What is this?

Basic task manager command-line application using Cobra to learn more about CLI development in Go lang

Requirements

1. commands

• add: Add a new task.
• complete: Mark a task as completed.
• list: List all tasks.
• remove: Remove a task.

2. flags and argument

• add command should take a task description as an argument.
• complete and remove commands should take the task index as an argument.
• You can use flags to provide additional options, such as a due date or priority level.

3. Task storage

• Store tasks in-memory or use a simple JSON file
• possibility to handle configuration and set the storage location.

4. User friendly?

• Use different colors for different types of output (success, error, etc.).
• Provide clear and user-friendly output for each command.

5. Error handling

• Implement proper error handling for cases like invalid input, out-of-bounds task index

6. Testing

• Write unit tests for the core functionality of your task manager