fix: concurrent directory creation

Author: mdevils

src/cli/index.ts

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
-import * as fs from 'fs';
-import path from 'path';
+import * as fs from 'node:fs';
+import path from 'node:path';
 import yargs from 'yargs';
 import {hideBin} from 'yargs/helpers';
 import {compareGenerationResult} from './compare-generation-result';
@@ -14,6 +14,7 @@ import {
     openapiToTypescriptClient
 } from '../schema-to-typescript/openapi-to-typescript-client';
 import {loadOpenApiDocument} from '../schemas/load-open-api-document';
+import {makeDir} from '../utils/make-dir';
 import {postprocessFiles} from '../utils/postprocess-files';
 
 async function loadConfig(filename: string): Promise<ApiTypescriptGeneratorConfig> {
@@ -87,7 +88,7 @@ yargs(hideBin(process.argv))
                             }
                             for (const directoryPath of allDirectories) {
                                 try {
-                                    await fs.promises.mkdir(directoryPath, {recursive: true});
+                                    await makeDir(directoryPath);
                                 } catch (e) {
                                     throw new Error(
                                         `Could not create directory "${directoryPath}": ${e instanceof Error ? e.message : e}.`

src/utils/make-dir.ts

@@ -0,0 +1,11 @@
+import {mkdir} from 'node:fs/promises';
+
+export async function makeDir(path: string) {
+    try {
+        await mkdir(path, {recursive: true});
+    } catch (e) {
+        if (e instanceof Error && (e as NodeJS.ErrnoException).code !== 'EEXIST') {
+            throw e;
+        }
+    }
+}

src/utils/postprocess-files.ts

@@ -1,6 +1,7 @@
 import fs from 'node:fs/promises';
 import path from 'node:path';
 import type {ESLint as ESLintClass} from 'eslint';
+import {makeDir} from './make-dir';
 import {
     ClientGenerationResultFile,
     CommonOpenApiClientGeneratorConfigPostprocess
@@ -34,7 +35,7 @@ export async function postprocessFiles({
                     try {
                         await fs.stat(currentDirectory);
                     } catch (e) {
-                        await fs.mkdir(currentDirectory);
+                        await makeDir(currentDirectory);
                         directoriesToRemove.unshift(currentDirectory);
                     }
                     const subDirectory = directoryBits.shift();