Re: [Gnu-arch-users] Re: designing how to kill pristine trees

[Florian Weimer]

Tom Lord wrote:


> The "lifetime management" problem -- i.e., "when to discard and
> reclaim space" -- is insoluable absent a copy in {arch}.

There are some approximations.  You could put a symlink into the cache
which points to some unique file the project directory.  If all the
relevant  project trees go away and the symlinks are invalid, you can
remove the cached copy.

This won't give you all the benefits of in-tree pristine copies (for
example, cached copies don't always survive an mv of the project tree),
but it might be a reasonable approximation.