]>
Commit | Line | Data |
---|---|---|
1 | import * as path from 'path' | |
2 | import { readdirPromise } from '../helpers/core-utils' | |
3 | import { logger } from '../helpers/logger' | |
4 | import { LAST_MIGRATION_VERSION } from './constants' | |
5 | import { sequelizeTypescript } from './database' | |
6 | ||
7 | async function migrate () { | |
8 | const tables = await sequelizeTypescript.getQueryInterface().showAllTables() | |
9 | ||
10 | // No tables, we don't need to migrate anything | |
11 | // The installer will do that | |
12 | if (tables.length === 0) return | |
13 | ||
14 | let actualVersion: number = null | |
15 | ||
16 | // Search in "Applications" or "application" tables | |
17 | try { | |
18 | const [ rows ] = await sequelizeTypescript.query('SELECT "migrationVersion" FROM "Applications"') | |
19 | if (rows && rows[ 0 ] && rows[ 0 ].migrationVersion) { | |
20 | actualVersion = rows[ 0 ].migrationVersion | |
21 | } | |
22 | } catch { | |
23 | const [ rows ] = await sequelizeTypescript.query('SELECT "migrationVersion" FROM "application"') | |
24 | if (rows && rows[0] && rows[0].migrationVersion) { | |
25 | actualVersion = rows[0].migrationVersion | |
26 | } | |
27 | } | |
28 | ||
29 | if (actualVersion === null) { | |
30 | await sequelizeTypescript.query('INSERT INTO "application" ("migrationVersion") VALUES (0)') | |
31 | actualVersion = 0 | |
32 | } | |
33 | ||
34 | // No need migrations, abort | |
35 | if (actualVersion >= LAST_MIGRATION_VERSION) return | |
36 | ||
37 | // If there are a new migration scripts | |
38 | logger.info('Begin migrations.') | |
39 | ||
40 | const migrationScripts = await getMigrationScripts() | |
41 | ||
42 | for (const migrationScript of migrationScripts) { | |
43 | try { | |
44 | await executeMigration(actualVersion, migrationScript) | |
45 | } catch (err) { | |
46 | logger.error('Cannot execute migration %s.', migrationScript.version, err) | |
47 | process.exit(-1) | |
48 | } | |
49 | } | |
50 | ||
51 | logger.info('Migrations finished. New migration version schema: %s', LAST_MIGRATION_VERSION) | |
52 | } | |
53 | ||
54 | // --------------------------------------------------------------------------- | |
55 | ||
56 | export { | |
57 | migrate | |
58 | } | |
59 | ||
60 | // --------------------------------------------------------------------------- | |
61 | ||
62 | async function getMigrationScripts () { | |
63 | const files = await readdirPromise(path.join(__dirname, 'migrations')) | |
64 | const filesToMigrate: { | |
65 | version: string, | |
66 | script: string | |
67 | }[] = [] | |
68 | ||
69 | files | |
70 | .filter(file => file.endsWith('.js.map') === false) | |
71 | .forEach(file => { | |
72 | // Filename is something like 'version-blabla.js' | |
73 | const version = file.split('-')[0] | |
74 | filesToMigrate.push({ | |
75 | version, | |
76 | script: file | |
77 | }) | |
78 | }) | |
79 | ||
80 | return filesToMigrate | |
81 | } | |
82 | ||
83 | async function executeMigration (actualVersion: number, entity: { version: string, script: string }) { | |
84 | const versionScript = parseInt(entity.version, 10) | |
85 | ||
86 | // Do not execute old migration scripts | |
87 | if (versionScript <= actualVersion) return undefined | |
88 | ||
89 | // Load the migration module and run it | |
90 | const migrationScriptName = entity.script | |
91 | logger.info('Executing %s migration script.', migrationScriptName) | |
92 | ||
93 | const migrationScript = require(path.join(__dirname, 'migrations', migrationScriptName)) | |
94 | ||
95 | return sequelizeTypescript.transaction(async t => { | |
96 | const options = { | |
97 | transaction: t, | |
98 | queryInterface: sequelizeTypescript.getQueryInterface(), | |
99 | sequelize: sequelizeTypescript | |
100 | } | |
101 | ||
102 | await migrationScript.up(options) | |
103 | ||
104 | // Update the new migration version | |
105 | await sequelizeTypescript.query('UPDATE "application" SET "migrationVersion" = ' + versionScript, { transaction: t }) | |
106 | }) | |
107 | } |