push sheeet

pkgs/development/beam-modules/fetch-rebar-deps.nix

@@ -0,0 +1,46 @@
+{
+  lib,
+  stdenv,
+  rebar3,
+}:
+
+{
+  name,
+  version,
+  sha256,
+  src,
+  meta ? { },
+}:
+
+stdenv.mkDerivation {
+  pname = "rebar-deps-${name}";
+  inherit version;
+
+  dontUnpack = true;
+  dontConfigure = true;
+  dontFixup = true;
+
+  buildPhase = ''
+    cp -r ${src} src
+    chmod -R u+w src
+    cd src
+    HOME='.' DEBUG=1 ${rebar3}/bin/rebar3 get-deps
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p "$out/_checkouts"
+    for i in ./_build/default/lib/* ; do
+       echo "$i"
+       cp -R "$i" "$out/_checkouts"
+    done
+    runHook postInstall
+  '';
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = sha256;
+
+  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+  inherit meta;
+}