Simple init.vim config file for converting into init.lua

init.vim

" =============================================================================
" = Utils/Functions =
" =============================================================================

function! CursorMode() abort
    if mode() == 'n'
        return 'NORMAL'
    elseif mode() == 'i'
        return 'INSERT'
    elseif mode() == 'c'
        return 'COMMAND'
    elseif mode() == 'v' || mode() == 'V' || mode() == ''
        return 'VISUAL'
    elseif mode() == 'R' || mode() == 'Rv' || mode() == 'Rx'
        return 'REPLACE'
    endif
endfunction

" =============================================================================
" = Auto Commands =
" =============================================================================

augroup set_invisible_chars
    au!
    au FileType help set nolist
    au FileType fzf set nolist
augroup end

" =============================================================================
" = Plugins =
" =============================================================================

call plug#begin(stdpath('data') . '/plugged')

Plug 'tpope/vim-surround'
Plug 'srcery-colors/srcery-vim'

call plug#end()

" =============================================================================
" = Theming and Looks =
" =============================================================================

set number
set relativenumber
set termguicolors
colorscheme srcery

" =============================================================================
" = Options =
" =============================================================================

" Completion options
set completeopt=menuone,noinsert,noselect
set updatetime=100

" Search options
set ignorecase
set smartcase
set expandtab
set wrapscan

" Indent options
set tabstop=4
set shiftwidth=0
set softtabstop=4
set expandtab
set smartindent

" Line options
set showmatch
set showbreak=+++
set textwidth=120
set scrolloff=5
set linebreak
set colorcolumn=120
set signcolumn='yes'

" Move swapfiles and backupfiles into ~/.cache
set swapfile
set directory=expand('$HOME/.cache/nvim')
set backup
set backupdir=expand('$HOME/.cache/nvim')

" Undo even after closing vim
set undofile
set undodir=expand('$HOME/.cache/nvim')
set undolevels=10000
set history=10000

" Enable a little bit performance
set lazyredraw

" Buffers/Tabs/Windows
set hidden

" Backspace Behaviour
set backspace=indent,eol,start

" Status line
set noshowmode
set statusline=\ %{CursorMode()} %{expand("%:t")} %m%y %=%l/%L\ 

" Better command display
set cmdheight=2

set list
set listchars=tab:▸\ ,trail:·,space:·

" =============================================================================
" = Keybindings =
" =============================================================================

" Leader key
let mapleader=' '

" Map Esc, to perform quick switching between Normal and Insert mode
inoremap jk <ESC>

" Open built-in file explorer
nnoremap <F3> :Ex<CR>

" Edit vimrc
nnoremap <leader>ve :edit $MYVIMRC<CR>

" Source the vimrc to reflect changes
nnoremap <leader>vs :source $MYVIMRC<CR>

" =============================================================================
" = Commands =
" =============================================================================

command! Config edit $MYVIMRC
command! ConfigReload source $MYVIMRC