lain/fs.md

Shows disk space usage for a set partition.

Displays a notification when the partition is full or has low space.

mypartition = lain.widgets.fs()

The function takes a table as optional argument, which can contain:

Variable	Meaning	Type	Default
partition	Partition to monitor	string	"/"
refresh_timeout	Refresh timeout seconds	int	600
header	Text to show before value	string	" Hdd "
header_color	Header color	string	beautiful.fg_normal or "#FFFFFF"
color	Value color	string	beautiful.fg_focus or "#FFFFFF"
footer	Text to show after value	string	"%"
shadow	Hide the widget if partition < 90	boolean	false

Note: footer color is color.

lain.widgets.fs outputs the following table:

Variable	Meaning	Type
widget	The widget	wibox.widget.textbox
show	The notification	function

You can display the notification with a key binding like this:

awful.key({ altkey }, "h", function () mypartition.show(7) end),

where altkey = "Mod1" and show argument is an optional integer, meaning timeout seconds.