From 8a8fec54767194822552fe676363ab4bdd88c1cf Mon Sep 17 00:00:00 2001
From: "Alexandre Cavalheiro S. Tiago da Silva" <contact@thewizard.link>
Date: Tue, 11 Feb 2025 23:35:42 -0300
Subject: [PATCH] feat(neovim): create a helper function to fetch Nix
 derivation outputs

---
 .../home-manager/programs/neovim/polish.lua   | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/modules/home-manager/programs/neovim/polish.lua b/modules/home-manager/programs/neovim/polish.lua
index 9641c76..837bb0f 100644
--- a/modules/home-manager/programs/neovim/polish.lua
+++ b/modules/home-manager/programs/neovim/polish.lua
@@ -15,6 +15,42 @@ vim.filetype.add({
   },
 })
 
+--- Define PackageOutput
+--- @enum PackageOutput
+local PACKAGEOUTPUT = {
+  out = 0,
+  lib = 1,
+}
+
+--- Get the store path of a package
+--- @param packagename NixSearchExceptions | string
+--- @param packageoutput PackageOutput?
+--- @return string | nil
+vim.fn.getnixpath = function(packagename, packageoutput)
+  ---@enum (key) NixSearchExceptions
+  local exceptions = {
+    rzls = "callPackage ~/.system/modules/home-manager/programs/rzls { }",
+  }
+
+  return vim.split(
+    vim.api.nvim_cmd(
+      vim.api.nvim_parse_cmd(
+        string.format(
+          "silent !nix eval --raw --expr 'with import <nixpkgs> { }; (%s).%s' --impure",
+          exceptions[packagename] or packagename,
+          (packageoutput == PACKAGEOUTPUT.out or packageoutput == nil) and "outPath"
+          or string.format("lib.getLib %s", packagename)
+        ),
+        {}
+      ),
+      {
+        output = true,
+      }
+    ),
+    "\n"
+  )[3]
+end
+
 local dap = require("dap")
 
 -- @type DapAdapter