poetry-homebrew-formula — Poetry Plugin for Homebrew Formulae

A plugin for Poetry that renders the dependencies of a given python project into a Homebrew formula.

This project was inspired by poetry-brew that aims to solve the same problem but with a different approach.

Setup

• If you installed poetry via pipx (preferred):

  pipx inject poetry poetry-homebrew-formula

• If you installed poetry a different way, most likely this will work, too:

  poetry self add poetry-homebrew-formula

  Please consult the poetry docs on using plugins for more details.

Usage

Run poetry homebrew-formula --help for details on how to use it:

Custom templates

The plugin allows for the use of custom Jinja-based templates to be used when rendering the formula. This is particularly useful for software that requires more a elaborate "packaging recipe" than what the default template can offer. In custom templates, some common components are offered as "shortcode" template tags:

• {{ PACKAGE_URL }}: will be replaced with the project own source URL and checksum.
• {{ RESOURCES }}: will be replaced with the project's dependencies.

With that in mind, the following uses become possible:

Prepopulated formula

If you want to define the entire formula yourself and populate only the dynamic components via poetry-homebrew-formula, you may use both shortcodes like so:

class MySoftwareProject < Formula
  include Language::Python::Virtualenv

  desc "This is a software project that has its formula prepopulated with most details"
  homepage "https://mysoftwareproject.invalid"
  license "MIT

{{ PACKAGE_URL }}

  depends_on "python3"
  depends_on "rust" => >:build

{{ RESOURCES }}

  def install
    virtualenv_create(libexec, "python3")
    virtualenv_install_with_resources

    doing_something_here
    generate_completions_from_executable(bin/"my-software", shells: [:bash, :zsh, :fish], shell_parameter_format: :click)
  end

  test do
    false
  end
end

Rendered example formula

class MySoftwareProject < Formula
  include Language::Python::Virtualenv

  desc "This is a software project that has its formula prepopulated with most details"
  homepage "https://mysoftwareproject.invalid"
  license "MIT

  url "https://files.pythonhosted.org/packages/cd/28/fa4281532b4eeb28ba5ead093d24d553ee93861df0f743cad37e01ed6bc6/mysoftwareproject-0.1.0a1.tar.gz"
  sha256 "7158b7e86e9b1399a7aae6a169fd8a4716636284b74870a352f268f852098e2c"

  depends_on "python3"
  depends_on "rust" => >:build

  resource "click" do
    url "https://files.pythonhosted.org/packages/96/d3/f04c7bfcf5c1862a2a5b845c6b2b360488cf47af55dfa79c98f6a6bf98b5/click-8.1.7.tar.gz"
    sha256 "ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de"
  end

  resource "pydantic" do
    url "https://files.pythonhosted.org/packages/aa/3f/56142232152145ecbee663d70a19a45d078180633321efb3847d2562b490/pydantic-2.5.3.tar.gz"
    sha256 "b3ef57c62535b0941697cce638c08900d87fcb67e29cfa99e8a68f747f393f7a"
  end

  resource "pydantic-core" do
    url "https://files.pythonhosted.org/packages/b2/7d/8304d8471cfe4288f95a3065ebda56f9790d087edc356ad5bd83c89e2d79/pydantic_core-2.14.6.tar.gz"
    sha256 "1fd0c1d395372843fba13a51c28e3bb9d59bd7aebfeb17358ffaaa1e4dbbe948"
  end

  def install
    virtualenv_create(libexec, "python3")
    virtualenv_install_with_resources

    doing_something_here
    generate_completions_from_executable(bin/"fancy-software", shells: [:bash, :zsh, :fish], shell_parameter_format: :click)
  end

  test do
    false
  end
end

Resources only

If you have other plans and only need the resources to be rendered, your template can also look like this:

{{ RESOURCES }}

This is effectively replicating the behavior of homebrew-pypi-poet in that it only emits the dependency resources:

Rendered example

resource "click" do
  url "https://files.pythonhosted.org/packages/96/d3/f04c7bfcf5c1862a2a5b845c6b2b360488cf47af55dfa79c98f6a6bf98b5/click-8.1.7.tar.gz"
  sha256 "ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de"
end

resource "pydantic" do
  url "https://files.pythonhosted.org/packages/aa/3f/56142232152145ecbee663d70a19a45d078180633321efb3847d2562b490/pydantic-2.5.3.tar.gz"
  sha256 "b3ef57c62535b0941697cce638c08900d87fcb67e29cfa99e8a68f747f393f7a"
end

resource "pydantic-core" do
  url "https://files.pythonhosted.org/packages/b2/7d/8304d8471cfe4288f95a3065ebda56f9790d087edc356ad5bd83c89e2d79/pydantic_core-2.14.6.tar.gz"
  sha256 "1fd0c1d395372843fba13a51c28e3bb9d59bd7aebfeb17358ffaaa1e4dbbe948"
end

Templates from stdin

The plugin supports template definitions via stdin, as well as emitting them to stdout by using - as the option argument:

$ echo '{{RESOURCES}}' | poetry homebrew-formula -t- -o- | tee my-formula.rb

resource "click" do
  url "https://files.pythonhosted.org/packages/96/d3/f04c7bfcf5c1862a2a5b845c6b2b360488cf47af55dfa79c98f6a6bf98b5/click-8.1.7.tar.gz"
  sha256 "ca9853ad459e787e2192211578cc907e7594e294c7ccc834310722b41b9ca6de"
end

resource "pydantic" do
…