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fs: asynchronous: fs.show too
[etc/awesome.git] / widgets / fs.lua
diff --git a/widgets/fs.lua b/widgets/fs.lua
index 79f821ef3ecd5c3fcaee0487a70abead4febb390..d5dd49ad8ad3c30ab7112301d839e4d1bc44cbe5 100644 (file)
--- a/widgets/fs.lua
+++ b/widgets/fs.lua
@@ -1,23 +1,20 @@
 
 --[[
 
 --[[
-                                                      
-     Licensed under GNU General Public License v2     
-      * (c) 2013, Luke Bonham                         
-      * (c) 2010, Adrian C.      <anrxc@sysphere.org> 
-      * (c) 2009, Lucas de Vries <lucas@glacicle.com> 
-                                                      
+                                                  
+     Licensed under GNU General Public License v2 
+      * (c) 2013, Luke Bonham                     
+                                                  
 --]]
 
 local helpers      = require("lain.helpers")
 
 --]]
 
 local helpers      = require("lain.helpers")
 
+local shell        = require("awful.util").shell
 local beautiful    = require("beautiful")
 local beautiful    = require("beautiful")
+local focused      = require("awful.screen").focused
 local wibox        = require("wibox")
 local naughty      = require("naughty")
 
 local wibox        = require("wibox")
 local naughty      = require("naughty")
 
-local io           = io
-local pairs        = pairs
-local string       = { match  = string.match,
-                       format = string.format }
+local string       = string
 local tonumber     = tonumber
 
 local setmetatable = setmetatable
 local tonumber     = tonumber
 
 local setmetatable = setmetatable
@@ -26,91 +23,102 @@ local setmetatable = setmetatable
 -- lain.widgets.fs
 local fs = {}
 
 -- lain.widgets.fs
 local fs = {}
 
-local notification  = nil
-fs_notification_preset = { fg = beautiful.fg_normal }
+-- Unit definitions
+fs.unit = { ["mb"] = 1024, ["gb"] = 1024^2 }
 
 
-function fs:hide()
-    if notification ~= nil then
-        naughty.destroy(notification)
-        notification = nil
-    end
+function fs.hide()
+    naughty.destroy(fs.notification)
+    fs.notification = nil
 end
 
 end
 
-function fs:show(t_out)
-    fs:hide()
+function fs.show(seconds, scr)
+    fs.hide()
+
+    if fs.followtag then
+        fs.notification_preset.screen = focused()
+    elseif scr then
+        fs.notification_preset.screen = scr
+    end
 
 
-    local f = io.popen(helpers.scripts_dir .. "dfs")
-    ws = f:read("*all"):gsub("\n*$", "")
-    f:close()
+    local cmd = (fs.options and string.format("dfs %s", fs.options)) or "dfs"
 
 
-    notification = naughty.notify({
-        preset = fs_notification_preset,
-        text = ws,
-       timeout = t_out
-    })
+    helpers.async(helpers.scripts_dir .. cmd, function(ws)
+        fs.notification = naughty.notify({
+            preset      = fs.notification_preset,
+            text        = ws:gsub("\n*$", ""),
+            timeout     = seconds or 5,
+        })
+    end)
 end
 
 end
 
--- Unit definitions
-local unit = { ["mb"] = 1024, ["gb"] = 1024^2 }
-
 local function worker(args)
 local function worker(args)
-    local args      = args or {}
-    local timeout   = args.timeout or 600
-    local partition = args.partition or "/"
-    local settings  = args.settings or function() end
+    local args             = args or {}
+    local timeout          = args.timeout or 600
+    local partition        = args.partition or "/"
+    local showpopup        = args.showpopup or "on"
+    local notify           = args.notify or "on"
+    local settings         = args.settings or function() end
 
 
-    fs.widget = wibox.widget.textbox('')
+    fs.options             = args.options
+    fs.followtag           = args.followtag or false
+    fs.notification_preset = args.notification_preset or { fg = beautiful.fg_normal }
 
 
-    helpers.set_map("fs", false)
+    fs.widget = wibox.widget.textbox()
 
 
-    function update()
-        fs_info = {}
-        fs_now  = {}
+    helpers.set_map(partition, false)
 
 
-        local f = io.popen("LC_ALL=C df -kP " .. partition)
 
 
-        for line in f:lines() do -- Match: (size) (used)(avail)(use%) (mount)
-            local s     = string.match(line, "^.-[%s]([%d]+)")
-            local u,a,p = string.match(line, "([%d]+)[%D]+([%d]+)[%D]+([%d]+)%%")
-            local m     = string.match(line, "%%[%s]([%p%w]+)")
+    function update()
+        fs_info, fs_now  = {}, {}
+        helpers.async(string.format("%s -c 'LC_ALL=C df -k --output=target,size,used,avail,pcent'", shell), function(f)
+            for line in string.gmatch(f, "\n[^\n]+") do
+                local m,s,u,a,p = string.match(line, "(/.-%s).-(%d+).-(%d+).-(%d+).-([%d]+)%%")
+                m = m:gsub(" ", "") -- clean target from any whitespace
+
+                fs_info[m .. " size_mb"]  = string.format("%.1f", tonumber(s) / fs.unit["mb"])
+                fs_info[m .. " size_gb"]  = string.format("%.1f", tonumber(s) / fs.unit["gb"])
+                fs_info[m .. " used_mb"]  = string.format("%.1f", tonumber(u) / fs.unit["mb"])
+                fs_info[m .. " used_gb"]  = string.format("%.1f", tonumber(u) / fs.unit["gb"])
+                fs_info[m .. " used_p"]   = p
+                fs_info[m .. " avail_mb"] = string.format("%.1f", tonumber(a) / fs.unit["mb"])
+                fs_info[m .. " avail_gb"] = string.format("%.1f", tonumber(a) / fs.unit["gb"])
+                fs_info[m .. " avail_p"]  = string.format("%d", 100 - tonumber(p))
+            end
 
 
-            if u and m then -- Handle 1st line and broken regexp
-                fs_info[m .. " size_mb"]  = string.format("%.1f", tonumber(s) / unit["mb"])
-                fs_info[m .. " size_gb"]  = string.format("%.1f", tonumber(s) / unit["gb"])
-                fs_info[m .. " used_p"]   = tonumber(p)
-                fs_info[m .. " avail_p"]  = 100 - tonumber(p)
+            fs_now.size_mb      = fs_info[partition .. " size_mb"]  or "N/A"
+            fs_now.size_gb      = fs_info[partition .. " size_gb"]  or "N/A"
+            fs_now.used         = fs_info[partition .. " used_p"]   or "N/A"
+            fs_now.used_mb      = fs_info[partition .. " used_mb"]  or "N/A"
+            fs_now.used_gb      = fs_info[partition .. " used_gb"]  or "N/A"
+            fs_now.available    = fs_info[partition .. " avail_p"]  or "N/A"
+            fs_now.available_mb = fs_info[partition .. " avail_mb"] or "N/A"
+            fs_now.available_gb = fs_info[partition .. " avail_gb"] or "N/A"
+
+            notification_preset = fs.notification_preset
+            widget = fs.widget
+            settings()
+
+            if notify == "on" and fs_now.used >= 99 and not helpers.get_map(partition) then
+                naughty.notify({
+                    title   = "warning",
+                    text    = partition .. " is empty!",
+                    timeout = 8,
+                    fg      = "#000000",
+                    bg      = "#FFFFFF"
+                })
+                helpers.set_map(partition, true)
+            else
+                helpers.set_map(partition, false)
             end
             end
-        end
-
-        f:close()
-
-        fs_now.used      = tonumber(fs_info[partition .. " used_p"])  or 0
-        fs_now.available = tonumber(fs_info[partition .. " avail_p"]) or 0
-        fs_now.size_mb   = tonumber(fs_info[partition .. " size_mb"]) or 0
-        fs_now.size_gb   = tonumber(fs_info[partition .. " size_gb"]) or 0
-
-        widget = fs.widget
-        settings()
-
-        if fs_now.used >= 99 and not helpers.get_map("fs")
-        then
-            naughty.notify({
-                title = "warning",
-                text = partition .. " ran out!\nmake some room",
-                timeout = 8,
-                fg = "#000000",
-                bg = "#FFFFFF"
-            })
-            helpers.set_map("fs", true)
-        else
-            helpers.set_map("fs", false)
-        end
+        end)
     end
 
     end
 
-    helpers.newtimer(partition, timeout, update)
+    if showpopup == "on" then
+       fs.widget:connect_signal('mouse::enter', function () fs.show(0) end)
+       fs.widget:connect_signal('mouse::leave', function () fs.hide() end)
+    end
 
 
-    widget:connect_signal('mouse::enter', function () fs:show(0) end)
-    widget:connect_signal('mouse::leave', function () fs:hide() end)
+    helpers.newtimer(partition, timeout, update)
 
     return setmetatable(fs, { __index = fs.widget })
 end
 
     return setmetatable(fs, { __index = fs.widget })
 end
awesome window-manager configuration

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