1 files changed, 32 insertions, 0 deletions
diff --git a/pkgs/tools/package-management/nix-universal-prefetch/default.nix b/pkgs/tools/package-management/nix-universal-prefetch/default.nix
new file mode 100644
index 0000000000000..a4e43f1496777
--- /dev/null
+++ b/pkgs/tools/package-management/nix-universal-prefetch/default.nix
@@ -0,0 +1,32 @@
+{ stdenv
+, fetchFromGitHub
+, ruby
+}:
+
+# No gems used, so mkDerivation is fine.
+stdenv.mkDerivation rec {
+  pname = "nix-universal-prefetch";
+  version = "0.2.0";
+
+  src = fetchFromGitHub {
+    owner = "samueldr";
+    repo = "nix-universal-prefetch";
+    rev = "v${version}";
+    sha256 = "1id9iaibrm2d3fa9dkcxnb3sd0j1vh502181gdd199a1cfsmzh1i";
+  };
+
+  installPhase = ''
+    mkdir -pv $out/bin
+    cp nix-universal-prefetch $out/bin/nix-universal-prefetch
+    substituteInPlace "$out/bin/nix-universal-prefetch" \
+      --replace "/usr/bin/env nix-shell" "${ruby}/bin/ruby"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Uses nixpkgs fetchers to figure out hashes";
+    homepage = https://github.com/samueldr/nix-universal-prefetch;
+    license = licenses.mit;
+    maintainers = with maintainers; [ samueldr ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}