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