...

Signed-off-by: Rainer Bendig <hexathos@mailbox.org>

awesome/bootstrap.lua

@@ -0,0 +1,111 @@
+-- Alexander Tsepkov, 2015
+--
+-- Collection of utilities for awesome WM to import/use awesome-zen platform better.
+
+
+local awful = require("awful")
+local naughty = require("naughty")
+
+
+-- spawn a system tool/utility once, useful for those pesky system tray icons that keep stacking with themselves, 
+-- also can be used to load anything, including compositor, etc.
+function spawn_once_name(name, command)
+    os.execute("pgrep " .. name .. " || " .. command .. " &")
+end
+function spawn_once(name)
+    spawn_once_name(name, name)
+end
+
+-- loads a widget
+function load_widget(config)
+    require(config.widget)
+
+    -- if user defined a zenstate, assign it to the widget so it can respond accordingly
+    if config.zenstate then
+        widget.zenstate = config.zenstate
+    end
+
+    -- notify that the widget was loaded, if asked by rc.lua
+    if config.notify then
+        naughty.notify({
+            title = "Widget Loaded",
+            text = "Loaded " .. config.widget
+        })
+    end
+
+    return widget
+end
+
+-- load utility if not loaded yet, if loaded avoid loading it twice, print message if asked
+function load_script(name, notify)
+    local success
+    local result
+
+    -- Which file? In rc/ or in lib/?
+    local path = awful.util.getdir("config") ..
+        "/" .. name .. ".lua"
+
+    -- Execute the RC/module file
+    success, result = pcall(function() return dofile(path) end)
+    if not success then
+        naughty.notify({
+            title = "Error Loading Script",
+            text = "When loading `" .. name .. "`, got the following error:\n" .. result,
+            preset = naughty.config.presets.critical
+        })
+        return print("E: error loading script: '" .. name .. "': " .. result)
+    elseif notify then
+        naughty.notify({
+            title = "Script Loaded",
+            text = "Loaded " .. name
+        })
+    end
+
+    return result
+end
+
+
+-- rounding error is pretty bad in lua
+local EPSILON = 1e-3
+-- compare two tables, because out of the box lua sucks
+function equals(a, b)
+    if a == b then return true end
+    local aType = type(a)
+    local bType = type(b)
+    if aType == 'number' and bType == 'number' and math.abs(a - b) < EPSILON then return true end
+    if aType ~= bType then return false end
+    if aType ~= 'table' then return false end
+
+    local seen = {}
+    for key, val1 in pairs(a) do
+        local val2 = b[key]
+        if val2 == nil or equals(val1, val2) == false then
+            return false
+        end
+        seen[key] = true
+    end
+
+    for key, _ in pairs(b) do
+        if not seen[key] then return false end
+    end
+    return true
+end
+
+
+-- dump loa table to string
+function dump(tbl, indent)
+    local output = ''
+    if not indent then indent = 0 end
+    for k, v in pairs(tbl) do
+        formatting = string.rep("  ", indent) .. k .. ": "
+        if type(v) == "table" then
+            output = output .. formatting .. "\n"
+            tprint(v, indent+1)
+        elseif type(v) == 'boolean' then
+            output = output .. formatting .. tostring(v) .. "\n"
+        else
+            output = output .. formatting .. v .. "\n"
+        end
+    end
+    return output
+end