refactor(terraform): Use util function for cache dir creation (#10588)

lib/manager/terraform/lockfile/hash.ts

@@ -10,8 +10,9 @@ import type {
 import { logger } from '../../../logger';
 import * as packageCache from '../../../util/cache/package';
 import * as fs from '../../../util/fs';
+import { ensureCacheDir } from '../../../util/fs';
 import { Http } from '../../../util/http';
-import { getCacheDir, repositoryRegex } from './util';
+import { repositoryRegex } from './util';
 
 const http = new Http(TerraformProviderDatasource.id);
 const hashCacheTTL = 10080; // in seconds == 1 week
@@ -75,7 +76,7 @@ async function getReleaseBackendIndex(
 export async function calculateHashes(
   builds: TerraformBuild[]
 ): Promise<string[]> {
-  const cacheDir = await getCacheDir();
+  const cacheDir = await ensureCacheDir('./others/terraform');
 
   // for each build download ZIP, extract content and generate hash for all containing files
   const hashes = await pMap(

lib/manager/terraform/lockfile/util.ts

-import { join } from 'upath';
-import { getAdminConfig } from '../../../config/admin';
-import { logger } from '../../../logger';
-import { ensureDir, getSiblingFileName, readLocalFile } from '../../../util/fs';
+import { getSiblingFileName, readLocalFile } from '../../../util/fs';
 import { get as getVersioning } from '../../../versioning';
 import type { UpdateArtifactsResult } from '../../types';
 import type {
@@ -210,10 +207,3 @@ export function writeLockUpdates(
     },
   };
 }
-
-export async function getCacheDir(): Promise<string> {
-  const cacheDir = join(getAdminConfig().cacheDir, './others/terraform');
-  await ensureDir(cacheDir);
-  logger.debug(`Using terraform cache: ${cacheDir}`);
-  return cacheDir;
-}