Parse global.json with JSON5

package-lock.json

@@ -17,6 +17,7 @@
         "@actions/http-client": "^2.0.1",
         "@actions/io": "^1.0.2",
         "fast-xml-parser": "^4.0.10",
+        "json5": "^2.2.3",
         "semver": "^6.3.0"
       },
       "devDependencies": {
@@ -4902,7 +4903,6 @@
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
       "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==",
-      "dev": true,
       "bin": {
         "json5": "lib/cli.js"
       },
@@ -10204,8 +10204,7 @@
     "json5": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
-      "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==",
-      "dev": true
+      "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg=="
     },
     "kleur": {
       "version": "3.0.3",

package.json

@@ -34,6 +34,7 @@
     "@actions/http-client": "^2.0.1",
     "@actions/io": "^1.0.2",
     "fast-xml-parser": "^4.0.10",
+    "json5": "^2.2.3",
     "semver": "^6.3.0"
   },
   "devDependencies": {

src/setup-dotnet.ts

@@ -7,6 +7,7 @@ import * as auth from './authutil';
 import {isCacheFeatureAvailable} from './cache-utils';
 import {restoreCache} from './cache-restore';
 import {Outputs} from './constants';
+import JSON5 from 'json5';
 
 const qualityOptions = [
   'daily',
@@ -97,9 +98,14 @@ export async function run() {
 
 function getVersionFromGlobalJson(globalJsonPath: string): string {
   let version = '';
-  const globalJson = JSON.parse(
+  const globalJson = JSON5.parse(
     // .trim() is necessary to strip BOM https://github.com/nodejs/node/issues/20649
-    fs.readFileSync(globalJsonPath, {encoding: 'utf8'}).trim()
+    fs.readFileSync(globalJsonPath, {encoding: 'utf8'}).trim(),
+    // is necessary as JSON5 supports wider variety of options for numbers: https://www.npmjs.com/package/json5#numbers
+    (key, value) => {
+      if (key === 'version' || key === 'rollForward') return String(value);
+      return value;
+    }
   );
   if (globalJson.sdk && globalJson.sdk.version) {
     version = globalJson.sdk.version;