Move args and taskfile packages to root directory

taskfile/taskfile.go

@@ -0,0 +1,68 @@
+package taskfile
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// Taskfile represents a Taskfile.yml
+type Taskfile struct {
+	Version    string
+	Expansions int
+	Output     string
+	Method     string
+	Includes   IncludedTaskfiles
+	Vars       *Vars
+	Env        *Vars
+	Tasks      Tasks
+	Silent     bool
+	Dotenv     []string
+}
+
+// UnmarshalYAML implements yaml.Unmarshaler interface
+func (tf *Taskfile) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var taskfile struct {
+		Version    string
+		Expansions int
+		Output     string
+		Method     string
+		Includes   IncludedTaskfiles
+		Vars       *Vars
+		Env        *Vars
+		Tasks      Tasks
+		Silent     bool
+		Dotenv     []string
+	}
+	if err := unmarshal(&taskfile); err != nil {
+		return err
+	}
+	tf.Version = taskfile.Version
+	tf.Expansions = taskfile.Expansions
+	tf.Output = taskfile.Output
+	tf.Method = taskfile.Method
+	tf.Includes = taskfile.Includes
+	tf.Vars = taskfile.Vars
+	tf.Env = taskfile.Env
+	tf.Tasks = taskfile.Tasks
+	tf.Silent = taskfile.Silent
+	tf.Dotenv = taskfile.Dotenv
+	if tf.Expansions <= 0 {
+		tf.Expansions = 2
+	}
+	if tf.Vars == nil {
+		tf.Vars = &Vars{}
+	}
+	if tf.Env == nil {
+		tf.Env = &Vars{}
+	}
+	return nil
+}
+
+// ParsedVersion returns the version as a float64
+func (tf *Taskfile) ParsedVersion() (float64, error) {
+	v, err := strconv.ParseFloat(tf.Version, 64)
+	if err != nil {
+		return 0, fmt.Errorf(`task: Could not parse taskfile version "%s": %v`, tf.Version, err)
+	}
+	return v, nil
+}