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-rw-r--r--Documentation/merge-options.txt73
1 files changed, 52 insertions, 21 deletions
diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt
index 1a5c12e317..5b4a62e936 100644
--- a/Documentation/merge-options.txt
+++ b/Documentation/merge-options.txt
@@ -9,17 +9,38 @@ inspect and further tweak the merge result before committing.
--edit::
-e::
- Invoke editor before committing successful merge to further
- edit the default merge message.
+--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::
- Do not generate a merge commit if the merge resolved as
- a fast-forward, only update the branch pointer. This is
- the default behavior of git-merge.
-+
-With --no-ff Generate a merge commit even if the merge
-resolved as a fast-forward.
+ 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::
@@ -42,23 +63,17 @@ 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 or
- move the `HEAD`, nor record `$GIT_DIR/MERGE_HEAD` to
- cause the next `git commit` command to create a merge
- commit. This allows you to create a single commit on
- top of the current branch whose effect is the same as
- merging another branch (or more in case of an octopus).
+ Produce the working tree and index state as if a real merge
+ happened (except for the merge information), but do not actually
+ make a commit, move the `HEAD`, or record `$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.
---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.
-
-s <strategy>::
--strategy=<strategy>::
Use the given merge strategy; can be supplied more than
@@ -72,6 +87,14 @@ option can be used to override --squash.
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
@@ -94,3 +117,11 @@ ifndef::git-pull[]
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.