chore(ci): spread code correctly

scripts/ci/codegen/spreadGeneration.ts

@@ -1,5 +1,8 @@
 /* eslint-disable no-console */
+import { copy } from 'fs-extra';
+
 import {
+  emptyDirExceptForDotGit,
   gitBranchExists,
   gitCommit,
   LANGUAGES,
@@ -71,7 +74,8 @@ async function spreadGeneration(): Promise<void> {
     });
 
     const clientPath = toAbsolutePath(getLanguageFolder(lang));
-    await run(`cp -r ${clientPath}/ ${tempGitDir}`);
+    await emptyDirExceptForDotGit(tempGitDir);
+    await copy(clientPath, tempGitDir, { preserveTimestamps: true });
 
     await configureGitHubAuthor(tempGitDir);
     await run(`git add .`, { cwd: tempGitDir });

scripts/common.ts

@@ -3,6 +3,7 @@ import path from 'path';
 
 import execa from 'execa'; // https://github.com/sindresorhus/execa/tree/v5.1.1
 import { hashElement } from 'folder-hash';
+import { remove } from 'fs-extra';
 
 import openapitools from '../openapitools.json';
 
@@ -280,3 +281,11 @@ export async function buildCustomGenerators(verbose: boolean): Promise<void> {
 export async function gitBranchExists(branchName: string): Promise<boolean> {
   return Boolean(await run(`git ls-remote --heads origin ${branchName}`));
 }
+
+export async function emptyDirExceptForDotGit(dir: string): Promise<void> {
+  for (const file of await fsp.readdir(dir)) {
+    if (file !== '.git') {
+      await remove(path.resolve(dir, file));
+    }
+  }
+}

scripts/release/process-release.ts

@@ -1,10 +1,9 @@
 /* eslint-disable no-console */
 import fsp from 'fs/promises';
-import path from 'path';
 
 import dotenv from 'dotenv';
 import execa from 'execa';
-import { copy, remove } from 'fs-extra';
+import { copy } from 'fs-extra';
 import semver from 'semver';
 import type { ReleaseType } from 'semver';
 
@@ -16,6 +15,7 @@ import {
   exists,
   getGitHubUrl,
   gitCommit,
+  emptyDirExceptForDotGit,
 } from '../common';
 import { getLanguageFolder } from '../config';
 
@@ -127,14 +127,6 @@ async function updateOpenApiTools(
   );
 }
 
-async function emptyDirExceptForDotGit(dir: string): Promise<void> {
-  for (const file of await fsp.readdir(dir)) {
-    if (file !== '.git') {
-      await remove(path.resolve(dir, file));
-    }
-  }
-}
-
 async function updateChangelog({
   lang,
   issueBody,