app/scripts/migrations/031.js


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// next version number
const version = 31
const clone = require('clone')

 /*
  * The purpose of this migration is to properly set the completedOnboarding flag baesd on the state
  * of the KeyringController.
  */
module.exports = {
  version,

   migrate: async function (originalVersionedData) {
    const versionedData = clone(originalVersionedData)
    versionedData.meta.version = version
    const state = versionedData.data
    const newState = transformState(state)
    versionedData.data = newState
    return versionedData
  },
}

 function transformState (state) {
  const { KeyringController, PreferencesController } = state

   if (KeyringController && PreferencesController) {
    const { vault } = KeyringController
    PreferencesController.completedOnboarding = Boolean(vault)
  }

   return state
}