Documentation / merge-options.txton commit do not write null sha1s to on-disk index (4337b58)
   1--commit::
   2--no-commit::
   3        Perform the merge and commit the result. This option can
   4        be used to override --no-commit.
   5+
   6With --no-commit perform the merge but pretend the merge
   7failed and do not autocommit, to give the user a chance to
   8inspect and further tweak the merge result before committing.
   9
  10--edit::
  11--no-edit::
  12        Invoke editor before committing successful merge to further
  13        edit the default merge message. The `--no-edit` option can be
  14        used to accept the auto-generated message (this is generally
  15        discouraged) when merging an annotated tag, in which case
  16        `git merge` automatically spawns the editor so that the result
  17        of the GPG verification of the tag can be seen.
  18+
  19Older scripts may depend on the historical behaviour of not allowing the
  20user to edit the merge log message. They will see an editor opened when
  21they run `git merge` to merge an annotated tag. To make it easier to adjust
  22such scripts to the updated behaviour, the environment variable
  23`GIT_MERGE_AUTOEDIT` can be set to `no` at the beginning of them.
  24
  25--ff::
  26        When the merge resolves as a fast-forward, only update the branch
  27        pointer, without creating a merge commit.  This is the default
  28        behavior.
  29
  30--no-ff::
  31        Create a merge commit even when the merge resolves as a
  32        fast-forward.
  33
  34--ff-only::
  35        Refuse to merge and exit with a non-zero status unless the
  36        current `HEAD` is already up-to-date or the merge can be
  37        resolved as a fast-forward.
  38
  39--log[=<n>]::
  40--no-log::
  41        In addition to branch names, populate the log message with
  42        one-line descriptions from at most <n> actual commits that are being
  43        merged. See also linkgit:git-fmt-merge-msg[1].
  44+
  45With --no-log do not list one-line descriptions from the
  46actual commits being merged.
  47
  48
  49--stat::
  50-n::
  51--no-stat::
  52        Show a diffstat at the end of the merge. The diffstat is also
  53        controlled by the configuration option merge.stat.
  54+
  55With -n or --no-stat do not show a diffstat at the end of the
  56merge.
  57
  58--squash::
  59--no-squash::
  60        Produce the working tree and index state as if a real
  61        merge happened (except for the merge information),
  62        but do not actually make a commit or
  63        move the `HEAD`, nor record `$GIT_DIR/MERGE_HEAD` to
  64        cause the next `git commit` command to create a merge
  65        commit.  This allows you to create a single commit on
  66        top of the current branch whose effect is the same as
  67        merging another branch (or more in case of an octopus).
  68+
  69With --no-squash perform the merge and commit the result. This
  70option can be used to override --squash.
  71
  72-s <strategy>::
  73--strategy=<strategy>::
  74        Use the given merge strategy; can be supplied more than
  75        once to specify them in the order they should be tried.
  76        If there is no `-s` option, a built-in list of strategies
  77        is used instead ('git merge-recursive' when merging a single
  78        head, 'git merge-octopus' otherwise).
  79
  80-X <option>::
  81--strategy-option=<option>::
  82        Pass merge strategy specific option through to the merge
  83        strategy.
  84
  85--summary::
  86--no-summary::
  87        Synonyms to --stat and --no-stat; these are deprecated and will be
  88        removed in the future.
  89
  90ifndef::git-pull[]
  91-q::
  92--quiet::
  93        Operate quietly. Implies --no-progress.
  94
  95-v::
  96--verbose::
  97        Be verbose.
  98
  99--progress::
 100--no-progress::
 101        Turn progress on/off explicitly. If neither is specified,
 102        progress is shown if standard error is connected to a terminal.
 103        Note that not all merge strategies may support progress
 104        reporting.
 105
 106endif::git-pull[]