USE URL from API when private

Signed-off-by: Matt Clegg <[email protected]>

Author: mattclegg

pkg/github/github.go

@@ -92,11 +92,21 @@ func (c *Client) GetRelease(_ context.Context, tag string) (*Release, error) {
 		return nil, err
 	}
 
+	repository, _, err := c.Repositories.Get(context.TODO(), c.owner, c.repo)
+	if err != nil {
+		return nil, err
+	}
+
 	result := &Release{
 		Assets: []*Asset{},
 	}
+
 	for _, ass := range release.Assets {
-		asset := &Asset{*ass.Name, *ass.BrowserDownloadURL}
+		assURL := *ass.BrowserDownloadURL
+		if *repository.Private {
+			assURL = *ass.URL
+		}
+		asset := &Asset{*ass.Name, assURL}
 		result.Assets = append(result.Assets, asset)
 	}
 	return result, nil