feat(#2938): add default filesystem_watchers.ignore_dirs = { "/.ccls-cache", "/build", "/node_modules", "/target", }

[alex-courtis]

fixes #2938

@gegoune this is technically a breaking change, however this has affected too many users. Could it be a bugfix or minor release?

Prior art: junegunn/fzf#3649

[gegoune]

Can't see why someone would not want to ignore that directory. We can go ever further and add more well known directories/files like this. It's also added .gitignoren when creating new project if I am not mistaken. (Feat is fine, or fix if you prefer, makes no difference to me.)

[alex-courtis]

It's also added .gitignoren when creating new project if I am not mistaken.

It should be, but I've seen people not doing it.

We can go ever further and add more well known directories/files like this.

How about:
build meson, clang etc.
target java, cargo; fzf recommends but doesn't default
.ccls-cache c language server

[alex-courtis]

Ignoring .gitignore would be great, however you need to build a compiler/matcher and there's no good library for it.