bug#39452: [PATCH] vc-git-state fails for filenames with wildcards

[Dmitry Gutov]

On 14.02.2020 17:45, Eli Zaretskii wrote:
> I won't argue.  I just wanted to point out that using Git signatures
> internally might get in the way, whereas environment variables and
> command-line switches are free from that disadvantage.

Um, I think they're about the same in the level of convenience for us to 
be able to disable either: we can add a global var which would affect 
whether specs are interpreted literally.

If anything, approach #1 is slightly easier if we wanted to support 
opting out of literal-quoting the specs at the level of VC backend 
actions: certain action implementations can simply avoid calling the 
proposed functions (like vc-git--literal-pathspec). But then, I'm not 
sure that we want this capability at exactly that abstraction level.