tools/script_manager - allow for inclusion of directory/package specific

libraries by adding "local" libraries to the search
                       path to ensure they are found when needed.

tools/script_manager.lua

@@ -509,6 +509,25 @@ local function process_script_data(script_file)
   restore_log_level(old_log_level)
 end
 
+local function ensure_lib_in_search_path(line)
+  local old_log_level = set_log_level(sm.log_level)
+  set_log_level(log.debug)
+  log.msg(log.debug, "line is " .. line)
+  if string.match(line, ds.sanitize_lua(dt.configuration.config_dir .. PS .. "lua/lib")) then
+    log.msg(log.debug, line .. " is already in search path, returning...")
+    return
+  end
+  local path = string.match(line, "(.+)/lib/.+lua")
+  log.msg(log.debug, "extracted path is " .. path)
+  log.msg(log.debug, "package.path is " .. package.path)
+  if not string.match(package.path, ds.sanitize_lua(path)) then
+    log.msg(log.debug, "path isn't in package.path, adding...")
+    package.path = package.path .. ";" .. path .. "/?.lua"
+    log.msg(log.debug, "new package.path is " .. package.path)
+  end
+  restore_log_level(old_log_level)
+end
+
 local function scan_scripts(script_dir)
   local old_log_level = set_log_level(sm.log_level)
   local script_count = 0
@@ -529,6 +548,8 @@ local function scan_scripts(script_dir)
             process_script_data(script_file)
             script_count = script_count + 1
           end
+        else
+          ensure_lib_in_search_path(line)                             -- but let's make sure libraries can be found
         end
       end
     end