OC-PsychOS2/lib/shell.lua

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local serial = require "serialization"
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local shell = {}
shell.include = {"shutil"}
local function shindex(self,k)
if rawget(self,k) then return rawget(self,k) end
for _,v in pairs(os.getenv("INCLUDE") or shell.include) do
if require(v)[k] then return require(v)[k] end
end
if package.loaded[k] then return package.loaded[k] end
return _G[k]
end
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local function formatValue(v)
if type(v) == "table" then
local w, rs = pcall(serial.serialize,v)
if w then return rs end
end
return tostring(v)
end
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function shell.interactive()
local shenv = setmetatable({}, {__index=shindex})
local run = true
while run do
io.write(string.format("%s:%s> ",os.getenv("HOSTNAME") or "localhost",(os.getenv("PWD") or _VERSION)))
local input = io.read()
if input:sub(1,1) == "=" then
input = "return "..input:sub(2)
end
local f, r = load(input, "shell", "t", shenv)
if not f then
print(r)
else
local rt = {pcall(f)}
local rs = table.remove(rt,1)
for k,v in pairs(rt) do
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print(formatValue(v))
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end
end
end
end
return shell