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(prg, cprop, screen)
  13     if not prg then
  14         do return nil end
  15     end
  16
  17     if not cprop then
  18         cprop = { }
  19     end
  20
  21     if not cprop.class then
  22         cprop.class = prg
  23     end
  24
  25     if not cprop.instance then
  26         cprop.instance = ""
  27     end
  28
  29     cprop.class = string.lower(cprop.class)
  30     cprop.instance = string.lower(cprop.instance)
  31
  32     for k, c in pairs(client.get()) do
  33         -- apparently some steam games don't have a client class
  34         if c.class == nil then
  35             return
  36         end
  37         local class=string.lower(c.class)
  38         local instance=string.lower(c.instance)
  39         if string.match(class, cprop.class) and string.match(instance, cprop.instance) then
  40             for i, v in ipairs(c:tags()) do
  41                 c:kill()
  42                 return
  43             end
  44         end
  45     end
  46     awful.util.spawn_with_shell(prg, screen)
  47 end
  48
  49 -- http://awesome.naquadah.org/wiki/Autostart#Simple_way
  50 function utils.run_once(prg,arg_string,pname,screen)
  51     if not prg then
  52         do return nil end
  53     end
  54
  55     if not pname then
  56        pname = prg
  57     end
  58
  59     if not arg_string then
  60         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. "' || (" .. prg .. ")",screen)
  61     else
  62         awful.util.spawn_with_shell("pgrep -f -u $USER -x '" .. pname .. " ".. arg_string .."' || (" .. prg .. " " .. arg_string .. ")",screen)
  63     end
  64 end
  65
  66 function utils.get_default_sink()
  67     local f = io.popen('ponymix defaults --short')
  68     line = f:read('*l')
  69     f:close()
  70     return string.match(line, "^sink%s*%d*%s*(.-)%s")
  71 end
  72
  73 function utils.joinTables(t1, t2)
  74     for k,v in ipairs(t2) do table.insert(t1, v) end return t1
  75 end
  76
  77 function utils.rules.append(rules)
  78     awful.rules.rules = awful.util.table.join(awful.rules.rules, rules)
  79 end
  80
  81 function utils.globalkeys.append(keys)
  82     globalkeys = awful.util.table.join(globalkeys, keys)
  83 end
  84
  85 return utils