Allow users to specify extra json action data

Test: m json-module-graph and validate output
Change-Id: I7ff7c2c98e49f515efb19845aa3a860e14360a32

context.go

@@ -2284,6 +2284,18 @@ type JSONDataSupplier interface {
 	AddJSONData(d *map[string]interface{})
 }
 
+// JSONAction contains the action-related info we expose to json module graph
+type JSONAction struct {
+	Inputs  []string
+	Outputs []string
+}
+
+// JSONActionSupplier allows JSON representation of additional actions that are not registered in
+// Ninja
+type JSONActionSupplier interface {
+	JSONActions() []JSONAction
+}
+
 func jsonModuleFromModuleInfo(m *moduleInfo) *JsonModule {
 	result := &JsonModule{
 		jsonModuleName: *jsonModuleNameFromModuleInfo(m),
@@ -2313,17 +2325,27 @@ func jsonModuleWithActionsFromModuleInfo(m *moduleInfo) *JsonModule {
 		Blueprint: m.relBlueprintsFile,
 		Module:    make(map[string]interface{}),
 	}
-	var actions []map[string]interface{}
+	var actions []JSONAction
 	for _, bDef := range m.actionDefs.buildDefs {
-		actions = append(actions, map[string]interface{}{
-			"Inputs": append(
+		actions = append(actions, JSONAction{
+			Inputs: append(
 				getNinjaStringsWithNilPkgNames(bDef.Inputs),
 				getNinjaStringsWithNilPkgNames(bDef.Implicits)...),
-			"Outputs": append(
+			Outputs: append(
 				getNinjaStringsWithNilPkgNames(bDef.Outputs),
 				getNinjaStringsWithNilPkgNames(bDef.ImplicitOutputs)...),
 		})
 	}
+
+	if j, ok := m.logicModule.(JSONActionSupplier); ok {
+		actions = append(actions, j.JSONActions()...)
+	}
+	for _, p := range m.providers {
+		if j, ok := p.(JSONActionSupplier); ok {
+			actions = append(actions, j.JSONActions()...)
+		}
+	}
+
 	result.Module["Actions"] = actions
 	return result
 }