## Proposed Changes for `git-sync`

### Overview

The discussion revolves around enhancing the command-line interface (CLI) experience for `git-sync`. The primary focus is on structuring help commands to provide clearer usage instructions for users.

### Current Implementation Issues

1. **Usage Block Structure**  
   The current implementation using the standard library `flag` package only produces a single usage block, making it harder for users to find help for specific subcommands.  
   
2. **Error Handling**  
   All error scenarios return the same usage error, leading to confusion for users.
   
### Proposed Solutions

1. **Migration to Cobra Package**  
   - Transitioning to the **Cobra** package which offers built-in support for subcommand help.  
   - Each subcommand automatically receives its own `--help` option.
   - Provides a root command that can display usage more cleanly when invoked without parameters, improving usability.

2. **Refactor Existing Command Logic**  
   - Replace the large `usageError` block with concise messages based on the invoked command.
   - Maintain backward compatibility for existing command behavior while providing enhancements.

### Recommendations

- **Migrate to Cobra:** This approach not only smooths the user experience but also allows for easier maintenance and expansion in the future.

### Implementation Details

- The `cmd/git-sync/main.go` file will contain streamlined entry logic.
- The `cmd/git-sync/root.go` file will define a new root command that shows help when no arguments are provided.
- All command files (e.g., `sync.go`, `bootstrap.go`, etc.) will be consolidated for better organization.

### Behavioral Changes

- **Successful Exit Codes:** Invoking `git-sync` without any commands should result in a success exit status instead of failure.
- **Error Messaging:** Improved error messaging will guide users better by showing relevant command options when wrong flags or commands are invoked.

### Testing and Maintenance

- All functionalities have been verified to ensure that existing commands operate as expected after the migration.  
- Continuous integration checks to keep linting and testing in place to maintain code quality.

*Note: All relevant flags and behaviors have been preserved to ensure a seamless transition for users.*