Remove all IndexedDB migration code

js/modules/indexeddb.js

@@ -1,146 +1,13 @@
-/* global window, Whisper, textsecure, setTimeout */
-
-const { isFunction } = require('lodash');
-
-const MessageDataMigrator = require('./messages_data_migrator');
-const {
-  run,
-  getLatestVersion,
-  getDatabase,
-} = require('./migrations/migrations');
+/* global window, Whisper, setTimeout */
 
 const MESSAGE_MINIMUM_VERSION = 7;
 
 module.exports = {
   doesDatabaseExist,
-  mandatoryMessageUpgrade,
   MESSAGE_MINIMUM_VERSION,
-  migrateAllToSQLCipher,
   removeDatabase,
-  runMigrations,
 };
 
-async function runMigrations() {
-  window.log.info('Run migrations on database with attachment data');
-  await run({
-    Backbone: window.Backbone,
-    logger: window.log,
-  });
-
-  Whisper.Database.migrations[0].version = getLatestVersion();
-}
-
-async function mandatoryMessageUpgrade({ upgradeMessageSchema } = {}) {
-  if (!isFunction(upgradeMessageSchema)) {
-    throw new Error(
-      'mandatoryMessageUpgrade: upgradeMessageSchema must be a function!'
-    );
-  }
-
-  const NUM_MESSAGES_PER_BATCH = 10;
-  window.log.info(
-    'upgradeMessages: Mandatory message schema upgrade started.',
-    `Target version: ${MESSAGE_MINIMUM_VERSION}`
-  );
-
-  let isMigrationWithoutIndexComplete = false;
-  while (!isMigrationWithoutIndexComplete) {
-    const database = getDatabase();
-    // eslint-disable-next-line no-await-in-loop
-    const batchWithoutIndex = await MessageDataMigrator.processNextBatchWithoutIndex(
-      {
-        databaseName: database.name,
-        minDatabaseVersion: database.version,
-        numMessagesPerBatch: NUM_MESSAGES_PER_BATCH,
-        upgradeMessageSchema,
-        maxVersion: MESSAGE_MINIMUM_VERSION,
-        BackboneMessage: Whisper.Message,
-        saveMessage: window.Signal.Data.saveLegacyMessage,
-      }
-    );
-    window.log.info(
-      'upgradeMessages: upgrade without index',
-      batchWithoutIndex
-    );
-    isMigrationWithoutIndexComplete = batchWithoutIndex.done;
-  }
-  window.log.info('upgradeMessages: upgrade without index complete!');
-
-  let isMigrationWithIndexComplete = false;
-  while (!isMigrationWithIndexComplete) {
-    // eslint-disable-next-line no-await-in-loop
-    const batchWithIndex = await MessageDataMigrator.processNext({
-      BackboneMessage: Whisper.Message,
-      BackboneMessageCollection: Whisper.MessageCollection,
-      numMessagesPerBatch: NUM_MESSAGES_PER_BATCH,
-      upgradeMessageSchema,
-      getMessagesNeedingUpgrade:
-        window.Signal.Data.getLegacyMessagesNeedingUpgrade,
-      saveMessage: window.Signal.Data.saveLegacyMessage,
-      maxVersion: MESSAGE_MINIMUM_VERSION,
-    });
-    window.log.info('upgradeMessages: upgrade with index', batchWithIndex);
-    isMigrationWithIndexComplete = batchWithIndex.done;
-  }
-  window.log.info('upgradeMessages: upgrade with index complete!');
-
-  window.log.info('upgradeMessages: Message schema upgrade complete');
-}
-
-async function migrateAllToSQLCipher({ writeNewAttachmentData, Views } = {}) {
-  if (!isFunction(writeNewAttachmentData)) {
-    throw new Error(
-      'migrateAllToSQLCipher: writeNewAttachmentData must be a function'
-    );
-  }
-  if (!Views) {
-    throw new Error('migrateAllToSQLCipher: Views must be provided!');
-  }
-
-  let totalMessages;
-  const db = await Whisper.Database.open();
-
-  function showMigrationStatus(current) {
-    const status = `${current}/${totalMessages}`;
-    Views.Initialization.setMessage(
-      window.i18n('migratingToSQLCipher', [status])
-    );
-  }
-
-  try {
-    totalMessages = await MessageDataMigrator.getNumMessages({
-      connection: db,
-    });
-  } catch (error) {
-    window.log.error(
-      'background.getNumMessages error:',
-      error && error.stack ? error.stack : error
-    );
-    totalMessages = 0;
-  }
-
-  if (totalMessages) {
-    window.log.info(`About to migrate ${totalMessages} messages`);
-    showMigrationStatus(0);
-  } else {
-    window.log.info('About to migrate non-messages');
-  }
-
-  await window.Signal.migrateToSQL({
-    db,
-    clearStores: Whisper.Database.clearStores,
-    handleDOMException: Whisper.Database.handleDOMException,
-    arrayBufferToString: textsecure.MessageReceiver.arrayBufferToStringBase64,
-    countCallback: count => {
-      window.log.info(`Migration: ${count} messages complete`);
-      showMigrationStatus(count);
-    },
-    writeNewAttachmentData,
-  });
-
-  db.close();
-}
-
 async function doesDatabaseExist() {
   window.log.info('Checking for the existence of IndexedDB data...');
   return new Promise((resolve, reject) => {