♻️ Use a shared tsconfig.base.json (#37215)

* Use a shared tsconfig.base.json

* Reverse tsconfig dependencies,

* Update eslint import resolver

* Add third_party in root

* Let wg-performance own tsconfig base

* Lint fix and remove extra extends

* Base can only contain passing paths

* Lint fixes

OWNERS

@@ -48,7 +48,7 @@
     },
     {
       // Locked down to minimize new import aliases being added
-      pattern: 'tsconfig.json',
+      pattern: 'tsconfig{,.base}.json',
       owners: [{name: 'ampproject/wg-performance', required: true}],
     },
   ],

src/core/tsconfig.json

@@ -1,19 +1,5 @@
 {
-  "compilerOptions": {
-    "allowJs": true,
-    "checkJs": true,
-    "noEmit": true,
-    "downlevelIteration": true,
-    "target": "esnext",
-    "moduleResolution": "node",
-    "strictNullChecks": true,
-    "noImplicitAny": true,
-    "lib": ["dom", "esnext", "es6"],
-    "paths": {
-      "#core": ["."],
-      "#core/*": ["./*"]
-    }
-  },
-  "include": ["**/*.js", "**/*.d.ts"],
-  "exclude": ["**/*.extern.js"]
+  "compilerOptions": {"baseUrl": "../.."},
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js", "**/*.d.ts"]
 }

tsconfig.base.json

@@ -0,0 +1,28 @@
+{
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "noEmit": true,
+    "downlevelIteration": true,
+    "target": "esnext",
+    "moduleResolution": "node",
+    "strictNullChecks": true,
+    "noImplicitAny": true,
+    "lib": ["dom", "esnext", "es6"],
+
+    "paths": {
+      "#compiler": ["./src/compiler"],
+      "#compiler/*": ["./src/compiler/*"],
+      "#core/*": ["./src/core/*"]
+    }
+  },
+
+  "exclude": [
+    "**/build/**",
+    "**/dist/**",
+    "**/dist.*/**",
+    "**/node_modules/**",
+    "**/third_party/**",
+    "**/*.extern.js"
+  ]
+}

tsconfig.json

@@ -1,9 +1,10 @@
 {
+  "extends": "./tsconfig.base.json",
+
   "compilerOptions": {
-    "allowJs": true,
     "baseUrl": ".",
     "outDir": "dist",
-    "noEmit": true,
+
     "paths": {
       "#3p/*": ["./3p/*"],
       "#ads/*": ["./ads/*"],
@@ -33,6 +34,6 @@
       "#third_party/*": ["./third_party/*"]
     }
   },
-  "include": ["src", "3p", "ads", "extensions", "test", "testing"],
-  "exclude": ["**/build/**", "**/dist/**", "**/dist.*/**", "**/node_modules/**"]
+
+  "include": ["src", "3p", "ads", "extensions", "test", "testing"]
 }