opus/sys/boot/opus.boot

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-- Loads the Opus environment regardless if the file system is local or not
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local colors = _G.colors
local fs = _G.fs
local http = _G.http
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local os = _G.os
local shell = _ENV.shell
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local term = _G.term
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local w, h = term.getSize()
term.setTextColor(colors.white)
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if term.isColor() then
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term.setBackgroundColor(colors.black)
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term.clear()
local opus = {
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'fffff00',
'ffff07000',
'ff00770b00 4444',
'ff077777444444444',
'f07777744444444444',
'f0000777444444444',
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'070000111744444',
'777770000',
'7777000000',
'70700000000',
'077000000000',
}
for k,line in ipairs(opus) do
term.setCursorPos((w - 18) / 2, k + (h - #opus) / 2)
term.blit(string.rep(' ', #line), string.rep('a', #line), line)
end
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end
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term.setCursorPos((w - 18) / 2, h)
term.write('Loading Opus...')
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term.setCursorPos(w, h)
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local GIT_REPO = 'kepler155c/opus/develop-1.8'
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local BASE = 'https://raw.githubusercontent.com/' .. GIT_REPO
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local sandboxEnv = setmetatable({ }, { __index = _G })
for k,v in pairs(_ENV) do
sandboxEnv[k] = v
end
sandboxEnv.multishell = _ENV.multishell or { }
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local function makeEnv()
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local env = setmetatable({ }, { __index = _G })
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for k,v in pairs(sandboxEnv) do
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env[k] = v
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end
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return env
end
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-- os.run doesn't provide return values :(
local function run(file, ...)
local s, m = loadfile(file, makeEnv())
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if s then
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s, m = pcall(s, ...)
if s then
return m
end
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end
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error('Error loading ' .. file .. '\n' .. m)
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end
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local function runUrl(file, ...)
local url = BASE .. '/' .. file
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local u = http.get(url)
if u then
local fn = load(u.readAll(), url, nil, makeEnv())
u.close()
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if fn then
return fn(...)
end
end
error('Failed to download ' .. url)
end
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_G.debug = function() end
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-- Install require shim
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if fs.exists('sys/apis/injector.lua') then
_G.requireInjector = run('sys/apis/injector.lua')
else
-- not local, run the file system directly from git
_G.requireInjector = runUrl('/sys/apis/injector.lua')
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runUrl('sys/extensions/vfs.lua')
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-- install file system
fs.mount('', 'gitfs', GIT_REPO)
end
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_G.requireInjector()
local Util = require('util')
-- Default label
if not os.getComputerLabel() then
local id = os.getComputerID()
if _G.turtle then
os.setComputerLabel('turtle_' .. id)
elseif _G.pocket then
os.setComputerLabel('pocket_' .. id)
elseif _G.commands then
os.setComputerLabel('command_' .. id)
else
os.setComputerLabel('computer_' .. id)
end
end
-- user environment
if not fs.exists('usr/apps') then
fs.makeDir('usr/apps')
end
if not fs.exists('usr/autorun') then
fs.makeDir('usr/autorun')
end
if not fs.exists('usr/etc/fstab') then
Util.writeFile('usr/etc/fstab', 'usr gitfs kepler155c/opus-apps/develop-1.8')
end
if not fs.exists('usr/config/shell') then
Util.writeTable('usr/config/shell', {
aliases = shell.aliases(),
path = 'usr/apps:sys/apps:' .. shell.path(),
lua_path = '/sys/apis:/usr/apis',
})
end
-- shell environment
local config = Util.readTable('usr/config/shell')
if config.aliases then
for k in pairs(shell.aliases()) do
shell.clearAlias(k)
end
for k,v in pairs(config.aliases) do
shell.setAlias(k, v)
end
end
shell.setPath(config.path)
sandboxEnv.LUA_PATH = config.lua_path
Util.run(makeEnv(), 'sys/kernel.lua')
-- extensions
local dir = 'sys/extensions'
for _,file in ipairs(fs.list(dir)) do
local s, m = Util.run(makeEnv(), 'sys/apps/shell', fs.combine(dir, file))
if not s then
error(m)
end
end
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-- install user file systems
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fs.loadTab('usr/etc/fstab')
local args = { ... }
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if args[1] then
term.setBackgroundColor(colors.black)
term.clear()
term.setCursorPos(1, 1)
end
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local cterm = term.current()
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args[1] = args[1] or 'sys/apps/multishell'
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local routine = kernel.newRoutine({
path = 'sys/apps/shell',
args = args
})
kernel.run(routine)
local s, m = pcall(kernel.start)
term.redirect(cterm)
term.setBackgroundColor(colors.black)
term.setTextColor(colors.white)
term.clear()
term.setCursorPos(1, 1)
if not s then
print('\nCrash detected\n')
_G.printError(m)
end
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fs.restore()