feat(graphql)!: use hook filters

BREAKING CHANGES:
- drops support for rollup below v2.78.0

Author: sapphi-red

packages/graphql/package.json

@@ -56,7 +56,7 @@
   ],
   "peerDependencies": {
     "graphql": ">=0.9.0",
-    "rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0"
+    "rollup": "^2.78.0||^3.0.0||^4.0.0"
   },
   "peerDependenciesMeta": {
     "rollup": {

packages/graphql/src/index.js

@@ -11,26 +11,31 @@ export default function graphql({ include, exclude } = {}) {
 
   return {
     name: 'graphql',
-    transform(source, id) {
-      if (!filter(id)) return null;
-      if (!filterExt.test(id)) return null;
+    transform: {
+      filter: {
+        id: filterExt
+      },
+      handler(source, id) {
+        if (!filter(id)) return null;
+        if (!filterExt.test(id)) return null;
 
-      // XXX: this.cachable() in graphql-tag/loader
-      const code = toESModules(
-        loader.call(
-          {
-            cacheable() {}
-          },
-          source
-        )
-      );
+        // XXX: this.cachable() in graphql-tag/loader
+        const code = toESModules(
+          loader.call(
+            {
+              cacheable() {}
+            },
+            source
+          )
+        );
 
-      const map = { mappings: '' };
+        const map = { mappings: '' };
 
-      return {
-        code,
-        map
-      };
+        return {
+          code,
+          map
+        };
+      }
     }
   };
 }