Add GraphQL lint task with Apollo tooling

.eslintrc.yml

@@ -119,6 +119,7 @@ overrides:
       - '@graphql-eslint'
     parserOptions:
       parser: '@graphql-eslint/eslint-plugin'
+      schema: './tmp/tests/graphql/gitlab_schema_apollo.graphql'
       operations:
          - '{,ee/,jh/}app/**/*.graphql'
       # You can run `bundle exec rake gitlab:graphql:schema:dump` and then uncomment this line

.gitlab/ci/static-analysis.gitlab-ci.yml

@@ -52,12 +52,17 @@ eslint:
     - .static-analysis-base
     - .yarn-cache
     - .static-analysis:rules:ee
-  needs: []
+  needs: ['graphql-schema-dump']
   variables:
     USE_BUNDLE_INSTALL: "false"
   script:
     - run_timed_command "retry yarn install --frozen-lockfile"
+    - yarn run apollo client:download-schema --config=config/apollo.config.js tmp/tests/graphql/gitlab_schema_apollo.graphql
     - run_timed_command "yarn run lint:eslint:all"
+  artifacts:
+    name: graphql-schema-apollo
+    paths:
+      - tmp/tests/graphql/gitlab_schema_apollo.graphql
 
 eslint as-if-foss:
   extends:

config/apollo.config.js

+module.exports = {
+  client: {
+    service: {
+      name: 'gitlab',
+      localSchemaFile: './tmp/tests/graphql/gitlab_schema.graphql',
+    },
+    includes: ['../{ee/,jh/,}app/assets/javascripts/**/*.{js,graphql}'],
+    excludes: ['../{ee/,jh/,}spec/{frontend,frontend_integration}/**/*'],
+  },
+};