fix(influx): select an active config when deleting the active config

cmd/influx/config/config.go

@@ -221,6 +221,14 @@ func (svc localConfigsSVC) DeleteConfig(name string) (Config, error) {
 	}
 	delete(cfgs, name)
 
+	if p.Active && len(cfgs) > 0 {
+		for name, cfg := range cfgs {
+			cfg.Active = true
+			cfgs[name] = cfg
+			break
+		}
+	}
+
 	return p, svc.writeConfigs(cfgs)
 }
 

cmd/influx/config/config_test.go

@@ -770,6 +770,7 @@ func TestConfigDelete(t *testing.T) {
 			},
 			stored: Configs{
 				"a2": {
+					Active: true,
 					Name:   "a2",
 					Host:   "host2",
 					Org:    "org2",
@@ -779,6 +780,7 @@ func TestConfigDelete(t *testing.T) {
 		},
 	}
 	for _, c := range cases {
+		fn := func(t *testing.T) {
 			svc, store := newBufferSVC()
 			_ = store.writeConfigs(c.exists)
 			result, err := svc.DeleteConfig(c.target)
@@ -796,6 +798,8 @@ func TestConfigDelete(t *testing.T) {
 				}
 			}
 		}
+		t.Run(c.name, fn)
+	}
 }
 
 func newBufferSVC() (ConfigsService, *bytesStore) {