vimrc

" Make Vim more useful
set nocompatible

" Enforce 256 colors on terminal
set t_Co=256

" Enable syntax highlighting
syntax on

" Load color scheme
colorscheme ron
hi CursorLine term=bold cterm=NONE ctermbg=235

" Highlight current line
set cursorline

" Enable line numbers
set number

" Enhance command-line completion
set wildmenu

" Allow cursor keys in insert mode
set esckeys

" Allow backspace in insert mode
set backspace=indent,eol,start

" Optimize for fast terminal connections
set ttyfast

" Add the g flag to search/replace by default
set gdefault

" Use UTF-8 without BOM
set encoding=utf-8 nobomb

" Change mapleader
let mapleader=","

" Centralize backups, swapfiles and undo history
set backupdir=~/.vim/backups
set directory=~/.vim/swaps
if exists("&undodir")
  set undodir=~/.vim/undo
endif

" Don’t create backups when editing files in certain directories
set backupskip=/tmp/*,/private/tmp/*

" Respect modeline in files
set modeline
set modelines=4

" Enable per-directory .vimrc files and disable unsafe commands in them
set exrc
set secure

" Make tabs as wide as two spaces
set tabstop=2

" Show “invisible” characters
set lcs=tab:▸\ ,trail:·,nbsp:_
set list

" Highlight searches
set hlsearch

" Ignore case of searches
set ignorecase

" Highlight dynamically as pattern is typed
set incsearch

" Always show status line
set laststatus=2

" Disable error bells
set noerrorbells

" Don’t reset cursor to start of line when moving around.
set nostartofline

" Show the cursor position
set ruler

" Don’t show the intro message when starting Vim
set shortmess=atI

" Show the current mode
set showmode

" Show the filename in the window titlebar
set title

" Show the (partial) command as it’s being typed
set showcmd

" Start scrolling three lines before the horizontal window border
set scrolloff=3

" Strip trailing whitespace (,ss)
function! StripWhitespace()
	let save_cursor = getpos(".")
	let old_query = getreg('/')
	:%s/\s\+$//e
	call setpos('.', save_cursor)
	call setreg('/', old_query)
endfunction
noremap <leader>ss :call StripWhitespace()<CR>

" Automatic commands
if has("autocmd")
	" Enable file type detection
	filetype on
	" Treat .json files as .js
	autocmd BufNewFile,BufRead *.json setfiletype json syntax=javascript
	" Treat .md files as Markdown
	autocmd BufNewFile,BufRead *.md setlocal filetype=markdown
  " File type detection. Indent based on filetype.
  filetype plugin indent on
endif

set expandtab       "Use softtabstop spaces instead of tab characters for indentation
set shiftwidth=2    "Indent by 4 spaces when using >>, <<, == etc.
set softtabstop=2   "Indent by 4 spaces when pressing <TAB>

set autoindent      "Keep indentation from previous line
set smartindent     "Automatically inserts indentation in some cases
set cindent         "Like smartindent, but stricter and more customisable