forked from mirrors/nixpkgs
76 lines
2.2 KiB
Nix
76 lines
2.2 KiB
Nix
{ stdenv, lib, buildEnv, buildRubyGem, ruby, gemConfig, makeWrapper }:
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/*
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Example usage:
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nix-shell -E "(import <nixpkgs> {}).ruby.withPackages (pkgs: with pkgs; [ pry nokogiri ])"
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You can also use this for writing ruby scripts that run anywhere that has nix
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using a nix-shell shebang:
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#!/usr/bin/env nix-shell
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#!nix-shell -i ruby -p "ruby.withPackages (pkgs: with pkgs; [ pry nokogiri ])"
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Run the following in the nixpkgs root directory to update the ruby-packages.nix:
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./maintainers/scripts/update-ruby-packages
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*/
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let
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functions = import ../bundled-common/functions.nix { inherit lib gemConfig; };
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buildGems = gemset:
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let
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realGemset = if builtins.isAttrs gemset then gemset else import gemset;
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builtGems =
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lib.mapAttrs (name: initialAttrs:
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let
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attrs = functions.applyGemConfigs ({ inherit ruby; gemName = name; } // initialAttrs);
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in
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buildRubyGem (functions.composeGemAttrs ruby builtGems name attrs)
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) realGemset;
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in builtGems;
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gems = buildGems (import ../../../top-level/ruby-packages.nix);
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withPackages = selector:
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let
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selected = selector gems;
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gemEnv = buildEnv {
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name = "ruby-gems";
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paths = selected;
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pathsToLink = [ "/lib" "/bin" "/nix-support" ];
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};
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wrappedRuby = stdenv.mkDerivation {
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name = "wrapped-${ruby.name}";
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nativeBuildInputs = [ makeWrapper ];
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buildCommand = ''
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mkdir -p $out/bin
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for i in ${ruby}/bin/*; do
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makeWrapper "$i" $out/bin/$(basename "$i") --set GEM_PATH ${gemEnv}/${ruby.gemPath}
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done
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'';
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};
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in stdenv.mkDerivation {
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name = "${ruby.name}-with-packages";
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nativeBuildInputs = [ makeWrapper ];
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buildInputs = [ selected ruby ];
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unpackPhase = ":";
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installPhase = ''
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for i in ${ruby}/bin/* ${gemEnv}/bin/*; do
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rm -f $out/bin/$(basename "$i")
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makeWrapper "$i" $out/bin/$(basename "$i") --set GEM_PATH ${gemEnv}/${ruby.gemPath}
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done
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'';
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passthru = {
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inherit wrappedRuby;
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gems = selected;
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};
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};
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in { inherit withPackages gems buildGems; }
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