configmanager: Delay importing LuaFileSystem until needed by an Include line

diff --git a/core/configmanager.lua b/core/configmanager.lua
index d73bafa4e2bc2ff126b86056af72dd8f0c416106..d175b54b3efd9feaaaf5e57b27a5dd382fe5498f 100644 (file)
--- a/core/configmanager.lua
+++ b/core/configmanager.lua
@@ -14,7 +14,7 @@ local format, math_max = string.format, math.max;
 local fire_event = prosody and prosody.events.fire_event or function () end;
 
 local envload = require"util.envload".envload;
-local lfs = require "lfs";
+local deps = require"util.dependencies";
 local path_sep = package.config:sub(1,1);
 
 module "configmanager"
@@ -214,6 +214,10 @@ do
                
                function env.Include(file)
                        if file:match("[*?]") then
+                               local lfs = deps.softreq "lfs";
+                               if not lfs then
+                                       error(format("Error expanding wildcard pattern in Include %q - LuaFileSystem not available", file));
+                               end
                                local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
                                local path = file:sub(1, math_max(path_pos-2,0));
                                local config_path = config_file:gsub("[^"..path_sep.."]+$", "");