Go Todo CLI App

A simple command-line Todo list application written in Go. This CLI app allows you to manage your tasks by adding, completing, deleting, and listing todos. The todos are stored in a local .todo.json file.

Features

• Add a new task: Add a new todo to the list.
• Mark a task as completed: Mark a specific todo by its index as completed.
• Delete a task: Delete a todo by its index.
• List all tasks: View all your tasks, including their statuses.

Prerequisites

• Go 1.18 or higher installed on your system.

Installation

1. Clone the repository to your local machine:

   git clone https://github.com/yourusername/go-todo-cli.git
   cd go-todo-cli

2. Build the app:

   go build -o todo-cli

   This will generate an executable file named todo-cli.

Usage

Adding a Task

To add a new todo task, use the --add flag followed by the task description. If you don't provide the task description as a flag argument, you will be prompted to enter it.

./todo-cli --add "Buy groceries"

Completing a Task

To mark a todo as completed, use the --complete flag followed by the index of the task you want to complete. For example, to complete the first task:

./todo-cli --complete 1

Deleting a Task

To delete a task, use the --del flag followed by the index of the task to delete:

./todo-cli --del 2

Listing All Tasks

To view all tasks and their statuses, use the --list flag:

./todo-cli --list

File Storage

Todos are saved in the .todo.json file in the same directory. Each task includes a description and a status (completed or not).

Error Handling

• If a task description is empty when adding a new task, an error will be thrown.
• If the index provided for completing or deleting a task is invalid, an error will be thrown.

Example Workflow

1. Add a new task:

   ./todo-cli --add "Complete Go project"

2. List tasks:

   ./todo-cli --list

3. Complete the task:

   ./todo-cli --complete 1

4. List tasks again:

   ./todo-cli --list

5. Delete a task:

   ./todo-cli --del 1