feat: write migrations

src/main/knex-client.ts

@@ -0,0 +1,30 @@
+import knex, { Knex } from "knex";
+import { databasePath } from "./constants";
+import * as migrations from "./migrations";
+
+type Migration = Knex.Migration & { name: string };
+
+class MigrationSource implements Knex.MigrationSource<Migration> {
+  getMigrations(): Promise<Migration[]> {
+    return Promise.resolve(
+      Object.values(migrations).sort((a, b) => a.name.localeCompare(b.name))
+    );
+  }
+  getMigrationName(migration: Migration): string {
+    return migration.name;
+  }
+  getMigration(migration: Migration): Promise<Migration> {
+    return Promise.resolve(migration);
+  }
+}
+
+export const knexClient = knex({
+  client: "better-sqlite3",
+  connection: {
+    filename: databasePath,
+  },
+});
+
+export const migrationConfig: Knex.MigratorConfig = {
+  migrationSource: new MigrationSource(),
+};