How does Promkit compare to Inquirer.js for building CLI prompts?

Promkit is a Rust-native library offering similar interactive components like Inquirer.js, but with Rust's performance and safety advantages. However, it lacks the extensive npm ecosystem and is limited to Rust projects.

How to implement auto-completion with Promkit's Readline preset?

Use the Readline component from the presets; it includes auto-completion features out-of-the-box. You can customize it by providing a list of suggestions or integrating with your data source, as shown in the example code.

Is Promkit stable enough for production use given its version?

As a pre-1.0 crate, Promkit may have breaking changes, so it's best for experimental or internal tools. For critical production apps, assess the stability trade-offs and monitor release notes.

Can I customize the colors or styling of Promkit widgets?

Promkit focuses on functionality over styling; while basic customization is possible through widget APIs, extensive theming might require deeper code integration or forking, as it's not a primary feature.

How does Promkit handle terminal quirks on different platforms?

Built on crossterm, it handles cross-platform terminal issues internally, but edge cases with specific emulators might need extra configuration or testing, as noted in the cross-platform support.

What's the learning curve for using Promkit in a Rust CLI project?

It requires familiarity with Rust and terminal concepts; the modular design adds some complexity, but the presets and examples help reduce initial setup time for common use cases.

Open-Awesome

promkit

MITRustv0.16.0

A Rust toolkit for building custom interactive terminal prompts with modular components and rich presets.

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468 stars11 forks0 contributors

What is promkit?

Promkit is a Rust toolkit for building interactive command-line prompts. It provides modular components and high-level presets to create terminal interfaces like text inputs, selection lists, forms, and tree displays. It solves the problem of implementing cross-platform terminal interactions from scratch.

Target Audience

Rust developers building command-line applications that require interactive user input, such as configuration wizards, data selection tools, or administrative interfaces.

Value Proposition

Developers choose Promkit for its modular architecture, rich set of pre-built components, and cross-platform support via crossterm, which reduces boilerplate and complexity compared to manual terminal handling.

Overview

Make interactive prompt in Rust

Use Cases

Best For

Building CLI tools with interactive configuration wizards
Creating searchable selection interfaces for data filtering
Implementing password input with validation and masking
Displaying and navigating hierarchical data like file systems
Parsing and interactively exploring JSON data in the terminal
Developing forms with multiple text input fields in Rust CLIs

Not Ideal For

Projects written in languages other than Rust that require interactive CLI prompts
Applications needing only basic stdin/stdout input without advanced features like auto-completion or selection lists
Teams prioritizing stable, version 1.0+ libraries for long-term production code maintenance
Use cases demanding highly customized terminal graphics or animations beyond standard widget-based interfaces

Pros & Cons

Pros

Cross-Platform Compatibility

Uses crossterm to handle terminal rendering on both UNIX and Windows, ensuring consistent behavior without platform-specific code, as highlighted in the README's features.

Modular Architecture

Separated into core, widgets, presets, and derive crates, allowing developers to pick and extend components flexibly, reducing boilerplate for custom prompts.

Rich Preset Components

Includes ready-to-use interfaces like Readline with auto-completion, QuerySelector for searchable lists, and Tree for hierarchical data, demonstrated in the examples with GIFs.

Derive Macro Simplification

The promkit-derive crate automates trait implementations for interactive forms, making form handling more straightforward with less manual code, as noted in the modular architecture.

Cons

Pre-1.0 Stability Risks

At version 0.12.1, the API is still evolving, which could lead to breaking changes in future updates, posing a risk for production-grade applications.

Rust-Only Limitation

Exclusively for Rust projects, so it's unsuitable for teams using other languages, and the Rust ecosystem learning curve might deter some developers.

Modular Dependency Overhead

The separation into multiple crates increases dependency complexity and potential binary size compared to more integrated or lightweight alternatives.

Frequently Asked Questions

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