home: vim: add 'ambroisie.utils' lua module

home/vim/default.nix

@@ -13,6 +13,7 @@ let
       "after"
       "autoload"
       "ftdetect"
+      "lua"
       "plugin"
     ];
 in

home/vim/lua/ambroisie/utils.lua

@@ -0,0 +1,17 @@
+local M = {}
+
+--- checks if a given command is executable
+---@param cmd string? command to check
+---@return boolean executable
+M.is_executable = function(cmd)
+    return cmd and vim.fn.executable(cmd) == 1
+end
+
+--- return a function that checks if a given command is executable
+---@param cmd string? command to check
+---@return fun(cmd: string): boolean executable
+M.is_executable_condition = function(cmd)
+    return function() return M.is_executable(cmd) end
+end
+
+return M