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Version: 2.1 (deprecated)

Welcome to Pants!


What is Pants?​

Pants is a scalable build system for monorepos: codebases containing multiple projects—often using multiple programming languages and frameworks—in a single unified code repository.

Monorepos have many advantages, but they require appropriate tooling in order to scale. Pants provides this tooling.

What are the main features of Pants?​

Pants is designed for fast, consistent builds. Some noteworthy features include:

  • Dependency modeling with minimal boilerplate.
  • Fine-grained invalidation.
  • Shared result caching.
  • Concurrent execution.
  • Remote execution.
  • Unified interface for multiple tools and languages.
  • Extensibility and customizability via a plugin API.

Which languages and frameworks does Pants support?​

Pants currently works with Python code, but support for other languages, including Javascript/Node, Java, Scala and more, is coming soon.

How does Pants work?​

See here for details about the Pants engine.

Who develops Pants?​

Pants is an open-source software project, developed at github.com/pantsbuild/pants. Pants is released under the Apache License 2.0.

Pants 1.x vs. 2.x

This documentation is for Pants 2.0, which is a ground-up redesign of Pants based on lessons from the past 10 years of development. See here for Pants v1 documentation, which includes support for Node, Go, Java, and Scala.