sample.vim

" nvim-completion setup
" Tab S-Tab movement
inoremap <expr> <Tab>   pumvisible() ? "\<C-n>" : "\<Tab>"
inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"
" Config
lua << EOF
require'compe'.setup {
    enabled = true;
    autocomplete = true;
    debug = false;
    min_length = 1;
    preselect = 'enable';
    throttle_time = 80;
    source_timeout = 200;
    incomplete_delay = 400;
    max_abbr_width = 100;
    max_kind_width = 100;
    max_menu_width = 100;
    documentation = true;

    source = {
        path = true;
        buffer = true;
        calc = true;
        nvim_lsp = true;
        nvim_lua = true;
        vsnip = true;
    };
}
EOF
" Mappings
inoremap <silent><expr> <C-Space> compe#complete()
inoremap <silent><expr> <CR>      compe#confirm('<CR>')
inoremap <silent><expr> <C-e>     compe#close('<C-e>')
"inoremap <silent><expr> <C-f>     compe#scroll({ 'delta': +4 })
"inoremap <silent><expr> <C-d>     compe#scroll({ 'delta': -4 })


" LSP Config
" pyright language server is good enough
" install it with `npm i -g pyright`
" gopls language server for go lang
" install it with `GO111MODULE=on go get golang.org/x/tools/gopls@latest`
" find where gopls installed and export it in path
lua << EOF
    -- on_attach is for autocompletion
    require'lspconfig'.pyright.setup{}
    require'lspconfig'.gopls.setup{}
EOF