1 files changed, 35 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/elm/makeDotElm.nix b/nixpkgs/pkgs/development/compilers/elm/makeDotElm.nix
new file mode 100644
index 000000000000..43252747c3a3
--- /dev/null
+++ b/nixpkgs/pkgs/development/compilers/elm/makeDotElm.nix
@@ -0,0 +1,35 @@
+{stdenv, lib, fetchurl, registryDat}:
+
+ver: deps:
+  let cmds = lib.mapAttrsToList (name: info: let
+               pkg = stdenv.mkDerivation {
+                 name = lib.replaceStrings ["/"] ["-"] name + "-${info.version}";
+
+                 src = fetchurl {
+                   url = "https://github.com/${name}/archive/${info.version}.tar.gz";
+                   meta.homepage = "https://github.com/${name}/";
+                   inherit (info) sha256;
+                 };
+
+                 configurePhase = ''
+                   true
+                 '';
+
+                 buildPhase = ''
+                   true
+                 '';
+
+                 installPhase = ''
+                   mkdir -p $out
+                   cp -r * $out
+                 '';
+               };
+             in ''
+               mkdir -p .elm/${ver}/packages/${name}
+               cp -R ${pkg} .elm/${ver}/packages/${name}/${info.version}
+             '') deps;
+  in (lib.concatStrings cmds) + ''
+    mkdir -p .elm/${ver}/packages;
+    cp ${registryDat} .elm/${ver}/packages/registry.dat;
+    chmod -R +w .elm
+  ''