1 files changed, 36 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix b/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix
new file mode 100644
index 000000000000..2ba0fefd6aba
--- /dev/null
+++ b/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix
@@ -0,0 +1,36 @@
+{ lib, fetchFromGitHub, crystal, makeWrapper, nix-prefetch-git }:
+
+crystal.buildCrystalPackage rec {
+  pname = "crystal2nix";
+  version = "0.3.0";
+
+  src = fetchFromGitHub {
+    owner = "peterhoeg";
+    repo = "crystal2nix";
+    rev = "v${version}";
+    hash = "sha256-gb2vgKWVXwYWfUUcFvOLFF0qB4CTBekEllpyKduU1Mo=";
+  };
+
+  format = "shards";
+
+  shardsFile = ./shards.nix;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postInstall = ''
+    wrapProgram $out/bin/crystal2nix \
+      --prefix PATH : ${lib.makeBinPath [ nix-prefetch-git ]}
+  '';
+
+  # temporarily off. We need the checks to execute the wrapped binary
+  doCheck = false;
+
+  doInstallCheck = true;
+
+  meta = with lib; {
+    description = "Utility to convert Crystal's shard.lock files to a Nix file";
+    mainProgram = "crystal2nix";
+    license = licenses.mit;
+    maintainers = with maintainers; [ manveru peterhoeg ];
+  };
+}