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Monthly Downloads: 23
Programming language: Nix
License: MIT License
Tags: Nix     Distribution    
Latest version: v0.2.3

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README

stack2nix

Build Status Hackage

About

stack2nix automates conversion from Stack configuration file to Nix expressions. The purpose is to map stack.yaml one-to-one into Nix expressions.

stack2nix high-level workflow:

  • Generate stackage snapshot to determine complete fixed version list of packages based on resolver
  • apply any additional configuration (local packages, extra dependencies, etc) from stack.yaml
  • generate complete list of dependencies to Nix expressions, replacing upstream hackage-packages.nix

Installation

There are two options. The first - using Nix is recommended. If there are difficulties please file an issue.

Nix (recommended)

  1. Install Nix.
  2. Clone this repo.
  3. Run nix-build to build.

Stack + Nix

  1. Install Nix.
  2. Clone this repo.
  3. Run stack install --nix to install.

Usage

Nix expressions generated by stack2nix require NixOS 17.09 or later.

Local Packages

Sometimes it's convenient to build local Haskell packages. Assuming the current directory is a locally maintained fork of Pandoc:

    $ stack2nix . > default.nix
    $ nix-build -A pandoc

Remote Packages

Stack2nix can generate a nix expressions for Haskell packages hosted in git repositories.

    $ stack2nix --revision 242e2a064f6a32b22e1599bbfe72e64d7b6203b8 https://github.com/jgm/pandoc.git > demo.nix
    $ nix-build -A pandoc demo.nix

Testing

Run ./scripts/travis.sh to build and test.