1 import * as path from 'path'
2 import { logger, readdirPromise } from '../helpers'
3 import { LAST_MIGRATION_VERSION } from './constants'
4 import { sequelizeTypescript } from './database'
6 async function migrate () {
7 const tables = await sequelizeTypescript.getQueryInterface().showAllTables()
9 // No tables, we don't need to migrate anything
10 // The installer will do that
11 if (tables.length === 0) return
13 let actualVersion: number = null
15 // Search in "Applications" or "application" tables
17 const [ rows ] = await sequelizeTypescript.query('SELECT "migrationVersion" FROM "Applications"')
18 if (rows && rows[ 0 ] && rows[ 0 ].migrationVersion) {
19 actualVersion = rows[ 0 ].migrationVersion
22 const [ rows ] = await sequelizeTypescript.query('SELECT "migrationVersion" FROM "application"')
23 if (rows && rows[0] && rows[0].migrationVersion) {
24 actualVersion = rows[0].migrationVersion
28 if (actualVersion === null) {
29 await sequelizeTypescript.query('INSERT INTO "application" ("migrationVersion") VALUES (0)')
33 // No need migrations, abort
34 if (actualVersion >= LAST_MIGRATION_VERSION) return
36 // If there are a new migration scripts
37 logger.info('Begin migrations.')
39 const migrationScripts = await getMigrationScripts()
41 for (const migrationScript of migrationScripts) {
43 await executeMigration(actualVersion, migrationScript)
45 logger.error('Cannot execute migration %s.', migrationScript.version, err)
50 logger.info('Migrations finished. New migration version schema: %s', LAST_MIGRATION_VERSION)
53 // ---------------------------------------------------------------------------
59 // ---------------------------------------------------------------------------
61 async function getMigrationScripts () {
62 const files = await readdirPromise(path.join(__dirname, 'migrations'))
63 const filesToMigrate: {
69 .filter(file => file.endsWith('.js.map') === false)
71 // Filename is something like 'version-blabla.js'
72 const version = file.split('-')[0]
82 async function executeMigration (actualVersion: number, entity: { version: string, script: string }) {
83 const versionScript = parseInt(entity.version, 10)
85 // Do not execute old migration scripts
86 if (versionScript <= actualVersion) return undefined
88 // Load the migration module and run it
89 const migrationScriptName = entity.script
90 logger.info('Executing %s migration script.', migrationScriptName)
92 const migrationScript = require(path.join(__dirname, 'migrations', migrationScriptName))
94 await sequelizeTypescript.transaction(async t => {
97 queryInterface: sequelizeTypescript.getQueryInterface(),
98 sequelize: sequelizeTypescript
101 await migrationScript.up(options)
103 // Update the new migration version
104 await sequelizeTypescript.query('UPDATE "application" SET "migrationVersion" = ' + versionScript, { transaction: t })