Add support for --no-bracket-spacing for GraphQL (#2255)

Fixes #2252

src/printer-graphql.js

@@ -143,7 +143,7 @@ function genericPrint(path, options, print) {
       return group(
         concat([
           "{",
-          n.fields.length > 0 ? " " : "",
+          options.bracketSpacing && n.fields.length > 0 ? " " : "",
           indent(
             concat([
               softline,
@@ -154,7 +154,7 @@ function genericPrint(path, options, print) {
             ])
           ),
           softline,
-          ifBreak("", n.fields.length > 0 ? " " : ""),
+          ifBreak("", options.bracketSpacing && n.fields.length > 0 ? " " : ""),
           "}"
         ])
       );

tests/graphql_bracket_spacing/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,29 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`bracket_spacing.graphql 1`] = `
+fragment Visit on HighlightedVisit
+  @argumentDefinitions(
+    count: {type: "Int", defaultValue: 20}
+  ) {
+  name
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+fragment Visit on HighlightedVisit
+  @argumentDefinitions(count: { type: "Int", defaultValue: 20 }) {
+  name
+}
+`;
+
+exports[`bracket_spacing.graphql 2`] = `
+fragment Visit on HighlightedVisit
+  @argumentDefinitions(
+    count: {type: "Int", defaultValue: 20}
+  ) {
+  name
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+fragment Visit on HighlightedVisit
+  @argumentDefinitions(count: {type: "Int", defaultValue: 20}) {
+  name
+}
+`;

tests/graphql_bracket_spacing/bracket_spacing.graphql

@@ -0,0 +1,6 @@
+fragment Visit on HighlightedVisit
+  @argumentDefinitions(
+    count: {type: "Int", defaultValue: 20}
+  ) {
+  name
+}

tests/graphql_bracket_spacing/jsfmt.spec.js

@@ -0,0 +1,2 @@
+run_spec(__dirname, { parser: "graphql" });
+run_spec(__dirname, { parser: "graphql", bracketSpacing: false });