bug#65666: Lockfiles break package-vc-install-from-checkout

[Joseph Turner]

Philip Kaludercic <philipk@posteo.net> writes:

> LGTM, but I wonder if there is a better way to detect lockfiles
> specifically?  If not, I can imagine that just using `file-exists-p'
> would a too broad check, in the sense that it could make it difficult to
> find other issues?

We could use a regex like

(unless (string-match-p (rx string-start ".#") file))