Customising vim for Mac OS (Big Sur)

vim-enhanced

1 :: Install Latest Cmake (Using the office dmg ) 
     https://cmake.org/download/ 
     Configure the paths for the cmake using the below command 
     sudo "/Applications/CMake.app/Contents/bin/cmake-gui" --install  
     
2 :: Default mac os vim lacks python3 support and many other features ,so we will be compiling vim with full features(can limit if u want)
     Verify first if Xcode developers tools are installed or not ,if not this will install it in mac
     xcode-select --install
     Now lets just move on to compiling vim from source on our distribution.
     mkdir -p .vim/src
     git clone https://github.com/vim/vim.git .vim/src 
     cd .vim/src
     make distclean 
     ./configure \             
    --enable-pythoninterp=dynamic \
    --with-python-config-dir=/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config \
    --enable-python3interp \
    --with-python3-config-dir=/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/config-3.8-darwin \
    --with-features=huge \
    --with-compiledby="yokeshrana https://github.com/hexnor" \
    --enable-fail-if-missing
     make
     sudo make install
     Verify vim installed correctly or not using  "vim --version "
     
 3 :: We will be needing a Plugin manager for installing the plugins ,there are many like vundle ,pathogen and others.
      Right now we will be using the vundle plugin manager 
      git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
      We also need to update the vimrc file. Kindly place the attached vimrc file here ~/.vimrc

 4 :: Installing YouCompleteMe for Code Autocompletion .
      Just add "Plugin 'ycm-core/YouCompleteMe'" in the plugin section in vundle .
      And install the plugin using
      vim +PluginInstall +qall
      cd .vim/bundle/YouCompleteMe
      python3 install.py --all
      In some environment there is issue with loading of python3 libs 
      set pythonthreedll=/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/libpython3.8.dylib

vimrc

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

" The following are examples of different formats supported.
" Keep Plugin commands between vundle#begin/end.
" plugin on GitHub repo
"Plugin 'tpope/vim-fugitive'
" plugin from http://vim-scripts.org/vim/scripts.html
" Plugin 'L9'
" Git plugin not hosted on GitHub
"Plugin 'git://git.wincent.com/command-t.git'
" git repos on your local machine (i.e. when working on your own plugin)
"Plugin 'file:///home/gmarik/path/to/plugin'
" The sparkup vim script is in a subdirectory of this repo called vim.
" Pass the path to set the runtimepath properly.
"Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
" Install L9 and avoid a Naming conflict if you've already installed a
" different version somewhere else.
" Plugin 'ascenator/L9', {'name': 'newL9'}

" All of your Plugins must be added before the following line
" Adding my plugin start
Plugin 'ycm-core/YouCompleteMe'
" Adding my plugin stop
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line
syntax on
set nu
set mouse=v
set tabstop=2
set autoindent
set shiftwidth=2
set softtabstop=2
set backspace=indent,eol,start
set t_Co=256
set background=dark
"vim cpp enhance
"
set pythonthreedll=/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/libpython3.8.dylib