Documentation/fetch-options.txt

   1 -a, \--append::
   2         Append ref names and object names of fetched refs to the
   3         existing contents of `.git/FETCH_HEAD`.  Without this
   4         option old data in `.git/FETCH_HEAD` will be overwritten.
   5
   6 -f, \--force::
   7         When `git-fetch` is used with `<rbranch>:<lbranch>`
   8         refspec, it refuses to update the local branch
   9         `<lbranch>` unless the remote branch `<rbranch>` it
  10         fetches is a descendant of `<lbranch>`.  This option
  11         overrides that check.
  12
  13 \--no-tags::
  14         By default, `git-fetch` fetches tags that point at
  15         objects that are downloaded from the remote repository
  16         and stores them locally.  This option disables this
  17         automatic tag following.
  18
  19 -t, \--tags::
  20         Most of the tags are fetched automatically as branch
  21         heads are downloaded, but tags that do not point at
  22         objects reachable from the branch heads that are being
  23         tracked will not be fetched by this mechanism.  This
  24         flag lets all tags and their associated objects be
  25         downloaded.
  26
  27 -u, \--update-head-ok::
  28         By default `git-fetch` refuses to update the head which
  29         corresponds to the current branch.  This flag disables the
  30         check.  Note that fetching into the current branch will not
  31         update the index and working directory, so use it with care.
  32