Re: [PATCH] git-archive: document CWD effect

["René Scharfe" <rene.scharfe@lsrfire.ath.cx>]

Junio C Hamano schrieb:
> While the updated description reflects what the command does
> more accurately, I am not sure if it is a desired behaviour.
> For one thing, --format=tar (by the way, maybe we would want to
> make this the default when none is specified?) adds the comment
> that is readable by get-tar-commit-id that claims the tarball
> contains the named commit, giving a false impression that it is
> the whole thing.

It marks the archive as being _created_ from this specific commit, not
necessarily as containing all of it.  Perhaps this should be noted in
the documentation..

Making '--format=tar' the default is a good idea.  I doubt we'll see the
addition of a new archive format -- that deserves to be the default one
instead of tar -- soon.

> Since people who _really_ want a subtree can
> just say "git archive --format=tar HEAD:Documentation", I
> suspect we may be better off not doing "current directory only"
> by default.  This changes the behaviour, but (1) it affects only
> people who run from a subdirectory, (2) it is counterintuitive
> that your location in the working tree matters when you say "I
> want a tarball of that commit", and (3) it is an undocumented
> behaviour anyway.

I agree with (1) and (3), meaning that we are free to change the
behaviour.  I don't agree with (2), though.  I'd find it strange if
changing the working directory wouldn't change the archive contents.

We should keep consistency with the rest of git here.  Since git-archive
is just a fancy git-ls-tree, I think we should mirror its behaviour with
respect to the working directory.  (Which is what the current code does.
 Modulo bugs, of course.)

René