Start support to including Taskfiles

internal/taskfile/merge.go

@@ -2,10 +2,14 @@ package taskfile
 
 import (
 	"fmt"
+	"strings"
 )
 
+// NamespaceSeparator contains the character that separates namescapes
+const NamespaceSeparator = ":"
+
 // Merge merges the second Taskfile into the first
-func Merge(t1, t2 *Taskfile) error {
+func Merge(t1, t2 *Taskfile, namespaces ...string) error {
 	if t1.Version != t2.Version {
 		return fmt.Errorf(`Taskfiles versions should match. First is "%s" but second is "%s"`, t1.Version, t2.Version)
 	}
@@ -16,12 +20,19 @@ func Merge(t1, t2 *Taskfile) error {
 	if t2.Output != "" {
 		t1.Output = t2.Output
 	}
+	for k, v := range t2.Includes {
+		t1.Includes[k] = v
+	}
 	for k, v := range t2.Vars {
 		t1.Vars[k] = v
 	}
 	for k, v := range t2.Tasks {
-		t1.Tasks[k] = v
+		t1.Tasks[taskNameWithNamespace(k, namespaces...)] = v
 	}
 
 	return nil
 }
+
+func taskNameWithNamespace(taskName string, namespaces ...string) string {
+	return strings.Join(append(namespaces, taskName), NamespaceSeparator)
+}

internal/taskfile/read/taskfile.go

@@ -19,6 +19,23 @@ func Taskfile(dir string) (*taskfile.Taskfile, error) {
 		return nil, fmt.Errorf(`No Taskfile.yml found. Use "task --init" to create a new one`)
 	}
 
+	for namespace, path := range t.Includes {
+		info, err := os.Stat(path)
+		if err != nil {
+			return nil, err
+		}
+		if info.IsDir() {
+			path = filepath.Join(path, "Taskfile.yml")
+		}
+		includedTaskfile, err := readTaskfile(path)
+		if err != nil {
+			return nil, err
+		}
+		if err = taskfile.Merge(t, includedTaskfile, namespace); err != nil {
+			return nil, err
+		}
+	}
+
 	path = filepath.Join(dir, fmt.Sprintf("Taskfile_%s.yml", runtime.GOOS))
 	if _, err = os.Stat(path); err == nil {
 		osTaskfile, err := readTaskfile(path)

internal/taskfile/taskfile.go

@@ -5,6 +5,7 @@ type Taskfile struct {
 	Version    string
 	Expansions int
 	Output     string
+	Includes   map[string]string
 	Vars       Vars
 	Tasks      Tasks
 }
@@ -20,6 +21,7 @@ func (tf *Taskfile) UnmarshalYAML(unmarshal func(interface{}) error) error {
 		Version    string
 		Expansions int
 		Output     string
+		Includes   map[string]string
 		Vars       Vars
 		Tasks      Tasks
 	}
@@ -29,6 +31,7 @@ func (tf *Taskfile) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	tf.Version = taskfile.Version
 	tf.Expansions = taskfile.Expansions
 	tf.Output = taskfile.Output
+	tf.Includes = taskfile.Includes
 	tf.Vars = taskfile.Vars
 	tf.Tasks = taskfile.Tasks
 	if tf.Expansions <= 0 {