hpack

{
  "aliases": [],
  "alternatives": [],
  "build_dependencies": [
    "cabal-install",
    "ghc"
  ],
  "categories": [],
  "caveats": null,
  "conflicts_with": [],
  "dependencies": [
    "gmp"
  ],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "Modern format for Haskell packages",
  "disable_reason": null,
  "disabled": 0,
  "enrichment_fetched_at": "2026-06-20T23:38:40+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "hpack",
  "github_default_branch": "main",
  "github_last_commit_at": "2026-06-08T09:08:46Z",
  "github_readme_excerpt": "[![Hackage version](https://img.shields.io/hackage/v/hpack.svg?label=Hackage\u0026color=informational)](http://hackage.haskell.org/package/hpack)\n[![Stackage LTS version](https://www.stackage.org/package/hpack/badge/lts?label=Stackage)](https://www.stackage.org/package/hpack)\n[![hpack on Stackage Nightly](https://stackage.org/package/hpack/badge/nightly)](https://stackage.org/nightly/package/hpack)\n\n# hpack: A modern format for Haskell packages\n\nHpack is a format for Haskell packages.  It is a modern alternative to the\nCabal package format and follows different design principles.\n\n\n## Design principles\nThe guiding design principles for Hpack are:\n\n* Don\u0027t require the user to state the obvious, make sensible assumptions by\n  default\n* Give the user 100% control when needed\n* Don\u0027t require the user to repeat things, facilitate [DRY](https://en.wikipedia.org/wiki/Don\u0027t_repeat_yourself)ness\n\n## Tool integration\n\nHpack packages are described in a file named `package.yaml`.  Both\n[`cabal2nix`](https://hackage.haskell.org/package/cabal2nix) and\n[`stack`](https://haskellstack.org/) support `package.yaml` natively.  For\nother build tools the `hpack` executable can be used to generate a `.cabal`\nfile from `package.yaml`.\n\n## There is no user guide\n\nThere is reference documentation below, but introductory documentation is still\nlacking. For the time being, take a look at the slides from my talk about Hpack\nat the Singapore Haskell meetup: http://typeful.net/talks/hpack\n\n## Examples\n\n * Given this [package.yaml](https://github.com/sol/hpack/blob/main/package.yaml) running `hpack` will generate [hpack.cabal](https://github.com/sol/hpack/blob/main/hpack.cabal)\n * Given this [package.yaml](https://github.com/zalora/getopt-generics/blob/master/package.yaml) running `hpack` will generate [getopt-generics.cabal](https://github.com/zalora/getopt-generics/blob/master/getopt-generics.cabal)\n * Given this [package.yaml](https://github.com/hspec/sensei/blob/main/package.yaml) running `hpack` w",
  "github_repo": "sol/hpack",
  "github_stars": 665,
  "github_topics": [],
  "homepage": "https://github.com/sol/hpack",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": null,
  "installs_30d": 22,
  "installs_365d": 355,
  "installs_90d": 91,
  "keg_only": 0,
  "keg_only_reason": null,
  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "MIT",
  "llm_generated_at": null,
  "llm_model": null,
  "name": "hpack",
  "oldnames": [],
  "one_liner": null,
  "optional_dependencies": [],
  "rank_30d": 6581,
  "rank_365d": 5926,
  "rank_90d": 5821,
  "raw_hash": "b93fb3a1159fd363",
  "recommended_dependencies": [],
  "revision": 0,
  "ruby_source_path": "Formula/h/hpack.rb",
  "tap": "homebrew/core",
  "test_dependencies": [],
  "uses_from_macos": [
    "libffi"
  ],
  "version_head": "HEAD",
  "version_stable": "0.39.6",
  "versioned_formulae": [],
  "why_use_this": null
}