lint: switch to using eslint directly (#827)

* this allows the use of the --cache flag for faster repeated linting (not
  supported in `vue-cli-service lint`)
  see: https://cli.vuejs.org/core-plugins/eslint.html#injected-commands
* `vue-cli-service` is deprecated, and using `eslint` directly is recommended
  for vue 3
  see: https://cli.vuejs.org/core-plugins/eslint.html
  see: https://vuejs.org/guide/scaling-up/tooling.html#linting

---------

Co-authored-by: alxndrsn <alxndrsn>
Co-authored-by: Matthew White <[email protected]>

.gitignore

@@ -30,3 +30,5 @@ npm-debug.log*
 
 /.nginx/*
 !/.nginx/.gitkeep
+
+/.eslintcache

package.json

@@ -6,8 +6,8 @@
     "dev": "nf start",
     "dev:oidc": "VUE_APP_OIDC_ENABLED=true npm run dev",
     "build": "vue-cli-service build",
-    "lint": "vue-cli-service lint --no-fix --max-warnings 0 src/ bin/ test/ *.js",
-    "lint:fix": "vue-cli-service lint --fix --max-warnings 0 src/ bin/ test/ *.js",
+    "lint": "eslint --max-warnings 0 --cache --ext .js,.vue src/ bin/ test/ *.js",
+    "lint:fix": "eslint --max-warnings 0 --fix --cache --ext .js,.vue src/ bin/ test/ *.js",
     "test": "./test/run.sh"
   },
   "volta": {
@@ -38,7 +38,6 @@
   },
   "devDependencies": {
     "@intlify/vue-i18n-loader": "~4",
-    "@vue/cli-plugin-eslint": "^5.0.8",
     "@vue/cli-service": "^5.0.8",
     "@vue/compiler-sfc": "~3",
     "@vue/eslint-config-airbnb": "^7.0.0",
@@ -62,7 +61,8 @@
     "should": "~13.2",
     "sinon": "~9",
     "util": "^0.12.5",
-    "vue-cli-plugin-i18n": "~2"
+    "vue-cli-plugin-i18n": "~2",
+    "yorkie": "^2.0.0"
   },
   "engines": {
     "node": "20",

vue.config.js

@@ -31,7 +31,6 @@ module.exports = {
       css: { url: false }
     }
   },
-  lintOnSave: false,
   pluginOptions: {
     i18n: {
       locale: 'en',