Make some packages compatible with no allow-import-from-derivation

[perso/Immae/Config/Nix.git] / libs.nix

diff --git a/libs.nix b/libs.nix
index cef85869d513fba5227907955abe20eef49d60d0..2ddfcbb59d48598cf8a82c0c8a42b3d45a0015b0 100644 (file)
--- a/libs.nix
+++ b/libs.nix
@@ -1,14 +1,17 @@
-let nixpkgs_unstable = import (builtins.fetchTarball {
-  # FIXME: upgrade to nixpkgs 19 when stable and stick to stable
-  # versions
-  name = "nixos-unstable-2018-12-08";
-  url = https://github.com/nixos/nixpkgs/archive/61c3169a0e17d789c566d5b241bfe309ce4a6275.tar.gz;
-  sha256 = "0qbycg7wkb71v20rchlkafrjfpbk2fnlvvbh3ai9pyfisci5wxvq";
-}) {};
-in
-  with nixpkgs_unstable;
-{
-  inherit nixpkgs_unstable;
+{ pkgs }:
+with pkgs;
+rec {
+  yarn2nixPackage = let
+    src = builtins.fetchGit {
+      url = "git://github.com/moretea/yarn2nix.git";
+      ref = "master";
+      rev = "780e33a07fd821e09ab5b05223ddb4ca15ac663f";
+    };
+  in
+    (callPackage src {}) // { inherit src; };
+
+  nodeEnv = import ./lib/node-env.nix;
+
   fetchedGithub = path:
     let
       json = lib.importJSON path;
@@ -27,5 +30,49 @@ in
       src = fetchgit json.git;
     };
 
-  checkEnv = var: builtins.stringLength (builtins.getEnv var) > 0;
-}
+  fetchedGitPrivate = path:
+    let
+      json = lib.importJSON path;
+    in rec {
+      version = json.tag;
+      name = "${json.meta.name}-${version}";
+      src = fetchgitPrivate json.git;
+    };
+
+  wrap = { paths ? [], vars ? {}, file ? null, script ? null, name ? "wrap" }:
+    assert file != null || script != null ||
+      abort "wrap needs 'file' or 'script' argument";
+    with rec {
+      set  = n: v: "--set ${pkgs.lib.escapeShellArg n} " +
+                    "${pkgs.lib.escapeShellArg v}";
+      args = (map (p: "--prefix PATH : ${p}/bin") paths) ++
+            (builtins.attrValues (pkgs.lib.mapAttrs set vars));
+    };
+    runCommand name
+      {
+        f           = if file == null then writeScript name script else file;
+        buildInputs = [ makeWrapper ];
+      }
+      ''
+        makeWrapper "$f" "$out" ${toString args}
+      '';
+
+  # This adds header colors to the builds, but it rebuilds the whole
+  # world from scratch, so only use it to debug!
+  # add it as postHook in derivations
+  immaePostHook = ''
+    header() {
+      echo -ne "\033[1;36m"
+      echo -n "$1"
+      echo -e "\033[0m"
+    }
+
+    echoCmd() {
+      printf "\033[1;34m%s:\033[0m" "$1"
+      shift
+      printf ' %q' "$@"
+      echo
+    }
+  '';
+
+} // (if builtins.pathExists ./lib/private then import ./lib/private else {})