wip

taskfile/ast/precondition.go

@@ -2,6 +2,8 @@ package ast
 
 import (
 	"fmt"
+	"github.com/go-task/task/v3/internal/deepcopy"
+	"sync"
 
 	"gopkg.in/yaml.v3"
 
@@ -9,9 +11,27 @@ import (
 )
 
 // Precondition represents a precondition necessary for a task to run
-type Precondition struct {
+type (
+	Preconditions struct {
+		preconditions []*Precondition
+		mutex         sync.RWMutex
+	}
+
+	Precondition struct {
 		Sh  string
 		Msg string
+	}
+)
+
+func (p *Preconditions) DeepCopy() *Preconditions {
+	if p == nil {
+		return nil
+	}
+	defer p.mutex.RUnlock()
+	p.mutex.RLock()
+	return &Preconditions{
+		preconditions: deepcopy.Slice(p.preconditions),
+	}
 }
 
 func (p *Precondition) DeepCopy() *Precondition {
@@ -24,6 +44,12 @@ func (p *Precondition) DeepCopy() *Precondition {
 	}
 }
 
+func NewPreconditions() *Preconditions {
+	return &Preconditions{
+		preconditions: make([]*Precondition, 0),
+	}
+}
+
 // UnmarshalYAML implements yaml.Unmarshaler interface.
 func (p *Precondition) UnmarshalYAML(node *yaml.Node) error {
 	switch node.Kind {
@@ -55,3 +81,16 @@ func (p *Precondition) UnmarshalYAML(node *yaml.Node) error {
 
 	return errors.NewTaskfileDecodeError(nil, node).WithTypeMessage("precondition")
 }
+
+func (p *Preconditions) UnmarshalYAML(node *yaml.Node) error {
+
+	if p == nil || p.preconditions == nil {
+		*p = *NewPreconditions()
+	}
+
+	if err := node.Decode(&p.preconditions); err != nil {
+		return errors.NewTaskfileDecodeError(err, node).WithTypeMessage("precondition")
+	}
+
+	return nil
+}

taskfile/ast/taskfile.go

@@ -29,6 +29,7 @@ type Taskfile struct {
 	Shopt         []string
 	Vars          *Vars
 	Env           *Vars
+	Preconditions *Preconditions
 	Tasks         *Tasks
 	Silent        bool
 	Dotenv        []string
@@ -72,6 +73,7 @@ func (tf *Taskfile) UnmarshalYAML(node *yaml.Node) error {
 			Output        Output
 			Method        string
 			Includes      *Includes
+			Preconditions *Preconditions
 			Set           []string
 			Shopt         []string
 			Vars          *Vars
@@ -110,6 +112,10 @@ func (tf *Taskfile) UnmarshalYAML(node *yaml.Node) error {
 		if tf.Tasks == nil {
 			tf.Tasks = NewTasks()
 		}
+
+		if tf.Preconditions == nil {
+			tf.Preconditions = NewPreconditions()
+		}
 		return nil
 	}