awesome/utils.lua

   1 local utils  = { }
   2 local io     = { popen = io.popen }
   3 local string = { match = string.match,
   4                  lower = string.lower}
   5
   6 utils.rules = { }
   7 utils.globalkeys = { }
   8
   9 local host = io.popen("hostname")
  10 utils.host = host:read("*l")
  11
  12 function utils.run_or_kill(command)
  13     -- Check throught the clients if the class match the command
  14     local lower_command=string.lower(command)
  15     for k, c in pairs(client.get()) do
  16         -- apparently some steam games don't have a client class
  17         if c.class ~= nil then
  18             local class=string.lower(c.class)
  19             if string.match(class, lower_command) then
  20                 for i, v in ipairs(c:tags()) do
  21                     c:kill()
  22                     return
  23                 end
  24             end
  25         end
  26     end
  27     awful.util.spawn(command)
  28 end
  29
  30 -- http://awesome.naquadah.org/wiki/Autostart#Simple_way
  31 function utils.run_once(prg,arg_string,pname,screen)
  32     if not prg then
  33         do return nil end
  34     end
  35
  36     if not pname then
  37        pname = prg
  38     end
  39
  40     if not arg_string then
  41         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. "' || (" .. prg .. ")",screen)
  42     else
  43         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. " ".. arg_string .."' || (" .. prg .. " " .. arg_string .. ")",screen)
  44     end
  45 end
  46
  47 function utils.get_default_sink()
  48     local f = io.popen('ponymix defaults --short')
  49     line = f:read('*l')
  50     f:close()
  51     return string.match(line, "^sink%s*%d*%s*(.-)%s")
  52 end
  53
  54 function utils.joinTables(t1, t2)
  55     for k,v in ipairs(t2) do table.insert(t1, v) end return t1
  56 end
  57
  58 function utils.rules.append(rules)
  59     awful.rules.rules = awful.util.table.join(awful.rules.rules, rules)
  60 end
  61
  62 function utils.globalkeys.append(keys)
  63     globalkeys = awful.util.table.join(globalkeys, keys)
  64 end
  65
  66 return utils