mirror of https://github.com/lcpz/lain.git
91 lines
1.9 KiB
Lua
91 lines
1.9 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2013, Luke Bonham
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* (c) 2010-2012, Peter Hofmann
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* (c) 2010, Adrian C. <anrxc@sysphere.org>
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--]]
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local awful = require("awful")
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local debug = require("debug")
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local pairs = pairs
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local rawget = rawget
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-- Lain helper functions for internal use
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-- lain.helpers
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local helpers = {}
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helpers.lain_dir = debug.getinfo(1, 'S').source:match[[^@(.*/).*$]]
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helpers.icons_dir = helpers.lain_dir .. 'icons/'
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helpers.scripts_dir = helpers.lain_dir .. 'scripts/'
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-- {{{ Modules loader
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function helpers.wrequire(table, key)
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local module = rawget(table, key)
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return module or require(table._NAME .. '.' .. key)
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end
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-- }}}
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-- {{{
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-- If lain.terminal is a string, e.g. "xterm", then "xterm -e " .. cmd is
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-- run. But if lain.terminal is a function, then terminal(cmd) is run.
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function helpers.run_in_terminal(cmd)
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if type(terminal) == "function"
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then
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terminal(cmd)
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elseif type(terminal) == "string"
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then
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awful.util.spawn(terminal .. ' -e ' .. cmd)
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end
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end
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-- }}}
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-- {{{ Format units to one decimal point
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function helpers.uformat(array, key, value, unit)
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for u, v in pairs(unit) do
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array["{"..key.."_"..u.."}"] = string.format("%.1f", value/v)
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end
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return array
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end
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-- }}}
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-- {{{ Read the first line of a file or return nil.
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function helpers.first_line(f)
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local fp = io.open(f)
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if not fp
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then
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return nil
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end
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local content = fp:read("*l")
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fp:close()
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return content
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end
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-- }}}
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-- {{{ A map utility
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helpers.map_table = {}
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function helpers.set_map(element, value)
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helpers.map_table[element] = value
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end
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function helpers.get_map(element)
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return helpers.map_table[element]
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end
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-- }}}
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return helpers
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