build: refactor frontend build

* Always write ESLint output to a file in addition to the console to make the
  lintFrontend task cacheable in Gradle (according to the output file).
* Make sure frontend task inputs are declared properly for caching.
* Make sure Typescript type checking is incremental.
* Do not use @tsconfig, because both Vite and SonarScanner have problems with
  extending tsconfig files from Yarn PnP modules.

1 files changed, 21 insertions, 3 deletions

diff --git a/subprojects/frontend/tsconfig.base.json b/subprojects/frontend/tsconfig.base.json
index b960e93c..30e707ae 100644
--- a/subprojects/frontend/tsconfig.base.json
+++ b/subprojects/frontend/tsconfig.base.json
@@ -1,10 +1,28 @@
 {
-  "extends": "@tsconfig/strictest",
   "compilerOptions": {
-    "useDefineForClassFields": true,
+    "strict": true,
+    "allowUnusedLabels": false,
+    "allowUnreachableCode": false,
+    "exactOptionalPropertyTypes": true,
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitOverride": true,
+    "noImplicitReturns": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
     "verbatimModuleSyntax": false,
     "isolatedModules": true,
+    "checkJs": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "useDefineForClassFields": true,
     "module": "es2022",
-    "moduleResolution": "node"
+    "moduleResolution": "node",
+    "incremental": true,
+    "declaration": true,
+    "emitDeclarationOnly": true,
+    "outDir": "build/typescript"
   }
 }