[PATCH 0/8] Avoid removing the current working directory, even if it becomes empty

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Traditionally, if folks run git commands such as checkout or rebase from a
subdirectory, that git command could remove their current working directory
and result in subsequent git and non-git commands either getting confused or
printing messages that confuse the user (e.g. "fatal: Unable to read current
working directory: No such file or directory"). We already refuse to remove
directories that have untracked files within them[1], preferring to show an
error; with this series, we tweak that rule a bit to also refuse to remove
the current working directory even if it has no untracked files within it.

Peff endorsed the idea behind this series at [2] and even pointed out a
corner case that he suggested (and I agree) would probably be more
problematic to attempt to address than to leave be.

This series has a minor textual conflict with so/stash-staged (in next),
because both series add a new parameter to the do_push_stash() function. The
correct resolution is simple -- just to take both new parameters. However,
let me know if you'd rather I rebased onto so/stash-staged.

(Sorry for the delay; I know I promised this months ago in response to [3],
but it was blocked by some preliminary series and then by my absence during
a migration at $DAYJOB).

[1] well, with a few exceptions; see
https://lore.kernel.org/git/pull.1036.v3.git.1632760428.gitgitgadget@xxxxxxxxx/
[2] https://lore.kernel.org/git/YS8eEtwQvF7TaLCb@xxxxxxxxxxxxxxxxxxxxxxx/
[3]
https://lore.kernel.org/git/c0557284-8f82-76cc-8c47-0b1bc9f2ce5a@xxxxxxxxx/

Elijah Newren (8):
  t2501: add various tests for removing the current working directory
  repository, setup: introduce the_cwd
  unpack-trees: refuse to remove the current working directory
  unpack-trees: add special cwd handling
  symlinks: do not include current working directory in dir removal
  clean: do not attempt to remove current working directory
  stash: do not attempt to remove current working directory
  dir: avoid removing the current working directory

 builtin/clean.c      |  29 +++--
 builtin/stash.c      |  13 ++-
 dir.c                |  11 +-
 repository.c         |   1 +
 repository.h         |   1 +
 setup.c              |   2 +
 symlinks.c           |  12 +-
 t/t2501-cwd-empty.sh | 255 +++++++++++++++++++++++++++++++++++++++++++
 unpack-trees.c       |  28 ++++-
 unpack-trees.h       |   1 +
 10 files changed, 329 insertions(+), 24 deletions(-)
 create mode 100755 t/t2501-cwd-empty.sh


base-commit: 88d915a634b449147855041d44875322de2b286d
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1140%2Fnewren%2Fcwd_removal-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1140/newren/cwd_removal-v1
Pull-Request: https://github.com/git/git/pull/1140
-- 
gitgitgadget



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