--keep-empty::
Keep the commits that do not change anything from its
parents in the result.
++
+See also INCOMPATIBLE OPTIONS below.
--allow-empty-message::
By default, rebasing commits with an empty message will fail.
This option overrides that behavior, allowing commits with empty
messages to be rebased.
++
+See also INCOMPATIBLE OPTIONS below.
--skip::
Restart the rebasing process by skipping the current patch.
conflict happens, the side reported as 'ours' is the so-far rebased
series, starting with <upstream>, and 'theirs' is the working branch. In
other words, the sides are swapped.
++
+See also INCOMPATIBLE OPTIONS below.
-s <strategy>::
--strategy=<strategy>::
+
Because 'git rebase' replays each commit from the working branch
on top of the <upstream> branch using the given strategy, using
-the 'ours' strategy simply discards all patches from the <branch>,
+the 'ours' strategy simply empties all patches from the <branch>,
which makes little sense.
++
+See also INCOMPATIBLE OPTIONS below.
-X <strategy-option>::
--strategy-option=<strategy-option>::
This implies `--merge` and, if no strategy has been
specified, `-s recursive`. Note the reversal of 'ours' and
'theirs' as noted above for the `-m` option.
++
+See also INCOMPATIBLE OPTIONS below.
-S[<keyid>]::
--gpg-sign[=<keyid>]::
and after each change. When fewer lines of surrounding
context exist they all must match. By default no context is
ever ignored.
++
+See also INCOMPATIBLE OPTIONS below.
--f::
+--no-ff::
--force-rebase::
- Force a rebase even if the current branch is up to date and
- the command without `--force` would return without doing anything.
+-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 (or --no-ff with an interactive rebase) 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
-link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details).
+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
+link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for
+details).
--fork-point::
--no-fork-point::
--whitespace=<option>::
These flag are passed to the 'git apply' program
(see linkgit:git-apply[1]) that applies the patch.
- Incompatible with the --interactive option.
++
+See also INCOMPATIBLE OPTIONS below.
--committer-date-is-author-date::
--ignore-date::
These flags are passed to 'git am' to easily change the dates
of the rebased commits (see linkgit:git-am[1]).
- Incompatible with the --interactive option.
++
+See also INCOMPATIBLE OPTIONS below.
--signoff::
Add a Signed-off-by: trailer to all the rebased commits. Note
that if `--interactive` is given then only commits marked to be
- picked, edited or reworded will have the trailer added. Incompatible
- with the `--preserve-merges` option.
+ picked, edited or reworded will have the trailer added.
++
+See also INCOMPATIBLE OPTIONS below.
-i::
--interactive::
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)]::
`recursive` merge strategy; Different merge strategies can be used only via
explicit `exec git merge -s <strategy> [...]` commands.
+
-See also REBASING MERGES below.
+See also REBASING MERGES and INCOMPATIBLE OPTIONS below.
-p::
--preserve-merges::
This uses the `--interactive` machinery internally, but combining it
with the `--interactive` 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>::
+
This uses the `--interactive` machinery internally, but it can be run
without an explicit `--interactive`.
++
+See also INCOMPATIBLE OPTIONS below.
--root::
Rebase all commits reachable from <branch>, instead of
When used together with both --onto and --preserve-merges,
'all' root commits will be rewritten to have <newbase> as parent
instead.
++
+See also INCOMPATIBLE OPTIONS below.
--autosquash::
--no-autosquash::
too. The recommended way to create fixup/squash commits is by using
the `--fixup`/`--squash` options of linkgit:git-commit[1].
+
-This option is only valid when the `--interactive` option is used.
-+
If the `--autosquash` option is enabled by default using the
configuration variable `rebase.autoSquash`, this option can be
used to override and disable this setting.
++
+See also INCOMPATIBLE OPTIONS below.
--autostash::
--no-autostash::
with care: the final stash application after a successful
rebase might result in non-trivial conflicts.
---no-ff::
- With --interactive, cherry-pick 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.
-+
-Without --interactive, this is a synonym for --force-rebase.
-+
-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
-link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details).
+INCOMPATIBLE OPTIONS
+--------------------
+
+git-rebase has many flags that are incompatible with each other,
+predominantly due to the fact that it has three different underlying
+implementations:
+
+ * one based on linkgit:git-am[1] (the default)
+ * one based on git-merge-recursive (merge backend)
+ * one based on linkgit:git-cherry-pick[1] (interactive backend)
+
+Flags only understood by the am backend:
+
+ * --committer-date-is-author-date
+ * --ignore-date
+ * --whitespace
+ * --ignore-whitespace
+ * -C
+
+Flags understood by both merge and interactive backends:
+
+ * --merge
+ * --strategy
+ * --strategy-option
+ * --allow-empty-message
+
+Flags only understood by the interactive backend:
+
+ * --[no-]autosquash
+ * --rebase-merges
+ * --preserve-merges
+ * --interactive
+ * --exec
+ * --keep-empty
+ * --autosquash
+ * --edit-todo
+ * --root when used in combination with --onto
+
+Other incompatible flag pairs:
+
+ * --preserve-merges and --interactive
+ * --preserve-merges and --signoff
+ * --preserve-merges and --rebase-merges
+ * --rebase-merges and --strategy
+ * --rebase-merges and --strategy-option
+
+BEHAVIORAL DIFFERENCES
+-----------------------
+
+ * empty commits:
+
+ am-based rebase will drop any "empty" commits, whether the
+ commit started empty (had no changes relative to its parent to
+ start with) or ended empty (all changes were already applied
+ upstream in other commits).
+
+ merge-based rebase does the same.
+
+ interactive-based rebase will by default drop commits that
+ started empty and halt if it hits a commit that ended up empty.
+ The `--keep-empty` option exists for interactive rebases to allow
+ it to keep commits that started empty.
+
+ * directory rename detection:
+
+ merge-based and interactive-based rebases work fine with
+ directory rename detection. am-based rebases sometimes do not.
include::merge-strategies.txt[]
case" recovery too!
REBASING MERGES
------------------
+---------------
The interactive rebase command was originally designed to handle
individual patch series. As such, it makes sense to exclude merge