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mirror of https://github.com/kepler155c/opus synced 2024-12-27 09:00:41 +00:00
opus/sys/boot/multishell.boot
2017-10-24 23:01:40 -04:00

141 lines
3.2 KiB
Clojure

-- Loads the Opus environment regardless if the file system is local or not
local colors = _G.colors
local fs = _G.fs
local http = _G.http
local shell = _ENV.shell
local term = _G.term
local w, h = term.getSize()
term.setTextColor(colors.white)
if term.isColor() then
term.setBackgroundColor(colors.black)
term.clear()
local opus = {
'fffff00',
'ffff07000',
'ff00770b00 4444',
'ff077777444444444',
'f07777744444444444',
'f0000777444444444',
'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
end
term.setCursorPos((w - 18) / 2, h)
term.write('Loading Opus...')
term.setCursorPos(w, h)
local GIT_REPO = 'kepler155c/opus/develop'
local BASE = 'https://raw.githubusercontent.com/' .. GIT_REPO
local sandboxEnv = setmetatable({ }, { __index = _G })
for k,v in pairs(_ENV) do
sandboxEnv[k] = v
end
local function makeEnv()
local env = setmetatable({ }, { __index = _G })
for k,v in pairs(sandboxEnv) do
env[k] = v
end
return env
end
-- os.run doesn't provide return values :(
local function run(file, ...)
local s, m = loadfile(file, makeEnv())
if s then
return s(...)
end
error('Error loading ' .. file .. '\n' .. m)
end
local function runUrl(file, ...)
local url = BASE .. '/' .. file
local u = http.get(url)
if u then
local fn = load(u.readAll(), url, nil, makeEnv())
u.close()
if fn then
return fn(...)
end
end
error('Failed to download ' .. url)
end
_G.debug = function() end
-- Install require shim
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')
runUrl('/sys/extensions/vfs.lua')
-- install file system
fs.mount('', 'gitfs', GIT_REPO)
end
local Util = run('sys/apis/util.lua')
-- 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')
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
-- extensions
local dir = 'sys/extensions'
for _,file in ipairs(fs.list(dir)) do
run('sys/apps/shell', fs.combine(dir, file))
end
-- install user file systems
fs.loadTab('usr/etc/fstab')
local args = { ... }
if args[1] then
term.setBackgroundColor(colors.black)
term.clear()
term.setCursorPos(1, 1)
end
args[1] = args[1] or 'sys/apps/multishell'
run('sys/apps/shell', table.unpack(args))
fs.restore()