add eslint-plugin-vue-i18n

.eslintrc.js

@@ -10,14 +10,25 @@ module.exports = {
   extends: [
     'plugin:@typescript-eslint/recommended',
     'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@intlify/vue-i18n/recommended',
     'plugin:prettier/recommended',
     'prettier'
   ],
   plugins: ['@typescript-eslint'],
-  parser: '@typescript-eslint/parser',
   parserOptions: {
+    parser: '@typescript-eslint/parser',
     sourceType: 'module'
   },
+  overrides: [
+    {
+      files: ['*.json', '*.json5'],
+      extends: ['plugin:@intlify/vue-i18n/base']
+    },
+    {
+      files: ['*.yaml', '*.yml'],
+      extends: ['plugin:@intlify/vue-i18n/base']
+    }
+  ],
   rules: {
     'object-curly-spacing': 'off',
     '@typescript-eslint/explicit-function-return-type': 'off',
@@ -26,6 +37,19 @@ module.exports = {
     '@typescript-eslint/explicit-module-boundary-types': 'off',
     '@typescript-eslint/ban-ts-comment': 'off',
     '@typescript-eslint/no-non-null-assertion': 'off',
-    '@typescript-eslint/triple-slash-reference': 'off'
+    '@typescript-eslint/triple-slash-reference': 'off',
+    '@intlify/vue-i18n/no-dynamic-keys': 'error',
+    '@intlify/vue-i18n/no-unused-keys': [
+      'error',
+      {
+        extensions: ['.ts']
+      }
+    ]
+  },
+  settings: {
+    'vue-i18n': {
+      localeDir: './locales/*.json',
+      messageSyntaxVersion: '^9.0.0'
+    }
   }
 }

package.json

@@ -44,6 +44,7 @@
     "yargs": "^17.2.0"
   },
   "devDependencies": {
+    "@intlify/eslint-plugin-vue-i18n": "^0.15.0",
     "@kazupon/lerna-changelog": "^4.3.0",
     "@microsoft/api-extractor": "^7.18.2",
     "@secretlint/secretlint-rule-preset-recommend": "^3.3.0",

src/cli.ts

@@ -9,7 +9,7 @@ import { compile, annotate, format } from './commands'
   await initI18n()
   yargs(hideBin(process.argv))
     .scriptName('intlify')
-    .usage(t('Usage: $0 <command> [options]'))
+    .usage(t('Usage: $0 <command> [options]')) // eslint-disable-line @intlify/vue-i18n/no-missing-keys
     .command(compile())
     .command(annotate())
     .command(format())

src/commands/annotate.ts

@@ -173,7 +173,7 @@ export default function defineCommand() {
           e.erorrs.forEach(err => console.error(chalk.red(`  ${err.message}`)))
         } else if (e instanceof SFCAnnotateError) {
           console.error(
-            chalk.red(`${e.filepath}: ${t(e.message as any)}`) // eslint-disable-line @typescript-eslint/no-explicit-any
+            chalk.red(`${e.filepath}: ${t(e.message as any)}`) // eslint-disable-line @typescript-eslint/no-explicit-any, @intlify/vue-i18n/no-dynamic-keys
           )
         } else {
           console.error(chalk.red((e as Error).message))

src/commands/format.ts

@@ -95,7 +95,7 @@ export default function defineCommand() {
         errorCounter++
         if (e instanceof FormatLangNotFoundError) {
           console.error(
-            chalk.red(`${e.filepath}: ${t(e.message as any)}`) // eslint-disable-line @typescript-eslint/no-explicit-any
+            chalk.red(`${e.filepath}: ${t(e.message as any)}`) // eslint-disable-line @typescript-eslint/no-explicit-any, @intlify/vue-i18n/no-dynamic-keys
           )
         } else if (isSFCParserError(e)) {
           console.error(chalk.red(`${e.message} at ${e.filepath}`))