From a57dac5b77dc0718f1c5a0d6e809ed5e1f3d14ac Mon Sep 17 00:00:00 2001
From: Daniel Kempkens <daniel+git@kempkens.io>
Date: Sat, 11 Jun 2022 17:32:28 +0200
Subject: [PATCH] Add fennel-luajit overlay

---
 README.md   |  1 +
 overlay.nix | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/README.md b/README.md
index e40f48a..0fc0555 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 
 * [agilebits-op](https://app-updates.agilebits.com/product_history/CLI2)
 * [cliclick](https://github.com/BlueM/cliclick)
+* fennel-luajit
 * [phantomjs](https://github.com/ariya/phantomjs)
 * [proximity-sort](https://github.com/jonhoo/proximity-sort)
 * [q](https://github.com/natesales/q)
diff --git a/overlay.nix b/overlay.nix
index 83a7bc0..1e77930 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -8,4 +8,19 @@ let custom = super.callPackage ./packages.nix { }; in
   inherit (custom) phantomjs;
   inherit (custom) proximity-sort;
   inherit (custom) q;
+
+  fennel-luajit = super.fennel.overrideAttrs (
+    let
+      luaPackages = with super.luajitPackages; [ readline ];
+    in
+    o: rec {
+      buildInputs = [ super.luajit super.makeWrapper ] ++ luaPackages;
+
+      postInstall = o.postInstall or "" + ''
+        wrapProgram $out/bin/fennel \
+          --suffix LUA_CPATH ";" "${super.lib.concatMapStringsSep ";" super.luajitPackages.getLuaCPath luaPackages}" \
+          --suffix LUA_PATH ";" "${super.lib.concatMapStringsSep ";" super.luajitPackages.getLuaPath luaPackages}"
+      '';
+    }
+  );
 }