ESLintを最新にしてFlat Configにする

build/afterAllArtifactBuild.js

@@ -1,4 +1,4 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
+/* eslint-disable @typescript-eslint/no-require-imports */
 const afterWindowsNsisWebArtifactBuild =
   require("./afterNsisWebArtifactBuild").default;
 

build/afterNsisWebArtifactBuild.js

@@ -1,4 +1,4 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
+/* eslint-disable @typescript-eslint/no-require-imports */
 const splitNsisArchive = require("./splitNsisArchive").default;
 
 // target: electron-builder.Target

build/splitNsisArchive.js

@@ -1,4 +1,4 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
+/* eslint-disable @typescript-eslint/no-require-imports */
 const crypto = require("crypto");
 const fs = require("fs");
 const path = require("path");

electron-builder.config.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-require-imports */
 // @ts-check
 const path = require("path");
 const fs = require("fs");

eslint-plugin/create-rule.mjs

@@ -0,0 +1,7 @@
+// @ts-check
+import { ESLintUtils } from "@typescript-eslint/utils";
+
+export const createRule = ESLintUtils.RuleCreator(
+  (name) =>
+    `https://github.com/VOICEVOX/voicevox/blob/main/eslint-plugin/${name}.md`,
+);

eslint-plugin/index.d.mts

@@ -0,0 +1,8 @@
+import { FlatConfig } from "@typescript-eslint/utils/ts-eslint";
+
+declare const plugin: {
+  configs: {
+    all: FlatConfig.ConfigArray;
+  };
+};
+export default plugin;

eslint-plugin/index.mjs

@@ -0,0 +1,33 @@
+// @ts-check
+import noStrictNullable from "./no-strict-nullable.mjs";
+import pkg from "./package.json" with { type: "json" };
+
+/** @type {import("@typescript-eslint/utils/ts-eslint").FlatConfig.Plugin["rules"]} */
+const rules = {
+  "no-strict-nullable": noStrictNullable,
+};
+
+/** @type {import("@typescript-eslint/utils/ts-eslint").FlatConfig.Plugin} */
+const plugin = {
+  meta: { name: pkg.name, version: pkg.version },
+  rules,
+};
+
+/** @type {import("@typescript-eslint/utils/ts-eslint").FlatConfig.Plugin} */
+const voicevoxPlugin = {
+  configs: {
+    all: [
+      {
+        name: "@voicevox/all",
+        plugins: {
+          "@voicevox": plugin,
+        },
+        rules: {
+          "@voicevox/no-strict-nullable": "error",
+        },
+      },
+    ],
+  },
+};
+
+export default voicevoxPlugin;

eslint-plugin/no-strict-nullable.js → eslint-plugin/no-strict-nullable.mjs

@@ -1,22 +1,22 @@
 // @ts-check
-const { AST_NODE_TYPES } = require("@typescript-eslint/utils");
-const { createRule } = require("./create-rule");
+import { AST_NODE_TYPES } from "@typescript-eslint/utils";
+import { createRule } from "./create-rule.mjs";
 
 /**
- * @param {import("@typescript-eslint/types").TSESTree.BinaryExpression["left"]} node
+ * @param {import("@typescript-eslint/utils").TSESTree.Expression} node
  */
 function isNull(node) {
   return node.type === AST_NODE_TYPES.Literal && node.value == null;
 }
 
 /**
- * @param {import("@typescript-eslint/types").TSESTree.BinaryExpression["right"]} node
+ * @param {import("@typescript-eslint/utils").TSESTree.Expression} node
  */
 function isUndefined(node) {
   return node.type === AST_NODE_TYPES.Identifier && node.name === "undefined";
 }
 
-module.exports = createRule({
+const noStrictNullable = createRule({
   create(context) {
     return {
       BinaryExpression(node) {
@@ -33,7 +33,7 @@ module.exports = createRule({
           fix(fixer) {
             return fixer.replaceTextRange(
               [node.left.range[1], node.right.range[0]],
-              node.operator.slice(0, 2) + " "
+              node.operator.slice(0, 2) + " ",
             );
           },
         });
@@ -45,7 +45,6 @@ module.exports = createRule({
     type: "problem",
     docs: {
       description: "undefinedとnullと比較する際に厳密等価演算子を使わない",
-      recommended: "error",
     },
     messages: {
       report:
@@ -56,3 +55,5 @@ module.exports = createRule({
   },
   defaultOptions: [],
 });
+
+export default noStrictNullable;

eslint-plugin/package.json

@@ -2,5 +2,5 @@
   "name": "@voicevox/eslint-plugin",
   "version": "0.0.0",
   "description": "eslint plugin for voicevox",
-  "main": "index.js"
+  "main": "index.mjs"
 }