Merge pull request #13563 from Snuffleupagus/eslint-plugin-json

Add basic linting of JSON files using `eslint-plugin-json`

Author: Snuffleupagus

.eslintrc

@@ -6,13 +6,15 @@
 
   "plugins": [
     "import",
+    "json",
     "mozilla",
     "no-unsanitized",
     "sort-exports",
     "unicorn",
   ],
 
   "extends": [
+    "plugin:json/recommended",
     "plugin:prettier/recommended"
   ],
 

gulpfile.js

@@ -1742,7 +1742,7 @@ gulp.task("lint", function (done) {
   const esLintOptions = [
     "node_modules/eslint/bin/eslint",
     "--ext",
-    ".js,.jsm",
+    ".js,.jsm,.json",
     ".",
     "--report-unused-disable-directives",
   ];

package-lock.json

@@ -22,6 +22,7 @@
     "eslint-plugin-fetch-options": "^0.0.5",
     "eslint-plugin-html": "^6.1.2",
     "eslint-plugin-import": "^2.23.4",
+    "eslint-plugin-json": "^3.0.0",
     "eslint-plugin-mozilla": "^2.10.0",
     "eslint-plugin-no-unsanitized": "^3.1.5",
     "eslint-plugin-prettier": "^3.4.0",

package.json

@@ -22,5 +22,5 @@
   },
   "files": [
     "main.ts"
-  ],
+  ]
 }