implement feedback

packages/artifact/src/internal/client.ts

@@ -2,6 +2,7 @@ import {UploadOptions} from './upload/upload-options'
 import {UploadResponse} from './upload/upload-response'
 import {uploadArtifact} from './upload/upload-artifact'
 import {warning} from '@actions/core'
+import {isGhes} from './shared/config'
 
 export interface ArtifactClient {
   /**
@@ -40,10 +41,25 @@ export class Client implements ArtifactClient {
     rootDirectory: string,
     options?: UploadOptions | undefined
   ): Promise<UploadResponse> {
+    if (isGhes()) {
+      warning(
+        `@actions/artifact v2 and upload-artifact v4 are not currently supported on GHES.`
+      )
+      return {
+        success: false
+      }
+    }
+
     try {
       return uploadArtifact(name, files, rootDirectory, options)
     } catch (error) {
-      warning(`Failed to upload artifact: ${error}`)
+      warning(
+        `Artifact upload failed with error: ${error}.
+
+Errors can be temporary, so please try again and optionally run the action with debug enabled for more information.
+
+If the error persists, please check whether Actions is running normally at [https://githubstatus.com](https://www.githubstatus.com).`
+      )
       return {
         success: false
       }