terraform: State.IsRemote

terraform/state.go

@@ -125,6 +125,22 @@ func (s *State) ModuleOrphans(path []string, c *config.Config) [][]string {
 	return orphans
 }
 
+// IsRemote returns true if State represents a state that exists and is
+// remote.
+func (s *State) IsRemote() bool {
+	if s == nil {
+		return false
+	}
+	if s.Remote == nil {
+		return false
+	}
+	if s.Remote.Type == "" {
+		return false
+	}
+
+	return true
+}
+
 // RootModule returns the ModuleState for the root module
 func (s *State) RootModule() *ModuleState {
 	root := s.ModuleByPath(rootModulePath)

terraform/state_test.go

@@ -312,6 +312,34 @@ func TestInstanceStateEqual(t *testing.T) {
 	}
 }
 
+func TestStateIsRemote(t *testing.T) {
+	cases := []struct {
+		In     *State
+		Result bool
+	}{
+		{
+			nil,
+			false,
+		},
+		{
+			&State{},
+			false,
+		},
+		{
+			&State{
+				Remote: &RemoteState{Type: "foo"},
+			},
+			true,
+		},
+	}
+
+	for i, tc := range cases {
+		if tc.In.IsRemote() != tc.Result {
+			t.Fatalf("bad %d %#v:\n\n%#v", i, tc.Result, tc.In)
+		}
+	}
+}
+
 func TestInstanceState_MergeDiff(t *testing.T) {
 	is := InstanceState{
 		ID: "foo",