# Software Requirements Specification (SRS)
**Project:** Kite – A Rust CLI Utility Framework
**Author:** Jeet Karena
**Version:** 0.1.0
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## 1. Introduction
### 1.1 Purpose
The purpose of Kite is to provide developers with a **secure, dependency-free Rust library** for building CLI applications. It should eliminate reliance on third-party crates like `clap`, `colored`, or `indicatif`, thus minimizing supply-chain risks.
### 1.2 Scope
Kite will:
- Provide a **lightweight framework** for CLI tool development
- Include argument parsing, colors, logging, progress bars, and prompts
- Work cross-platform (Linux, macOS, Windows)
- Be written entirely in Rust’s standard library
- Expose a simple and intuitive API for developers
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## 2. Functional Requirements
### 2.1 Core Features
1. **Argument Parser (`kite::args`)**
- Support positional args, flags (`-v`), long options (`--verbose`), subcommands.
- Provide parsed results in a structured format.
2. **Styling & Colors (`kite::style`)**
- Support ANSI color codes (Red, Green, Blue, Yellow, etc.).
- Support styles (bold, underline).
- Auto-detect terminal support; fallback gracefully on unsupported platforms.
3. **Progress Bar & Spinner (`kite::progress`)**
- Render progress bars using carriage return `\r`.
- Provide spinner animation with customizable speed.
- Support terminal width detection for dynamic resizing.
4. **Prompting (`kite::prompt`)**
- Yes/No confirmation prompts.
- Read line input.
- Hidden password input (disable echo).
5. **Logging (`kite::log`)**
- Support log levels (error, warn, info, debug).
- Timestamped output to stderr.
- Optional verbosity control.
6. **Terminal Utilities (`kite::term`)**
- Clear screen, move cursor, print at position.
- Detect terminal width & height (when possible).
- Fallback defaults if detection fails.
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## 3. Non-Functional Requirements
- **Security**: No external dependencies; all code auditable.
- **Portability**: Work on Linux, macOS, Windows.
- **Performance**: Minimal overhead; suitable for real-time CLI interaction.
- **Usability**: Simple, ergonomic API.
- **Maintainability**: Clear modular structure.
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## 4. System Design
### 4.1 Architecture
- `src/args.rs` – argument parser
- `src/style.rs` – colors & text styling
- `src/progress.rs` – progress bar & spinner
- `src/prompt.rs` – input handling
- `src/log.rs` – logging system
- `src/term.rs` – terminal utilities
### 4.2 Dependencies
- None. (Only `std`.)
### 4.3 Interfaces
- Public API exposed via `lib.rs` re-exports.
- Internal modules separated logically.
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## 5. Security Considerations
- No unsafe Rust unless strictly necessary.
- No dynamic code loading.
- No auto-update mechanism (users handle updates manually).
- Developers encouraged to sign release binaries and distribute checksums.
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## 6. Future Enhancements
- Cross-platform clipboard support.
- TUI (text-based UI) primitives (menus, tables).
- Built-in test harness for CLI apps.
- Plugin system with signed external binaries.