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As part of an ongoing effort to make rebase have more uniform behavior,
modify the merge backend to behave like the interactive one, by
re-implementing it on top of the latter.
Interactive rebases are implemented in terms of cherry-pick rather than
the merge-recursive builtin, but cherry-pick also calls into the
recursive merge machinery by default and can accept special merge
strategies and/or special strategy options. As such, there really is
not any need for having both git-rebase--merge and
git-rebase--interactive anymore. Delete git-rebase--merge.sh and
instead implement it in builtin/rebase.c.
This results in a few deliberate but small user-visible changes:
* The progress output is modified (see t3406 and t3420 for examples)
* A few known test failures are now fixed (see t3421)
* bash-prompt during a rebase --merge is now REBASE-i instead of
REBASE-m. Reason: The prompt is a reflection of the backend in use;
this allows users to report an issue to the git mailing list with
the appropriate backend information, and allows advanced users to
know where to search for relevant control files. (see t9903)
testcase modification notes:
t3406: --interactive and --merge had slightly different progress output
while running; adjust a test to match the new expectation
t3420: these test precise output while running, but rebase--am,
rebase--merge, and rebase--interactive all were built on very
different commands (am, merge-recursive, cherry-pick), so the
tests expected different output for each type. Now we expect
--merge and --interactive to have the same output.
t3421: --interactive fixes some bugs in --merge! Wahoo!
t9903: --merge uses the interactive backend so the prompt expected is
now REBASE-i.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rebase --autostash" did not correctly re-attach the HEAD at times.
* js/rebase-autostash-detach-fix:
built-in rebase --autostash: leave the current branch alone if possible
built-in rebase: demonstrate regression with --autostash
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When we converted a `git reset --hard` call in the original Unix shell
script to built-in code, we asked to reset the worktree and the index
and explicitly *not* to detach the HEAD. By mistake, though, we still
did. Let's fix this.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An unnamed colleague of Ævar Arnfjörð Bjarmason reported a breakage
where a `pull --rebase` (which did not really need to do anything but
stash, see that nothing was changed, and apply the stash again) also
detached the HEAD.
This patch adds a minimal reproducer for this regression.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rebase" that has recently been rewritten in C had a few issues
in its "--autstash" feature, which have been corrected.
* js/rebase-autostash-fix:
rebase --autostash: fix issue with dirty submodules
rebase --autostash: demonstrate a problem with dirty submodules
rebase (autostash): use an explicit OID to apply the stash
rebase (autostash): store the full OID in <state-dir>/autostash
rebase (autostash): avoid duplicate call to state_dir_path()
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Since we cannot stash dirty submodules, there is no use in requiring
them to be clean (or stash them when they are not).
This brings the built-in rebase in line with the previous, scripted
version, which also did not care about dirty submodules (but it was
admittedly not very easy to figure that out).
This fixes https://github.com/git-for-windows/git/issues/1820
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It has been reported that dirty submodules cause problems with the
built-in rebase when it is asked to autostash. The symptom is:
fatal: Unexpected stash response: ''
This patch adds a regression test that demonstrates that bug.
Original report: https://github.com/git-for-windows/git/issues/1820
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Several tests in 't3420-rebase-autostash.sh' start various rebase
processes that are expected to fail because of merge conflicts. These
tests then run '! grep' to ensure that the autostash feature did its
job, and the dirty contents of a file is gone. However, due to the
test repo's history and the choice of upstream branch that file
shouldn't exist in the conflicted state at all. Consequently, this
'grep' doesn't fail as expected, because it can't find the dirty
content, but it fails because it can't open the file.
Tighten this check by using 'test_path_is_missing' instead, thereby
avoiding unexpected errors from 'grep' as well.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Newly added tests to t3420 in this series prepare expected
human-readable output from "git rebase -i" and then compare the
actual output with it. As the output from the command is designed
to go through i18n/l10n, we need to use test_i18ncmp to tell
GETTEXT_POISON build that it is OK the output does not match.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Check the console output when using --autostash and the stash does not
apply is what we expect. The test is quite strict but should catch any
changes to the console output from the various rebase flavors.
Thanks-to: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Check the console output when using --autostash and the stash applies
cleanly is what we expect. The test is quite strict but should catch
any changes to the console output from the various rebase flavors.
Thanks-to: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we abort an interactive rebase we do so by calling
`die_abort`, which cleans up after us by removing the rebase
state directory. If the user has requested to use the autostash
feature, though, the state directory may also contain a reference
to the autostash, which will now be deleted.
Fix the issue by trying to re-apply the autostash in `die_abort`.
This will also handle the case where the autostash does not apply
cleanly anymore by recording it in a user-visible stash.
Reported-by: Daniel Hahler <git@thequod.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is documented as an option but we don't actually accept it.
Support it so that it is possible to override the "rebase.autostash"
config variable.
Reported-by: Daniel Hahler <genml+git-2014@thequod.de>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the following case
$ git rebase master
Current branch autostash-fix is up to date.
the autostash is not applied automatically, because this codepath
forgets to call finish_rebase(). Fix this. Also add a test to guard
against regressions.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the following case
$ git rebase master
Fast-forwarded autostash-fix to master.
The autostash is not applied automatically, because this codepath
forgets to call finish_rebase(). Fix this. Also add a test to guard
against regressions.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This new feature allows a rebase to be executed on a dirty worktree or
index. It works by creating a temporary "dangling merge commit" out
of the worktree and index changes (via 'git stash create'), and
automatically applying it after a successful rebase or abort.
rebase stores the SHA-1 hex of the temporary merge commit, along with
the rest of the rebase state, in either
.git/{rebase-merge,rebase-apply}/autostash depending on the kind of
rebase. Since $state_dir is automatically removed at the end of a
successful rebase or abort, so is the autostash.
The advantage of this approach is that we do not affect the normal
stash's reflogs, making the autostash invisible to the end-user. This
means that you can use 'git stash' during a rebase as usual.
When the autostash application results in a conflict, we push
$state_dir/autostash onto the normal stash and remove $state_dir
ending the rebase. The user can inspect the stash, and pop or drop at
any time.
Most significantly, this feature means that a caller like pull (with
pull.rebase set to true) can easily be patched to remove the
require_clean_work_tree restriction.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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