.vimrc

" [[ Keymaps ]]

" Remap to <Esc>
inoremap <C-c> <Esc>

" Set leader
let mapleader=" "

" Paste the most recent yank
noremap <Leader>p "0p

" Load the system clipboard register
noremap <Leader>= "+

" Buffer navigation
nnoremap <Leader>sb :ls<CR>:b<Space>

" Yank to end of line
nnoremap Y y$

" [[ Options ]]

" Display line numbers
set number
set relativenumber

" Change line numbers depending on the mode
autocmd InsertEnter * set norelativenumber
autocmd InsertLeave * set relativenumber

" Disable line wrapping
set nowrap

" Search settings
set nohlsearch
set ignorecase
set smartcase

" Indentation settings
set tabstop=4
set shiftwidth=0 " follow tabstop
set softtabstop=-1 " follow shiftwidth
set list
set listchars=tab:\ \ ,trail:·,nbsp:␣

" Automatically focus new splits
set splitright
set splitbelow

" Keep cursor above/below N lines
set scrolloff=12

" Enable mouse usage
set mouse=a

" Disable error sounds
set noerrorbells
set novisualbell

" Save undo history
if has('persistent_undo')
  if !isdirectory($HOME . '/.vim/undo')
    call mkdir($HOME . '/.vim/undo', 'p')
  endif
  set undodir=$HOME/.vim/undo
  set undofile
endif

" Set terminal colors
if exists('+termguicolors')
  let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
  let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
  set termguicolors
endif

" [[ Plugins ]]

" Install vim-plug if not found
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
endif

" Run PlugInstall if there are missing plugins
autocmd VimEnter * if len(filter(values(g:plugs), '!isdirectory(v:val.dir)'))
  \| PlugInstall --sync | source $MYVIMRC
\| endif

" Load plugins
call plug#begin()
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-sensible'
Plug 'tpope/vim-sleuth'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-vinegar'
Plug 'sonph/onehalf', { 'rtp': 'vim' }
call plug#end()

" Set colorscheme
colorscheme onehalfdark