fix task cache recursion into .pixi folder

[wolfv]

@0xbe7a this is an attempt to fix the issue that broken symlinks are currently tripping up the task cache.

However I looked at your original PR and if I understand correctly you want to explicitly look inside the .pixi folder for some files to be cached, correct?

The usage of the whole ignore crate is unfortunately a little cumbersome because we usually want/expect the inverse logic where our rules are supposed to only recurse into folders that are selected by some globs and not search through everything as is currently done. I need to look into how that could be supported.

Besides, we can catch the error and skip over broken symlinks in the Err(e) branch of the walker.

[wolfv]

I pushed additional changes that ignore any broken symlink. I think we should either make a decision really quickly or revert the follow_symlinks change and rethink how we go about this.

[0xbe7a]

In the end, I found that using a PyPI dependency instead of a post-install task worked great, so I’m fine with reverting the change for now.