CIF-2658 - Automate pruned schema generation with CLI tool (#164)

* releng - Update CIF Add-on UI Schemas

* releng - Update CIF Add-on Queries

* releng - Update CIF Core Components Queries

* CIF - Automate pruned schema generation with CLI tool

* CIF-2658 - Add feedback

* CIF-2658 - Fix unit test

Author: herzog31

README.md

@@ -148,9 +148,9 @@ In order to illustrate these requirements, the `localSchema()` function in [disp
 
 ## Schema documentation
 
-As stated in the previous section, GraphQL introspection allows users to discover and browse a GraphQL schema in order to understand the types of queries it supports. When implementing a 3rd-party integration and because the Magento schema is large, it is important that one understands the parts of the Magento schema that are actually used by the CIF connector and components. To document this, we have implemented a tool that uses the GraphQL queries used by the CIF connector and components in order to create the subset of the Magento schema that MUST be implemented in order to support the CIF connector and components.
+As stated in the previous section, GraphQL introspection allows users to discover and browse a GraphQL schema in order to understand the types of queries it supports. When implementing a 3rd-party integration and because the Magento schema is large, it is important that one understands the parts of the Magento schema that are actually used by the CIF add-on and core components. To document this, we have implemented a tool that uses the GraphQL queries used by the CIF add-on and components in order to create the subset of the Magento schema that MUST be implemented in order to support the CIF add-on and components.
 
-This "pruned" schema is automatically generated and included in this repository. If needed, one can regenerate it by running `npm run doc`. Note that this requires that you have the [jq](https://github.com/stedolan/jq) tool installed on your machine.
+To generate a "pruned" schema, please check the [schemas](schemas/README.md) folder.
 
 To introspect this schema, it is automatically deployed when running `aio app deploy` in a web action called `cif-schema`. Using a GraphQL introspection tool like the included `GraphiQL`, one can then easily browse the pruned schema at the `https://adobeioruntime.net/api/v1/web/NAMESPACE/graphql-reference/cif-schema` URL. This action only supports introspection, so you cannot execute any query. It however documents all the fields and types that are currently being used by the CIF connector and components.
 

actions/common/SchemaBuilder.js

@@ -40,7 +40,7 @@ class SchemaBuilder {
         }
 
         // Remove "Mutation" root type if it doesn't have any field
-        if (mutationRootType && mutationRootType.fields.length == 0) {
+        if (!mutationRootType || (mutationRootType && mutationRootType.fields.length == 0)) {
             this.removeMutationType();
         }
 

actions/documentation/generate.js

@@ -14,7 +14,7 @@
 
 'use strict';
 
-const magentoSchema = require('../resources/magento-schema-2.4.3ee.pruned.min.json');
+const magentoSchema = require('../resources/pruned-schema.min.json');
 const { buildClientSchema, graphql } = require('graphql');
 
 function resolve(args) {