build: Drop jsonlint and use ESLint for JSON linting instead

Bug: T220036
Change-Id: I2f8d1fa462f0b298067e56924f313ddaaeacf44c

Gruntfile.js

@@ -8,14 +8,16 @@
 module.exports = function ( grunt ) {
 	var conf = grunt.file.readJSON( 'extension.json' );
 	grunt.loadNpmTasks( 'grunt-banana-checker' );
-	grunt.loadNpmTasks( 'grunt-jsonlint' );
 	grunt.loadNpmTasks( 'grunt-eslint' );
 
 	grunt.initConfig( {
 		banana: conf.MessagesDirs,
 		eslint: {
+			options: {
+				extensions: [ '.js', '.json' ]
+			},
 			all: [
-				'**/*.js',
+				'**/*.js{,on}',
 				'!node_modules/**',
 				'!vendor/**'
 			]
@@ -29,6 +31,6 @@ module.exports = function ( grunt ) {
 		}
 	} );
 
-	grunt.registerTask( 'test', [ 'eslint', 'banana', 'jsonlint' ] );
+	grunt.registerTask( 'test', [ 'eslint', 'banana' ] );
 	grunt.registerTask( 'default', 'test' );
 };

package-lock.json

@@ -24,30 +24,6 @@
 				"js-tokens": "^4.0.0"
 			}
 		},
-		"@prantlf/jsonlint": {
-			"version": "6.2.1",
-			"resolved": "https://registry.npmjs.org/@prantlf/jsonlint/-/jsonlint-6.2.1.tgz",
-			"integrity": "sha512-/qPFlMyAYpebu+xS7W9XUlpBrpWyHq9ElslIxfOpfKOxWy+p++gicvxtn7f4GJQ3ikyM738/IIDf6Ngl9ta18w==",
-			"dev": true,
-			"requires": {
-				"ajv": "6.10.0",
-				"commander": "2.20.0"
-			},
-			"dependencies": {
-				"ajv": {
-					"version": "6.10.0",
-					"resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
-					"integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
-					"dev": true,
-					"requires": {
-						"fast-deep-equal": "^2.0.1",
-						"fast-json-stable-stringify": "^2.0.0",
-						"json-schema-traverse": "^0.4.1",
-						"uri-js": "^4.2.2"
-					}
-				}
-			}
-		},
 		"abbrev": {
 			"version": "1.1.1",
 			"resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -228,12 +204,6 @@
 			"integrity": "sha1-FopHAXVran9RoSzgyXv6KMCE7WM=",
 			"dev": true
 		},
-		"commander": {
-			"version": "2.20.0",
-			"resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-			"integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
-			"dev": true
-		},
 		"concat-map": {
 			"version": "0.0.1",
 			"resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -742,15 +712,6 @@
 				"eslint": "^6.0.1"
 			}
 		},
-		"grunt-jsonlint": {
-			"version": "2.0.0",
-			"resolved": "https://registry.npmjs.org/grunt-jsonlint/-/grunt-jsonlint-2.0.0.tgz",
-			"integrity": "sha512-bCodmPAoHxujSST/Pn5FdR6K1QytaZhlYW3dyU5Ut27h1usDBPnoBLWb7EoPE2EmW1UgQTrSNu/qP9tUMBSrZg==",
-			"dev": true,
-			"requires": {
-				"@prantlf/jsonlint": "6.2.1"
-			}
-		},
 		"grunt-known-options": {
 			"version": "1.1.1",
 			"resolved": "https://registry.npmjs.org/grunt-known-options/-/grunt-known-options-1.1.1.tgz",

package.json

@@ -11,7 +11,6 @@
 		"eslint-config-wikimedia": "0.15.0",
 		"grunt": "1.0.4",
 		"grunt-banana-checker": "0.8.1",
-		"grunt-eslint": "22.0.0",
-		"grunt-jsonlint": "2.0.0"
+		"grunt-eslint": "22.0.0"
 	}
 }