_id_rev, rev)
        return map
      }, new Map())

      const noteDocs = docs
        .filter((doc) => {
          return /^note:/.test(doc.id)
        })
        .map((pouchDoc) => {
          return {
            _id: pouchDoc.id,
            ...revMap.get(pouchDoc.id + '::' + pouchDoc.winningRev),
          }
        })

      const storageDumpDestination = path.join(
        destination,
        `${storage.name}-${storage.id}`
      )
      tryCreateFolder(storageDumpDestination)

      tryCreateFolder(path.join(storageDumpDestination, 'notes'))

      for (const noteDoc of noteDocs) {
        const fileName = `${noteDoc._id.slice('note:'.length)}.json`
        fs.writeFileSync(
          path.join(storageDumpDestination, 'notes', fileName),
          JSON.stringify(noteDoc)
        )
      }
    }
  )

  function promisify(req) {
    return new Promise((res, rej) => {
      req.onsuccess = (event) => {
        res(event.target.result)
      }
    })
  }

  function tryCreateFolder(pathname) {
    try {
      fs.mkdirSync(pathname)
    } catch (error) {
      if (error.code === 'EEXIST') {
        return
      }
      throw error
    }
  }
}

Then all docs from the legacy cloud storage will be extracted and converted to file system based storage format like the below. You can load each of them by creating a storage via the local app(BoostNote.next-local). You should choose $STORAGE_NAME-$STORAGE_ID directories instead of $STORAGE_NAME-$STORAGE_ID/notes directories or you need to wipe the extracted data and run the extract script again.

$DESTINATION_DIR
  |-- $STORAGE_NAME-$STORAGE_ID
    |-- notes
      |-- $NOTE_ID.json
      |-- $NOTE_ID.json
      |-- ...
  |-- $STORAGE_NAME-$STORAGE_ID
    |-- notes
      |-- $NOTE_ID.json
      |-- $NOTE_ID.json
      |-- ...
  |-- ...

Local app data -> Cloud Space(https://boostnote.io)

To be announced....