Press n or j to go to the next uncovered block, b, p or k for the previous block.
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 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | 3x 3x 3x 6x 6x 6x 6x 6x 6x 6x 6x 6x 24x 24x 18x 12x 6x 6x 18x 18x 18x 18x 18x 18x 18x 18x 18x 6x 6x 6x 6x 2x 2x 5x 1x 1x 1x 1x 1x 3x 1x 6x 6x 18x 16x 16x 16x 16x 16x | import fs from 'fs' import path from 'path' import { Sqlite3Database } from '../sqlite3/Sqlite3Database' import { Migrate } from '../interfaces/migrate.interfaces' import MigrationFile = Migrate.MigrationFile import MigrationParams = Migrate.MigrationParams /** * Migrates database schema to the latest version */ export async function migrate ( db: Sqlite3Database, config: MigrationParams = {} ) { config.force = config.force || false config.table = config.table || 'migrations' config.migrationsPath = config.migrationsPath || path.join(process.cwd(), 'migrations') const { force, table, migrationsPath } = config /* eslint-disable no-await-in-loop */ const location = path.resolve(migrationsPath) // Get the list of migration files, for example: // { id: 1, name: 'initial', filename: '001-initial.sql' } // { id: 2, name: 'feature', filename: '002-feature.sql' } const migrations = await new Promise<MigrationFile[]>((resolve, reject) => { fs.readdir(location, (err, files) => { Iif (err) { return reject(err) } resolve( files .map(x => x.match(/^(\d+).(.*?)\.sql$/)) .filter(x => x !== null) .map(x => ({ id: Number(x[1]), name: x[2], filename: x[0] })) .sort((a, b) => Math.sign(a.id - b.id)) ) }) }) Iif (!migrations.length) { throw new Error(`No migration files found in '${location}'.`) } // Get the list of migrations, for example: // { id: 1, name: 'initial', filename: '001-initial.sql', up: ..., down: ... } // { id: 2, name: 'feature', filename: '002-feature.sql', up: ..., down: ... } await Promise.all( migrations.map( migration => new Promise((resolve, reject) => { const filename = path.join(location, migration.filename) fs.readFile(filename, 'utf-8', (err, data) => { Iif (err) { return reject(err) } const [up, down] = data.split(/^--\s+?down\b/im) Iif (!down) { const message = `The ${migration.filename} file does not contain '-- Down' separator.` return reject(new Error(message)) } /* eslint-disable no-param-reassign */ migration.up = up.replace(/^-- .*?$/gm, '').trim() // Remove comments migration.down = down.trim() // and trim whitespaces /* eslint-enable no-param-reassign */ resolve() }) }) ) ) // Create a database table for migrations meta data if it doesn't exist await db.run(`CREATE TABLE IF NOT EXISTS "${table}" ( id INTEGER PRIMARY KEY, name TEXT NOT NULL, up TEXT NOT NULL, down TEXT NOT NULL )`) // Get the list of already applied migrations let dbMigrations = await db.all( `SELECT id, name, up, down FROM "${table}" ORDER BY id ASC` ) // Undo migrations that exist only in the database but not in files, // also undo the last migration if the `force` option is enabled. const lastMigration = migrations[migrations.length - 1] for (const migration of dbMigrations .slice() .sort((a, b) => Math.sign(b.id - a.id))) { if ( !migrations.some(x => x.id === migration.id) || (force && migration.id === lastMigration.id) ) { await db.run('BEGIN') try { await db.exec(migration.down) await db.run(`DELETE FROM "${table}" WHERE id = ?`, migration.id) await db.run('COMMIT') dbMigrations = dbMigrations.filter(x => x.id !== migration.id) } catch (err) { await db.run('ROLLBACK') throw err } } else { break } } // Apply pending migrations const lastMigrationId = dbMigrations.length ? dbMigrations[dbMigrations.length - 1].id : 0 for (const migration of migrations) { if (migration.id > lastMigrationId) { await db.run('BEGIN') try { await db.exec(migration.up) await db.run( `INSERT INTO "${table}" (id, name, up, down) VALUES (?, ?, ?, ?)`, migration.id, migration.name, migration.up, migration.down ) await db.run('COMMIT') } catch (err) { await db.run('ROLLBACK') throw err } } } } |