switch to explicit require for lazy-loading dependencies in node packages

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/curly-humans-prove.md

@@ -0,0 +1,7 @@
+---
+'@backstage/backend-test-utils': patch
+'@backstage/backend-defaults': patch
+'@backstage/config-loader': patch
+---
+
+Internal refactor to use explicit `require` for lazy-loading dependency.

packages/backend-defaults/src/entrypoints/database/connectors/postgres.ts

@@ -103,7 +103,7 @@ export async function buildPgDatabaseConfig(
     Connector: CloudSqlConnector,
     IpAddressTypes,
     AuthTypes,
-  } = await import('@google-cloud/cloud-sql-connector');
+  } = require('@google-cloud/cloud-sql-connector') as typeof import('@google-cloud/cloud-sql-connector');
   const connector = new CloudSqlConnector();
   const clientOpts = await connector.getOptions({
     instanceConnectionName: config.connection.instance,

packages/backend-test-utils/src/cache/memcache.ts

@@ -59,7 +59,8 @@ export async function startMemcachedContainer(
   image: string,
 ): Promise<Instance> {
   // Lazy-load to avoid side-effect of importing testcontainers
-  const { GenericContainer } = await import('testcontainers');
+  const { GenericContainer } =
+    require('testcontainers') as typeof import('testcontainers');
 
   const container = await new GenericContainer(image)
     .withExposedPorts(11211)

packages/backend-test-utils/src/cache/redis.ts

@@ -57,7 +57,8 @@ export async function connectToExternalRedis(
 
 export async function startRedisContainer(image: string): Promise<Instance> {
   // Lazy-load to avoid side-effect of importing testcontainers
-  const { GenericContainer } = await import('testcontainers');
+  const { GenericContainer } =
+    require('testcontainers') as typeof import('testcontainers');
 
   const container = await new GenericContainer(image)
     .withExposedPorts(6379)

packages/backend-test-utils/src/database/mysql.ts

@@ -72,7 +72,8 @@ export async function startMysqlContainer(image: string): Promise<{
   const password = uuid();
 
   // Lazy-load to avoid side-effect of importing testcontainers
-  const { GenericContainer } = await import('testcontainers');
+  const { GenericContainer } =
+    require('testcontainers') as typeof import('testcontainers');
 
   const container = await new GenericContainer(image)
     .withExposedPorts(3306)

packages/backend-test-utils/src/database/postgres.ts

@@ -72,7 +72,8 @@ export async function startPostgresContainer(image: string): Promise<{
   const password = uuid();
 
   // Lazy-load to avoid side-effect of importing testcontainers
-  const { GenericContainer } = await import('testcontainers');
+  const { GenericContainer } =
+    require('testcontainers') as typeof import('testcontainers');
 
   const container = await new GenericContainer(image)
     .withExposedPorts(5432)

packages/config-loader/src/schema/collect.ts

@@ -164,9 +164,8 @@ async function compileTsSchemas(paths: string[]) {
 
   // Lazy loaded, because this brings up all of TypeScript and we don't
   // want that eagerly loaded in tests
-  const { getProgramFromFiles, buildGenerator } = await import(
-    'typescript-json-schema'
-  );
+  const { getProgramFromFiles, buildGenerator } =
+    require('typescript-json-schema') as typeof import('typescript-json-schema');
 
   const program = getProgramFromFiles(paths, {
     incremental: false,