ref(helm): fix chart url in index file

pkg/repo/repo.go

@@ -135,7 +135,9 @@ func (r *ChartRepository) Index() error {
 			created = time.Now().UTC().String()
 		}
 
-		entry := &ChartRef{Chartfile: *chartfile, Name: chartfile.Name, URL: r.URL, Created: created, Digest: hash, Removed: false}
+		url := filepath.Join(r.URL, key+".tgz")
+
+		entry := &ChartRef{Chartfile: *chartfile, Name: chartfile.Name, URL: url, Created: created, Digest: hash, Removed: false}
 
 		r.IndexFile.Entries[key] = entry
 

pkg/repo/repo_test.go

@@ -90,6 +90,10 @@ func TestIndex(t *testing.T) {
 		if v.Created != created {
 			t.Errorf("Expected Created timestamp to be %s, but got %s for chart %s", created, v.Created, chart)
 		}
+		expectedURL := filepath.Join(cr.URL, chart+".tgz")
+		if v.URL != expectedURL {
+			t.Errorf("Expected url in entry to be %s but got %s for chart: %s", expectedURL, v.URL, chart)
+		}
 	}
 }