[PATCH v4 0/5] Convert some stash functionality to a builtin

[Joel Teichroeb <joel@teichroeb.net>]

I've been working on converting all of git stash to be a
builtin, however it's hard to get it all working at once with
limited time, so I've moved around half of it to a new
stash--helper builtin and called these functions from the shell
script. Once this is stabalized, it should be easier to convert
the rest of the commands one at a time without breaking
anything.

I've sent most of this code before, but that was targetting a
full replacement of stash. The code is overall the same, but
with some code review changes and updates for internal api
changes.

Since there seems to be interest from GSOC students who want to
work on converting builtins, I figured I should finish what I
have that works now so they could build on top of it.

The code is based on next as write_cache_as_tree was changed to
take an object ID. It can easily be rebase on master by changing
the two calls to write_cache_as_tree to use tha hash.

The only comments on v3 were minor, so I feel this should be
ready to go in soon.

Previous threads:
v1: https://public-inbox.org/git/20180325173916.GE10909@hank/T/
v2: https://public-inbox.org/git/20180326011426.19159-1-joel@teichroeb.net/
v3: https://public-inbox.org/git/20180327054432.26419-1-joel@teichroeb.net/

Changes from v3:
 - Fix the Windows build
 - Fix a use after free in the error handling

Joel Teichroeb (5):
  stash: improve option parsing test coverage
  stash: convert apply to builtin
  stash: convert drop and clear to builtin
  stash: convert branch to builtin
  stash: convert pop to builtin

 .gitignore              |   1 +
 Makefile                |   1 +
 builtin.h               |   1 +
 builtin/stash--helper.c | 633 ++++++++++++++++++++++++++++++++++++++++++++++++
 git-stash.sh            | 136 +----------
 git.c                   |   1 +
 t/t3903-stash.sh        |  16 ++
 7 files changed, 661 insertions(+), 128 deletions(-)
 create mode 100644 builtin/stash--helper.c

-- 
2.16.2