Getting GitHub url to frozen selection

You have a repo on GitHub. Every once and a while you want to share a link to a chunk you have just selected in Vim. With fugitive.vim it’s as simple as selecting text and running :Gbrowse. The advantage is that you get frozen (changes from from current git HEAD) link, not the relative one which could potentially be wiped out in the future.

Example.

1) Select changes

" Center screen on next/previous selection.
nmap N Nzz
" Last and next jump should center too.
nmap <C-o> <C-o>zz
nmap <C-i> <C-i>zz

2) :'<,'>Gbrowse
3) You get the link!

That’s it!