Resolved comments

packages/cache/__tests__/saveCache.test.ts

@@ -63,17 +63,16 @@ test('save with large cache outputs should fail', async () => {
   const reserveCacheMock = jest
     .spyOn(cacheHttpClient, 'reserveCache')
     .mockImplementation(async () => {
-      const response: ITypedResponseWithErrorMessage<ReserveCacheResponse> = {
+      const response: ITypedResponse<ReserveCacheResponse> = {
         statusCode: 400,
         result: null,
-        headers: {},
-        typeKey: 'InvalidReserveCacheRequestException'
+        headers: {}
       }
       return response
     })
 
   await expect(saveCache([filePath], primaryKey)).rejects.toThrowError(
-    'Cache size of ~11264 MB (11811160064 B) is over the data cap limit, not saving cache.'
+    'Cache size of ~11264 MB (11811160064 B) is over the 10GB limit, not saving cache.'
   )
 
   const archiveFolder = '/foo/bar'
@@ -94,7 +93,7 @@ test('save with reserve cache failure should fail', async () => {
   const reserveCacheMock = jest
     .spyOn(cacheHttpClient, 'reserveCache')
     .mockImplementation(async () => {
-      const response: ITypedResponseWithErrorMessage<ReserveCacheResponse> = {
+      const response: ITypedResponse<ReserveCacheResponse> = {
         statusCode: 500,
         result: null,
         headers: {}

packages/cache/src/cache.ts

@@ -171,9 +171,17 @@ export async function saveCache(
     if (core.isDebug()) {
       await listTar(archivePath, compressionMethod)
     }
-
+    const fileSizeLimit = 10 * 1024 * 1024 * 1024 // 10GB per repo limit
     const archiveFileSize = utils.getArchiveFileSizeInBytes(archivePath)
     core.debug(`File Size: ${archiveFileSize}`)
+    // For GHES, this check will take place in ReserveCache API with enterprise file size limit
+    if (archiveFileSize > fileSizeLimit && !utils.isGhes()) {
+      throw new Error(
+        `Cache size of ~${Math.round(
+          archiveFileSize / (1024 * 1024)
+        )} MB (${archiveFileSize} B) is over the 10GB limit, not saving cache.`
+      )
+    }
 
     const cacheSize = archiveFileSize
     core.debug('Reserving Cache')
@@ -186,20 +194,15 @@ export async function saveCache(
       }
     )
 
-    if (
-      reserveCacheResponse?.statusCode === 400 &&
-      reserveCacheResponse?.typeKey === 'InvalidReserveCacheRequestException'
-    ) {
+    if (reserveCacheResponse?.result?.cacheId) {
+      cacheId = reserveCacheResponse?.result?.cacheId
+    } else if (reserveCacheResponse?.statusCode === 400) {
       throw new ReserveCacheError(
-        reserveCacheResponse?.message ??
+        reserveCacheResponse?.error?.message ??
           `Cache size of ~${Math.round(
             archiveFileSize / (1024 * 1024)
           )} MB (${archiveFileSize} B) is over the data cap limit, not saving cache.`
       )
-    }
-
-    if (reserveCacheResponse?.result?.cacheId) {
-      cacheId = reserveCacheResponse?.result?.cacheId
     } else {
       throw new ReserveCacheError(
         `Unable to reserve cache with key ${key}, another job may be creating this cache.`

packages/cache/src/internal/cacheUtils.ts

@@ -123,3 +123,10 @@ export function assertDefined<T>(name: string, value?: T): T {
 
   return value
 }
+
+export function isGhes(): boolean {
+  const ghUrl = new URL(
+      process.env["GITHUB_SERVER_URL"] || "https://github.com"
+  );
+  return ghUrl.hostname.toUpperCase() !== "GITHUB.COM";
+}

packages/cache/src/internal/contracts.d.ts

@@ -1,9 +1,9 @@
 import {CompressionMethod} from './constants'
 import {ITypedResponse} from '@actions/http-client/interfaces'
+import {HttpClientError} from '@actions/http-client'
 
 export interface ITypedResponseWithErrorMessage<T> extends ITypedResponse<T> {
-  message?: string
-  typeKey?: string
+  error?: HttpClientError
 }
 
 export interface ArtifactCacheEntry {

packages/cache/src/internal/requestUtils.ts

@@ -110,8 +110,7 @@ export async function retryTypedResponse<T>(
           statusCode: error.statusCode,
           result: null,
           headers: {},
-          message: error.message,
-          typeKey: error.result.typeKey
+          error: error
         }
       } else {
         return undefined