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local main, exec
local i = 1
while arg[i] do
if arg[i] == '-E' then
elseif arg[i] == '-e' then
i = i + 1
local expr = assert(arg[i], "'-e' needs argument")
assert(load(expr, "=(command line)"))()
-- exit after the executing
exec = true
elseif not main and arg[i]:sub(1, 1) ~= '-' then
main = i
elseif arg[i]:sub(1, 2) == '--' then
break
end
i = i + 1
end
if exec and not main then
return
end
if main then
for i = -1, -999, -1 do
if not arg[i] then
for j = i + 1, -1 do
arg[j - main + 1] = arg[j]
end
break
end
end
for j = 1, #arg do
arg[j - main] = arg[j]
end
for j = #arg - main + 1, #arg do
arg[j] = nil
end
end
local root
do
if main then
local fs = require 'bee.filesystem'
local mainPath = fs.path(arg[0])
root = mainPath:parent_path():string()
if root == '' then
root = '.'
end
else
local sep = package.config:sub(1, 1)
if sep == '\\' then
sep = '/\\'
end
local pattern = "[" .. sep .. "]+[^" .. sep .. "]+"
root = package.cpath:match("([^;]+)" .. pattern .. pattern .. "$")
arg[0] = root .. package.config:sub(1, 1) .. 'main.lua'
end
root = root:gsub('[/\\]', package.config:sub(1, 1))
end
package.path = table.concat({
root .. "/script/?.lua",
root .. "/script/?/init.lua",
}, ";"):gsub('/', package.config:sub(1, 1))
package.searchers[2] = function (name)
local filename, err = package.searchpath(name, package.path)
if not filename then
return err
end
local f = io.open(filename)
if not f then
return 'cannot open file:' .. filename
end
local buf = f:read '*a'
f:close()
local relative = filename:sub(1, #root) == root and filename:sub(#root + 2) or filename
local init, err = load(buf, '@' .. relative)
if not init then
return err
end
return init, filename
end
assert(loadfile(arg[0]))(table.unpack(arg))
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