1ce57df231
Previously color.disabled would be calculated at color module load time, then never touched again. We can detect serial boots beyond just what we're told by loader.conf(5) so this works out in many cases, but we must re-evaluate the situation after the config is loaded to make sure we're not supposed to be forcing it enabled/disabled. Discovered while trying to test r353872.
123 lines
3.2 KiB
Lua
123 lines
3.2 KiB
Lua
--
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-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local core = require("core")
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local hook = require("hook")
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local color = {}
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local function recalcDisabled()
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color.disabled = not color.isEnabled()
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end
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-- Module exports
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color.BLACK = 0
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color.RED = 1
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color.GREEN = 2
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color.YELLOW = 3
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color.BLUE = 4
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color.MAGENTA = 5
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color.CYAN = 6
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color.WHITE = 7
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color.DEFAULT = 9
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color.BRIGHT = 1
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color.DIM = 2
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function color.isEnabled()
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local c = loader.getenv("loader_color")
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if c ~= nil then
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return c:lower() ~= "no" and c ~= "0"
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end
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return not core.isSerialBoot()
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end
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function color.escapefg(color_value)
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if color.disabled then
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return ''
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end
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return core.KEYSTR_CSI .. "3" .. color_value .. "m"
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end
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function color.resetfg()
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if color.disabled then
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return ''
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end
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return color.escapefg(color.DEFAULT)
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end
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function color.escapebg(color_value)
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if color.disabled then
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return ''
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end
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return core.KEYSTR_CSI .. "4" .. color_value .. "m"
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end
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function color.resetbg()
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if color.disabled then
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return ''
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end
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return color.escapebg(color.DEFAULT)
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end
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function color.escape(fg_color, bg_color, attribute)
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if color.disabled then
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return ""
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end
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if attribute == nil then
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attribute = ""
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else
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attribute = attribute .. ";"
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end
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return core.KEYSTR_CSI .. attribute ..
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"3" .. fg_color .. ";4" .. bg_color .. "m"
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end
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function color.default()
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if color.disabled then
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return ""
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end
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return color.escape(color.DEFAULT, color.DEFAULT)
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end
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function color.highlight(str)
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if color.disabled then
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return str
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end
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-- We need to reset attributes as well as color scheme here, just in
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-- case the terminal defaults don't match what we're expecting.
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return core.KEYSTR_CSI .. "1m" .. str .. core.KEYSTR_CSI .. "22m"
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end
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recalcDisabled()
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hook.register("config.loaded", recalcDisabled)
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return color
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