libs/uvl/luasrc/uvl/loghelper.lua

   1 --[[
   2
   3 UCI Validation Layer - Logging utilities
   4 (c) 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
   5 (c) 2008 Steven Barth <steven@midlink.org>
   6
   7 Licensed under the Apache License, Version 2.0 (the "License");
   8 you may not use this file except in compliance with the License.
   9 You may obtain a copy of the License at
  10
  11         http://www.apache.org/licenses/LICENSE-2.0
  12
  13 $Id$
  14
  15 ]]--
  16
  17 module( "luci.uvl.loghelper", package.seeall )
  18
  19 function config_error( config, message )
  20         return string.format(
  21                 'Error in config "%s":\n%s',
  22                         config, message or "Unknown error"
  23         )
  24 end
  25
  26 function section_error( section, message )
  27         return string.format(
  28                 'Error in section "%s":\n%s',
  29                         section:cid(), message or "Unknown error"
  30         )
  31 end
  32
  33 function validator_error( option, message )
  34         return string.format(
  35                 'External validator in option "%s" failed:\n%s',
  36                         option:cid(), message or "Unknown error"
  37         )
  38 end
  39
  40 function dump_dependency( dep, ref, v, e )
  41         local str = nil
  42
  43         for k, v in luci.util.spairs( dep,
  44                 function(a,b)
  45                         a = ( type(dep[a]) ~= "boolean" and "_" or "" ) .. a
  46                         b = ( type(dep[b]) ~= "boolean" and "_" or "" ) .. b
  47                         return a < b
  48                 end
  49         ) do
  50                 str = ( str and str .. " and " or "Dependency (" ) .. k ..
  51                         ( type(v) ~= "boolean" and "=" .. v or "" )
  52         end
  53
  54         str = string.format(
  55                 '%s) failed:\n\t%s',
  56                 str, e and e:gsub("\n","\n\t") or string.format(
  57                         'Option "%s" %s',
  58                         table.concat( ref, "." ), (
  59                                 type(v) == "boolean"
  60                                         and "has no value" or 'is not equal "' .. v .. '"'
  61                         )
  62                 )
  63         )
  64
  65         return str
  66 end