Create third_party

Create a third_party subdirectory and a third_party/lisp. This directory layout
resembles and is inspired by the layout of Google's mono-repo, Google3. @tazjin
borrowed this idea from Google and I'm borrowing the idea from him.

1 files changed, 23 insertions, 0 deletions

diff --git a/third_party/lisp/let-plus.nix b/third_party/lisp/let-plus.nix
new file mode 100644
index 0000000000..a3a15776bf
--- /dev/null
+++ b/third_party/lisp/let-plus.nix
@@ -0,0 +1,23 @@
+{
+  depot ? import <depot> {},
+  universe ? import <universe> {},
+  ...
+}:
+
+let
+  src = builtins.fetchGit {
+    url = "https://github.com/tpapp/let-plus.git";
+    rev = "7cf18b29ed0fe9c667a9a6a101b08ab9661a59e9";
+  };
+in depot.nix.buildLisp.library {
+  name = "let-plus";
+  deps = [
+    depot.third_party.lisp.alexandria
+    universe.third_party.lisp.anaphora
+  ];
+  srcs = [
+    "${src}/package.lisp"
+    "${src}/let-plus.lisp"
+    "${src}/extensions.lisp"
+  ];
+}