Previously, the tested plugin appeared in `rtp` under two paths:
- `/nix/store/<hash>-vimPlugins-my-plugin` from `$out`
- `/build/.local/share/nvim/site/pack/nvimRequireCheckHook/opt/testPlugin`
from `packadd testPlugin`
This was causing problems for plugins that use
`vim.api.nvim_get_runtime_file()`. For example, plugins that use
`blink.lib` to load rust modules fail the require check because
`blink.lib` uses this function to locate rust shared libraries and
raises an error when duplicate libraries are found.
The plugin is already loaded via `packadd testPlugin`, so adding `$out`
to `rtp` is unnecessary. Remove `$out` from `rtp` to avoid duplicate
runtime entries, and add a regression test to ensure the plugin appears
in `rtp` only once.
Co-authored-by: Austin Horstman <khaneliman12@gmail.com>
stefan
bb1e73bf6f