[v4] drop support of Node.js 12/14/16, GraphQL 14/15 (#1793)

.changeset/rare-planes-love.md

@@ -0,0 +1,5 @@
+---
+'@graphql-eslint/eslint-plugin': major
+---
+
+drop support of Node.js 12/14/16, GraphQL 14/15

.eslintrc.cjs

@@ -69,13 +69,6 @@ module.exports = {
         node: true,
       },
     },
-    {
-      files: ['packages/plugin/src/**'],
-      rules: {
-        // remove in v4 major
-        'unicorn/prefer-node-protocol': 'off',
-      },
-    },
     {
       files: ['packages/plugin/src/rules/index.ts'],
       rules: {

.github/workflows/tests.yml

@@ -35,12 +35,6 @@ jobs:
           nodeVersion: 18
           packageManager: pnpm
 
-      - name: Use GraphQL v${{matrix.graphql_version}}
-        run: node scripts/match-graphql.js ${{matrix.graphql_version}}
-
-      - name: Install Dependencies
-        run: pnpm i --no-frozen-lockfile
-
       - name: Build
         run: pnpm build
 
@@ -51,8 +45,8 @@ jobs:
     needs: [typecheck]
     strategy:
       matrix:
-        node_version: [16, 18, 20]
-        graphql_version: [15, 16]
+        node_version: [18, 20]
+        graphql_version: [16]
 
     steps:
       - name: Checkout Master
@@ -66,12 +60,6 @@ jobs:
           nodeVersion: ${{matrix.node_version}}
           packageManager: pnpm
 
-      - name: Use GraphQL v${{matrix.graphql_version}}
-        run: node scripts/match-graphql.js ${{matrix.graphql_version}}
-
-      - name: Install Dependencies
-        run: pnpm i --no-frozen-lockfile
-
       - name: Test
         run: pnpm test
         env:

package.json

@@ -50,9 +50,6 @@
     "typescript": "5.1.6",
     "vitest": "0.30.1"
   },
-  "resolutions": {
-    "graphql": "16.7.1"
-  },
   "pnpm": {
     "patchedDependencies": {
       "eslint@8.46.0": "patches/eslint@8.46.0.patch",

packages/plugin/package.json

@@ -6,7 +6,7 @@
   "author": "Dotan Simha <dotansimha@gmail.com>",
   "license": "MIT",
   "engines": {
-    "node": ">=12"
+    "node": ">=18"
   },
   "main": "dist/cjs/index.js",
   "module": "dist/esm/index.js",
@@ -39,7 +39,7 @@
     "test": "vitest"
   },
   "peerDependencies": {
-    "graphql": "^0.8.0 || ^0.9.0 || ^0.10.0 || ^0.11.0 || ^0.12.0 || ^0.13.0 || ^14.0.0 || ^15.0.0 || ^16.0.0"
+    "graphql": "^16"
   },
   "dependencies": {
     "@graphql-tools/code-file-loader": "^7.3.6",

packages/plugin/src/documents.ts

@@ -1,4 +1,4 @@
-import { resolve } from 'path';
+import { resolve } from 'node:path';
 import { Source } from '@graphql-tools/utils';
 import debugFactory from 'debug';
 import fg from 'fast-glob';

packages/plugin/src/estree-converter/utils.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
 import { AST } from 'eslint';
 import { Comment, SourceLocation } from 'estree';
 import {
@@ -25,40 +24,14 @@ export function getBaseType(type: GraphQLOutputType): GraphQLNamedType {
   return type;
 }
 
-// Hardcoded type because tests fails on graphql 15
-type TokenKindValue =
-  | ':'
-  | '!'
-  | '...'
-  | '('
-  | ')'
-  | '['
-  | ']'
-  | '{'
-  | '}'
-  | '@'
-  | '&'
-  // | '<EOF>'
-  | '<SOF>'
-  | '='
-  | '|'
-  | '$'
-  | 'BlockString'
-  | 'Comment'
-  | 'Float'
-  | 'Int'
-  | 'Name'
-  | 'String';
-
-export function convertToken<T extends TokenKindValue | 'Block' | 'Line'>(
+export function convertToken<T extends TokenKind | 'Block' | 'Line'>(
   token: Token,
   type: T,
 ): Omit<AST.Token, 'type'> & { type: T } {
   const { line, column, end, start, value } = token;
   return {
     type,
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion -- TODO: remove `!` when drop support of graphql@15
-    value: value!,
+    value,
     /*
      * ESLint has 0-based column number
      * https://eslint.org/docs/developer-guide/working-with-rules#contextreport
@@ -77,25 +50,9 @@ export function convertToken<T extends TokenKindValue | 'Block' | 'Line'>(
   };
 }
 
-function getLexer(source: Source): Lexer {
-  // GraphQL v14
-  const gqlLanguage = require('graphql/language');
-  if (gqlLanguage?.createLexer) {
-    return gqlLanguage.createLexer(source, {});
-  }
-
-  // GraphQL v15
-  const { Lexer: LexerCls } = require('graphql');
-  if (LexerCls && typeof LexerCls === 'function') {
-    return new LexerCls(source);
-  }
-
-  throw new Error('Unsupported GraphQL version! Please make sure to use GraphQL v14 or newer!');
-}
-
 export function extractTokens(filePath: string, code: string): AST.Token[] {
   const source = new Source(code, filePath);
-  const lexer = getLexer(source);
+  const lexer = new Lexer(source);
   const tokens: AST.Token[] = [];
   let token = lexer.advance();
 
@@ -120,8 +77,7 @@ export function extractComments(loc?: Location): Comment[] {
       const comment = convertToken(
         token,
         // `eslint-disable` directive works only with `Block` type comment
-        // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion -- TODO: remove `!` when drop support of graphql@15
-        token.value!.trimStart().startsWith('eslint') ? 'Block' : 'Line',
+        token.value.trimStart().startsWith('eslint') ? 'Block' : 'Line',
       );
       comments.push(comment);
     }

packages/plugin/src/graphql-config.ts

@@ -1,4 +1,4 @@
-import { dirname } from 'path';
+import { dirname } from 'node:path';
 import { CodeFileLoader } from '@graphql-tools/code-file-loader';
 import debugFactory from 'debug';
 import {

packages/plugin/src/processor.ts

@@ -1,4 +1,4 @@
-import { relative } from 'path';
+import { relative } from 'node:path';
 import {
   gqlPluckFromCodeStringSync,
   GraphQLTagPluckOptions,