1 import * as path from 'path'
2 import { logger, readdirPromise } from '../helpers'
3 import { ApplicationModel } from '../models/application/application'
4 import { LAST_MIGRATION_VERSION } from './constants'
5 import { sequelizeTypescript } from './database'
7 async function migrate () {
8 const tables = await sequelizeTypescript.getQueryInterface().showAllTables()
10 // No tables, we don't need to migrate anything
11 // The installer will do that
12 if (tables.length === 0) return
14 let actualVersion = await ApplicationModel.loadMigrationVersion()
15 if (actualVersion === null) {
16 await ApplicationModel.create({ migrationVersion: 0 })
20 // No need migrations, abort
21 if (actualVersion >= LAST_MIGRATION_VERSION) return
23 // If there are a new migration scripts
24 logger.info('Begin migrations.')
26 const migrationScripts = await getMigrationScripts()
28 for (const migrationScript of migrationScripts) {
30 await executeMigration(actualVersion, migrationScript)
32 logger.error('Cannot execute migration %s.', migrationScript.version, err)
37 logger.info('Migrations finished. New migration version schema: %s', LAST_MIGRATION_VERSION)
40 // ---------------------------------------------------------------------------
46 // ---------------------------------------------------------------------------
48 async function getMigrationScripts () {
49 const files = await readdirPromise(path.join(__dirname, 'migrations'))
50 const filesToMigrate: {
56 .filter(file => file.endsWith('.js.map') === false)
58 // Filename is something like 'version-blabla.js'
59 const version = file.split('-')[0]
69 async function executeMigration (actualVersion: number, entity: { version: string, script: string }) {
70 const versionScript = parseInt(entity.version, 10)
72 // Do not execute old migration scripts
73 if (versionScript <= actualVersion) return undefined
75 // Load the migration module and run it
76 const migrationScriptName = entity.script
77 logger.info('Executing %s migration script.', migrationScriptName)
79 const migrationScript = require(path.join(__dirname, 'migrations', migrationScriptName))
81 await sequelizeTypescript.transaction(async t => {
84 queryInterface: sequelizeTypescript.getQueryInterface(),
85 sequelize: sequelizeTypescript
88 await migrationScript.up(options)
90 // Update the new migration version
91 await ApplicationModel.updateMigrationVersion(versionScript, t)