terraform: destroy module plan

terraform/context_test.go

@@ -875,8 +875,7 @@ func TestContext2Plan_destroy(t *testing.T) {
 	}
 }
 
-/*
+func TestContext2Plan_moduleDestroy(t *testing.T) {
-func TestContextPlan_moduleDestroy(t *testing.T) {
 	m := testModule(t, "plan-module-destroy")
 	p := testProvider("aws")
 	p.DiffFn = testDiffFn
@@ -906,7 +905,7 @@ func TestContextPlan_moduleDestroy(t *testing.T) {
 			},
 		},
 	}
-	ctx := testContext(t, &ContextOpts{
+	ctx := testContext2(t, &ContextOpts{
 		Module: m,
 		Providers: map[string]ResourceProviderFactory{
 			"aws": testProviderFuncFixed(p),
@@ -926,6 +925,7 @@ func TestContextPlan_moduleDestroy(t *testing.T) {
 	}
 }
 
+/*
 func TestContextPlan_moduleDestroyMultivar(t *testing.T) {
 	m := testModule(t, "plan-module-destroy-multivar")
 	p := testProvider("aws")

terraform/eval_diff.go

@@ -151,6 +151,39 @@ func (n *EvalDiffDestroy) Type() EvalType {
 	return EvalTypeNull
 }
 
+// EvalDiffDestroyModule is an EvalNode implementation that writes the diff to
+// the full diff.
+type EvalDiffDestroyModule struct {
+	Path []string
+}
+
+func (n *EvalDiffDestroyModule) Args() ([]EvalNode, []EvalType) {
+	return nil, nil
+}
+
+// TODO: test
+func (n *EvalDiffDestroyModule) Eval(
+	ctx EvalContext, args []interface{}) (interface{}, error) {
+	diff, lock := ctx.Diff()
+
+	// Acquire the lock so that we can do this safely concurrently
+	lock.Lock()
+	defer lock.Unlock()
+
+	// Write the diff
+	modDiff := diff.ModuleByPath(n.Path)
+	if modDiff == nil {
+		modDiff = diff.AddModule(n.Path)
+	}
+	modDiff.Destroy = true
+
+	return nil, nil
+}
+
+func (n *EvalDiffDestroyModule) Type() EvalType {
+	return EvalTypeNull
+}
+
 // EvalWriteDiff is an EvalNode implementation that writes the diff to
 // the full diff.
 type EvalWriteDiff struct {

terraform/graph_config_node.go

@@ -306,9 +306,22 @@ func (n *graphNodeModuleExpanded) Name() string {
 
 // GraphNodeEvalable impl.
 func (n *graphNodeModuleExpanded) EvalTree() EvalNode {
-	return &EvalVariableBlock{
+	return &EvalSequence{
-		Config:    &EvalInterpolate{Config: n.InputConfig},
+		Nodes: []EvalNode{
-		Variables: n.Variables,
+			&EvalVariableBlock{
+				Config:    &EvalInterpolate{Config: n.InputConfig},
+				Variables: n.Variables,
+			},
+
+			&EvalOpFilter{
+				Ops: []walkOperation{walkPlanDestroy},
+				Node: &EvalSequence{
+					Nodes: []EvalNode{
+						&EvalDiffDestroyModule{Path: n.Graph.Path},
+					},
+				},
+			},
+		},
 	}
 }