mtwtkman / pura

Pura

shell.nix generator.

If you have the file named hs.yaml (or hs.yml) like below,

packages:
  - ghc
  - cabal-install
  - haskell-language-server
shellAliases:
  b: "cabal build"
  c: "cabal clean"
  r: "cabal run"
  repl: "cabal repl"
shellHook: |
  function hi() {
    echo "hi"
  }

Pura recognizes this file as a boilerplate of shell.nix named hs.

After you executed pura hs, Pura generated a shell.nix like below

with import <nixpkgs> {};
mkShell {
  packages = [
    ghc
    cabal-install
    haskell-language-server
  ];
  shellHook = ''
    alias b="cabal build"
    alias c="cabal clean"
    alias r="cabal run"
    alias repl="cabal repl"
    function hi() {
      echo "hi"
    }
  '';
}

Usage

1. Prepare template file
2. Move to a project root directory
3. Execute pura <name>
4. Done

Pura supposes the location of template files is ~/.config/pura but you can specify it your choice by using --template-root option.

Template file format

name	type	default
packages	Array	[]
shellAliases	Array<KeyValue<Name,Value>>	[]
shellHook	String	""

shellAliases are merged with shellHook as shell aliases.