[RFC 0/3] support negative refspecs

From: Jacob Keller <jacob.keller@gmail.com>

This is more or less just a port of what Peff already had published a few years ago at https://lore.kernel.org/git/20140125013433.GA22336@sigill.intra.peff.net/

I cleaned some things up and made sure the tests pass, but haven't yet added any new tests.

I think the overal design makes sense: applying positive first and then negative. This appears to be how negative pathspecs work at least as far as I could tell with a few trials.

The first two patches are cleanup/fixups that I think could go separately if everyone agrees. The third is the meat of the idea, and where most of the work needs to be done.

Jacob Keller (3):
  refspec: fix documentation referring to refspec_item
  refspec: make sure stack refspec_item variables are zeroed
  refspec: add support for negative refspecs

 builtin/fetch.c  |  3 +++
 builtin/remote.c |  1 +
 refspec.c        | 30 +++++++++++++++++++++++++++++
 refspec.h        | 29 +++++++++++++++-------------
 remote.c         | 49 +++++++++++++++++++++++++++++++++++++++++++++++-
 remote.h         |  9 ++++++++-
 transport.c      |  1 +
 7 files changed, 107 insertions(+), 15 deletions(-)

base-commit: 878e727637ec5815ccb3301eb994a54df95b21b8