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widget.bat: put {batteries,ac} back to local
[etc/awesome.git] / widget / fs.lua
1 --[[
2
3      Licensed under GNU General Public License v2
4       * (c) 2018, Uli Schlacter
5       * (c) 2018, Otto Modinos
6       * (c) 2013, Luca CPZ
7
8 --]]
9
10 local helpers    = require("lain.helpers")
11 local Gio        = require("lgi").Gio
12 local focused    = require("awful.screen").focused
13 local wibox      = require("wibox")
14 local naughty    = require("naughty")
15 local math       = math
16 local string     = string
17 local tconcat    = table.concat
18 local tonumber   = tonumber
19 local query_size = Gio.FILE_ATTRIBUTE_FILESYSTEM_SIZE
20 local query_free = Gio.FILE_ATTRIBUTE_FILESYSTEM_FREE
21 local query_used = Gio.FILE_ATTRIBUTE_FILESYSTEM_USED
22 local query      = query_size .. "," .. query_free .. "," .. query_used
23
24 -- File systems info
25 -- lain.widget.fs
26
27 local function factory(args)
28     local fs = {
29         widget = wibox.widget.textbox(),
30         units = {
31             [1] = "Kb", [2] = "Mb", [3] = "Gb",
32             [4] = "Tb", [5] = "Pb", [6] = "Eb",
33             [7] = "Zb", [8] = "Yb"
34         }
35     }
36
37     function fs.hide()
38         if not fs.notification then return end
39         naughty.destroy(fs.notification)
40         fs.notification = nil
41     end
42
43     function fs.show(seconds, scr)
44         fs.hide(); fs.update()
45         fs.notification_preset.screen = fs.followtag and focused() or scr or 1
46         fs.notification = naughty.notify {
47             preset  = fs.notification_preset,
48             timeout = seconds or 5
49         }
50     end
51
52     local args      = args or {}
53     local timeout   = args.timeout or 600
54     local partition = args.partition
55     local showpopup = args.showpopup or "on"
56     local settings  = args.settings or function() end
57
58     fs.followtag           = args.followtag or false
59     fs.notification_preset = args.notification_preset
60
61     if not fs.notification_preset then
62         fs.notification_preset = {
63             font = "Monospace 10",
64             fg   = "#FFFFFF",
65             bg   = "#000000"
66         }
67     end
68
69     function fs.update()
70         local notifytable = { [1] = string.format("%-10s %-5s %s\t%s\t\n", "path", "used", "free", "size") }
71         local pathlen = 10
72         fs_now = {}
73
74         for _, mount in ipairs(Gio.unix_mounts_get()) do
75             local path = Gio.unix_mount_get_mount_path(mount)
76             local root = Gio.File.new_for_path(path)
77             local info = root:query_filesystem_info(query)
78
79             if info then
80                 local size = info:get_attribute_uint64(query_size)
81                 local used = info:get_attribute_uint64(query_used)
82                 local free = info:get_attribute_uint64(query_free)
83
84                 if size > 0 then
85                     local units = math.floor(math.log(size)/math.log(1024))
86
87                     fs_now[path] = {
88                         units      = fs.units[units],
89                         percentage = math.floor(100 * used / size), -- used percentage
90                         size       = size / math.pow(1024, math.floor(units)),
91                         used       = used / math.pow(1024, math.floor(units)),
92                         free       = free / math.pow(1024, math.floor(units))
93                     }
94
95                     if fs_now[path].percentage > 0 then -- don't notify unused file systems
96                         notifytable[#notifytable+1] = string.format("\n%-10s %-5s %.2f\t%.2f\t%s", path,
97                         fs_now[path].percentage .. "%", fs_now[path].free, fs_now[path].size,
98                         fs_now[path].units)
99
100                         pathlen = math.max(pathlen, #path)
101                     end
102                 end
103             end
104         end
105
106         widget = fs.widget
107         settings()
108
109         if partition and fs_now[partition] and fs_now[partition].used >= 99 then
110             if not helpers.get_map(partition) then
111                 naughty.notify {
112                     preset = naughty.config.presets.critical,
113                     title  = "Warning",
114                     text   = partition .. " is full",
115                 }
116                 helpers.set_map(partition, true)
117             else
118                 helpers.set_map(partition, false)
119             end
120         end
121
122         if pathlen > 10 then -- formatting aesthetics
123             for i = 1, #notifytable do
124                 local pathspaces = notifytable[i]:match("/%w*[/%w*]*%s*") or notifytable[i]:match("path%s*")
125                 notifytable[i] = notifytable[i]:gsub(pathspaces, pathspaces .. string.rep(" ", pathlen - 10) .. "\t")
126             end
127         end
128
129         fs.notification_preset.text = tconcat(notifytable)
130     end
131
132     if showpopup == "on" then
133        fs.widget:connect_signal('mouse::enter', function () fs.show(0) end)
134        fs.widget:connect_signal('mouse::leave', function () fs.hide() end)
135     end
136
137     helpers.newtimer(partition or "fs", timeout, fs.update)
138
139     return fs
140 end
141
142 return factory