Fix v1 cache service to only check ACTIONS_CACHE_URL

Co-authored-by: Link- <568794+Link-@users.noreply.github.com>

packages/cache/__tests__/cache.test.ts

@@ -22,9 +22,9 @@ describe('isFeatureAvailable', () => {
     expect(cache.isFeatureAvailable()).toBe(true)
   })
 
-  test('returns true for cache service v1 when ACTIONS_RESULTS_URL is set', () => {
+  test('returns false for cache service v1 when only ACTIONS_RESULTS_URL is set', () => {
     process.env['ACTIONS_RESULTS_URL'] = 'http://results.com'
-    expect(cache.isFeatureAvailable()).toBe(true)
+    expect(cache.isFeatureAvailable()).toBe(false)
   })
 
   test('returns true for cache service v1 when both URLs are set', () => {
@@ -61,9 +61,9 @@ describe('isFeatureAvailable', () => {
     expect(cache.isFeatureAvailable()).toBe(true)
   })
 
-  test('returns true for GHES with ACTIONS_RESULTS_URL', () => {
+  test('returns false for GHES with only ACTIONS_RESULTS_URL', () => {
     process.env['GITHUB_SERVER_URL'] = 'https://my-enterprise.github.com'
     process.env['ACTIONS_RESULTS_URL'] = 'http://results.com'
-    expect(cache.isFeatureAvailable()).toBe(true)
+    expect(cache.isFeatureAvailable()).toBe(false)
   })
 })

packages/cache/src/cache.ts

@@ -67,10 +67,8 @@ export function isFeatureAvailable(): boolean {
       return !!process.env['ACTIONS_RESULTS_URL']
     case 'v1':
     default:
-      // For v1, we need either ACTIONS_CACHE_URL or ACTIONS_RESULTS_URL
-      return !!(
-        process.env['ACTIONS_CACHE_URL'] || process.env['ACTIONS_RESULTS_URL']
-      )
+      // For v1, we only need ACTIONS_CACHE_URL
+      return !!process.env['ACTIONS_CACHE_URL']
   }
 }