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This reverts commit 5d9324e0f4210bb7d52bcb79efe3935703083f72, reversing
changes made to c58ae96fc4bb11916b62a96940bb70bb85ea5992.
The topic turns out to be too buggy for real use.
cf. <f2fe7437-8a48-3315-4d3f-8d51fe4bb8f1@gmail.com>
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"git rebase --signoff" stopped working when the command was written
in C, which has been corrected.
* en/rebase-signoff-fix:
rebase: fix saving of --signoff state for am-based rebases
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This was an error introduced in the conversion from shell in commit
21853626eac5 ("built-in rebase: call `git am` directly", 2019-01-18),
which was noticed by a random browsing of the code.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rebase" did not work well when format.useAutoBase
configuration variable is set, which has been corrected.
* dl/rebase-with-autobase:
rebase: fix format.useAutoBase breakage
format-patch: teach --no-base
t4014: use test_config()
format-patch: fix indentation
t3400: demonstrate failure with format.useAutoBase
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Reduce unnecessary reading of state variables back from the disk
during sequencer operation.
* ag/sequencer-todo-updates:
sequencer: directly call pick_commits() from complete_action()
rebase: fill `squash_onto' in get_replay_opts()
sequencer: move the code writing total_nr on the disk to a new function
sequencer: update `done_nr' when skipping commands in a todo list
sequencer: update `total_nr' when adding an item to a todo list
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"git rebase -i" learned a few options that are known by "git
rebase" proper.
* ra/rebase-i-more-options:
rebase -i: finishing touches to --reset-author-date
rebase: add --reset-author-date
rebase -i: support --ignore-date
sequencer: rename amend_author to author_to_rename
rebase -i: support --committer-date-is-author-date
sequencer: allow callers of read_author_script() to ignore fields
rebase -i: add --ignore-whitespace flag
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With `format.useAutoBase = true`, running rebase resulted in an
error:
fatal: failed to get upstream, if you want to record base commit automatically,
please use git branch --set-upstream-to to track a remote branch.
Or you could specify base commit by --base=<base-commit-id> manually
error:
git encountered an error while preparing the patches to replay
these revisions:
ede2467cdedc63784887b587a61c36b7850ebfac..d8f581194799ae29bf5fa72a98cbae98a1198b12
As a result, git cannot rebase them.
Fix this by always passing `--no-base` to format-patch from rebase so
that the effect of `format.useAutoBase` is negated.
Reported-by: Christian Biesinger <cbiesinger@google.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Clarify the way the `--reset-author-date` option is described,
and mark its usage string translatable.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When sequencer_continue() is called by complete_action(), `opts' has
been filled by get_replay_opts(). Currently, it does not initialise the
`squash_onto' field (used by the `--root' mode), only
read_populate_opts() does. It’s not a problem yet since
sequencer_continue() calls it before pick_commits(), but it would lead
to incorrect results once complete_action() is modified to call
pick_commits() directly.
Let’s change that.
Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rebase --preserve-merges" has been marked as deprecated; this
release stops advertising it in the "git rebase -h" output.
* js/rebase-deprecate-preserve-merges:
rebase: hide --preserve-merges option
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The previous commit introduced --ignore-date flag to interactive
rebase, but the name is actually very vague in context of rebase -i
since there are two dates we can work with. Add an alias to convey
the precise purpose.
Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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rebase am already has this flag to "lie" about the author date
by changing it to the committer (current) date. Let's add the same
for interactive machinery.
Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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rebase am already has this flag to "lie" about the committer date
by changing it to the author date. Let's add the same for
interactive machinery.
Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two backends available for rebasing, viz, the am and the
interactive. Naturally, there shall be some features that are
implemented in one but not in the other. One such flag is
--ignore-whitespace which indicates merge mechanism to treat lines
with only whitespace changes as unchanged. Wire the interactive
rebase to also understand the --ignore-whitespace flag by
translating it to -Xignore-space-change.
Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since --preserve-merges has been deprecated in favour of
--rebase-merges, mark this option as hidden so it no longer shows up in
the usage and completions.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rebase --autostash <upstream> <branch>", when <branch> is
different from the current branch, incorrectly moved the tip of the
current branch, which has been corrected.
* bw/rebase-autostash-keep-current-branch:
builtin/rebase.c: Remove pointless message
builtin/rebase.c: make sure the active branch isn't moved when autostashing
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"git rebase --keep-base <upstream>" tries to find the original base
of the topic being rebased and rebase on top of that same base,
which is useful when running the "git rebase -i" (and its limited
variant "git rebase -x").
The command also has learned to fast-forward in more cases where it
can instead of replaying to recreate identical commits.
* dl/rebase-i-keep-base:
rebase: teach rebase --keep-base
rebase tests: test linear branch topology
rebase: fast-forward --fork-point in more cases
rebase: fast-forward --onto in more cases
rebase: refactor can_fast_forward into goto tower
t3432: test for --no-ff's interaction with fast-forward
t3432: distinguish "noop-same" v.s. "work-same" in "same head" tests
t3432: test rebase fast-forward behavior
t3431: add rebase --fork-point tests
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"git rebase --rebase-merges" learned to drive different merge
strategies and pass strategy specific options to them.
* js/rebase-r-strategy:
t3427: accelerate this test by using fast-export and fast-import
rebase -r: do not (re-)generate root commits with `--root` *and* `--onto`
t3418: test `rebase -r` with merge strategies
t/lib-rebase: prepare for testing `git rebase --rebase-merges`
rebase -r: support merge strategies other than `recursive`
t3427: fix another incorrect assumption
t3427: accommodate for the `rebase --merge` backend having been replaced
t3427: fix erroneous assumption
t3427: condense the unnecessarily repetitive test cases into three
t3427: move the `filter-branch` invocation into the `setup` case
t3427: simplify the `setup` test case significantly
t3427: add a clarifying comment
rebase: fold git-rebase--common into the -p backend
sequencer: the `am` and `rebase--interactive` scripts are gone
.gitignore: there is no longer a built-in `git-rebase--interactive`
t3400: stop referring to the scripted rebase
Drop unused git-rebase--am.sh
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When doing 'git rebase --autostash <upstream> <master>' with a dirty worktree
a 'HEAD is now at ...' message is emitted, which is pointless as it refers to
the old active branch which isn't actually moved.
This commit removes the 'HEAD is now at...' message.
Signed-off-by: Ben Wijen <ben@wijen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Consider the following scenario:
git checkout not-the-master
work work work
git rebase --autostash upstream master
Here 'rebase --autostash <upstream> <branch>' incorrectly moves the
active branch (not-the-master) to master (before the rebase).
The expected behavior: (58794775:/git-rebase.sh:526)
AUTOSTASH=$(git stash create autostash)
git reset --hard
git checkout master
git rebase upstream
git stash apply $AUTOSTASH
The actual behavior: (6defce2b:/builtin/rebase.c:1062)
AUTOSTASH=$(git stash create autostash)
git reset --hard master
git checkout master
git rebase upstream
git stash apply $AUTOSTASH
This commit reinstates the 'legacy script' behavior as introduced with
58794775: rebase: implement --[no-]autostash and rebase.autostash
Signed-off-by: Ben Wijen <ben@wijen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A common scenario is if a user is working on a topic branch and they
wish to make some changes to intermediate commits or autosquash, they
would run something such as
git rebase -i --onto master... master
in order to preserve the merge base. This is useful when contributing a
patch series to the Git mailing list, one often starts on top of the
current 'master'. While developing the patches, 'master' is also
developed further and it is sometimes not the best idea to keep rebasing
on top of 'master', but to keep the base commit as-is.
In addition to this, a user wishing to test individual commits in a
topic branch without changing anything may run
git rebase -x ./test.sh master... master
Since rebasing onto the merge base of the branch and the upstream is
such a common case, introduce the --keep-base option as a shortcut.
This allows us to rewrite the above as
git rebase -i --keep-base master
and
git rebase -x ./test.sh --keep-base master
respectively.
Add tests to ensure --keep-base works correctly in the normal case and
fails when there are multiple merge bases, both in regular and
interactive mode. Also, test to make sure conflicting options cause
rebase to fail. While we're adding test cases, add a missing
set_fake_editor call to 'rebase -i --onto master...side'.
While we're documenting the --keep-base option, change an instance of
"merge-base" to "merge base", which is the consistent spelling.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, when we rebased with a --fork-point invocation where the
fork-point wasn't empty, we would be setting options.restrict_revision.
The fast-forward logic would automatically declare that the rebase was
not fast-forwardable if it was set. However, this was painting with a
very broad brush.
Refine the logic so that we can fast-forward in the case where the
restricted revision is equal to the merge base, since we stop rebasing
at the merge base anyway.
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, when we had the following graph,
A---B---C (master)
\
D (side)
running 'git rebase --onto master... master side' would result in D
being always rebased, no matter what. However, the desired behavior is
that rebase should notice that this is fast-forwardable and do that
instead.
Add detection to `can_fast_forward` so that this case can be detected
and a fast-forward will be performed. First of all, rewrite the function
to use gotos which simplifies the logic. Next, since the
options.upstream &&
!oidcmp(&options.upstream->object.oid, &options.onto->object.oid)
conditions were removed in `cmd_rebase`, we reintroduce a substitute in
`can_fast_forward`. In particular, checking the merge bases of
`upstream` and `head` fixes a failing case in t3416.
The abbreviated graph for t3416 is as follows:
F---G topic
/
A---B---C---D---E master
and the failing command was
git rebase --onto master...topic F topic
Before, Git would see that there was one merge base (C), and the merge
and onto were the same so it would incorrectly return 1, indicating that
we could fast-forward. This would cause the rebased graph to be 'ABCFG'
when we were expecting 'ABCG'.
With the additional logic, we detect that upstream and head's merge base
is F. Since onto isn't F, it means we're not rebasing the full set of
commits from master..topic. Since we're excluding some commits, a
fast-forward cannot be performed and so we correctly return 0.
Add '-f' to test cases that failed as a result of this change because
they were not expecting a fast-forward so that a rebase is forced.
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, can_fast_forward was written with an if-else statement. However,
in the future, we may be adding more termination cases which would lead
to deeply nested if statements.
Refactor to use a goto tower so that future cases can be easily
inserted.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When rebasing a complete commit history onto a given commit, it is
pretty obvious that the root commits should be rebased on top of said
given commit.
To test this, let's kill two birds with one stone and add a test case to
t3427-rebase-subtree.sh that not only demonstrates that this works, but
also that `git rebase -r` works with merge strategies now.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We already support merge strategies in the sequencer, but only for
`pick` commands.
With this commit, we now also support them in `merge` commands. The
approach is simple: if any merge strategy option is specified, or if any
merge strategy other than `recursive` is specified, we simply spawn the
`git merge` command. Otherwise, we handle the merge in-process just as
before.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The only remaining scripted part of `git rebase` is the
`--preserve-merges` backend. Meaning: there is little reason to keep the
"library of common rebase functions" as a separate file.
While moving the functions to `git-rebase--preserve-merges.sh`, we also
drop the `move_to_original_branch` function that is no longer used.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 21853626ea (built-in rebase: call `git am` directly, 2019-01-18),
the built-in rebase already uses the built-in `git am` directly.
Now that d03ebd411c (rebase: remove the rebase.useBuiltin setting,
2019-03-18) even removed the scripted rebase, there is no longer any
user of `git-rebase--am.sh`, so let's just remove it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A few leftover cleanup to "git rebase" in C.
* js/rebase-cleanup:
git: mark cmd_rebase as requiring a worktree
rebase: fix white-space
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The commit-graph file is now part of the "files that the runtime
may keep open file descriptors on, all of which would need to be
closed when done with the object store", and the file descriptor to
an existing commit-graph file now is closed before "gc" finalizes a
new instance to replace it.
* ds/close-object-store:
packfile: rename close_all_packs to close_object_store
packfile: close commit-graph in close_all_packs
commit-graph: use raw_object_store when closing
commit-graph: extract write_commit_graph_file()
commit-graph: extract copy_oids_to_commits()
commit-graph: extract count_distinct_commits()
commit-graph: extract fill_oids_from_all_packs()
commit-graph: extract fill_oids_from_commit_hex()
commit-graph: extract fill_oids_from_packs()
commit-graph: create write_commit_graph_context
commit-graph: remove Future Work section
commit-graph: collapse parameters into flags
commit-graph: return with errors during write
commit-graph: fix the_repository reference
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"git rebase --abort" used to leave refs/rewritten/ when concluding
"git rebase -r", which has been corrected.
* pw/rebase-abort-clean-rewritten:
rebase --abort/--quit: cleanup refs/rewritten
sequencer: return errors from sequencer_remove_state()
rebase: warn if state directory cannot be removed
rebase: fix a memory leak
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The configuration variable rebase.rescheduleFailedExec should be
effective only while running an interactive rebase and should not
affect anything when running an non-interactive one, which was not
the case. This has been corrected.
* js/rebase-reschedule-applies-only-to-interactive:
rebase --am: ignore rebase.rescheduleFailedExec
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We skipped marking the "rebase" built-in as requiring a .git/ directory
and a worktree only to allow to spawn the scripted version of `git
rebase`.
Now that we no longer have that escape hatch, we can change that to the
canonical form.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This trailing space was inadvertently introduced in 9fbcc3d203 (Merge
branch 'js/rebase-orig-head-fix', 2019-03-20).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The tree-walk API learned to pass an in-core repository
instance throughout more codepaths.
* nd/tree-walk-with-repo:
t7814: do not generate same commits in different repos
Use the right 'struct repository' instead of the_repository
match-trees.c: remove the_repo from shift_tree*()
tree-walk.c: remove the_repo from get_tree_entry_follow_symlinks()
tree-walk.c: remove the_repo from get_tree_entry()
tree-walk.c: remove the_repo from fill_tree_descriptor()
sha1-file.c: remove the_repo from read_object_with_reference()
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The configuration variable rebase.rescheduleFailedExec should be
effective only while running an interactive rebase and should not
affect anything when running an non-interactive one, which was not
the case. This has been corrected.
* js/rebase-reschedule-applies-only-to-interactive:
rebase --am: ignore rebase.rescheduleFailedExec
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Two new commands "git switch" and "git restore" are introduced to
split "checking out a branch to work on advancing its history" and
"checking out paths out of the index and/or a tree-ish to work on
advancing the current history" out of the single "git checkout"
command.
* nd/switch-and-restore: (46 commits)
completion: disable dwim on "git switch -d"
switch: allow to switch in the middle of bisect
t2027: use test_must_be_empty
Declare both git-switch and git-restore experimental
help: move git-diff and git-reset to different groups
doc: promote "git restore"
user-manual.txt: prefer 'merge --abort' over 'reset --hard'
completion: support restore
t: add tests for restore
restore: support --patch
restore: replace --force with --ignore-unmerged
restore: default to --source=HEAD when only --staged is specified
restore: reject invalid combinations with --staged
restore: add --worktree and --staged
checkout: factor out worktree checkout code
restore: disable overlay mode by default
restore: make pathspec mandatory
restore: take tree-ish from --source option instead
checkout: split part of it to new command 'restore'
doc: promote "git switch"
...
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"git rebase --abort" used to leave refs/rewritten/ when concluding
"git rebase -r", which has been corrected.
* pw/rebase-abort-clean-rewritten:
rebase --abort/--quit: cleanup refs/rewritten
sequencer: return errors from sequencer_remove_state()
rebase: warn if state directory cannot be removed
rebase: fix a memory leak
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The commit-graph file is now part of the "files that the runtime
may keep open file descriptors on, all of which would need to be
closed when done with the object store", and the file descriptor to
an existing commit-graph file now is closed before "gc" finalizes a
new instance to replace it.
* ds/close-object-store:
packfile: rename close_all_packs to close_object_store
packfile: close commit-graph in close_all_packs
commit-graph: use raw_object_store when closing
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The `exec` command is specific to the interactive backend, therefore it
does not make sense for non-interactive rebases to heed that config
setting.
We still want to error out if a non-interactive rebase is started with
`--reschedule-failed-exec`, of course.
Reported by Vas Sudanagunta via:
https://github.com/git/git/commit/969de3ff0e0#commitcomment-33257187
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While at there, clean up the_repo usage in builtin/merge-tree.c a tiny
bit.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update supporting parts of "git rebase" to remove code that should
no longer be used.
* js/rebase-cleanup:
rebase: fold git-rebase--common into the -p backend
sequencer: the `am` and `rebase--interactive` scripts are gone
.gitignore: there is no longer a built-in `git-rebase--interactive`
t3400: stop referring to the scripted rebase
Drop unused git-rebase--am.sh
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* jk/unused-params-final-batch:
verify-commit: simplify parameters to run_gpg_verify()
show-branch: drop unused parameter from show_independent()
rev-list: drop unused void pointer from finish_commit()
remove_all_fetch_refspecs(): drop unused "remote" parameter
receive-pack: drop unused "commands" from prepare_shallow_update()
pack-objects: drop unused rev_info parameters
name-rev: drop unused parameters from is_better_name()
mktree: drop unused length parameter
wt-status: drop unused status parameter
read-cache: drop unused parameter from threaded load
clone: drop dest parameter from copy_alternates()
submodule: drop unused prefix parameter from some functions
builtin: consistently pass cmd_* prefix to parse_options
cmd_{read,write}_tree: rename "unused" variable that is used
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The close_all_packs() method is now responsible for more than just pack-files.
It also closes the commit-graph and the multi-pack-index. Rename the function
to be more descriptive of its larger role. The name also fits because the
input parameter is a raw_object_store.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/rebase-config-bitfix:
rebase: replace incorrect logical negation by correct bitwise one
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In bff014dac7d9 (builtin rebase: support the `verbose` and `diffstat`
options, 2018-09-04), we added a line that wanted to remove the
`REBASE_DIFFSTAT` bit from the flags, but it used an incorrect negation.
Found by Coverity.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When `rebase -r` finishes it removes any refs under refs/rewritten that
it has created. However if the user aborts or quits the rebase refs are
not removed. This can cause problems for future rebases. For example I
recently wanted to merge a updated version of a topic branch into an
integration branch so ran `rebase -ir` and removed the picks and label
for the topic branch from the todo list so that
merge -C <old-merge> topic
would pick up the new version of topic. Unfortunately
refs/rewritten/topic already existed from a previous rebase that had
been aborted so the rebase just used the old topic, not the new one.
The logic for the non-interactive quit case is changed to ensure
`buf` is always freed.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If rebase --quit cannot remove the state directory then it dies. However
when rebase finishes normally or the user runs rebase --abort any errors
that occur when removing the state directory are ignored. That is fixed
by this commit.
All of the callers of finish_rebase() except the code
that handles --abort are careful to make sure they get a postive return
value, do the same for --abort.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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buf was never freed.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The only remaining scripted part of `git rebase` is the
`--preserve-merges` backend. Meaning: there is little reason to keep the
"library of common rebase functions" as a separate file.
While moving the functions to `git-rebase--preserve-merges.sh`, we also
drop the `move_to_original_branch` function that is no longer used.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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