extra

Automatically install missing plugins on startup

autocmd VimEnter *
  \| if !empty(filter(copy(g:plugs), '!isdirectory(v:val.dir)'))
  \|   PlugInstall | q
  \| endif

gx to open GitHub URLs on browser

Press gx to open the GitHub URL for a plugin or a commit with the default browser.

function! s:plug_gx()
  let line = getline('.')
  let sha  = matchstr(line, '^  \zs[0-9a-f]\{7}\ze ')
  let name = empty(sha) ? matchstr(line, '^[-x+] \zs[^:]\+\ze:')
                      \ : getline(search('^- .*:$', 'bn'))[2:-2]
  let uri  = get(get(g:plugs, name, {}), 'uri', '')
  if uri !~ 'github.com'
    return
  endif
  let repo = matchstr(uri, '[^:/]*/'.name)
  let url  = empty(sha) ? 'https://github.com/'.repo
                      \ : printf('https://github.com/%s/commit/%s', repo, sha)
  call netrw#BrowseX(url, 0)
endfunction

augroup PlugGx
  autocmd!
  autocmd FileType vim-plug nnoremap <buffer> <silent> gx :call <sid>plug_gx()<cr>
augroup END

Extra key bindings for PlugDiff

(suggested by @sodapopcan)

• J / K to scroll the preview window
• CTRL-N / CTRL-P to move between the commits
• CTRL-J / CTRL-K to move between the commits and synchronize the preview window
• CTRL-G to browse the diff using gv.vim

function! s:scroll_preview(down)
  silent! wincmd P
  if &previewwindow
    execute 'normal!' a:down ? "\<c-e>" : "\<c-y>"
    wincmd p
  endif
endfunction

" Browsing diff in gv.vim (https://github.com/junegunn/gv.vim)
function! s:diff_in_gv()
  let plug = matchstr(get(filter(getline(1, '.'), 'v:val =~ "^-"'), -1, ''), '- \zs\S\+\ze:')
  if !empty(plug)
    execute 'cd' g:plugs[plug].dir
    GV HEAD@{1}..
    cd -
  endif
endfunction

function! s:setup_extra_keys()
  nnoremap <silent> <buffer> J :call <sid>scroll_preview(1)<cr>
  nnoremap <silent> <buffer> K :call <sid>scroll_preview(0)<cr>
  nnoremap <silent> <buffer> <c-n> :call search('^  \zs[0-9a-f]')<cr>
  nnoremap <silent> <buffer> <c-p> :call search('^  \zs[0-9a-f]', 'b')<cr>
  nnoremap <silent> <buffer> <c-g> :call <sid>diff_in_gv()<cr>
  nmap <silent> <buffer> <c-j> <c-n>o
  nmap <silent> <buffer> <c-k> <c-p>o
endfunction

augroup PlugDiffExtra
  autocmd!
  autocmd FileType vim-plug call s:setup_extra_keys()
augroup END

Plugin completion using VimAwesome

https://gist.github.com/junegunn/5dff641d68d20ba309ce