Added ESLint validation for *.json5 files

.editorconfig

@@ -15,3 +15,6 @@ trim_trailing_whitespace = false
 
 [*.ts]
 quote_type = single
+
+[*.json5]
+ij_json_keep_blank_lines_in_code = 3

.eslintrc.json

@@ -7,7 +7,8 @@
     "eslint-plugin-jsdoc",
     "eslint-plugin-deprecation",
     "unused-imports",
-    "eslint-plugin-lodash"
+    "eslint-plugin-lodash",
+    "eslint-plugin-jsonc"
   ],
   "overrides": [
     {
@@ -224,6 +225,42 @@
         "@angular-eslint/template/no-negated-async": "off",
         "@angular-eslint/template/eqeqeq": "off"
       }
+    },
+    {
+      "files": [
+        "*.json5"
+      ],
+      "extends": [
+        "plugin:jsonc/recommended-with-jsonc"
+      ],
+      "rules": {
+        "no-irregular-whitespace": "error",
+        "no-trailing-spaces": "error",
+        "jsonc/comma-dangle": [
+          "error",
+          "always-multiline"
+        ],
+        "jsonc/indent": [
+          "error",
+          2
+        ],
+        "jsonc/key-spacing": [
+          "error",
+          {
+            "beforeColon": false,
+            "afterColon": true,
+            "mode": "strict"
+          }
+        ],
+        "jsonc/no-dupe-keys": "off",
+        "jsonc/quotes": [
+          "error",
+          "double",
+          {
+            "avoidEscape": false
+          }
+        ]
+      }
     }
   ]
 }

angular.json

@@ -266,7 +266,8 @@
           "options": {
             "lintFilePatterns": [
               "src/**/*.ts",
-              "src/**/*.html"
+              "src/**/*.html",
+              "src/**/*.json5"
             ]
           }
         }

package.json

@@ -170,6 +170,7 @@
     "eslint-plugin-deprecation": "^1.3.2",
     "eslint-plugin-import": "^2.25.4",
     "eslint-plugin-jsdoc": "^39.6.4",
+    "eslint-plugin-jsonc": "^2.6.0",
     "eslint-plugin-lodash": "^7.4.0",
     "eslint-plugin-unused-imports": "^2.0.0",
     "express-static-gzip": "^2.1.5",

yarn.lock

@@ -5137,6 +5137,15 @@ eslint-plugin-jsdoc@^39.6.4:
     semver "^7.3.8"
     spdx-expression-parse "^3.0.1"
 
+eslint-plugin-jsonc@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jsonc/-/eslint-plugin-jsonc-2.6.0.tgz#5a439ec15b4930c022bf157264a3d4f4712b982c"
+  integrity sha512-4bA9YTx58QaWalua1Q1b82zt7eZMB7i+ed8q8cKkbKP75ofOA2SXbtFyCSok7RY6jIXeCqQnKjN9If8zCgv6PA==
+  dependencies:
+    eslint-utils "^3.0.0"
+    jsonc-eslint-parser "^2.0.4"
+    natural-compare "^1.4.0"
+
 eslint-plugin-lodash@^7.4.0:
   version "7.4.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-lodash/-/eslint-plugin-lodash-7.4.0.tgz#14a761547f126c92ff56789662a20a44f8bb6290"
@@ -5239,7 +5248,7 @@ esm@^3.2.25:
   resolved "https://registry.yarnpkg.com/esm/-/esm-3.2.25.tgz#342c18c29d56157688ba5ce31f8431fbb795cc10"
   integrity sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==
 
-espree@^9.4.0:
+espree@^9.0.0, espree@^9.4.0:
   version "9.4.1"
   resolved "https://registry.yarnpkg.com/espree/-/espree-9.4.1.tgz#51d6092615567a2c2cff7833445e37c28c0065bd"
   integrity sha512-XwctdmTO6SIvCzd9810yyNzIrOrqNYV9Koizx4C/mRhf9uq0o4yHoCEU/670pOxOL/MSraektvSAji79kX90Vg==
@@ -7020,6 +7029,16 @@ json5@^2.1.2, json5@^2.2.1, json5@^2.2.2:
   resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.2.tgz#64471c5bdcc564c18f7c1d4df2e2297f2457c5ab"
   integrity sha512-46Tk9JiOL2z7ytNQWFLpj99RZkVgeHf87yGQKsIkaPz1qSH9UczKH1rO7K3wgRselo0tYMUNfecYpm/p1vC7tQ==
 
+jsonc-eslint-parser@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/jsonc-eslint-parser/-/jsonc-eslint-parser-2.1.0.tgz#4c126b530aa583d85308d0b3041ff81ce402bbb2"
+  integrity sha512-qCRJWlbP2v6HbmKW7R3lFbeiVWHo+oMJ0j+MizwvauqnCV/EvtAeEeuCgoc/ErtsuoKgYB8U4Ih8AxJbXoE6/g==
+  dependencies:
+    acorn "^8.5.0"
+    eslint-visitor-keys "^3.0.0"
+    espree "^9.0.0"
+    semver "^7.3.5"
+
 jsonc-parser@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/jsonc-parser/-/jsonc-parser-3.0.0.tgz#abdd785701c7e7eaca8a9ec8cf070ca51a745a22"