add(taskwarrior): update tasks in taskwarrior

The implementation updates the tasks in taskwarrior and/or creates new
tasks. WIP for #3.

cmd/gitw/main.go

@@ -79,6 +79,16 @@ func main() {
 	}
 	fmt.Println("---")
 
+	// NOTE: this can be used to add / modify tasks
+	// var update_tasks []taskwarrior.Task
+	// task := taskwarrior.NewTask(
+	// 	"This is a test task from gitwarrior",
+	// 	"gitwarrior",
+	// 	"issue",
+	// )
+	// update_tasks = append(update_tasks, task)
+	// taskwarrior.UpdateTasks(update_tasks)
+
 	// necessary configurations (see config file gitw.json)
 	// - access code for gitea
 	// - configuration for taskwarrior settings?

internal/taskwarrior/task.go

@@ -10,23 +10,31 @@ import (
 /// mentioned in the Status field
 
 type Task struct {
-	Id          uint
-	Project     string
-	Tags        []string
-	Description string
-	Annotations []Annotation
-	Status      string
-	Due         string
-	Entry       string
-	Modified    string
-	End         string
-	Uuid        string
-	Urgency     float32
+	Id          uint         `json:"id,omitempty"`
+	Project     string       `json:"project,omitempty"`
+	Tags        []string     `json:"tags,omitempty"`
+	Description string       `json:"description,omitempty"`
+	Annotations []Annotation `json:"annotations,omitempty"`
+	Status      string       `json:"status,omitempty"`
+	Due         string       `json:"due,omitempty"`
+	Entry       string       `json:"entry,omitempty"`
+	Modified    string       `json:"modified,omitempty"`
+	End         string       `json:"end,omitempty"`
+	Uuid        string       `json:"uuid,omitempty"`
+	Urgency     float32      `json:"urgency,omitempty"`
 }
 
 type Annotation struct {
-	Description string
-	Entry       string
+	Description string `json:"description,omitempty"`
+	Entry       string `json:"entry,omitempty"`
+}
+
+func NewTask(description string, project string, tags ...string) Task {
+	return Task{
+		Project:     project,
+		Tags:        tags,
+		Description: description,
+	}
 }
 
 func GetTasks(filter Filter) ([]Task, error) {
@@ -44,3 +52,18 @@ func GetTasks(filter Filter) ([]Task, error) {
 	}
 	return tasks, nil
 }
+
+func UpdateTasks(tasks []Task) error {
+	cmd := exec.Command("task", "import")
+	value, err := json.Marshal(tasks)
+	if err != nil {
+		return err
+	}
+	var buffer bytes.Buffer
+	_, err = buffer.Write(value)
+	if err != nil {
+		return err
+	}
+	cmd.Stdin = &buffer
+	return cmd.Run()
+}