print the selected revision of current buffer file (require fzf.vim and fugitive.vim)

fzf-git-show.vim

" source
function! s:list_commits() abort
  let l:res = system('git log --date=short --format="%C(green)%C(bold)%cd %C(auto)%h%d %s (%an)" --color=always')
  return split(l:res, "\n")
endfunction
" sink
function! s:select_commits(commit_hash) abort
  let l:list = split(a:commit_hash, ' ')
  let l:execute_command = 'Git show ' . l:list[1] . ':%'
  execute l:execute_command
endfunction
command! GShow call fzf#run(fzf#wrap({
  \ 'source': s:list_commits(),
  \ 'sink': funcref('s:select_commits'),
  \ 'options': '--ansi --prompt "git show of the buffer> "',
\ }))