fix: shorten package.cpath

[phanen]

Maybe helpful to reduce a few nanoseconds in require
Work on my linux. Need confirmation if this work well on other platform.

[saghen]

Looks interesting, but can you provide benchmarks to demonstrate the performance improvement?

[phanen]

Ok, I will do when I have time. I'm not sure how to benchmark this tbh, maybe use ebpf you can see this path is touched on each require.

sudo bpftrace -e 'tracepoint:syscalls:sys_enter_openat /comm == 
"nvim"/ { printf("%s %s\n", comm, str(args.filename)); }' | rg 'blink/cmp/f
uzzy/rust'

[saghen]

You could probably wrap require with a timer. Fyi, I do like the existing cpath solution because users/distros can override it to load from any path they please. And it's the standard flow for loading libraries in Lua afaict.

[phanen]

And it's the standard flow for loading libraries in Lua afaict.

Yes. package.cpath is searched by builtin loader by default.

maybe override package.preload is not a good idea. I see package.cpath is used in source code.

https://github.com/Saghen/blink.cmp/blob/5e8165bef3134b2cf95e4a5fd55042bca8753836/lua/blink/cmp/sources/buffer/parser.lua#L49-L52

https://github.com/Saghen/blink.cmp/blob/138314a7bda2d987822b40d824f98624f2c5cd37/lua/blink/cmp/fuzzy/init.lua#L66-L69

indeed it will break some user load system/external lib, maybe nix user.

[phanen]

maybe can require once, then search manualy on failure again. but maybe not worth the efforts