build: run TypeScript 6 and 7 side by side

tools/build-scripts/package.json

@@ -4,11 +4,11 @@
     "version": "0.0.0",
     "type": "module",
     "scripts": {
-        "build": "tsc -p tsconfig.json",
+        "build": "pnpm -w tsc7 -p tools/build-scripts/tsconfig.json",
         "dev": "node -e \"console.log('dev not configured')\"",
         "lint": "node -e \"console.log('lint not configured')\"",
         "test": "node -e \"console.log('test not configured')\"",
-        "typecheck": "tsc -b",
+        "typecheck": "pnpm -w tsc7 -b tools/build-scripts/tsconfig.json",
         "build:server": "node ./build-server.mjs"
     }
 }

tools/build-scripts/tsconfig.json

@@ -1,7 +1,6 @@
 {
     "extends": "../../tsconfig.base.json",
     "compilerOptions": {
-        "baseUrl": "../..",
         "outDir": "dist",
         "rootDir": "src",
         "composite": true

tools/check-typescript-toolchain.mjs

@@ -0,0 +1,38 @@
+import { spawnSync } from 'node:child_process';
+import { createRequire } from 'node:module';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const workspaceRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const expectedApiVersion = '6.0.3';
+const expectedCliVersion = '7.0.2';
+
+const consumers = [
+    ['root', 'package.json'],
+    ['game frontend', 'app/game-frontend/package.json'],
+    ['gateway frontend', 'app/gateway-frontend/package.json'],
+];
+
+for (const [label, packagePath] of consumers) {
+    const requireFromConsumer = createRequire(path.join(workspaceRoot, packagePath));
+    const version = requireFromConsumer('typescript').version;
+    if (version !== expectedApiVersion) {
+        throw new Error(`${label} resolved TypeScript API ${version}; expected ${expectedApiVersion}`);
+    }
+}
+
+const nativeTscPath = path.join(workspaceRoot, 'node_modules/@typescript/native/bin/tsc');
+const nativeResult = spawnSync(process.execPath, [nativeTscPath, '--version'], {
+    cwd: workspaceRoot,
+    encoding: 'utf8',
+});
+if (nativeResult.status !== 0) {
+    throw new Error(nativeResult.stderr || nativeResult.stdout || 'TypeScript 7 tsc failed');
+}
+
+const cliVersion = nativeResult.stdout.trim().replace(/^Version\s+/, '');
+if (cliVersion !== expectedCliVersion) {
+    throw new Error(`native tsc resolved ${cliVersion}; expected ${expectedCliVersion}`);
+}
+
+console.log(`TypeScript API ${expectedApiVersion}; native tsc ${expectedCliVersion}`);

tools/integration-tests/package.json

@@ -5,7 +5,7 @@
     "type": "module",
     "scripts": {
         "test:integration": "vitest run --config vitest.config.ts",
-        "typecheck": "tsc -b"
+        "typecheck": "pnpm -w tsc7 -b tools/integration-tests/tsconfig.json"
     },
     "dependencies": {
         "@sammo-ts/common": "workspace:*",

tools/legacy-db-migration/package.json

@@ -11,7 +11,7 @@
         "lint": "eslint .",
         "lint:fix": "eslint . --fix",
         "test": "vitest run --config vitest.config.ts",
-        "typecheck": "tsc -b",
+        "typecheck": "pnpm -w tsc7 -b tools/legacy-db-migration/tsconfig.json",
         "migrate": "tsx src/cli.ts"
     },
     "dependencies": {
@@ -23,7 +23,7 @@
         "@types/pg": "^8.21.0",
         "tsdown": "^0.22.14",
         "tsx": "^4.23.12",
-        "typescript": "6.0.2",
+        "typescript": "6.0.3",
         "vitest": "^4.1.10"
     }
 }

tools/test-dbms/tsconfig.json

@@ -1,7 +1,6 @@
 {
     "extends": "../../tsconfig.base.json",
     "compilerOptions": {
-        "baseUrl": "../..",
         "noEmit": true,
         "types": ["node"]
     },