1 files changed, 117 insertions, 0 deletions
diff --git a/lain/widgets/fs.lua b/lain/widgets/fs.lua
new file mode 100644
index 0000000..8b51178
--- /dev/null
+++ b/lain/widgets/fs.lua
@@ -0,0 +1,117 @@
+
+--[[
+                                                      
+     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> 
+                                                      
+--]]
+
+local helpers      = require("lain.helpers")
+
+local beautiful    = require("beautiful")
+local wibox        = require("wibox")
+local naughty      = require("naughty")
+
+local io           = { popen  = io.popen }
+local pairs        = pairs
+local string       = { match  = string.match,
+                       format = string.format }
+local tonumber     = tonumber
+
+local setmetatable = setmetatable
+
+-- File system disk space usage
+-- lain.widgets.fs
+local fs = {}
+
+local notification  = nil
+fs_notification_preset = { fg = beautiful.fg_normal }
+
+function fs:hide()
+    if notification ~= nil then
+        naughty.destroy(notification)
+        notification = nil
+    end
+end
+
+function fs:show(t_out)
+    fs:hide()
+
+    local f = io.popen(helpers.scripts_dir .. "dfs")
+    ws = f:read("*a"):gsub("\n*$", "")
+    f:close()
+
+    notification = naughty.notify({
+        preset = fs_notification_preset,
+        text = ws,
+        timeout = t_out,
+    })
+end
+
+-- Unit definitions
+local unit = { ["mb"] = 1024, ["gb"] = 1024^2 }
+
+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
+
+    fs.widget = wibox.widget.textbox('')
+
+    helpers.set_map("fs", false)
+
+    function update()
+        fs_info = {}
+        fs_now  = {}
+        local f = assert(io.popen("LC_ALL=C df -kP"))
+
+        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]+)")
+
+            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)
+            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
+
+    helpers.newtimer(partition, timeout, update)
+
+    widget:connect_signal('mouse::enter', function () fs:show(0) end)
+    widget:connect_signal('mouse::leave', function () fs:hide() end)
+
+    return setmetatable(fs, { __index = fs.widget })
+end
+
+return setmetatable(fs, { __call = function(_, ...) return worker(...) end })