fix: handle esm exports when requiring migrations

src/Migrator/MigrationSource.ts

@@ -10,6 +10,7 @@
 /// <reference path="../../adonis-typings/index.ts" />
 
 import { readdir } from 'fs'
+import { esmRequire } from '@poppinss/utils'
 import { join, isAbsolute, extname } from 'path'
 import { MigrationNode } from '@ioc:Adonis/Lucid/Migrator'
 import { ApplicationContract } from '@ioc:Adonis/Core/Application'
@@ -42,7 +43,7 @@ export class MigrationSource {
           return {
             absPath: join(path, file),
             name: join(directoryPath, file.replace(RegExp(`${extname(file)}$`), '')),
-            source: require(join(path, file)),
+            source: esmRequire(join(path, file)),
           }
         }))
       })

test/migrations/migration-source.spec.ts

@@ -61,7 +61,7 @@ test.group('MigrationSource', (group) => {
 
   test('sort multiple migration directories seperately', async (assert) => {
     const app = new Application(fs.basePath, {} as any, {} as any, {})
-    const config = Object.assign(db.getRawConnection('primary')!.config, {
+    const config = Object.assign({}, db.getRawConnection('primary')!.config, {
       migrations: {
         paths: ['database/secondary', 'database/primary'],
       },
@@ -98,4 +98,13 @@ test.group('MigrationSource', (group) => {
       },
     ])
   })
+
+  test('handle esm default exports properly', async (assert) => {
+    const app = new Application(fs.basePath, {} as any, {} as any, {})
+    const migrationSource = new MigrationSource(db.getRawConnection('primary')!.config, app)
+
+    await fs.add('database/migrations/foo.ts', 'export default class Foo {}')
+    const directories = await migrationSource.getMigrations()
+    assert.equal(directories[0].source.name, 'Foo')
+  })
 })