ESLint: require empty line between import groups (#2376)

Author: IvanGoncharov

.eslintrc.yml

@@ -103,7 +103,7 @@ rules:
   import/no-duplicates: error
   import/no-namespace: error
   import/extensions: [error, never] # TODO: switch to ignorePackages
-  import/order: error
+  import/order: [error, { newlines-between: always-and-inside-groups }]
   import/newline-after-import: error
   import/prefer-default-export: off
   import/max-dependencies: off

resources/build.js

@@ -5,7 +5,9 @@
 const fs = require('fs');
 const path = require('path');
 const assert = require('assert');
+
 const babel = require('@babel/core');
+
 const {
   copyFile,
   writeFile,

resources/check-cover.js

@@ -3,6 +3,7 @@
 'use strict';
 
 const path = require('path');
+
 const {
   exec,
   execAsync,

resources/check-cycles.js

@@ -6,6 +6,7 @@ const os = require('os');
 const fs = require('fs');
 const path = require('path');
 const assert = require('assert');
+
 const { exec } = require('./utils');
 
 const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'flow-dep-graph'));

resources/gen-version.js

@@ -3,6 +3,7 @@
 'use strict';
 
 const { version } = require('../package.json');
+
 const { writeFile, parseSemver } = require('./utils');
 
 const { major, minor, patch, preReleaseTag } = parseSemver(version);

src/error/formatError.d.ts

@@ -1,4 +1,5 @@
 import { SourceLocation } from '../language/location';
+
 import { GraphQLError } from './GraphQLError';
 
 /**

src/error/locatedError.d.ts

@@ -1,4 +1,5 @@
 import { ASTNode } from '../language/ast';
+
 import { GraphQLError } from './GraphQLError';
 
 /**

src/error/syntaxError.d.ts

@@ -1,4 +1,5 @@
 import { Source } from '../language/source';
+
 import { GraphQLError } from './GraphQLError';
 
 /**

src/jsutils/toObjMap.js

@@ -1,6 +1,7 @@
 // @flow strict
 
 import objectEntries from '../polyfills/objectEntries';
+
 import {
   type ObjMap,
   type ObjMapLike,

src/language/__tests__/parser-test.js

@@ -14,6 +14,7 @@ import { TokenKind } from '../tokenKind';
 import { parse, parseValue, parseType } from '../parser';
 
 import { kitchenSinkQuery } from '../../__fixtures__';
+
 import toJSONDeep from './toJSONDeep';
 
 function expectSyntaxError(text) {