| commit | ab2fba0868860e610619f885031217d9cc63097a | [log] [tgz] |
|---|---|---|
| author | Phillip Wood <phillip.wood@dunelm.org.uk> | Wed Jan 26 13:05:39 2022 +0000 |
| committer | Junio C Hamano <gitster@pobox.com> | Wed Jan 26 12:08:52 2022 -0800 |
| tree | 3fa8f9c53d7ee91aa027abdff8b6667284ec9ba0 | |
| parent | 69f4c23009ee30faeb61a831f4265791c945783e [diff] |
rebase: do not remove untracked files on checkout
If "git rebase [--apply|--merge] <upstream> <branch>" detects that
<upstream> is an ancestor of <branch> then it will fast-forward and
checkout <branch>. Normally a checkout or picking a commit during a
rebase will refuse to overwrite untracked files, however rebase does
overwrite untracked files when checking out <branch>.
The fix is to only set reset in `unpack_tree_opts` if flags contains
`RESET_HEAD_HARD`. t5403 may seem like an odd home for the new test
but it will be extended in the next commit to check that the
post-checkout hook is not run when the checkout fails.
The test for `!detach_head` dates back to the
original implementation of reset_head() in
ac7f467fef ("builtin/rebase: support running "git rebase <upstream>"",
2018-08-07) and was correct until e65123a71d
("builtin rebase: support `git rebase <upstream> <switch-to>`",
2018-09-04) started using reset_head() to checkout <switch-to> when
fast-forwarding.
Note that 480d3d6bf9 ("Change unpack_trees' 'reset' flag into an
enum", 2021-09-27) also fixes this bug as it changes reset_head() to
never remove untracked files. I think this fix is still worthwhile as
it makes it clear that the same settings are used for detached and
non-detached checkouts.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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