Added version validation and updated tests

internal/taskfile/included_taskfile.go

@@ -11,6 +11,7 @@ var (
 type IncludedTaskfile struct {
 	Taskfile       string
 	Dir            string
+	AdvancedImport bool
 }
 
 // IncludedTaskfiles represents information about included tasksfiles
@@ -31,6 +32,7 @@ func (it *IncludedTaskfile) UnmarshalYAML(unmarshal func(interface{}) error) err
 	if err := unmarshal(&includedTaskfile); err == nil {
 		it.Dir = includedTaskfile.Dir
 		it.Taskfile = includedTaskfile.Taskfile
+		it.AdvancedImport = true
 		return nil
 	}
 

internal/taskfile/read/taskfile.go

@@ -45,11 +45,13 @@ func Taskfile(dir string, entrypoint string) (*taskfile.Taskfile, error) {
 			return nil, ErrIncludedTaskfilesCantHaveIncludes
 		}
 
+		if includedTask.AdvancedImport {
 			for _, task := range includedTaskfile.Tasks {
 				if !filepath.IsAbs(task.Dir) {
 					task.Dir = filepath.Join(includedTask.Dir, task.Dir)
 				}
 			}
+		}
 
 		if err = taskfile.Merge(t, includedTaskfile, namespace); err != nil {
 			return nil, err

task.go

@@ -207,6 +207,14 @@ func (e *Executor) Setup() error {
 		}
 	}
 
+	if v < 3 {
+		for _, taskfile := range e.Taskfile.Includes {
+			if taskfile.AdvancedImport {
+				return errors.New(`task: Import with additional parameters is only available starting on Taskfile version v3`)
+			}
+		}
+	}
+
 	e.taskCallCount = make(map[string]*int32, len(e.Taskfile.Tasks))
 	e.mkdirMutexMap = make(map[string]*sync.Mutex, len(e.Taskfile.Tasks))
 	for k := range e.Taskfile.Tasks {

task_test.go

@@ -551,6 +551,21 @@ func TestIncludes(t *testing.T) {
 	tt.Run(t)
 }
 
+func TestIncorrectVersionIncludes(t *testing.T) {
+	const dir = "testdata/incorrect_includes"
+	expectedError := "task: Import with additional parameters is only available starting on Taskfile version v3"
+
+	var buff bytes.Buffer
+	e := task.Executor{
+		Dir:    dir,
+		Stdout: &buff,
+		Stderr: &buff,
+		Silent: true,
+	}
+
+	assert.EqualError(t, e.Setup(), expectedError)
+}
+
 func TestIncludesEmptyMain(t *testing.T) {
 	tt := fileContentTest{
 		Dir:       "testdata/includes_empty",

testdata/incorrect_includes/Taskfile.yml

@@ -0,0 +1,10 @@
+version: '2.6'
+
+includes:
+  included:
+    taskfile:  ./included
+
+tasks:
+  default:
+    cmds:
+      - task: gen

testdata/incorrect_includes/included/Taskfile.yml

@@ -0,0 +1,6 @@
+version: '2.6'
+
+tasks:
+  gen:
+    cmds:
+      - echo incorrect includes test