gistfile1.txt

#!/bin/bash

# = USAGE
#  git ff
#
# = INSTALL
#  gist 358659 > git-ff &&
#  chmod 755 git-ff &&
#  mv git-ff /usr/local/bin/git-ff

function git_branch_name {
  ref=$(git symbolic-ref HEAD 2> /dev/null)
  echo "${ref#refs/heads/}"
}

git merge origin/$(git_branch_name)