git rebase 命令参数

2024-03-01 14:26:22

1，rebase命令介绍

　　rebase 主要作用如其名：重新设置基点到指定位置。此外还可以结合squash操作进行提交记录压缩，选取连续到提交记录转移到指定分支。

2，rebase官方参数

NNAAMMEE
git-rebase - Reapply commits on top of another base tip

DDEESSCCRRIIPPTTIIOONN
If <branch> is specified, git rebase will perform an automatic ggiitt
sswwiittcchh <<bbrraanncchh>> before doing anything else. Otherwise it remains on the
current branch.

If <upstream> is not specified, the upstream configured in
branch.<name>.remote and branch.<name>.merge options will be used (see
ggiitt--ccoonnffiigg(1) for details) and the ----ffoorrkk--ppooiinntt option is assumed. If
you are currently not on any branch or if the current branch does not
have a configured upstream, the rebase will abort.

All changes made by commits in the current branch but that are not in
<upstream> are saved to a temporary area. This is the same set of
commits that would be shown by ggiitt lloogg <<uuppssttrreeaamm>>....HHEEAADD; or by ggiitt lloogg
''ffoorrkk__ppooiinntt''....HHEEAADD, if ----ffoorrkk--ppooiinntt is active (see the description on
----ffoorrkk--ppooiinntt below); or by ggiitt lloogg HHEEAADD, if the ----rroooott option is
specified.

The current branch is reset to <upstream>, or <newbase> if the --onto
option was supplied. This has the exact same effect as ggiitt rreesseett ----hhaarrdd
<<uuppssttrreeaamm>> (or <newbase>). ORIG_HEAD is set to point at the tip of the
branch before the reset.

The commits that were previously saved into the temporary area are then
reapplied to the current branch, one by one, in order. Note that any
commits in HEAD which introduce the same textual changes as a commit in
HEAD..<upstream> are omitted (i.e., a patch already accepted upstream
with a different commit message or timestamp will be skipped).

It is possible that a merge failure will prevent this process from
being completely automatic. You will have to resolve any such merge
failure and run ggiitt rreebbaassee ----ccoonnttiinnuuee. Another option is to bypass the
commit that caused the merge failure with ggiitt rreebbaassee ----sskkiipp. To check
out the original <branch> and remove the .git/rebase-apply working
files, use the command ggiitt rreebbaassee ----aabboorrtt instead.

Assume the following history exists and the current branch is "topic":

A---B---C topic
/
D---E---F---G master

From this point, the result of either of the following commands:

git rebase master
git rebase master topic

would be:

A'--B'--C' topic
/
D---E---F---G master

NNOOTTEE:: The latter form is just a short-hand of ggiitt cchheecckkoouutt ttooppiicc
followed by ggiitt rreebbaassee mmaasstteerr. When rebase exits ttooppiicc will remain the
checked-out branch.

If the upstream branch already contains a change you have made (e.g.,
because you mailed a patch which was applied upstream), then that
commit will be skipped. For example, running ggiitt rreebbaassee mmaasstteerr on the
following history (in which AA'' and AA introduce the same set of changes,
but have different committer information):

A---B---C topic
/
D---E---A'---F master

will result in:

B'---C' topic
/
D---E---A'---F master

Here is how you would transplant a topic branch based on one branch to
another, to pretend that you forked the topic branch from the latter
branch, using rreebbaassee ----oonnttoo.

First let's assume your _t_o_p_i_c is based on branch _n_e_x_t. For example, a
feature developed in _t_o_p_i_c depends on some functionality which is found
in _n_e_x_t.

o---o---o---o---o master
\
o---o---o---o---o next
\
o---o---o topic

We want to make _t_o_p_i_c forked from branch _m_a_s_t_e_r; for example, because
the functionality on which _t_o_p_i_c depends was merged into the more
stable _m_a_s_t_e_r branch. We want our tree to look like this:

o---o---o---o---o master
| \
| o'--o'--o' topic
\
o---o---o---o---o next

We can get this using the following command:

git rebase --onto master next topic

Another example of --onto option is to rebase part of a branch. If we
have the following situation:

H---I---J topicB
/
E---F---G topicA
/
A---B---C---D master

then the command

git rebase --onto master topicA topicB

would result in:

H'--I'--J' topicB
/
| E---F---G topicA
|/
A---B---C---D master

This is useful when topicB does not depend on topicA.

A range of commits could also be removed with rebase. If we have the
following situation:

E---F---G---H---I---J topicA

then the command

git rebase --onto topicA~5 topicA~3 topicA

would result in the removal of commits F and G:

E---H'---I'---J' topicA

This is useful if F and G were flawed in some way, or should not be
part of topicA. Note that the argument to --onto and the <upstream>
parameter can be any valid commit-ish.

In case of conflict, git rebase will stop at the first problematic
commit and leave conflict markers in the tree. You can use _g_i_t _d_i_f_f to
locate the markers (<<<<<<) and make edits to resolve the conflict. For
each file you edit, you need to tell Git that the conflict has been
resolved, typically this would be done with

git add <filename>

After resolving the conflict manually and updating the index with the
desired resolution, you can continue the rebasing process with

git rebase --continue

Alternatively, you can undo the git rebase with

git rebase --abort

OOPPTTIIOONNSS
--onto <newbase>
Starting point at which to create the new commits. If the --onto
option is not specified, the starting point is <upstream>. May be
any valid commit, and not just an existing branch name.

As a special case, you may use "A...B" as a shortcut for the merge
base of A and B if there is exactly one merge base. You can leave
out at most one of A and B, in which case it defaults to HEAD.

--keep-base
Set the starting point at which to create the new commits to the
merge base of <upstream> <branch>. Running git rebase _-_-_k_e_e_p_-_b_a_s_e
_<_u_p_s_t_r_e_a_m_> _<_b_r_a_n_c_h_> is equivalent to running git rebase _-_-_o_n_t_o
_<_u_p_s_t_r_e_a_m_>_._._. _<_u_p_s_t_r_e_a_m_>.

This option is useful in the case where one is developing a feature
on top of an upstream branch. While the feature is being worked on,
the upstream branch may advance and it may not be the best idea to
keep rebasing on top of the upstream but to keep the base commit
as-is.

Although both this option and --fork-point find the merge base
between <upstream> and <branch>, this option uses the merge base as
the _s_t_a_r_t_i_n_g _p_o_i_n_t on which new commits will be created, whereas
--fork-point uses the merge base to determine the _s_e_t _o_f _c_o_m_m_i_t_s
which will be rebased.

See also INCOMPATIBLE OPTIONS below.

<upstream>
Upstream branch to compare against. May be any valid commit, not
just an existing branch name. Defaults to the configured upstream
for the current branch.

<branch>
Working branch; defaults to HEAD.

--continue
Restart the rebasing process after having resolved a merge
conflict.

--abort
Abort the rebase operation and reset HEAD to the original branch.
If <branch> was provided when the rebase operation was started,
then HEAD will be reset to <branch>. Otherwise HEAD will be reset
to where it was when the rebase operation was started.

--quit
Abort the rebase operation but HEAD is not reset back to the
original branch. The index and working tree are also left unchanged
as a result. If a temporary stash entry was created using
--autostash, it will be saved to the stash list.

--apply
Use applying strategies to rebase (calling ggiitt--aamm internally). This
option may become a no-op in the future once the merge backend
handles everything the apply one does.

See also INCOMPATIBLE OPTIONS below.

--empty={drop,keep,ask}
How to handle commits that are not empty to start and are not clean
cherry-picks of any upstream commit, but which become empty after
rebasing (because they contain a subset of already upstream
changes). With drop (the default), commits that become empty are
dropped. With keep, such commits are kept. With ask (implied by
--interactive), the rebase will halt when an empty commit is
applied allowing you to choose whether to drop it, edit files more,
or just commit the empty changes. Other options, like --exec, will
use the default of drop unless -i/--interactive is explicitly
specified.

Note that commits which start empty are kept (unless
--no-keep-empty is specified), and commits which are clean
cherry-picks (as determined by ggiitt lloogg ----cchheerrrryy--mmaarrkk ......) are
detected and dropped as a preliminary step (unless
--reapply-cherry-picks is passed).

See also INCOMPATIBLE OPTIONS below.

--no-keep-empty, --keep-empty
Do not keep commits that start empty before the rebase (i.e. that
do not change anything from its parent) in the result. The default
is to keep commits which start empty, since creating such commits
requires passing the --allow-empty override flag to ggiitt ccoommmmiitt,
signifying that a user is very intentionally creating such a commit
and thus wants to keep it.

Usage of this flag will probably be rare, since you can get rid of
commits that start empty by just firing up an interactive rebase
and removing the lines corresponding to the commits you don't want.
This flag exists as a convenient shortcut, such as for cases where
external tools generate many empty commits and you want them all
removed.

For commits which do not start empty but become empty after
rebasing, see the --empty flag.

See also INCOMPATIBLE OPTIONS below.

--reapply-cherry-picks, --no-reapply-cherry-picks
Reapply all clean cherry-picks of any upstream commit instead of
preemptively dropping them. (If these commits then become empty
after rebasing, because they contain a subset of already upstream
changes, the behavior towards them is controlled by the ----eemmppttyy
flag.)

By default (or if ----nnoo--rreeaappppllyy--cchheerrrryy--ppiicckkss is given), these
commits will be automatically dropped. Because this necessitates
reading all upstream commits, this can be expensive in repos with a
large number of upstream commits that need to be read.

----rreeaappppllyy--cchheerrrryy--ppiicckkss allows rebase to forgo reading all upstream
commits, potentially improving performance.

See also INCOMPATIBLE OPTIONS below.

--allow-empty-message
No-op. Rebasing commits with an empty message used to fail and this
option would override that behavior, allowing commits with empty
messages to be rebased. Now commits with an empty message do not
cause rebasing to halt.

See also INCOMPATIBLE OPTIONS below.

--skip
Restart the rebasing process by skipping the current patch.

--edit-todo
Edit the todo list during an interactive rebase.

--show-current-patch
Show the current patch in an interactive rebase or when rebase is
stopped because of conflicts. This is the equivalent of ggiitt sshhooww
RREEBBAASSEE__HHEEAADD.

-m, --merge
Use merging strategies to rebase. When the recursive (default)
merge strategy is used, this allows rebase to be aware of renames
on the upstream side. This is the default.

Note that a rebase merge works by replaying each commit from the
working branch on top of the <upstream> branch. Because of this,
when a merge conflict happens, the side reported as _o_u_r_s is the
so-far rebased series, starting with <upstream>, and _t_h_e_i_r_s is the
working branch. In other words, the sides are swapped.

See also INCOMPATIBLE OPTIONS below.

-s <strategy>, --strategy=<strategy>
Use the given merge strategy. If there is no --ss option _g_i_t
_m_e_r_g_e_-_r_e_c_u_r_s_i_v_e is used instead. This implies --merge.

Because git rebase replays each commit from the working branch on
top of the <upstream> branch using the given strategy, using the
_o_u_r_s strategy simply empties all patches from the <branch>, which
makes little sense.

See also INCOMPATIBLE OPTIONS below.

-X <strategy-option>, --strategy-option=<strategy-option>
Pass the <strategy-option> through to the merge strategy. This
implies ----mmeerrggee and, if no strategy has been specified, --ss
rreeccuurrssiivvee. Note the reversal of _o_u_r_s and _t_h_e_i_r_s as noted above for
the --mm option.

See also INCOMPATIBLE OPTIONS below.

--rerere-autoupdate, --no-rerere-autoupdate
Allow the rerere mechanism to update the index with the result of
auto-conflict resolution if possible.

-S[<keyid>], --gpg-sign[=<keyid>], --no-gpg-sign
GPG-sign commits. The kkeeyyiidd argument is optional and defaults to
the committer identity; if specified, it must be stuck to the
option without a space. ----nnoo--ggppgg--ssiiggnn is useful to countermand
both ccoommmmiitt..ggppggSSiiggnn configuration variable, and earlier ----ggppgg--ssiiggnn.

-q, --quiet
Be quiet. Implies --no-stat.

-v, --verbose
Be verbose. Implies --stat.

--stat
Show a diffstat of what changed upstream since the last rebase. The
diffstat is also controlled by the configuration option
rebase.stat.

-n, --no-stat
Do not show a diffstat as part of the rebase process.

--no-verify
This option bypasses the pre-rebase hook. See also ggiitthhooookkss(5).

--verify
Allows the pre-rebase hook to run, which is the default. This
option can be used to override --no-verify. See also ggiitthhooookkss(5).

-C<n>
Ensure at least <n> lines of surrounding context match before and
after each change. When fewer lines of surrounding context exist
they all must match. By default no context is ever ignored. Implies
--apply.

See also INCOMPATIBLE OPTIONS below.

--no-ff, --force-rebase, -f
Individually replay all rebased commits instead of fast-forwarding
over the unchanged ones. This ensures that the entire history of
the rebased branch is composed of new commits.

You may find this helpful after reverting a topic branch merge, as
this option recreates the topic branch with fresh commits so it can
be remerged successfully without needing to "revert the reversion"
(see the rreevveerrtt--aa--ffaauullttyy--mmeerrggee HHooww--TToo[1] for details).

--fork-point, --no-fork-point
Use reflog to find a better common ancestor between <upstream> and
<branch> when calculating which commits have been introduced by
<branch>.

When --fork-point is active, _f_o_r_k___p_o_i_n_t will be used instead of
<upstream> to calculate the set of commits to rebase, where
_f_o_r_k___p_o_i_n_t is the result of ggiitt mmeerrggee--bbaassee ----ffoorrkk--ppooiinntt <<uuppssttrreeaamm>>
<<bbrraanncchh>> command (see ggiitt--mmeerrggee--bbaassee(1)). If _f_o_r_k___p_o_i_n_t ends up
being empty, the <upstream> will be used as a fallback.

If <upstream> is given on the command line, then the default is
----nnoo--ffoorrkk--ppooiinntt, otherwise the default is ----ffoorrkk--ppooiinntt.

If your branch was based on <upstream> but <upstream> was rewound
and your branch contains commits which were dropped, this option
can be used with ----kkeeeepp--bbaassee in order to drop those commits from
your branch.

See also INCOMPATIBLE OPTIONS below.

--ignore-whitespace
Ignore whitespace differences when trying to reconcile differences.
Currently, each backend implements an approximation of this
behavior:

apply backend: When applying a patch, ignore changes in whitespace
in context lines. Unfortunately, this means that if the "old" lines
being replaced by the patch differ only in whitespace from the
existing file, you will get a merge conflict instead of a
successful patch application.

merge backend: Treat lines with only whitespace changes as
unchanged when merging. Unfortunately, this means that any patch
hunks that were intended to modify whitespace and nothing else will
be dropped, even if the other side had no changes that conflicted.

--whitespace=<option>
This flag is passed to the _g_i_t _a_p_p_l_y program (see ggiitt--aappppllyy(1))
that applies the patch. Implies --apply.

See also INCOMPATIBLE OPTIONS below.

--committer-date-is-author-date
Instead of using the current time as the committer date, use the
author date of the commit being rebased as the committer date. This
option implies ----ffoorrccee--rreebbaassee.

--ignore-date, --reset-author-date
Instead of using the author date of the original commit, use the
current time as the author date of the rebased commit. This option
implies ----ffoorrccee--rreebbaassee.

See also INCOMPATIBLE OPTIONS below.

--signoff
Add a SSiiggnneedd--ooffff--bbyy trailer to all the rebased commits. Note that
if ----iinntteerraaccttiivvee is given then only commits marked to be picked,
edited or reworded will have the trailer added.

See also INCOMPATIBLE OPTIONS below.

-i, --interactive
Make a list of the commits which are about to be rebased. Let the
user edit that list before rebasing. This mode can also be used to
split commits (see SPLITTING COMMITS below).

The commit list format can be changed by setting the configuration
option rebase.instructionFormat. A customized instruction format
will automatically have the long commit hash prepended to the
format.

See also INCOMPATIBLE OPTIONS below.

-r, --rebase-merges[=(rebase-cousins|no-rebase-cousins)]
By default, a rebase will simply drop merge commits from the todo
list, and put the rebased commits into a single, linear branch.
With ----rreebbaassee--mmeerrggeess, the rebase will instead try to preserve the
branching structure within the commits that are to be rebased, by
recreating the merge commits. Any resolved merge conflicts or
manual amendments in these merge commits will have to be
resolved/re-applied manually.

By default, or when nnoo--rreebbaassee--ccoouussiinnss was specified, commits which
do not have <<uuppssttrreeaamm>> as direct ancestor will keep their original
branch point, i.e. commits that would be excluded by ggiitt--lloogg(1)'s
----aanncceessttrryy--ppaatthh option will keep their original ancestry by
default. If the rreebbaassee--ccoouussiinnss mode is turned on, such commits are
instead rebased onto <<uuppssttrreeaamm>> (or <<oonnttoo>>, if specified).

The ----rreebbaassee--mmeerrggeess mode is similar in spirit to the deprecated
----pprreesseerrvvee--mmeerrggeess but works with interactive rebases, where commits
can be reordered, inserted and dropped at will.

It is currently only possible to recreate the merge commits using
the rreeccuurrssiivvee merge strategy; Different merge strategies can be
used only via explicit eexxeecc ggiitt mmeerrggee --ss <<ssttrraatteeggyy>> [[......]]
commands.

See also REBASING MERGES and INCOMPATIBLE OPTIONS below.

-p, --preserve-merges
[DEPRECATED: use ----rreebbaassee--mmeerrggeess instead] Recreate merge commits
instead of flattening the history by replaying commits a merge
commit introduces. Merge conflict resolutions or manual amendments
to merge commits are not preserved.

This uses the ----iinntteerraaccttiivvee machinery internally, but combining it
with the ----iinntteerraaccttiivvee option explicitly is generally not a good
idea unless you know what you are doing (see BUGS below).

See also INCOMPATIBLE OPTIONS below.

-x <cmd>, --exec <cmd>
Append "exec <cmd>" after each line creating a commit in the final
history. <cmd> will be interpreted as one or more shell commands.
Any command that fails will interrupt the rebase, with exit code 1.

You may execute several commands by either using one instance of
----eexxeecc with several commands:

git rebase -i --exec "cmd1 && cmd2 && ..."

or by giving more than one ----eexxeecc:

git rebase -i --exec "cmd1" --exec "cmd2" --exec ...

If ----aauuttoossqquuaasshh is used, "exec" lines will not be appended for the
intermediate commits, and will only appear at the end of each
squash/fixup series.

This uses the ----iinntteerraaccttiivvee machinery internally, but it can be run
without an explicit ----iinntteerraaccttiivvee.

See also INCOMPATIBLE OPTIONS below.

--root
Rebase all commits reachable from <branch>, instead of limiting
them with an <upstream>. This allows you to rebase the root
commit(s) on a branch. When used with --onto, it will skip changes
already contained in <newbase> (instead of <upstream>) whereas
without --onto it will operate on every change. When used together
with both --onto and --preserve-merges, _a_l_l root commits will be
rewritten to have <newbase> as parent instead.

See also INCOMPATIBLE OPTIONS below.

--autosquash, --no-autosquash
When the commit log message begins with "squash! ..." or "fixup!
..." or "amend! ...", and there is already a commit in the todo
list that matches the same ......, automatically modify the todo list
of rreebbaassee --ii, so that the commit marked for squashing comes right
after the commit to be modified, and change the action of the moved
commit from ppiicckk to ssqquuaasshh or ffiixxuupp or ffiixxuupp --CC respectively. A
commit matches the ...... if the commit subject matches, or if the
...... refers to the commit's hash. As a fall-back, partial matches
of the commit subject work, too. The recommended way to create
fixup/amend/squash commits is by using the ----ffiixxuupp, ----ffiixxuupp==aammeenndd::
or ----ffiixxuupp==rreewwoorrdd:: and ----ssqquuaasshh options respectively of ggiitt--
ccoommmmiitt(1).

If the ----aauuttoossqquuaasshh option is enabled by default using the
configuration variable rreebbaassee..aauuttooSSqquuaasshh, this option can be used
to override and disable this setting.

See also INCOMPATIBLE OPTIONS below.

--autostash, --no-autostash
Automatically create a temporary stash entry before the operation
begins, and apply it after the operation ends. This means that you
can run rebase on a dirty worktree. However, use with care: the
final stash application after a successful rebase might result in
non-trivial conflicts.

--reschedule-failed-exec, --no-reschedule-failed-exec
Automatically reschedule eexxeecc commands that failed. This only makes
sense in interactive mode (or when an ----eexxeecc option was provided).

Even though this option applies once a rebase is started, it's set
for the whole rebase at the start based on either the
rreebbaassee..rreesscchheedduulleeFFaaiilleeddEExxeecc configuration (see ggiitt--ccoonnffiigg(1) or
"CONFIGURATION" below) or whether this option is provided.
Otherwise an explicit ----nnoo--rreesscchheedduullee--ffaaiilleedd--eexxeecc at the start
would be overridden by the presence of
rreebbaassee..rreesscchheedduulleeFFaaiilleeddEExxeecc==ttrruuee configuration.

IINNCCOOMMPPAATTIIBBLLEE OOPPTTIIOONNSS
The following options:

+o --apply

+o --whitespace

+o -C

are incompatible with the following options:

+o --merge

+o --strategy

+o --strategy-option

+o --allow-empty-message

+o --[no-]autosquash

+o --rebase-merges

+o --preserve-merges

+o --interactive

+o --exec

+o --no-keep-empty

+o --empty=

+o --reapply-cherry-picks

+o --edit-todo

+o --root when used in combination with --onto

In addition, the following pairs of options are incompatible:

+o --preserve-merges and --interactive

+o --preserve-merges and --signoff

+o --preserve-merges and --rebase-merges

+o --preserve-merges and --empty=

+o --preserve-merges and --ignore-whitespace

+o --preserve-merges and --committer-date-is-author-date

+o --preserve-merges and --ignore-date

+o --keep-base and --onto

+o --keep-base and --root

+o --fork-point and --root

BBEEHHAAVVIIOORRAALL DDIIFFFFEERREENNCCEESS
git rebase has two primary backends: apply and merge. (The apply
backend used to be known as the _a_m backend, but the name led to
confusion as it looks like a verb instead of a noun. Also, the merge
backend used to be known as the interactive backend, but it is now used
for non-interactive cases as well. Both were renamed based on
lower-level functionality that underpinned each.) There are some subtle
differences in how these two backends behave:

EEmmppttyy ccoommmmiittss
The apply backend unfortunately drops intentionally empty commits, i.e.
commits that started empty, though these are rare in practice. It also
drops commits that become empty and has no option for controlling this
behavior.

The merge backend keeps intentionally empty commits by default (though
with -i they are marked as empty in the todo list editor, or they can
be dropped automatically with --no-keep-empty).

Similar to the apply backend, by default the merge backend drops
commits that become empty unless -i/--interactive is specified (in
which case it stops and asks the user what to do). The merge backend
also has an --empty={drop,keep,ask} option for changing the behavior of
handling commits that become empty.

DDiirreeccttoorryy rreennaammee ddeetteeccttiioonn
Due to the lack of accurate tree information (arising from constructing
fake ancestors with the limited information available in patches),
directory rename detection is disabled in the apply backend. Disabled
directory rename detection means that if one side of history renames a
directory and the other adds new files to the old directory, then the
new files will be left behind in the old directory without any warning
at the time of rebasing that you may want to move these files into the
new directory.

Directory rename detection works with the merge backend to provide you
warnings in such cases.

CCoonntteexxtt
The apply backend works by creating a sequence of patches (by calling
ffoorrmmaatt--ppaattcchh internally), and then applying the patches in sequence
(calling aamm internally). Patches are composed of multiple hunks, each
with line numbers, a context region, and the actual changes. The line
numbers have to be taken with some fuzz, since the other side will
likely have inserted or deleted lines earlier in the file. The context
region is meant to help find how to adjust the line numbers in order to
apply the changes to the right lines. However, if multiple areas of the
code have the same surrounding lines of context, the wrong one can be
picked. There are real-world cases where this has caused commits to be
reapplied incorrectly with no conflicts reported. Setting diff.context
to a larger value may prevent such types of problems, but increases the
chance of spurious conflicts (since it will require more lines of
matching context to apply).

The merge backend works with a full copy of each relevant file,
insulating it from these types of problems.

LLaabbeelllliinngg ooff ccoonnfflliiccttss mmaarrkkeerrss
When there are content conflicts, the merge machinery tries to annotate
each side's conflict markers with the commits where the content came
from. Since the apply backend drops the original information about the
rebased commits and their parents (and instead generates new fake
commits based off limited information in the generated patches), those
commits cannot be identified; instead it has to fall back to a commit
summary. Also, when merge.conflictStyle is set to diff3, the apply
backend will use "constructed merge base" to label the content from the
merge base, and thus provide no information about the merge base commit
whatsoever.

The merge backend works with the full commits on both sides of history
and thus has no such limitations.

HHooookkss
The apply backend has not traditionally called the post-commit hook,
while the merge backend has. Both have called the post-checkout hook,
though the merge backend has squelched its output. Further, both
backends only call the post-checkout hook with the starting point
commit of the rebase, not the intermediate commits nor the final
commit. In each case, the calling of these hooks was by accident of
implementation rather than by design (both backends were originally
implemented as shell scripts and happened to invoke other commands like
_g_i_t _c_h_e_c_k_o_u_t or _g_i_t _c_o_m_m_i_t that would call the hooks). Both backends
should have the same behavior, though it is not entirely clear which,
if any, is correct. We will likely make rebase stop calling either of
these hooks in the future.

IInntteerrrruuppttaabbiilliittyy
The apply backend has safety problems with an ill-timed interrupt; if
the user presses Ctrl-C at the wrong time to try to abort the rebase,
the rebase can enter a state where it cannot be aborted with a
subsequent ggiitt rreebbaassee ----aabboorrtt. The merge backend does not appear to
suffer from the same shortcoming. (See
hhttttppss::////lloorree..kkeerrnneell..oorrgg//ggiitt//2200220000220077113322115522..GGCC22886688@@sszzeeddeerr..ddeevv// for
details.)

CCoommmmiitt RReewwoorrddiinngg
When a conflict occurs while rebasing, rebase stops and asks the user
to resolve. Since the user may need to make notable changes while
resolving conflicts, after conflicts are resolved and the user has run
ggiitt rreebbaassee ----ccoonnttiinnuuee, the rebase should open an editor and ask the
user to update the commit message. The merge backend does this, while
the apply backend blindly applies the original commit message.

MMiisscceellllaanneeoouuss ddiiffffeerreenncceess
There are a few more behavioral differences that most folks would
probably consider inconsequential but which are mentioned for
completeness:

+o Reflog: The two backends will use different wording when describing
the changes made in the reflog, though both will make use of the
word "rebase".

+o Progress, informational, and error messages: The two backends
provide slightly different progress and informational messages.
Also, the apply backend writes error messages (such as "Your files
would be overwritten...") to stdout, while the merge backend writes
them to stderr.

+o State directories: The two backends keep their state in different
directories under .git/

MMEERRGGEE SSTTRRAATTEEGGIIEESS
The merge mechanism (ggiitt mmeerrggee and ggiitt ppuullll commands) allows the
backend _m_e_r_g_e _s_t_r_a_t_e_g_i_e_s to be chosen with --ss option. Some strategies
can also take their own options, which can be passed by giving
--XX<<ooppttiioonn>> arguments to ggiitt mmeerrggee and/or ggiitt ppuullll.

resolve
This can only resolve two heads (i.e. the current branch and
another branch you pulled from) using a 3-way merge algorithm. It
tries to carefully detect criss-cross merge ambiguities and is
considered generally safe and fast.

recursive
This can only resolve two heads using a 3-way merge algorithm. When
there is more than one common ancestor that can be used for 3-way
merge, it creates a merged tree of the common ancestors and uses
that as the reference tree for the 3-way merge. This has been
reported to result in fewer merge conflicts without causing
mismerges by tests done on actual merge commits taken from Linux
2.6 kernel development history. Additionally this can detect and
handle merges involving renames, but currently cannot make use of
detected copies. This is the default merge strategy when pulling or
merging one branch.

The _r_e_c_u_r_s_i_v_e strategy can take the following options:

ours
This option forces conflicting hunks to be auto-resolved
cleanly by favoring _o_u_r version. Changes from the other tree
that do not conflict with our side are reflected in the merge
result. For a binary file, the entire contents are taken from
our side.

This should not be confused with the _o_u_r_s merge strategy, which
does not even look at what the other tree contains at all. It
discards everything the other tree did, declaring _o_u_r history
contains all that happened in it.

theirs
This is the opposite of _o_u_r_s; note that, unlike _o_u_r_s, there is
no _t_h_e_i_r_s merge strategy to confuse this merge option with.

patience
With this option, _m_e_r_g_e_-_r_e_c_u_r_s_i_v_e spends a little extra time to
avoid mismerges that sometimes occur due to unimportant
matching lines (e.g., braces from distinct functions). Use this
when the branches to be merged have diverged wildly. See also
ggiitt--ddiiffff(1) ----ppaattiieennccee.

diff-algorithm=[patience|minimal|histogram|myers]
Tells _m_e_r_g_e_-_r_e_c_u_r_s_i_v_e to use a different diff algorithm, which
can help avoid mismerges that occur due to unimportant matching
lines (such as braces from distinct functions). See also ggiitt--
ddiiffff(1) ----ddiiffff--aallggoorriitthhmm.

ignore-space-change, ignore-all-space, ignore-space-at-eol,
ignore-cr-at-eol
Treats lines with the indicated type of whitespace change as
unchanged for the sake of a three-way merge. Whitespace changes
mixed with other changes to a line are not ignored. See also
ggiitt--ddiiffff(1) --bb, --ww, ----iiggnnoorree--ssppaaccee--aatt--eeooll, and
----iiggnnoorree--ccrr--aatt--eeooll.

+o If _t_h_e_i_r version only introduces whitespace changes to a
line, _o_u_r version is used;

+o If _o_u_r version introduces whitespace changes but _t_h_e_i_r
version includes a substantial change, _t_h_e_i_r version is
used;

+o Otherwise, the merge proceeds in the usual way.

renormalize
This runs a virtual check-out and check-in of all three stages
of a file when resolving a three-way merge. This option is
meant to be used when merging branches with different clean
filters or end-of-line normalization rules. See "Merging
branches with differing checkin/checkout attributes" in
ggiittaattttrriibbuutteess(5) for details.

no-renormalize
Disables the rreennoorrmmaalliizzee option. This overrides the
mmeerrggee..rreennoorrmmaalliizzee configuration variable.

no-renames
Turn off rename detection. This overrides the mmeerrggee..rreennaammeess
configuration variable. See also ggiitt--ddiiffff(1) ----nnoo--rreennaammeess.

find-renames[=<n>]
Turn on rename detection, optionally setting the similarity
threshold. This is the default. This overrides the
_m_e_r_g_e_._r_e_n_a_m_e_s configuration variable. See also ggiitt--ddiiffff(1)
----ffiinndd--rreennaammeess.

rename-threshold=<n>
Deprecated synonym for ffiinndd--rreennaammeess==<<nn>>.

subtree[=<path>]
This option is a more advanced form of _s_u_b_t_r_e_e strategy, where
the strategy makes a guess on how two trees must be shifted to
match with each other when merging. Instead, the specified path
is prefixed (or stripped from the beginning) to make the shape
of two trees to match.

octopus
This resolves cases with more than two heads, but refuses to do a
complex merge that needs manual resolution. It is primarily meant
to be used for bundling topic branch heads together. This is the
default merge strategy when pulling or merging more than one
branch.

ours
This resolves any number of heads, but the resulting tree of the
merge is always that of the current branch head, effectively
ignoring all changes from all other branches. It is meant to be
used to supersede old development history of side branches. Note
that this is different from the -Xours option to the _r_e_c_u_r_s_i_v_e
merge strategy.

subtree
This is a modified recursive strategy. When merging trees A and B,
if B corresponds to a subtree of A, B is first adjusted to match
the tree structure of A, instead of reading the trees at the same
level. This adjustment is also done to the common ancestor tree.

With the strategies that use 3-way merge (including the default,
_r_e_c_u_r_s_i_v_e), if a change is made on both branches, but later reverted on
one of the branches, that change will be present in the merged result;
some people find this behavior confusing. It occurs because only the
heads and the merge base are considered when performing a merge, not
the individual commits. The merge algorithm therefore considers the
reverted change as no change at all, and substitutes the changed
version instead.

NNOOTTEESS
You should understand the implications of using git rebase on a
repository that you share. See also RECOVERING FROM UPSTREAM REBASE
below.

When the git-rebase command is run, it will first execute a
"pre-rebase" hook if one exists. You can use this hook to do sanity
checks and reject the rebase if it isn't appropriate. Please see the
template pre-rebase hook script for an example.

Upon completion, <branch> will be the current branch.

IINNTTEERRAACCTTIIVVEE MMOODDEE
Rebasing interactively means that you have a chance to edit the commits
which are rebased. You can reorder the commits, and you can remove them
(weeding out bad or otherwise unwanted patches).

The interactive mode is meant for this type of workflow:

1. have a wonderful idea

2. hack on the code

3. prepare a series for submission

4. submit

where point 2. consists of several instances of

a) regular use

1. finish something worthy of a commit

2. commit

b) independent fixup

1. realize that something does not work

2. fix that

3. commit it

Sometimes the thing fixed in b.2. cannot be amended to the not-quite
perfect commit it fixes, because that commit is buried deeply in a
patch series. That is exactly what interactive rebase is for: use it
after plenty of "a"s and "b"s, by rearranging and editing commits, and
squashing multiple commits into one.

Start it with the last commit you want to retain as-is:

git rebase -i <after-this-commit>

An editor will be fired up with all the commits in your current branch
(ignoring merge commits), which come after the given commit. You can
reorder the commits in this list to your heart's content, and you can
remove them. The list looks more or less like this:

pick deadbee The oneline of this commit
pick fa1afe1 The oneline of the next commit
...

The oneline descriptions are purely for your pleasure; git rebase will
not look at them but at the commit names ("deadbee" and "fa1afe1" in
this example), so do not delete or edit the names.

By replacing the command "pick" with the command "edit", you can tell
git rebase to stop after applying that commit, so that you can edit the
files and/or the commit message, amend the commit, and continue
rebasing.

To interrupt the rebase (just like an "edit" command would do, but
without cherry-picking any commit first), use the "break" command.

If you just want to edit the commit message for a commit, replace the
command "pick" with the command "reword".

To drop a commit, replace the command "pick" with "drop", or just
delete the matching line.

If you want to fold two or more commits into one, replace the command
"pick" for the second and subsequent commits with "squash" or "fixup".
If the commits had different authors, the folded commit will be
attributed to the author of the first commit. The suggested commit
message for the folded commit is the concatenation of the first
commit's message with those identified by "squash" commands, omitting
the messages of commits identified by "fixup" commands, unless "fixup
-c" is used. In that case the suggested commit message is only the
message of the "fixup -c" commit, and an editor is opened allowing you
to edit the message. The contents (patch) of the "fixup -c" commit are
still incorporated into the folded commit. If there is more than one
"fixup -c" commit, the message from the final one is used. You can also
use "fixup -C" to get the same behavior as "fixup -c" except without
opening an editor.

git rebase will stop when "pick" has been replaced with "edit" or when
a command fails due to merge errors. When you are done editing and/or
resolving conflicts you can continue with ggiitt rreebbaassee ----ccoonnttiinnuuee.

For example, if you want to reorder the last 5 commits, such that what
was HEAD~4 becomes the new HEAD. To achieve that, you would call _g_i_t
_r_e_b_a_s_e like this:

$ git rebase -i HEAD~5

And move the first patch to the end of the list.

You might want to recreate merge commits, e.g. if you have a history
like this:

X
\
A---M---B
/
---o---O---P---Q

Suppose you want to rebase the side branch starting at "A" to "Q". Make
sure that the current HEAD is "B", and call

$ git rebase -i -r --onto Q O

Reordering and editing commits usually creates untested intermediate
steps. You may want to check that your history editing did not break
anything by running a test, or at least recompiling at intermediate
points in history by using the "exec" command (shortcut "x"). You may
do so by creating a todo list like this one:

pick deadbee Implement feature XXX
fixup f1a5c00 Fix to feature XXX
exec make
pick c0ffeee The oneline of the next commit
edit deadbab The oneline of the commit after
exec cd subdir; make test
...

The interactive rebase will stop when a command fails (i.e. exits with
non-0 status) to give you an opportunity to fix the problem. You can
continue with ggiitt rreebbaassee ----ccoonnttiinnuuee.

The "exec" command launches the command in a shell (the one specified
in $$SSHHEELLLL, or the default shell if $$SSHHEELLLL is not set), so you can use
shell features (like "cd", ">", ";" ...). The command is run from the
root of the working tree.

$ git rebase -i --exec "make test"

This command lets you check that intermediate commits are compilable.
The todo list becomes like that:

pick 5928aea one
exec make test
pick 04d0fda two
exec make test
pick ba46169 three
exec make test
pick f4593f9 four
exec make test

SSPPLLIITTTTIINNGG CCOOMMMMIITTSS
In interactive mode, you can mark commits with the action "edit".
However, this does not necessarily mean that git rebase expects the
result of this edit to be exactly one commit. Indeed, you can undo the
commit, or you can add other commits. This can be used to split a
commit into two:

+o Start an interactive rebase with ggiitt rreebbaassee --ii <<ccoommmmiitt>>^^, where
<commit> is the commit you want to split. In fact, any commit range
will do, as long as it contains that commit.

+o Mark the commit you want to split with the action "edit".

+o When it comes to editing that commit, execute ggiitt rreesseett HHEEAADD^^. The
effect is that the HEAD is rewound by one, and the index follows
suit. However, the working tree stays the same.

+o Now add the changes to the index that you want to have in the first
commit. You can use ggiitt aadddd (possibly interactively) or _g_i_t _g_u_i (or
both) to do that.

+o Commit the now-current index with whatever commit message is
appropriate now.

+o Repeat the last two steps until your working tree is clean.

+o Continue the rebase with ggiitt rreebbaassee ----ccoonnttiinnuuee.

If you are not absolutely sure that the intermediate revisions are
consistent (they compile, pass the testsuite, etc.) you should use _g_i_t
_s_t_a_s_h to stash away the not-yet-committed changes after each commit,
test, and amend the commit if fixes are necessary.

RREECCOOVVEERRIINNGG FFRROOMM UUPPSSTTRREEAAMM RREEBBAASSEE
Rebasing (or any other form of rewriting) a branch that others have
based work on is a bad idea: anyone downstream of it is forced to
manually fix their history. This section explains how to do the fix
from the downstream's point of view. The real fix, however, would be to
avoid rebasing the upstream in the first place.

To illustrate, suppose you are in a situation where someone develops a
_s_u_b_s_y_s_t_e_m branch, and you are working on a _t_o_p_i_c that is dependent on
this _s_u_b_s_y_s_t_e_m. You might end up with a history like the following:

o---o---o---o---o---o---o---o master
\
o---o---o---o---o subsystem
\
*---*---* topic

If _s_u_b_s_y_s_t_e_m is rebased against _m_a_s_t_e_r, the following happens:

o---o---o---o---o---o---o---o master
\ \
o---o---o---o---o o'--o'--o'--o'--o' subsystem
\
*---*---* topic

If you now continue development as usual, and eventually merge _t_o_p_i_c to
_s_u_b_s_y_s_t_e_m, the commits from _s_u_b_s_y_s_t_e_m will remain duplicated forever:

o---o---o---o---o---o---o---o master
\ \
o---o---o---o---o o'--o'--o'--o'--o'--M subsystem
\ /
*---*---*-..........-*--* topic

Such duplicates are generally frowned upon because they clutter up
history, making it harder to follow. To clean things up, you need to
transplant the commits on _t_o_p_i_c to the new _s_u_b_s_y_s_t_e_m tip, i.e., rebase
_t_o_p_i_c. This becomes a ripple effect: anyone downstream from _t_o_p_i_c is
forced to rebase too, and so on!

There are two kinds of fixes, discussed in the following subsections:

Easy case: The changes are literally the same.
This happens if the _s_u_b_s_y_s_t_e_m rebase was a simple rebase and had no
conflicts.

Hard case: The changes are not the same.
This happens if the _s_u_b_s_y_s_t_e_m rebase had conflicts, or used
----iinntteerraaccttiivvee to omit, edit, squash, or fixup commits; or if the
upstream used one of ccoommmmiitt ----aammeenndd, rreesseett, or a full history
rewriting command like ffiilltteerr--rreeppoo[2].

TThhee eeaassyy ccaassee
Only works if the changes (patch IDs based on the diff contents) on
_s_u_b_s_y_s_t_e_m are literally the same before and after the rebase _s_u_b_s_y_s_t_e_m
did.

In that case, the fix is easy because git rebase knows to skip changes
that are already present in the new upstream (unless
----rreeaappppllyy--cchheerrrryy--ppiicckkss is given). So if you say (assuming you're on
_t_o_p_i_c)

$ git rebase subsystem

you will end up with the fixed history

o---o---o---o---o---o---o---o master
\
o'--o'--o'--o'--o' subsystem
\
*---*---* topic

TThhee hhaarrdd ccaassee
Things get more complicated if the _s_u_b_s_y_s_t_e_m changes do not exactly
correspond to the ones before the rebase.

NNoottee
While an "easy case recovery" sometimes appears to be successful
even in the hard case, it may have unintended consequences. For
example, a commit that was removed via ggiitt rreebbaassee ----iinntteerraaccttiivvee
will be rreessuurrrreecctteedd!

The idea is to manually tell git rebase "where the old _s_u_b_s_y_s_t_e_m ended
and your _t_o_p_i_c began", that is, what the old merge base between them
was. You will have to find a way to name the last commit of the old
_s_u_b_s_y_s_t_e_m, for example:

+o With the _s_u_b_s_y_s_t_e_m reflog: after _g_i_t _f_e_t_c_h, the old tip of
_s_u_b_s_y_s_t_e_m is at ssuubbssyysstteemm@@{{11}}. Subsequent fetches will increase the
number. (See ggiitt--rreefflloogg(1).)

+o Relative to the tip of _t_o_p_i_c: knowing that your _t_o_p_i_c has three
commits, the old tip of _s_u_b_s_y_s_t_e_m must be ttooppiicc~~33.

You can then transplant the old ssuubbssyysstteemm....ttooppiicc to the new tip by
saying (for the reflog case, and assuming you are on _t_o_p_i_c already):

$ git rebase --onto subsystem subsystem@{1}

The ripple effect of a "hard case" recovery is especially bad: _e_v_e_r_y_o_n_e
downstream from _t_o_p_i_c will now have to perform a "hard case" recovery
too!

RREEBBAASSIINNGG MMEERRGGEESS
The interactive rebase command was originally designed to handle
individual patch series. As such, it makes sense to exclude merge
commits from the todo list, as the developer may have merged the
then-current mmaasstteerr while working on the branch, only to rebase all the
commits onto mmaasstteerr eventually (skipping the merge commits).

However, there are legitimate reasons why a developer may want to
recreate merge commits: to keep the branch structure (or "commit
topology") when working on multiple, inter-related branches.

In the following example, the developer works on a topic branch that
refactors the way buttons are defined, and on another topic branch that
uses that refactoring to implement a "Report a bug" button. The output
of ggiitt lloogg ----ggrraapphh ----ffoorrmmaatt==%%ss --55 may look like this:

The developer might want to rebase those commits to a newer mmaasstteerr
while keeping the branch topology, for example when the first topic
branch is expected to be integrated into mmaasstteerr much earlier than the
second one, say, to resolve merge conflicts with changes to the
DownloadButton class that made it into mmaasstteerr.

This rebase can be performed using the ----rreebbaassee--mmeerrggeess option. It will
generate a todo list looking like this:

label onto

# Branch: refactor-button
reset onto
pick 123456 Extract a generic Button class from the DownloadButton one
pick 654321 Use the Button class for all buttons
label refactor-button

# Branch: report-a-bug
reset refactor-button # Use the Button class for all buttons
pick abcdef Add the feedback button
label report-a-bug

reset onto
merge -C a1b2c3 refactor-button # Merge 'refactor-button'
merge -C 6f5e4d report-a-bug # Merge 'report-a-bug'

In contrast to a regular interactive rebase, there are llaabbeell, rreesseett and
mmeerrggee commands in addition to ppiicckk ones.

The llaabbeell command associates a label with the current HEAD when that
command is executed. These labels are created as worktree-local refs
(rreeffss//rreewwrriitttteenn//<<llaabbeell>>) that will be deleted when the rebase finishes.
That way, rebase operations in multiple worktrees linked to the same
repository do not interfere with one another. If the llaabbeell command
fails, it is rescheduled immediately, with a helpful message how to
proceed.

The rreesseett command resets the HEAD, index and worktree to the specified
revision. It is similar to an eexxeecc ggiitt rreesseett ----hhaarrdd <<llaabbeell>>, but
refuses to overwrite untracked files. If the rreesseett command fails, it is
rescheduled immediately, with a helpful message how to edit the todo
list (this typically happens when a rreesseett command was inserted into the
todo list manually and contains a typo).

The mmeerrggee command will merge the specified revision(s) into whatever is
HEAD at that time. With --CC <<oorriiggiinnaall--ccoommmmiitt>>, the commit message of the
specified merge commit will be used. When the --CC is changed to a
lower-case --cc, the message will be opened in an editor after a
successful merge so that the user can edit the message.

If a mmeerrggee command fails for any reason other than merge conflicts
(i.e. when the merge operation did not even start), it is rescheduled
immediately.

At this time, the mmeerrggee command will aallwwaayyss use the rreeccuurrssiivvee merge
strategy for regular merges, and ooccttooppuuss for octopus merges, with no
way to choose a different one. To work around this, an eexxeecc command can
be used to call ggiitt mmeerrggee explicitly, using the fact that the labels
are worktree-local refs (the ref rreeffss//rreewwrriitttteenn//oonnttoo would correspond
to the label oonnttoo, for example).

Note: the first command (llaabbeell oonnttoo) labels the revision onto which the
commits are rebased; The name oonnttoo is just a convention, as a nod to
the ----oonnttoo option.

It is also possible to introduce completely new merge commits from
scratch by adding a command of the form mmeerrggee <<mmeerrggee--hheeaadd>>. This form
will generate a tentative commit message and always open an editor to
let the user edit it. This can be useful e.g. when a topic branch turns
out to address more than a single concern and wants to be split into
two or even more topic branches. Consider this todo list:

pick 192837 Switch from GNU Makefiles to CMake
pick 5a6c7e Document the switch to CMake
pick 918273 Fix detection of OpenSSL in CMake
pick afbecd http: add support for TLS v1.3
pick fdbaec Fix detection of cURL in CMake on Windows

The one commit in this list that is not related to CMake may very well
have been motivated by working on fixing all those bugs introduced by
switching to CMake, but it addresses a different concern. To split this
branch into two topic branches, the todo list could be edited like
this:

label onto

pick afbecd http: add support for TLS v1.3
label tlsv1.3

reset onto
pick 192837 Switch from GNU Makefiles to CMake
pick 918273 Fix detection of OpenSSL in CMake
pick fdbaec Fix detection of cURL in CMake on Windows
pick 5a6c7e Document the switch to CMake
label cmake

reset onto
merge tlsv1.3
merge cmake

CCOONNFFIIGGUURRAATTIIOONN
rebase.backend
Default backend to use for rebasing. Possible choices are _a_p_p_l_y or
_m_e_r_g_e. In the future, if the merge backend gains all remaining
capabilities of the apply backend, this setting may become unused.

rebase.stat
Whether to show a diffstat of what changed upstream since the last
rebase. False by default.

rebase.autoSquash
If set to true enable ----a auuttoossqquuaasshh option by default.

rebase.autoStash
When set to true, automatically create a temporary stash entry
before the operation begins, and apply it after the operation ends.
This means that you can run rebase on a dirty worktree. However,
use with care: the final stash application after a successful
rebase might result in non-trivial conflicts. This option can be
overridden by the ----nnoo--aauuttoossttaasshh and ----aauuttoossttaasshh options of ggiitt--
rreebbaassee(1). Defaults to false.

rebase.missingCommitsCheck
If set to "warn", git rebase -i will print a warning if some
commits are removed (e.g. a line was deleted), however the rebase
will still proceed. If set to "error", it will print the previous
warning and stop the rebase, git rebase _-_-_e_d_i_t_-_t_o_d_o can then be
used to correct the error. If set to "ignore", no checking is done.
To drop a commit without warning or error, use the ddrroopp command in
the todo list. Defaults to "ignore".

rebase.instructionFormat
A format string, as specified in ggiitt--lloogg(1), to be used for the
todo list during an interactive rebase. The format will
automatically have the long commit hash prepended to the format.

rebase.abbreviateCommands
If set to true, ggiitt rreebbaassee will use abbreviated command names in
the todo list resulting in something like this:

p deadbee The oneline of the commit
p fa1afe1 The oneline of the next commit
...

instead of:

pick deadbee The oneline of the commit
pick fa1afe1 The oneline of the next commit
...

Defaults to false.

rebase.rescheduleFailedExec
Automatically reschedule eexxeecc commands that failed. This only makes
sense in interactive mode (or when an ----eexxeecc option was provided).
This is the same as specifying the ----rreesscchheedduullee--ffaaiilleedd--eexxeecc option.

rebase.forkPoint
If set to false set ----nnoo--ffoorrkk--ppooiinntt option by default.

sequence.editor
Text editor used by ggiitt rreebbaassee --ii for editing the rebase
instruction file. The value is meant to be interpreted by the shell
when it is used. It can be overridden by the GGIITT__SSEEQQUUEENNCCEE__EEDDIITTOORR
environment variable. When not configured the default commit
message editor is used instead.

BBUUGGSS
The todo list presented by the deprecated ----pprreesseerrvvee--mmeerrggeess
----iinntteerraaccttiivvee does not represent the topology of the revision graph
(use ----rreebbaassee--mmeerrggeess instead). Editing commits and rewording their
commit messages should work fine, but attempts to reorder commits tend
to produce counterintuitive results. Use ----rreebbaassee--mmeerrggeess in such
scenarios instead.

For example, an attempt to rearrange

1 --- 2 --- 3 --- 4 --- 5

1 --- 2 --- 4 --- 3 --- 5

by moving the "pick 4" line will result in the following history:

3
/
1 --- 2 --- 4 --- 5

GGIITT
Part of the ggiitt(1) suite

NNOOTTEESS
1. revert-a-faulty-merge How-To
git-htmldocs/howto/revert-a-faulty-merge.html

2. ffiilltteerr--rreeppoo
https://github.com/newren/git-filter-repo

Git 2.32.0 06/06/2021 GIT-REBASE(1)

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