init.vim perfected Neovim nightly

init.vim

execute 'source' fnamemodify(expand('<sfile>'), ':h').'/main.vim'
" Install Vim-Plug
" iwr -useb https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim |`
"    ni "$(@($env:XDG_DATA_HOME, $env:LOCALAPPDATA)[$null -eq $env:XDG_DATA_HOME])/nvim-data/site/autoload/plug.vim" -Force
" Install Vim-Plug in ~\AppData\Local\nvim\autoload and NOT inside nvim-data
set guifont=FiraCode\ Nerd\ Font:h12
set number
set relativenumber
" set shellslash
" Plug plugin install setup
call plug#begin('~/AppData/Local/nvim/plugged')
Plug 'morhetz/gruvbox'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'wakatime/vim-wakatime'
Plug 'pprovost/vim-ps1'
Plug 'preservim/nerdcommenter'
Plug 'nikvdp/neomux'
Plug 'mhinz/neovim-remote'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'bryanmylee/vim-colorscheme-icons'
Plug 'mhinz/vim-startify'
Plug 'junegunn/vim-journal'
Plug 'junegunn/rainbow_parentheses.vim'

" Functionalities
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-sensible'
Plug 'tpope/vim-surround'
Plug 'majutsushi/tagbar'
Plug 'preservim/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'ryanoasis/vim-devicons'
Plug 'scrooloose/nerdcommenter'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'mhinz/vim-signify'
Plug 'jiangmiao/auto-pairs'
Plug 'junegunn/vim-easy-align'
Plug 'alvan/vim-closetag'
Plug 'tpope/vim-abolish'
Plug 'Yggdroot/indentLine'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'sheerun/vim-polyglot'
Plug 'chrisbra/Colorizer'
Plug 'KabbAmine/vCoolor.vim'
Plug 'vim-scripts/loremipsum'
Plug 'metakirby5/codi.vim'
Plug 'dkarter/bullets.vim'
Plug 'psliwka/vim-smoothie'

" Entertainment
Plug 'dansomething/vim-hackernews'
" Colorizer i.e. Color visualizer
Plug 'norcalli/nvim-colorizer.lua'
" Bash support
Plug 'WolfgangMehner/bash-support'
" View the content of the registers
Plug 'tversteeg/registers.nvim', { 'branch': 'main' }
" Vim Illuminate
Plug 'RRethy/vim-illuminate'
" Kotlin
Plug 'udalov/kotlin-vim'
" Markdown
Plug 'godlygeek/tabular'
Plug 'plasticboy/vim-markdown'
Plug 'instant-markdown/vim-instant-markdown', {'rtp': 'after'}

" All of your Plugins must be added before the following line

call plug#end()

" Configurations for the plugins

let g:gruvbox_contrast_dark='soft'
let g:gruvbox_improved_strings=1
let g:gruvbox_improved_warnings=1

" Airline

let g:airline_powerline_fonts = 1
" let g:airline_section_z = '%3l/%L:%3v'
" let g:airline_left_sep = "\uE0B4"
" let g:airline_right_sep = "\uE0B6"
let g:airline#extensions#coc#enabled = 1
" let g:airline_section_warning = ''
" let g:airline_section_error = ''
let g:neovide_cursor_vfx_mode = "pixiedust"
" Tabline
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#show_tab_type = 1
let g:airline#extensions#tabline#switch_buffers_and_tabs = 1
" let g:airline#extensions#tabline#buffers_label = 'B'
" let g:airline#extensions#tabline#tabs_label = 'T'
let g:airline#extensions#tabline#formatter = 'unique_tail'
" let g:neovide_fullscreen=v:true
" NERDCOMMENTER
" Create default mappings
let g:NERDCreateDefaultMappings = 1

" Add spaces after comment delimiters by default
let g:NERDSpaceDelims = 1

" Use compact syntax for prettified multi-line comments
let g:NERDCompactSexyComs = 1

" Align line-wise comment delimiters flush left instead of following code indentation
let g:NERDDefaultAlign = 'left'

" Set a language to use its alternate delimiters by default
let g:NERDAltDelims_java = 1

" Add your own custom formats or override the defaults
let g:NERDCustomDelimiters = { 'c': { 'left': '/**','right': '*/' } }

" Allow commenting and inverting empty lines (useful when commenting a region)
let g:NERDCommentEmptyLines = 1

" Enable trimming of trailing whitespace when uncommenting
let g:NERDTrimTrailingWhitespace = 1

" Enable NERDCommenterToggle to check all selected lines is commented or not
let g:NERDToggleCheckAllLines = 1

lua require'colorizer'.setup()
syntax on
highlight Pmenu guibg=#363948
highlight PmenuSbar guibg=#363948
"highlight Comment gui=bold " Uncomment if you want comments to be in bold
" Enable True Color Support (ensure you're using a 256-color enabled $TERM, e.g. xterm-256color)
set termguicolors

" Transparent Background
function! TransparentBackground()
    " Uncomment if you are using a translucent terminal and you want nvim to use that.
    " Note: only uncomment the 4 lines below, and not the entire function, as it is being used throughout this config
    highlight Normal guibg=NONE ctermbg=NONE
    highlight LineNr guibg=NONE ctermbg=NONE
    set fillchars+=vert:\│
    highlight VertSplit gui=NONE guibg=NONE guifg=#444444 cterm=NONE ctermbg=NONE ctermfg=gray
endfunction

""" Other Configurations
filetype plugin indent on
set tabstop=4 softtabstop=4 shiftwidth=4 expandtab smarttab autoindent
set incsearch ignorecase smartcase hlsearch
set wildmode=longest,list,full wildmenu
set ruler laststatus=2 showcmd showmode
set list listchars=trail:»,tab:»-
set fillchars+=vert:\
set wrap breakindent
set encoding=utf-8
set textwidth=0
set hidden
set number
set title
call TransparentBackground()

""" Plugin Configurations

" NERDTree
let NERDTreeShowHidden=1
" Exit Vim if NERDTree is the only window left.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif

" Airline
let g:airline_powerline_fonts = 1
let g:airline_section_z = ' %{strftime("%-I:%M %p")}'
let g:airline_section_warning = ''
"let g:airline#extensions#tabline#enabled = 1 " Uncomment to display buffer tabline above

" Neovim :Terminal
tmap <Esc> <C-\><C-n>
tmap <C-w> <Esc><C-w>
"tmap <C-d> <Esc>:q<CR>
autocmd BufWinEnter,WinEnter term://* startinsert
autocmd BufLeave term://* stopinsert

" vim-pydocstring
let g:pydocstring_doq_path = '~/.config/nvim/env/bin/doq'

" Supertab
let g:SuperTabDefaultCompletionType = "<C-n>"

" EasyAlign
xmap ga <Plug>(EasyAlign)
nmap ga <Plug>(EasyAlign)

" indentLine
let g:indentLine_char = '▏'
let g:indentLine_defaultGroup = 'NonText'
" Disable indentLine from concealing json and markdown syntax (e.g. ```)
let g:vim_json_syntax_conceal = 0
let g:vim_markdown_conceal = 0
let g:vim_markdown_conceal_code_blocks = 0

" TagBar
let g:tagbar_width = 30

" fzf-vim
let g:fzf_action = {
  \ 'ctrl-t': 'tab split',
  \ 'ctrl-s': 'split',
  \ 'ctrl-v': 'vsplit' }
let g:fzf_colors =
\ { 'fg':      ['fg', 'Normal'],
  \ 'bg':      ['bg', 'Normal'],
  \ 'hl':      ['fg', 'Comment'],
  \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
  \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
  \ 'hl+':     ['fg', 'Statement'],
  \ 'info':    ['fg', 'Type'],
  \ 'border':  ['fg', 'Constant'],
  \ 'prompt':  ['fg', 'Character'],
  \ 'pointer': ['fg', 'Exception'],
  \ 'marker':  ['fg', 'Keyword'],
  \ 'spinner': ['fg', 'Label'],
  \ 'header':  ['fg', 'Comment'] }

" Bat theme for syntax coloring when viewing files in fzf
let $BAT_THEME='base16'

" Limelight
let g:limelight_conceal_ctermfg = 'gray'
let g:limelight_conceal_guifg = 'gray'

" Startify
let g:startify_fortune_use_unicode = 1

" Startify + NERDTree on start when no file is specified
autocmd VimEnter *
    \   if !argc()
    \ |   Startify
    \ |   NERDTree
    \ |   wincmd w
    \ | endif

" coc.vim START

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("nvim-0.5.0") || has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window.
nnoremap <silent> K :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder.
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" coc.vim END

" signify
let g:signify_sign_add = '│'
let g:signify_sign_delete = '│'
let g:signify_sign_change = '│'
hi DiffDelete guifg=red guibg=none

" FixCursorHold for better performance
let g:cursorhold_updatetime = 100

""" Filetype-Specific Configurations

" HTML, XML, Jinja
autocmd FileType html setlocal shiftwidth=2 tabstop=2 softtabstop=2
autocmd FileType css setlocal shiftwidth=2 tabstop=2 softtabstop=2
autocmd FileType xml setlocal shiftwidth=2 tabstop=2 softtabstop=2
autocmd FileType htmldjango setlocal shiftwidth=2 tabstop=2 softtabstop=2
autocmd FileType htmldjango inoremap {{ {{  }}<left><left><left>
autocmd FileType htmldjango inoremap {% {%  %}<left><left><left>
autocmd FileType htmldjango inoremap {# {#  #}<left><left><left>

" Markdown and Journal
autocmd FileType markdown setlocal shiftwidth=2 tabstop=2 softtabstop=2
autocmd FileType journal setlocal shiftwidth=2 tabstop=2 softtabstop=2

""" Custom Functions

" Trim Whitespaces
function! TrimWhitespace()
    let l:save = winsaveview()
    %s/\\\@<!\s\+$//e
    call winrestview(l:save)
endfunction


""" Custom Mappings

let mapleader=","
nmap <leader>$s <C-w>s<C-w>j:terminal<CR>:set nonumber<CR><S-a>
nmap <leader>$v <C-w>v<C-w>l:terminal<CR>:set nonumber<CR><S-a>
nmap <leader>q :NERDTreeToggle<CR>
nmap \ <leader>q
nmap <leader>w :TagbarToggle<CR>
nmap \| <leader>w
nmap <leader>ee :Colors<CR>
nmap <leader>ea :AirlineTheme
nmap <leader>e1 :call ColorDracula()<CR>
nmap <leader>e2 :call ColorSeoul256()<CR>
nmap <leader>e3 :call ColorForgotten()<CR>
nmap <leader>e4 :call ColorZazen()<CR>
nmap <leader>r :so ~/.config/nvim/init.vim<CR>
nmap <leader>t :call TrimWhitespace()<CR>
nmap <leader>y <C-w>v<C-w>l:HackerNews best<CR>J
nmap <leader>p <Plug>(pydocstring)
xmap <leader>a gaip*
nmap <leader>a gaip*
nmap <leader>s :Rg<CR>
nmap <leader>d :Files<CR>
nmap <leader>f :BLines<CR>
nmap <leader>g :Goyo<CR>
nmap <leader>h :RainbowParentheses!!<CR>
nmap <leader>j :set filetype=journal<CR>
nmap <leader>k :ColorToggle<CR>
nmap <leader>l :Limelight!!<CR>
xmap <leader>l :Limelight!!<CR>
autocmd FileType python nmap <leader>x :0,$!~/.config/nvim/env/bin/python -m yapf<CR>
nmap <silent> <leader><leader> :noh<CR>
nmap <Tab> :bnext<CR>
nmap <S-Tab> :bprevious<CR>
autocmd vimenter * ++nested colorscheme gruvbox
set scl=no
filetype plugin indent on    " required