feat: Only generate utils if they don't exist (#288)

* feat: Only generate utils when they don't exists

* run fix:prettier

---------

Co-authored-by: jan.silhan <[email protected]>

Author: rajzik

plugins/typescript/CHANGELOG.md

@@ -2,24 +2,22 @@
 
 ## [10.0.0](https://github.com/fabien0102/openapi-codegen/compare/typescript-v9.2.0...typescript-v10.0.0) (2025-02-04)
 
-
 ### ⚠ BREAKING CHANGES
 
-* deep merge variables with fetcherOptions from context. ([#284](https://github.com/fabien0102/openapi-codegen/issues/284))
-* Generated enum should be in pascal case ([#282](https://github.com/fabien0102/openapi-codegen/issues/282))
+- deep merge variables with fetcherOptions from context. ([#284](https://github.com/fabien0102/openapi-codegen/issues/284))
+- Generated enum should be in pascal case ([#282](https://github.com/fabien0102/openapi-codegen/issues/282))
 
 ### Features
 
-* Adding constant handling ([#220](https://github.com/fabien0102/openapi-codegen/issues/220)) ([8944be4](https://github.com/fabien0102/openapi-codegen/commit/8944be44a36a3100cf2ac9f683d245b59a3f954e))
-
+- Adding constant handling ([#220](https://github.com/fabien0102/openapi-codegen/issues/220)) ([8944be4](https://github.com/fabien0102/openapi-codegen/commit/8944be44a36a3100cf2ac9f683d245b59a3f954e))
 
 ### Bug Fixes
 
-* deep merge variables with fetcherOptions from context. ([#284](https://github.com/fabien0102/openapi-codegen/issues/284)) ([2678ea4](https://github.com/fabien0102/openapi-codegen/commit/2678ea407a64cd373adddd868a969b2e3bcc586a))
-* Escape special chars in enum name ([#283](https://github.com/fabien0102/openapi-codegen/issues/283)) ([3392588](https://github.com/fabien0102/openapi-codegen/commit/33925883600418bbdfff65437ce4a1b796766b12))
-* Fixed fetcher template to compile when noUncheckedIndexedAccess ts compile option is set ([#228](https://github.com/fabien0102/openapi-codegen/issues/228)) ([ecf90cd](https://github.com/fabien0102/openapi-codegen/commit/ecf90cd247e4133a13557ab83fed3ced1a9460d5))
-* Generated enum should be in pascal case ([#282](https://github.com/fabien0102/openapi-codegen/issues/282)) ([e16bc82](https://github.com/fabien0102/openapi-codegen/commit/e16bc826a580aaae2f7b29fbb31fe53a7d6a6f57))
-* Invalid variable access inside fetcher ([#277](https://github.com/fabien0102/openapi-codegen/issues/277)) ([ea21f34](https://github.com/fabien0102/openapi-codegen/commit/ea21f34552c47a10151e0536fb2c521d687924c1))
+- deep merge variables with fetcherOptions from context. ([#284](https://github.com/fabien0102/openapi-codegen/issues/284)) ([2678ea4](https://github.com/fabien0102/openapi-codegen/commit/2678ea407a64cd373adddd868a969b2e3bcc586a))
+- Escape special chars in enum name ([#283](https://github.com/fabien0102/openapi-codegen/issues/283)) ([3392588](https://github.com/fabien0102/openapi-codegen/commit/33925883600418bbdfff65437ce4a1b796766b12))
+- Fixed fetcher template to compile when noUncheckedIndexedAccess ts compile option is set ([#228](https://github.com/fabien0102/openapi-codegen/issues/228)) ([ecf90cd](https://github.com/fabien0102/openapi-codegen/commit/ecf90cd247e4133a13557ab83fed3ced1a9460d5))
+- Generated enum should be in pascal case ([#282](https://github.com/fabien0102/openapi-codegen/issues/282)) ([e16bc82](https://github.com/fabien0102/openapi-codegen/commit/e16bc826a580aaae2f7b29fbb31fe53a7d6a6f57))
+- Invalid variable access inside fetcher ([#277](https://github.com/fabien0102/openapi-codegen/issues/277)) ([ea21f34](https://github.com/fabien0102/openapi-codegen/commit/ea21f34552c47a10151e0536fb2c521d687924c1))
 
 ## [9.2.0](https://github.com/fabien0102/openapi-codegen/compare/typescript-v9.1.0...typescript-v9.2.0) (2025-01-31)
 

plugins/typescript/src/generators/generateFetchers.test.ts

@@ -72,8 +72,8 @@ describe("generateFetchers", () => {
       config
     );
 
-    expect(writeFile.mock.calls[1][0]).toBe("petstoreComponents.ts");
-    expect(writeFile.mock.calls[1][1]).toMatchInlineSnapshot(`
+    expect(writeFile.mock.calls[0][0]).toBe("petstoreComponents.ts");
+    expect(writeFile.mock.calls[0][1]).toMatchInlineSnapshot(`
       "/**
        * Generated by @openapi-codegen
        *
@@ -124,8 +124,8 @@ describe("generateFetchers", () => {
       { ...config, filenamePrefix: "" }
     );
 
-    expect(writeFile.mock.calls[1][0]).toBe("components.ts");
-    expect(writeFile.mock.calls[1][1]).toMatchInlineSnapshot(`
+    expect(writeFile.mock.calls[0][0]).toBe("components.ts");
+    expect(writeFile.mock.calls[0][1]).toMatchInlineSnapshot(`
       "/**
        * Generated by @openapi-codegen
        *
@@ -183,8 +183,8 @@ describe("generateFetchers", () => {
       config
     );
 
-    expect(writeFile.mock.calls[1][0]).toBe("petstoreComponents.ts");
-    expect(writeFile.mock.calls[1][1]).toMatchInlineSnapshot(`
+    expect(writeFile.mock.calls[0][0]).toBe("petstoreComponents.ts");
+    expect(writeFile.mock.calls[0][1]).toMatchInlineSnapshot(`
       "/**
        * Generated by @openapi-codegen
        *
@@ -244,8 +244,8 @@ describe("generateFetchers", () => {
       config
     );
 
-    expect(writeFile.mock.calls[1][0]).toBe("petstoreComponents.ts");
-    expect(writeFile.mock.calls[1][1]).toMatchInlineSnapshot(`
+    expect(writeFile.mock.calls[0][0]).toBe("petstoreComponents.ts");
+    expect(writeFile.mock.calls[0][1]).toMatchInlineSnapshot(`
       "/**
        * Generated by @openapi-codegen
        *

plugins/typescript/src/generators/generateFetchers.ts

@@ -225,7 +225,10 @@ export const generateFetchers = async (context: Context, config: Config) => {
     }
   );
 
-  if (usedImportsKeys.includes("utils")) {
+  if (
+    !context.existsFile(`${utilsFilename}.ts`) &&
+    usedImportsKeys.includes("utils")
+  ) {
     await context.writeFile(`${utilsFilename}.ts`, getUtils());
   }