WhatsDiff Overview
WhatsDiff is a specialized developer tool designed to provide clear and actionable insights into dependency changes within your projects. It operates as a powerful command-line interface (CLI) that analyzes `composer.lock` and `package-lock.json` files, helping you understand precisely what has been added, removed, or updated after running `composer update` or `npm update`. This tool is essential for maintaining code stability, conducting security audits, and streamlining code reviews by making dependency changes transparent and easy to track.
How to use WhatsDiff
To get started with WhatsDiff, first install it globally on your system using Composer. Then, navigate to your project's root directory in your terminal and run the tool's commands to analyze your dependencies. The most common workflow is to run an analysis after updating your packages to see a summary of all changes.
- Install the tool globally via Composer:
composer global require whatsdiff/whatsdiff - Navigate to your PHP or JavaScript project directory.
- After running
composer updateornpm update, execute the command:whatsdiff analyse - Use other commands like
whatsdiff betweento compare changes between two commits or branches, or launch the interactive interface withwhatsdiff tuito browse changelogs.
Core Features of WhatsDiff
- Dependency Analysis: Scans `composer.lock` and `package-lock.json` files to provide a detailed summary of added, removed, and updated packages.
- Powerful CLI Commands: Offers a suite of commands including `analyse`, `between`, `check`, and `changelog` for comprehensive dependency inspection.
- Interactive Terminal UI (TUI): Features a TUI mode that allows you to interactively browse dependency changes and view release notes directly in your terminal.
- MCP Server: Includes a Model Context Protocol server designed for seamless integration with AI assistants and other development tools, enhancing automated workflows.
- Upcoming GitHub Integration: A planned GitHub App will deliver automatic dependency change reports directly within your pull requests to inform merging decisions.
Use Cases for WhatsDiff
WhatsDiff is ideal for developers and teams looking to improve their dependency management workflow. It is particularly useful for security-conscious code reviews, allowing reviewers to see exactly what has changed in third-party libraries. It also aids in debugging by helping to pinpoint issues that may have been introduced by a package update. Furthermore, it helps maintain project stability by providing a clear overview of changes before they are merged into the main codebase.
Advantages of WhatsDiff
The primary advantage of WhatsDiff is the clarity it brings to the often-complex process of managing dependencies. It saves developers significant time that would otherwise be spent manually checking changelogs and comparing versions. By integrating directly into the command line, it fits naturally into existing developer workflows. Its support for both the PHP and JavaScript ecosystems makes it a versatile tool for full-stack developers.
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