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Austin Horstman
d82f383100
Wrapped Nixvim configs previously passed the generated init.lua with -u. Neovim treats that startup path as an explicit user config and skips exrc processing, so project-local .nvim.lua files were not sourced even when users enabled the exrc option. Load the generated config through a forced VIMINIT instead. This preserves the current wrapped-config precedence while allowing Neovim's normal exrc startup path to run for trusted project config files. When impureRtp is disabled, clear XDG_CONFIG_DIRS and VIM from an early --cmd before sysinit is checked, then restore them before loading the generated config so runtime code and child processes see the original environment. Keep the saved startup environment in a short-lived global Lua table shared between the --cmd and VIMINIT chunks, then clear it after restore. Add a modules-output regression test that checks the wrapper args no longer include -u, verifies VIMINIT is set, confirms trusted .nvim.lua is sourced, blocks sysinit.vim, verifies XDG_CONFIG_DIRS and VIM are restored, and ensures the saved startup state is cleared. Closes #3506