.vimrc

" auto install vimplug
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

" Specify a directory for plugins
call plug#begin('~/.vim/plugged')

" Plugins
Plug 'dracula/vim', { 'as': 'dracula' }
Plug 'w0rp/ale'
Plug 'tpope/vim-commentary'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'mhinz/vim-startify'
Plug 'mhinz/vim-signify'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'scrooloose/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin'

" Initialize plugin system
call plug#end()

" Global configuration
" 	apply theme
syntax on
color dracula

" 	show line numbers
set number

"	enable mouse
set mouse=a

" tabs
set tabstop=4
set shiftwidth=4
" set expandtab

" 	fix backspace
set backspace=indent,eol,start

" 	cycle through buffers
:nnoremap <Tab> :bnext<CR>
:nnoremap <S-Tab> :bprevious<CR>

"	auto source changes to .vimrc
autocmd! bufwritepost $MYVIMRC source $MYVIMRC

" 	set auto chdir to the current buffer working directory
autocmd BufEnter * silent! lcd %:p:h

" Plugin specific configurations
"
" NerdTree
" 	maps nerdtree to ctrl-n
map <C-n> :NERDTreeToggle<CR>
"	closes nerdtree if its the last open window
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
" 	opens nerdtree on opening a folder
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | exe 'cd '.argv()[0] | endif