Accept output of generateFragments in compileNodeQueries + prettier fixes

Author: vladar

.prettierignore

@@ -0,0 +1,2 @@
+package.json
+package-lock.json

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "arrowParens": "avoid",
+  "semi": false
+}

README.md

@@ -908,7 +908,7 @@ function providePostDescriptionArguments(field, parentType) {
 generateDefaultFragments({
   schema,
   gatsbyNodeTypes,
-  defaultArgumentValues: [providePostDescriptionArguments]
+  defaultArgumentValues: [providePostDescriptionArguments],
 })
 ```
 
@@ -934,10 +934,14 @@ interface ICompileNodeDocumentsArgs {
   schema: GraphQLSchema
   gatsbyNodeTypes: IGatsbyNodeConfig[]
   gatsbyFieldAliases?: IGatsbyFieldAliases
-  customFragments: Array<GraphQLSource>
+  customFragments:
+    | Array<GraphQLSource | string>
+    | Map<RemoteTypeName, GraphQLSource | string>
 }
 
-function compileNodeQueries(args: ICompileNodeDocumentsArgs): Map<RemoteTypeName, DocumentNode>
+function compileNodeQueries(
+  args: ICompileNodeDocumentsArgs
+): Map<RemoteTypeName, DocumentNode>
 ```
 
 ### Schema customization tools
@@ -971,10 +975,14 @@ that were updated in the remote API since the last Gatsby build.
 See dedicated section [sourcing changes](#sourcing-changes-delta) for details.
 
 ```ts
-async function sourceNodeChanges(config: ISourcingConfig, delta: ISourceChanges): Promise<void>
+async function sourceNodeChanges(
+  config: ISourcingConfig,
+  delta: ISourceChanges
+): Promise<void>
 ```
 
 Related types:
+
 ```ts
 interface IRemoteId {
   [remoteIdField: string]: unknown
@@ -999,7 +1007,6 @@ interface ISourceChanges {
 }
 ```
 
-
 ## TODO:
 
 - [ ] Allow complex nested `remoteIdFields`

src/compile-node-queries/compile-node-queries.ts

@@ -1,4 +1,5 @@
 import { GraphQLSchema, DocumentNode, parse } from "graphql"
+import { flatMap } from "lodash"
 import { defaultGatsbyFieldAliases } from "../config/default-gatsby-field-aliases"
 import { compileNodeDocument } from "./compile-node-document"
 import { compileNodeFragments } from "./compile-node-fragments"
@@ -14,7 +15,9 @@ interface ICompileNodeDocumentsArgs {
   schema: GraphQLSchema
   gatsbyNodeTypes: IGatsbyNodeConfig[]
   gatsbyFieldAliases?: IGatsbyFieldAliases
-  customFragments: Array<GraphQLSource | string>
+  customFragments:
+    | Array<GraphQLSource | string>
+    | Map<RemoteTypeName, GraphQLSource | string>
 }
 
 /**
@@ -28,9 +31,13 @@ export function compileNodeQueries({
   customFragments,
 }: ICompileNodeDocumentsArgs): Map<RemoteTypeName, DocumentNode> {
   const documents = new Map<RemoteTypeName, DocumentNode>()
-  const fragments = customFragments
-    .map(fragment => parse(fragment))
-    .flatMap(doc => doc.definitions.filter(GraphQLAST.isFragment))
+  const allFragmentDocs: DocumentNode[] = []
+  customFragments.forEach(fragmentString => {
+    allFragmentDocs.push(parse(fragmentString))
+  })
+  const fragments = flatMap(allFragmentDocs, doc =>
+    doc.definitions.filter(GraphQLAST.isFragment)
+  )
 
   const nodeFragmentMap = compileNodeFragments({
     schema,