Merge pull request #983 from traPtitech/chore/client-update-eslint-vite

chore(client): migrate to ESLint 9 Flat Config and update Vite to v7

Author: reiroop

.github/workflows/client.yml

@@ -87,7 +87,7 @@ jobs:
     steps:
       - uses: actions/setup-node@v6
         with:
-          node-version: 18.x
+          node-version: 22.x
       - uses: actions/checkout@v6
       - uses: actions/cache@v4
         with:

client/.eslintrc.cjs

@@ -0,0 +1,38 @@
+import js from "@eslint/js";
+import pluginVue from "eslint-plugin-vue";
+import {
+  defineConfigWithVueTs,
+  vueTsConfigs
+} from "@vue/eslint-config-typescript";
+import pluginPrettierRecommended from "eslint-plugin-prettier/recommended";
+import process from "node:process";
+
+export default defineConfigWithVueTs(
+  js.configs.recommended,
+  pluginVue.configs["flat/recommended"],
+  vueTsConfigs.recommended,
+  pluginPrettierRecommended,
+  {
+    rules: {
+      "no-console": process.env.NODE_ENV === "production" ? "warn" : "off",
+      "no-debugger": process.env.NODE_ENV === "production" ? "warn" : "off",
+      "vue/multi-word-component-names": "off",
+      "vue/max-attributes-per-line": "off",
+      "vue/html-indent": "off",
+      "vue/html-closing-bracket-newline": "off",
+      "vue/singleline-html-element-content-newline": "off",
+      "vue/multiline-html-element-content-newline": "off",
+      "vue/html-self-closing": "off"
+    }
+  },
+  {
+    ignores: [
+      "dist/",
+      "node_modules/",
+      "coverage/",
+      "test-results/",
+      "playwright-report/",
+      "public/"
+    ]
+  }
+);