Pants v2: The ergonomic build system

Welcome to the Pants v2 documentation hub!

Pants v2 is a fast, scalable, user-friendly build system for growing codebases. It's currently focused on Python, with support for other languages coming soon.

Here you'll find guides to help you get started with Pants v2, comprehensive documentation on how to configure, run and customize Pants v2, and information on how to get help from the Pants community.

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Some highlights:

  • Improved formatting of ./pants help and ./pants goals.
  • .gitignore will auto-populate the global option --pants-ignore, by default, through the new global option --pants-use-gitignore.
  • The dependencies goal has a new --type=3rdparty option to list the requirement strings of your third-party dependencies.
  • The filedeps goal has a new --transitive flag to include all used files from dependencies, instead of only files used the target itself.
  • ./pants binary will now use all fields defined on a python_binary target, like zip_safe and platforms.
  • When resolving third-party Python dependencies, you can now use the repos option in [python-setup] to use custom repositories other than PyPI.
  • ./pants binary and ./pants run better support globs of targets; they will filter out all irrelevant targets for you.
  • ./pants -ldebug and -ltrace will enable logging in PEX for better troubleshooting.
  • Pytest coverage reports can be written to the console through --pytest-coverage-report=console.
  • Pytest coverage reports can be automatically opened through ./pants test --open-coverage.
  • Fixed how interpreter constraints are applied from dependencies.

See here for a detailed change log.

Updated 10 months ago


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