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| import { sql } from "../sql/index.js"; | |
| function readMigrationFiles({ journal, migrations }) { | |
| const migrationQueries = []; | |
| for (const journalEntry of journal.entries) { | |
| const query = migrations[`m${journalEntry.idx.toString().padStart(4, "0")}`]; | |
| if (!query) { | |
| throw new Error(`Missing migration: ${journalEntry.tag}`); | |
| } | |
| try { | |
| const result = query.split("--> statement-breakpoint").map((it) => { | |
| return it; | |
| }); | |
| migrationQueries.push({ | |
| sql: result, | |
| bps: journalEntry.breakpoints, | |
| folderMillis: journalEntry.when, | |
| hash: "" | |
| }); | |
| } catch { | |
| throw new Error(`Failed to parse migration: ${journalEntry.tag}`); | |
| } | |
| } | |
| return migrationQueries; | |
| } | |
| async function migrate(db, config) { | |
| const migrations = readMigrationFiles(config); | |
| db.transaction((tx) => { | |
| try { | |
| const migrationsTable = "__drizzle_migrations"; | |
| const migrationTableCreate = sql` | |
| CREATE TABLE IF NOT EXISTS ${sql.identifier(migrationsTable)} ( | |
| id SERIAL PRIMARY KEY, | |
| hash text NOT NULL, | |
| created_at numeric | |
| ) | |
| `; | |
| db.run(migrationTableCreate); | |
| const dbMigrations = db.values( | |
| sql`SELECT id, hash, created_at FROM ${sql.identifier(migrationsTable)} ORDER BY created_at DESC LIMIT 1` | |
| ); | |
| const lastDbMigration = dbMigrations[0] ?? void 0; | |
| for (const migration of migrations) { | |
| if (!lastDbMigration || Number(lastDbMigration[2]) < migration.folderMillis) { | |
| for (const stmt of migration.sql) { | |
| db.run(sql.raw(stmt)); | |
| } | |
| db.run( | |
| sql`INSERT INTO ${sql.identifier(migrationsTable)} ("hash", "created_at") VALUES(${migration.hash}, ${migration.folderMillis})` | |
| ); | |
| } | |
| } | |
| } catch (error) { | |
| tx.rollback(); | |
| throw error; | |
| } | |
| }); | |
| } | |
| export { | |
| migrate | |
| }; | |
| //# sourceMappingURL=migrator.js.map |