Hello list, On 12/04/2022 08:44, Roland Clobus wrote:
I'll follow-up soon with an updated patch.
As discussed, I've updated the patch. For Lua-based TeX binaries, only when FORCE_SOURCE_DATE=1 and SOURCE_DATE_EPOCH are set, this will initialise the Lua seed to the value of SOURCE_DATE_EPOCH instead of a random value. With this patch, the .fmt files can be generated bit-for-bit identical. Regarding the patch: * This patch is intended only for Lua 5.3 that is embedded in texlive-binaries * A re-definition of `luai_makeseed` is unfortunately not sufficient for Lua 5.3, for 5.4.4 and later it would be. [1] * I've added no validation for the content of SOURCE_DATE_EPOCH: ** 1) That happens in other code locations already ** 2) Even if the value would be incorrect, the Lua seed will still be de-randomized * Do you want some comment lines? * The sorting from by previous patch is no longer required. Only lstate.c needs to be modified. With kind regards, Roland Clobus PS: If you later intend to upgrade to another version of Lua, the fixed seed value can help you in automated tests to see different behaviour due to the upgrade. [1] https://github.com/lua/lua/commit/97e394ba1805fbe394a5704de660403901559e54