libs.nix

   1 { pkgs }:
   2 with pkgs;
   3 rec {
   4   yarn2nixPackage = let
   5     src = builtins.fetchGit {
   6       url = "git://github.com/moretea/yarn2nix.git";
   7       ref = "master";
   8       rev = "780e33a07fd821e09ab5b05223ddb4ca15ac663f";
   9     };
  10   in
  11     (callPackage src {}) // { inherit src; };
  12
  13   nodeEnv = import ./lib/node-env.nix;
  14
  15   fetchedGithub = path:
  16     let
  17       json = lib.importJSON path;
  18     in rec {
  19       version = json.tag;
  20       name = "${json.meta.name}-${version}";
  21       src = fetchFromGitHub json.github;
  22     };
  23
  24   fetchedGit = path:
  25     let
  26       json = lib.importJSON path;
  27     in rec {
  28       version = json.tag;
  29       name = "${json.meta.name}-${version}";
  30       src = fetchgit json.git;
  31     };
  32
  33   fetchedGitPrivate = path:
  34     let
  35       json = lib.importJSON path;
  36     in rec {
  37       version = json.tag;
  38       name = "${json.meta.name}-${version}";
  39       src = fetchgitPrivate json.git;
  40     };
  41
  42   wrap = { paths ? [], vars ? {}, file ? null, script ? null, name ? "wrap" }:
  43     assert file != null || script != null ||
  44       abort "wrap needs 'file' or 'script' argument";
  45     with rec {
  46       set  = n: v: "--set ${pkgs.lib.escapeShellArg n} " +
  47                     "${pkgs.lib.escapeShellArg v}";
  48       args = (map (p: "--prefix PATH : ${p}/bin") paths) ++
  49             (builtins.attrValues (pkgs.lib.mapAttrs set vars));
  50     };
  51     runCommand name
  52       {
  53         f           = if file == null then writeScript name script else file;
  54         buildInputs = [ makeWrapper ];
  55       }
  56       ''
  57         makeWrapper "$f" "$out" ${toString args}
  58       '';
  59
  60   # This adds header colors to the builds, but it rebuilds the whole
  61   # world from scratch, so only use it to debug!
  62   # add it as postHook in derivations
  63   immaePostHook = ''
  64     header() {
  65       echo -ne "\033[1;36m"
  66       echo -n "$1"
  67       echo -e "\033[0m"
  68     }
  69
  70     echoCmd() {
  71       printf "\033[1;34m%s:\033[0m" "$1"
  72       shift
  73       printf ' %q' "$@"
  74       echo
  75     }
  76   '';
  77
  78 } // (if builtins.pathExists ./lib/private then import ./lib/private else {})