Gruvbox theme Vim configuration with auto-installation

.vimrc

" Auto-install vim-plug if not present
let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
if empty(glob(data_dir . '/autoload/plug.vim'))
  silent execute '!curl -fLo '.data_dir.'/autoload/plug.vim --create-dirs  https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

" Initialize plugin system with explicit directory
call plug#begin('~/.vim/plugged')

" Install Gruvbox theme
Plug 'morhetz/gruvbox'

" Add gptme.vim plugin
Plug '[email protected]:ErikBjare/gptme.vim'

" Initialize plugin system
call plug#end()

" Enable syntax highlighting
syntax on

" Enable file type detection
filetype plugin indent on

" Set basic vim options
set autoindent
set tabstop=4
set shiftwidth=4
set expandtab
set ruler
set laststatus=2

" Enable true color support if available
if exists('+termguicolors')
  set termguicolors
endif

" Set color scheme settings
set background=dark
let g:gruvbox_contrast_dark = 'light'

" Try to set colorscheme, fail silently if not installed yet
try
  colorscheme gruvbox
catch
  " Colorscheme not found, will be installed on first run
endtry