[PATCH v12 00/26] Convert "git stash" to C builtin

Hello,

This is a new iteration of git-stash which also takes
sd/stash-wo-user-name into account. I cherry-picked
some of dscho's commits (from [1]) to keep the scripted
version of `git stash` as `git-legacy-stash`.

Thank you for your suggestions!

Best,
Paul

[1]
https://github.com/dscho/git

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

Johannes Schindelin (4):
  ident: add the ability to provide a "fallback identity"
  stash: add back the original, scripted `git stash`
  stash: optionally use the scripted version again
  tests: add a special setup where stash.useBuiltin is off

Paul-Sebastian Ungureanu (17):
  sha1-name.c: add `get_oidf()` which acts like `get_oid()`
  strbuf.c: add `strbuf_join_argv()`
  strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()`
  t3903: modernize style
  stash: rename test cases to be more descriptive
  stash: add tests for `git stash show` config
  stash: mention options in `show` synopsis
  stash: convert list to builtin
  stash: convert show to builtin
  stash: convert store to builtin
  stash: convert create to builtin
  stash: convert push to builtin
  stash: make push -q quiet
  stash: convert save to builtin
  stash: optimize `get_untracked_files()` and `check_changes()`
  stash: replace all `write-tree` child processes with API calls
  stash: convert `stash--helper.c` into `stash.c`

 .gitignore                          |    1 +
 Documentation/git-stash.txt         |    4 +-
 Makefile                            |    3 +-
 builtin.h                           |    1 +
 builtin/stash.c                     | 1636 +++++++++++++++++++++++++++
 cache.h                             |    2 +
 git-stash.sh => git-legacy-stash.sh |   34 +-
 git-sh-setup.sh                     |    1 +
 git.c                               |    6 +
 ident.c                             |   20 +
 sha1-name.c                         |   19 +
 strbuf.c                            |   51 +
 strbuf.h                            |   16 +
 t/README                            |    4 +
 t/t3903-stash.sh                    |  192 ++--
 t/t3907-stash-show-config.sh        |   83 ++
 16 files changed, 2001 insertions(+), 72 deletions(-)
 create mode 100644 builtin/stash.c
 rename git-stash.sh => git-legacy-stash.sh (97%)
 create mode 100755 t/t3907-stash-show-config.sh

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2.20.1.441.g764a526393