Marcel Fabian Krüger
005b391342
This is a security measure. The init script runs with maximum privileges, especially allowing full shell escape and similar. We don't want to allow circumventing such options by naming a local file like an initscript.
33 lines
1.2 KiB
Lua
33 lines
1.2 KiB
Lua
local format = os.selfname -- or os.selfcore, I couldn't find a difference yet
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local ourname = arg[0] -- This might not be os.selfarg[0]
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-- We want to drop arg[0] aka. ourname from the arguments to avoid recursion
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if os.selfarg[0] == ourname then
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ourname = nil
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end
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for i, a in ipairs(os.selfarg) do
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if a == ourname then -- Avoid recursion
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table.remove(os.selfarg, i)
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ourname = nil
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a = os.selfarg[i]
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end
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if a == "--" then break end -- This convention is not respected by luametatex itself
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-- LuaMetaTeX needs -- to introduce parameters,
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-- but fmtutil uses just -. Let's rewrite this on the fly:
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a = a:gsub("^%-%-?", "--")
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os.selfarg[i] = a
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if a:sub(1, 11) == "--progname=" then
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format = a:sub(12)
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end
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end
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os.setenv("engine", status.luatex_engine)
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local kpse_call = io.popen(string.format("kpsewhich -progname %s -format lua -all -must-exist %s-init.lua", format, format))
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local file
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repeat
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file = kpse_call:read()
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until not file:match('^%.')
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if not kpse_call:close() then
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error(file)
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end
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local args = os.selfarg[1] and " \"" .. table.concat(os.selfarg, "\" \"") .. "\"" or ""
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os.exit(os.execute(string.format("luametatex \"--lua=%s\" --arg0=\"%s\"%s", file, os.selfarg[0], args)))
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