awesome/utils.lua

   1 local utils = { }
   2 utils.rules = { }
   3 utils.globalkeys = { }
   4
   5 local host = io.popen("hostname")
   6 utils.host = host:read("*l")
   7
   8 function utils.run_or_kill(command)
   9     -- Check throught the clients if the class match the command
  10     local lower_command=string.lower(command)
  11     for k, c in pairs(client.get()) do
  12         -- apparently some steam games don't have a client class
  13         if c.class ~= nil then
  14             local class=string.lower(c.class)
  15             if string.match(class, lower_command) then
  16                 for i, v in ipairs(c:tags()) do
  17                     c:kill()
  18                     return
  19                 end
  20             end
  21         end
  22     end
  23     awful.util.spawn(command)
  24 end
  25
  26 -- http://awesome.naquadah.org/wiki/Autostart#Simple_way
  27 function utils.run_once(prg,arg_string,pname,screen)
  28     if not prg then
  29         do return nil end
  30     end
  31
  32     if not pname then
  33        pname = prg
  34     end
  35
  36     if not arg_string then
  37         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. "' || (" .. prg .. ")",screen)
  38     else
  39         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. " ".. arg_string .."' || (" .. prg .. " " .. arg_string .. ")",screen)
  40     end
  41 end
  42
  43
  44 function utils.joinTables(t1, t2)
  45     for k,v in ipairs(t2) do table.insert(t1, v) end return t1
  46 end
  47
  48 function utils.rules.append(rules)
  49     awful.rules.rules = awful.util.table.join(awful.rules.rules, rules)
  50 end
  51
  52 function utils.globalkeys.append(keys)
  53     globalkeys = awful.util.table.join(globalkeys, keys)
  54 end
  55
  56 return utils