freebsd-skq/stand/lua/menu.lua

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--
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-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
--
-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
-- Copyright (C) 2018 Kyle Evans <kevans@FreeBSD.org>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
-- 1. Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
-- 2. Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-- SUCH DAMAGE.
--
-- $FreeBSD$
--
local core = require("core")
local color = require("color")
local config = require("config")
local screen = require("screen")
local drawer = require("drawer")
local menu = {}
local OnOff = function(str, b)
if b then
return str .. color.escapef(color.GREEN) .. "On" ..
color.escapef(color.WHITE)
else
return str .. color.escapef(color.RED) .. "off" ..
color.escapef(color.WHITE)
end
end
local bootenvSet = function(env)
loader.setenv("vfs.root.mountfrom", env)
loader.setenv("currdev", env .. ":")
config.reload()
end
-- Module exports
menu.handlers = {
-- Menu handlers take the current menu and selected entry as parameters,
-- and should return a boolean indicating whether execution should
-- continue or not. The return value may be omitted if this entry should
-- have no bearing on whether we continue or not, indicating that we
-- should just continue after execution.
[core.MENU_ENTRY] = function(_, entry)
-- run function
entry.func()
end,
[core.MENU_CAROUSEL_ENTRY] = function(_, entry)
-- carousel (rotating) functionality
local carid = entry.carousel_id
local caridx = config.getCarouselIndex(carid)
local choices = entry.items
if type(choices) == "function" then
choices = choices()
end
if #choices > 0 then
caridx = (caridx % #choices) + 1
config.setCarouselIndex(carid, caridx)
entry.func(caridx, choices[caridx], choices)
end
end,
[core.MENU_SUBMENU] = function(_, entry)
-- recurse
return menu.run(entry.submenu)
end,
[core.MENU_RETURN] = function(_, entry)
-- allow entry to have a function/side effect
if entry.func ~= nil then
entry.func()
end
return false
end,
}
-- loader menu tree is rooted at menu.welcome
menu.boot_environments = {
entries = {
-- return to welcome menu
{
entry_type = core.MENU_RETURN,
name = "Back to main menu" ..
color.highlight(" [Backspace]"),
},
{
entry_type = core.MENU_CAROUSEL_ENTRY,
carousel_id = "be_active",
items = core.bootenvList,
name = function(idx, choice, all_choices)
if #all_choices == 0 then
return "Active: "
end
local is_default = (idx == 1)
local bootenv_name = ""
local name_color
if is_default then
name_color = color.escapef(color.GREEN)
else
name_color = color.escapef(color.BLUE)
end
bootenv_name = bootenv_name .. name_color ..
choice .. color.default()
return color.highlight("A").."ctive: " ..
bootenv_name .. " (" .. idx .. " of " ..
#all_choices .. ")"
end,
func = function(_, choice, _)
bootenvSet(choice)
end,
alias = {"a", "A"},
},
{
entry_type = core.MENU_ENTRY,
name = function()
return color.highlight("b") .. "ootfs: " ..
core.bootenvDefault()
end,
func = function()
-- Reset active boot environment to the default
config.setCarouselIndex("be_active", 1)
bootenvSet(core.bootenvDefault())
end,
alias = {"b", "B"},
},
},
}
menu.boot_options = {
entries = {
-- return to welcome menu
{
entry_type = core.MENU_RETURN,
name = "Back to main menu" ..
color.highlight(" [Backspace]"),
},
-- load defaults
{
entry_type = core.MENU_ENTRY,
name = "Load System " .. color.highlight("D") ..
"efaults",
func = core.setDefaults,
alias = {"d", "D"}
},
{
entry_type = core.MENU_SEPARATOR,
},
{
entry_type = core.MENU_SEPARATOR,
name = "Boot Options:",
},
-- acpi
{
entry_type = core.MENU_ENTRY,
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visible = core.isSystem386,
name = function()
return OnOff(color.highlight("A") ..
"CPI :", core.acpi)
end,
func = core.setACPI,
alias = {"a", "A"}
},
-- safe mode
{
entry_type = core.MENU_ENTRY,
name = function()
return OnOff("Safe " .. color.highlight("M") ..
"ode :", core.sm)
end,
func = core.setSafeMode,
alias = {"m", "M"}
},
-- single user
{
entry_type = core.MENU_ENTRY,
name = function()
return OnOff(color.highlight("S") ..
"ingle user:", core.su)
end,
func = core.setSingleUser,
alias = {"s", "S"}
},
-- verbose boot
{
entry_type = core.MENU_ENTRY,
name = function()
return OnOff(color.highlight("V") ..
"erbose :", core.verbose)
end,
func = core.setVerbose,
alias = {"v", "V"}
},
},
}
menu.welcome = {
entries = function()
local menu_entries = menu.welcome.all_entries
-- Swap the first two menu items on single user boot
if core.isSingleUserBoot() then
-- We'll cache the swapped menu, for performance
if menu.welcome.swapped_menu ~= nil then
return menu.welcome.swapped_menu
end
-- Shallow copy the table
menu_entries = core.deepCopyTable(menu_entries)
-- Swap the first two menu entries
menu_entries[1], menu_entries[2] =
menu_entries[2], menu_entries[1]
-- Then set their names to their alternate names
menu_entries[1].name, menu_entries[2].name =
menu_entries[1].alternate_name,
menu_entries[2].alternate_name
menu.welcome.swapped_menu = menu_entries
end
return menu_entries
end,
all_entries = {
-- boot multi user
{
entry_type = core.MENU_ENTRY,
name = color.highlight("B") .. "oot Multi user " ..
color.highlight("[Enter]"),
-- Not a standard menu entry function!
alternate_name = color.highlight("B") ..
"oot Multi user",
func = function()
core.setSingleUser(false)
core.boot()
end,
alias = {"b", "B"}
},
-- boot single user
{
entry_type = core.MENU_ENTRY,
name = "Boot " .. color.highlight("S") .. "ingle user",
-- Not a standard menu entry function!
alternate_name = "Boot " .. color.highlight("S") ..
"ingle user " .. color.highlight("[Enter]"),
func = function()
core.setSingleUser(true)
core.boot()
end,
alias = {"s", "S"}
},
-- escape to interpreter
{
entry_type = core.MENU_RETURN,
name = color.highlight("Esc") .. "ape to loader prompt",
func = function()
loader.setenv("autoboot_delay", "NO")
end,
alias = {core.KEYSTR_ESCAPE}
},
-- reboot
{
entry_type = core.MENU_ENTRY,
name = color.highlight("R") .. "eboot",
func = function()
loader.perform("reboot")
end,
alias = {"r", "R"}
},
{
entry_type = core.MENU_SEPARATOR,
},
{
entry_type = core.MENU_SEPARATOR,
name = "Options:",
},
-- kernel options
{
entry_type = core.MENU_CAROUSEL_ENTRY,
carousel_id = "kernel",
items = core.kernelList,
name = function(idx, choice, all_choices)
if #all_choices == 0 then
return "Kernel: "
end
local is_default = (idx == 1)
local kernel_name = ""
local name_color
if is_default then
name_color = color.escapef(color.GREEN)
kernel_name = "default/"
else
name_color = color.escapef(color.BLUE)
end
kernel_name = kernel_name .. name_color ..
choice .. color.default()
return color.highlight("K") .. "ernel: " ..
kernel_name .. " (" .. idx .. " of " ..
#all_choices .. ")"
end,
func = function(_, choice, _)
config.selectkernel(choice)
end,
alias = {"k", "K"}
},
-- boot options
{
entry_type = core.MENU_SUBMENU,
name = "Boot " .. color.highlight("O") .. "ptions",
submenu = menu.boot_options,
alias = {"o", "O"}
},
-- boot environments
{
entry_type = core.MENU_SUBMENU,
visible = function()
return core.isZFSBoot() and
#core.bootenvList() > 1
end,
name = "Boot " .. color.highlight("E") .. "nvironments",
submenu = menu.boot_environments,
alias = {"e", "E"},
},
},
}
menu.default = menu.welcome
function menu.run(m)
if menu.skip() then
core.autoboot()
return false
end
if m == nil then
m = menu.default
end
-- redraw screen
screen.clear()
screen.defcursor()
local alias_table = drawer.drawscreen(m)
-- Might return nil, that's ok
local autoboot_key;
if m == menu.default then
autoboot_key = menu.autoboot()
end
local cont = true
while cont do
local key = autoboot_key or io.getchar()
autoboot_key = nil
-- Special key behaviors
if (key == core.KEY_BACKSPACE or key == core.KEY_DELETE) and
m ~= menu.default then
break
elseif key == core.KEY_ENTER then
core.boot()
-- Should not return
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end
key = string.char(key)
-- check to see if key is an alias
local sel_entry = nil
for k, v in pairs(alias_table) do
if key == k then
sel_entry = v
end
end
-- if we have an alias do the assigned action:
if sel_entry ~= nil then
-- Get menu handler
local handler = menu.handlers[sel_entry.entry_type]
if handler ~= nil then
-- The handler's return value indicates whether
-- we need to exit this menu. An omitted return
-- value means "continue" by default.
cont = handler(m, sel_entry)
if cont == nil then
cont = true
end
end
-- if we got an alias key the screen is out of date:
screen.clear()
screen.defcursor()
alias_table = drawer.drawscreen(m)
end
end
if m == menu.default then
screen.defcursor()
print("Exiting menu!")
return false
end
return true
end
function menu.skip()
if core.isSerialBoot() then
return true
end
local c = string.lower(loader.getenv("console") or "")
if c:match("^efi[ ;]") ~= nil or c:match("[ ;]efi[ ;]") ~= nil then
return true
end
c = string.lower(loader.getenv("beastie_disable") or "")
print("beastie_disable", c)
return c == "yes"
end
function menu.autoboot()
local ab = loader.getenv("autoboot_delay")
if ab ~= nil and ab:lower() == "no" then
return nil
elseif tonumber(ab) == -1 then
core.boot()
end
ab = tonumber(ab) or 10
local x = loader.getenv("loader_menu_timeout_x") or 5
local y = loader.getenv("loader_menu_timeout_y") or 22
local endtime = loader.time() + ab
local time
repeat
time = endtime - loader.time()
screen.setcursor(x, y)
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print("Autoboot in " .. time ..
" seconds, hit [Enter] to boot" ..
" or any other key to stop ")
screen.defcursor()
if io.ischar() then
local ch = io.getchar()
if ch == core.KEY_ENTER then
break
else
-- erase autoboot msg
screen.setcursor(0, y)
print(string.rep(" ", 80))
screen.defcursor()
return ch
end
end
loader.delay(50000)
until time <= 0
core.boot()
end
return menu