fix: failed to create database error

Author: mrinjamul

cmd/add.go

@@ -53,6 +53,10 @@ func addRun(cmd *cobra.Command, args []string) {
 		fmt.Println("Usage: tasks add [task]")
 		os.Exit(1)
 	}
+	// if db doesn't exists, create
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	tasks, err := todo.ReadTasks(todo.DatabaseFile)
 	if err != nil {
 		file := []byte("[]")

cmd/clear.go

@@ -17,6 +17,7 @@ package cmd
 
 import (
 	"fmt"
+	"os"
 
 	"github.com/mrinjamul/tasks/todo"
 	"github.com/spf13/cobra"
@@ -33,6 +34,9 @@ var clearCmd = &cobra.Command{
 // Main func
 func clearRun(cmd *cobra.Command, args []string) {
 	tasks := []todo.Task{}
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	if forceOpt {
 		err := todo.SaveTasks(todo.DatabaseFile, tasks)
 		if err != nil {

cmd/done.go

@@ -57,6 +57,9 @@ func doneRun(cmd *cobra.Command, args []string) {
 		fmt.Println("Usage: tasks done [task id]")
 		os.Exit(1)
 	}
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	tasks, _ := todo.ReadTasks(todo.DatabaseFile)
 	i, err := strconv.Atoi(args[0])
 

cmd/modify.go

@@ -36,6 +36,9 @@ var modifyCmd = &cobra.Command{
 
 // Main func
 func modifyRun(cmd *cobra.Command, args []string) {
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	if len(args) == 0 {
 		fmt.Println("Error: Too short argument")
 		fmt.Println("Usage: tasks modify [task id] [new]")

cmd/remove.go

@@ -50,6 +50,9 @@ var (
 
 // Main func
 func removeRun(cmd *cobra.Command, args []string) {
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	// remove only done tasks func
 	if doOpt {
 		response := todo.ConfirmPrompt("Do you want to remove all done task(s)?")

cmd/root.go

@@ -47,6 +47,7 @@ func Execute() {
 }
 
 func init() {
+	// todo.MigrateDB()
 	// cobra.OnInitialize(initConfig)
 
 	// Here you will define your flags and configuration settings.

cmd/undone.go

@@ -56,6 +56,9 @@ func undoneRun(cmd *cobra.Command, args []string) {
 		fmt.Println("Usage: tasks undone [task id]")
 		os.Exit(1)
 	}
+	if _, err := os.Stat(todo.DatabaseFile); os.IsNotExist(err) {
+		todo.CreateDatabase()
+	}
 	tasks, _ := todo.ReadTasks(todo.DatabaseFile)
 	i, err := strconv.Atoi(args[0])
 

snap/snapcraft.yaml

@@ -1,6 +1,6 @@
 name: tasks
 base: core18 # the base snap is the execution environment for this snap
-version: "1.1.0" # just for humans, typically '1.2+git' or '1.3.2'
+version: "1.1.1" # just for humans, typically '1.2+git' or '1.3.2'
 summary: A command-line todolist application # 79 char long summary
 description: |
   tasks will help you get more done in less time.

todo/todo.go

@@ -15,17 +15,17 @@ import (
 
 // Task : structure
 type Task struct {
-	Text     string
-	Priority int
-	position int
-	Done     bool
+	Text     string `json:"text"`
+	Priority int    `json:"prority"`
+	Position int    `json:"position"`
+	Done     bool   `json:"done"`
 }
 
 // DatabaseFile is the db file
 var DatabaseFile string = GetHomeDir() + "/.config/tasks/tasks.json"
 var (
 	Appname   = "tasks"
-	Version   = "1.0.0"
+	Version   = "dev"
 	GitCommit = "0000000000000000000000000000000000000000"
 )
 
@@ -79,7 +79,7 @@ func ReadTasks(filename string) ([]Task, error) {
 		return []Task{}, err
 	}
 	for i := range tasks {
-		tasks[i].position = i + 1
+		tasks[i].Position = i + 1
 	}
 	return tasks, nil
 }
@@ -110,7 +110,7 @@ func (i *Task) PrettyP() string {
 
 // Label : index lists
 func (i *Task) Label() string {
-	return strconv.Itoa(i.position) + "."
+	return strconv.Itoa(i.Position) + "."
 }
 
 // ByPri implements sort.Interface for []Item base on
@@ -127,7 +127,7 @@ func (s ByPri) Less(i, j int) bool {
 	if s[i].Priority != s[j].Priority {
 		return s[i].Priority < s[j].Priority
 	}
-	return s[i].position < s[j].position
+	return s[i].Position < s[j].Position
 }
 
 // PrettyDone : prettify
@@ -181,3 +181,32 @@ func RemoveDuplicate(slice []int) []int {
 	}
 	return list
 }
+
+func MigrateDB() {
+	type TaskOld struct {
+		Text     string
+		Priority int
+		position int
+		Done     bool
+	}
+	// old db retrieve
+	var old []TaskOld
+	b, _ := ioutil.ReadFile(DatabaseFile)
+	_ = json.Unmarshal(b, &old)
+	for i := range old {
+		old[i].position = i + 1
+	}
+	// new db restoration
+	var new []Task
+	for _, t := range old {
+		var tasks Task
+		tasks.Text = t.Text
+		tasks.Priority = t.Priority
+		tasks.Position = t.position
+		tasks.Done = t.Done
+		new = append(new, tasks)
+	}
+	b, _ = json.Marshal(new)
+	_ = ioutil.WriteFile(DatabaseFile, b, 0644)
+
+}