42 lines
992 B
Lua
42 lines
992 B
Lua
local shutil = {}
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function shutil.genenv()
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local et = os.genenv()
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for k,v in pairs(shutil) do
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if k ~= "genenv" then
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et[k] = v
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end
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end
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return et
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end
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function shutil.exec(line)
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local words = {}
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for w in line:gmatch("%S+") do table.insert(words,w) end
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if _ENV[words[1]] then
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local prg = table.remove(words,1)
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local r={pcall(_ENV[prg],table.unpack(words))}
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if r[1] == true then
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table.remove(r,1)
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end
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return table.unpack(r)
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end
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local pth = os.getenv("PATH") or "."
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for d in pth:gmatch("[^:]+") do
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local prg = words[1]
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_,lex = pcall(fs.exists,d.."/"..prg..".lua")
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_,nex = pcall(fs.exists,d.."/"..prg)
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if lex or nex then
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table.remove(words,1)
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end
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if lex then
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return pcall(loadfile(d.."/"..prg..".lua"),table.unpack(words))
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elseif nex then
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return pcall(loadfile(d.."/"..prg),table.unpack(words))
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end
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end
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if line:sub(1,1) == "=" then
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line="return "..line:sub(2)
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end
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local r={pcall(load(line,"shell","bt",_ENV))}
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return table.unpack(r)
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end
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