git/Documentation/merge-options.txt
Junio C Hamano be6ec17822 Merge branch 'kf/gpg-sig-verification-doc'
Documentation for "git merge --verify-signatures" has been updated
to clarify that the signature of only the commit at the tip is
verified.  Also the phrasing used for signature and key validity is
adjusted to align with that used by OpenPGP.

* kf/gpg-sig-verification-doc:
  Documentation: clarify signature verification
2016-05-17 14:38:39 -07:00

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--commit::
--no-commit::
Perform the merge and commit the result. This option can
be used to override --no-commit.
+
With --no-commit perform the merge but pretend the merge
failed and do not autocommit, to give the user a chance to
inspect and further tweak the merge result before committing.
--edit::
-e::
--no-edit::
Invoke an editor before committing successful mechanical merge to
further edit the auto-generated merge message, so that the user
can explain and justify the merge. The `--no-edit` option can be
used to accept the auto-generated message (this is generally
discouraged).
ifndef::git-pull[]
The `--edit` (or `-e`) option is still useful if you are
giving a draft message with the `-m` option from the command line
and want to edit it in the editor.
endif::git-pull[]
+
Older scripts may depend on the historical behaviour of not allowing the
user to edit the merge log message. They will see an editor opened when
they run `git merge`. To make it easier to adjust such scripts to the
updated behaviour, the environment variable `GIT_MERGE_AUTOEDIT` can be
set to `no` at the beginning of them.
--ff::
When the merge resolves as a fast-forward, only update the branch
pointer, without creating a merge commit. This is the default
behavior.
--no-ff::
Create a merge commit even when the merge resolves as a
fast-forward. This is the default behaviour when merging an
annotated (and possibly signed) tag.
--ff-only::
Refuse to merge and exit with a non-zero status unless the
current `HEAD` is already up-to-date or the merge can be
resolved as a fast-forward.
--log[=<n>]::
--no-log::
In addition to branch names, populate the log message with
one-line descriptions from at most <n> actual commits that are being
merged. See also linkgit:git-fmt-merge-msg[1].
+
With --no-log do not list one-line descriptions from the
actual commits being merged.
--stat::
-n::
--no-stat::
Show a diffstat at the end of the merge. The diffstat is also
controlled by the configuration option merge.stat.
+
With -n or --no-stat do not show a diffstat at the end of the
merge.
--squash::
--no-squash::
Produce the working tree and index state as if a real merge
happened (except for the merge information), but do not actually
make a commit, move the `HEAD`, or record `$GIT_DIR/MERGE_HEAD`
(to cause the next `git commit` command to create a merge
commit). This allows you to create a single commit on top of
the current branch whose effect is the same as merging another
branch (or more in case of an octopus).
+
With --no-squash perform the merge and commit the result. This
option can be used to override --squash.
-s <strategy>::
--strategy=<strategy>::
Use the given merge strategy; can be supplied more than
once to specify them in the order they should be tried.
If there is no `-s` option, a built-in list of strategies
is used instead ('git merge-recursive' when merging a single
head, 'git merge-octopus' otherwise).
-X <option>::
--strategy-option=<option>::
Pass merge strategy specific option through to the merge
strategy.
--verify-signatures::
--no-verify-signatures::
Verify that the tip commit of the side branch being merged is
signed with a valid key, i.e. a key that has a valid uid: in the
default trust model, this means the signing key has been signed by
a trusted key. If the tip commit of the side branch is not signed
with a valid key, the merge is aborted.
--summary::
--no-summary::
Synonyms to --stat and --no-stat; these are deprecated and will be
removed in the future.
ifndef::git-pull[]
-q::
--quiet::
Operate quietly. Implies --no-progress.
-v::
--verbose::
Be verbose.
--progress::
--no-progress::
Turn progress on/off explicitly. If neither is specified,
progress is shown if standard error is connected to a terminal.
Note that not all merge strategies may support progress
reporting.
endif::git-pull[]
--allow-unrelated-histories::
By default, `git merge` command refuses to merge histories
that do not share a common ancestor. This option can be
used to override this safety when merging histories of two
projects that started their lives independently. As that is
a very rare occasion, no configuration variable to enable
this by default exists and will not be added.