1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
import * as path from 'path'
import { logger, readdirPromise } from '../helpers'
import { ApplicationModel } from '../models/application/application'
import { LAST_MIGRATION_VERSION } from './constants'
import { sequelizeTypescript } from './database'
async function migrate () {
const tables = await sequelizeTypescript.getQueryInterface().showAllTables()
// No tables, we don't need to migrate anything
// The installer will do that
if (tables.length === 0) return
let actualVersion = await ApplicationModel.loadMigrationVersion()
if (actualVersion === null) {
await ApplicationModel.create({ migrationVersion: 0 })
actualVersion = 0
}
// No need migrations, abort
if (actualVersion >= LAST_MIGRATION_VERSION) return
// If there are a new migration scripts
logger.info('Begin migrations.')
const migrationScripts = await getMigrationScripts()
for (const migrationScript of migrationScripts) {
try {
await executeMigration(actualVersion, migrationScript)
} catch (err) {
logger.error('Cannot execute migration %s.', migrationScript.version, err)
process.exit(0)
}
}
logger.info('Migrations finished. New migration version schema: %s', LAST_MIGRATION_VERSION)
}
// ---------------------------------------------------------------------------
export {
migrate
}
// ---------------------------------------------------------------------------
async function getMigrationScripts () {
const files = await readdirPromise(path.join(__dirname, 'migrations'))
const filesToMigrate: {
version: string,
script: string
}[] = []
files
.filter(file => file.endsWith('.js.map') === false)
.forEach(file => {
// Filename is something like 'version-blabla.js'
const version = file.split('-')[0]
filesToMigrate.push({
version,
script: file
})
})
return filesToMigrate
}
async function executeMigration (actualVersion: number, entity: { version: string, script: string }) {
const versionScript = parseInt(entity.version, 10)
// Do not execute old migration scripts
if (versionScript <= actualVersion) return undefined
// Load the migration module and run it
const migrationScriptName = entity.script
logger.info('Executing %s migration script.', migrationScriptName)
const migrationScript = require(path.join(__dirname, 'migrations', migrationScriptName))
await sequelizeTypescript.transaction(async t => {
const options = {
transaction: t,
queryInterface: sequelizeTypescript.getQueryInterface(),
sequelize: sequelizeTypescript
}
await migrationScript.up(options)
// Update the new migration version
await ApplicationModel.updateMigrationVersion(versionScript, t)
})
}
|
