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Release 5.0.3 - DataStar DSL, New HTML Builders, and Tooling Improvements.

· 2 min read
Leonel Correia
Leonel Correia
Paulo Carvalho
Paulo Carvalho
Ricardo Gomes
Ricardo Gomes
Bernardo Pereira
Bernardo Pereira

Significant improvements to the Kotlin DSL, HTML builder capabilities, code quality, and build infrastructure.

🚀 DataStar Kotlin DSL​

A major milestone was reached with the introduction and evolution of an idiomatic Kotlin DSL for DataStar integration:

  • Introduced DataStar extension functions and the new Signal type.
  • Added support for dataBind, dataInit, dataIndicator, dataAttr, and other DataStar attributes.
  • Expanded support with additional data-* attributes.
  • Added modifier support for DataStar attributes.
  • Refactored builders and organized DataStar tests into their own package.

These improvements make it easier to build reactive HTML declaratively while keeping the API clean and type-safe.

🏗️ HTML Builder Improvements​

The HTML DSL continues to become more flexible:

  • Added Span as a valid HtmlPage root element.
  • Added Tbody as a valid HtmlPage root element.
  • Introduced new root builder extensions for div, tr, span, and tbody.
  • Expanded test coverage for all new builder capabilities.

🧹 Refactoring and Quality​

Several improvements were made to enhance maintainability and reliability:

  • Refactored HTML extension functions.
  • Applied Spotless formatting across the project.
  • Added missing unit tests.
  • Simplified imports and cleaned up obsolete tests.
  • Improved internal builder implementations.

⚙️ Build & CI Improvements​

The development workflow has also been modernized:

  • Upgraded the project to Kotlin 2.3.10.
  • Replaced JaCoCo with Kover for code coverage.
  • Added a GitHub Actions workflow to enforce Spotless formatting checks.
  • Merged multiple feature and CI pull requests.
  • Prepared the htmlflow-parent 5.0.3 release.

📦 Overall​

This development cycle focuses on three key goals:

  • Expanding the HTML DSL with more expressive root builders.
  • Delivering first-class support for DataStar through an idiomatic Kotlin API.
  • Improving project quality with stronger testing, automated formatting, updated tooling, and modernized CI.

Together, these changes make HTMLFlow more expressive, easier to maintain, and better prepared for future releases.