Neovim Config

init.vim

" This is to install plug.vim incase its not present
if empty(glob('~/.vim/autoload/plug.vim'))
  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

"Plug-ins
call plug#begin('~/.config/nvim/plugged')
" Tools
    Plug 'junegunn/goyo.vim'
    Plug 'junegunn/limelight.vim'
    Plug 'neoclide/coc.nvim', {'branch': 'release'}
    Plug 'dart-lang/dart-vim-plugin'
    Plug 'ctrlpvim/ctrlp.vim'
    Plug 'cespare/vim-toml'
    Plug 'iamcco/markdown-preview.nvim', { 'do': { -> mkdp#util#install() }, 'for': ['markdown', 'vim-plug']}
" Syntax
    Plug 'tpope/vim-markdown'
    Plug 'ap/vim-css-color' "Displays a preview of colors with CSS 
    Plug 'vim-scripts/fountain.vim'
" Color-schemes
    Plug 'ayu-theme/ayu-vim'
" Snippet Engine
    Plug 'SirVer/ultisnips'
" Git Browsing
    Plug 'tpope/vim-fugitive'
    Plug 'junegunn/gv.vim'
call plug#end() 
 
"General Settings
set encoding=UTF-8
filetype plugin indent on  "Enabling Plugin & Indent
syntax on  "Turning Syntax on
set autoread wildmode=longest,list,full
set backspace=indent,eol,start confirm
set shiftwidth=4 autoindent smartindent tabstop=4 softtabstop=4 expandtab  
autocmd FileType * setlocal formatoptions-=c formatoptions-=r formatoptions-=o
set hls is ic
set laststatus=2 cmdheight=1
au BufRead,BufNewFile *.fountain set filetype=fountain
set splitbelow splitright 
set nobackup nowritebackup
set tabstop=4 " tabs are expanded to 4 spaces in the file
set shiftwidth=4 " 4 spaces for each indent
set softtabstop=4 " tabs are displayed as 4 spaces on screen
set nohlsearch
"Status-line
set statusline=
set statusline+=%#IncSearch#
set statusline+=\ %y
set statusline+=\ %r
set statusline+=%#CursorLineNr#
set statusline+=\ %F
set statusline+=%= "Right side settings
set statusline+=%#Search#
set statusline+=\ %l/%L
set statusline+=\ [%c]
set foldminlines=0 "minimum foldable lines set to 0

" use <tab> for trigger completion and navigate to the next complete item
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~ '\s'
endfunction

inoremap <silent><expr> <Tab>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<Tab>" :
      \ coc#refresh()

"Key-bindings
let mapleader=" "
nnoremap <leader>n :Explore<CR>

" ctrlp Fuzzy finder plugin
nnoremap <leader><Space> :CtrlPTag<CR>
let g:ctrlp_cmd = 'CtrlPTag'

" python-provider
let g:loaded_python_provider = 0
let g:python3_host_prog = '/usr/bin/python3.6'

" UltiSnip config
let g:UltiSnipsEditSplit="vertical"
let g:UltiSnipsJumpForwardTrigger="<c-b>"
let g:UltiSnipsJumpBackwardTrigger="<c-z>"
let g:UltiSnipsExpandTrigger="<F2>"

" dart-vim-plugin 
let g:dart_format_on_save = 1

" Keybinding of coc-code-action
nnoremap <leader>n :call CocAction('diagnosticNext')<CR>
nnoremap <leader>N :call CocAction('diagnosticPrevious')<CR> 
vnoremap <leader>a <Plug>(coc-codeaction-selected)
nnoremap <leader>a :call CocAction("doHover")<CR>
nnoremap <leader>e :call CocAction("diagnosticToggle")<CR>

" git browse plugin (gv)
nnoremap <leader>g :GV!<CR>
vnoremap <leader>g :GV<CR>
nnoremap <leader>G :GV?<CR>
vnoremap <leader>G :GV?<CR>

" F2 remaps
nnoremap <F2> @

" Goyo Plugin keybinding , to take aesthetic notes
" in a custom view
nnoremap <leader><ENTER> :Goyo<CR>

nnoremap <leader>, :vsplit <CR>
nnoremap <C-h> :set hlsearch!<CR>
nnoremap <C-s> :source ~/.config/nvim/init.vim<CR>

" Remap NewLine added
nnoremap o o<Esc>
nnoremap O O<Esc>

" Remap Escape Key
imap jj <Esc>

" To Open Terminal
nnoremap <leader>t :terminal <CR>

tnoremap <F2> <C-\><C-n>
nnoremap <Up> :resize +2<CR> 
nnoremap <Down> :resize -2<CR>
nnoremap <Left> :vertical resize +2<CR>
nnoremap <Right> :vertical resize -2<CR>
xnoremap K :move '<-2<CR>gv-gv
xnoremap J :move '>+1<CR>gv-gv
vnoremap <C-c> "+y
nnoremap Q <nop>
nnoremap <C-l> :set number!<CR> :set relativenumber!<CR> 

" Python3 Keybindings
nnoremap <leader>f :%!flake8 
nnoremap <leader>p :%!autopep8 %<CR> 

" xdg-open
nnoremap <leader>o :!xdg-open %<CR>

" Diff between file and its buffer 
nnoremap <leader>d :DiffSaved <CR>

" Tab Navigation Shortcuts
nnoremap <tab>t :tabnew<CR>
nnoremap <tab>k :tabl<CR>
nnoremap <tab>j :tabr<CR>
nnoremap <tab>h :tabp<CR>
nnoremap <tab>l :tabn<CR>
nnoremap <tab>w :tabc<CR>


nnoremap <leader>h <C-W>h
nnoremap <leader>j <C-W>j
nnoremap <leader>k <C-W>k
nnoremap <leader>l <C-W>l


map <F1> :colorscheme ayu<CR>

"Color Settings
hi! Normal ctermbg=NONE guibg=NONE 
hi! NonText ctermbg=NONE guibg=NONE guifg=NONE ctermfg=NONE 

let g:limelight_conceal_ctermfg = 'gray'
let g:limelight_conceal_ctermfg = 240
let g:limelight_conceal_guifg = 'DarkGray'
let g:limelight_conceal_guifg = '#777777'

"Netrw settings
let g:netrw_banner = 0

"Goyo settings
function! s:goyo_enter()
    set noshowmode
    set noshowcmd
    set nocursorline
    CocDisable
    Limelight
endfunction

function! s:goyo_leave()
    set showmode
    set showcmd
    set cursorline
    CocEnable
    Limelight!
endfunction

" Diff between buffer 
" and original file function

function! s:DiffWithSaved()
  let filetype=&ft
  diffthis
  vnew | r # | normal! 1Gdd
  diffthis
  exe "setlocal bt=nofile bh=wipe nobl noswf ro ft=" . filetype
endfunction
com! DiffSaved call s:DiffWithSaved()

autocmd! User GoyoEnter nested call <SID>goyo_enter()
autocmd! User GoyoLeave nested call <SID>goyo_leave() 



set background=dark cursorline termguicolors
let ayucolor = "dark"
colorscheme ayu
set cursorline
set showmode
set showcmd
set wildmenu 

" Apply Highlighting to tab bar
hi TabLine      guifg=#333 guibg=#222 gui=none ctermfg=254 ctermbg=238 cterm=none
hi TabLineSel   guifg=#666 guibg=#464D5E gui=bold ctermfg=231 ctermbg=235 cterm=bold 
hi TabLineFill  guifg=#999 guibg=#222 gui=none ctermfg=254 ctermbg=238 cterm=none



" Shortcuts
"  :% ! xxd 
" Allows you to output the hex dump of the file using
" xxd cli tool to get the hex file or to revert it 
" back to binary