.vimrc

" This is Kat's .vimrc file

set nocompatible              " required for Vundle 
filetype off                  " required for Vundle

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

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

" go-vim (golang) support
Plugin 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }

" Run Ruby tests
Plugin 'skalnik/vim-vroom'

" All Plugins must be added before the following line
call vundle#end()
filetype plugin indent on    " required for Vundle

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" BASIC EDITING CONFIGURATION
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set nocompatible
" allow unsaved background buffers and remember marks/undo for them
set hidden
" remember more commands and search history
set history=10000
set expandtab
set tabstop=4
set shiftwidth=4
set softtabstop=4
set autoindent
set laststatus=2
set showmatch
set incsearch
set hlsearch
" make searches case-sensitive only if they contain upper-case characters
set ignorecase smartcase
" highlight current line
set cursorline
set cmdheight=1
set switchbuf=useopen
" Always show tab bar at the top
set showtabline=2
set winwidth=79
" allow backspacing over everything in insert mode
set backspace=indent,eol,start
" display incomplete commands
set showcmd
" Enable highlighting for syntax
syntax on
" Enable file type detection.
" Use the default filetype settings, so that mail gets 'tw' set to 72,
" 'cindent' is on in C files, etc.
" Also load indent files, to automatically do language-dependent indenting.
" make tab completion for files/buffers act like bash
set wildmenu
let mapleader=","
" Insert only one space when joining lines that contain sentence-terminating
" punctuation like `.`.
set nojoinspaces
" If a file is changed outside of vim, automatically reload it without asking
set autoread

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" CUSTOM AUTOCMDS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
augroup vimrcEx
  " Clear all autocmds in the group
  autocmd!
  autocmd FileType text setlocal textwidth=78
  " Jump to last cursor position unless it's invalid or in an event handler
  autocmd BufReadPost *
    \ if line("'\"") > 0 && line("'\"") <= line("$") |
    \   exe "normal g`\"" |
    \ endif

  "for ruby, autoindent with two spaces, always expand tabs
  autocmd FileType ruby,haml,eruby,yaml,html,sass,cucumber set ai sw=2 sts=2 et

  autocmd! BufRead,BufNewFile *.sass setfiletype sass

  autocmd! BufNewFile,BufRead *.md setlocal ft=
augroup END

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" COLOR
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set t_Co=256 " 256 colors
set background=dark
" colorscheme elflord " good for slides
colorscheme torte

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" STATUS LINE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
:set statusline=%<%f\ (%{&ft})\ %-4(%m%)%=%-19(%3l,%02c%03V%)

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" MULTIPURPOSE TAB KEY
" Indent if we're at the beginning of a line. Else, do completion.
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! InsertTabWrapper()
    let col = col('.') - 1
    if !col || getline('.')[col - 1] !~ '\k'
        return "\<tab>"
    else
        return "\<c-p>"
    endif
endfunction
inoremap <expr> <tab> InsertTabWrapper()
inoremap <s-tab> <c-n>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" SHORTCUT TO REFERENCE CURRENT FILE'S PATH IN COMMAND LINE MODE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
cnoremap <expr> %% expand('%:h').'/'

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" RENAME CURRENT FILE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! RenameFile()
    let old_name = expand('%')
    let new_name = input('New file name: ', expand('%'), 'file')
    if new_name != '' && new_name != old_name
        exec ':saveas ' . new_name
        exec ':silent !rm ' . old_name
        redraw!
    endif
endfunction
map <leader>n :call RenameFile()<cr>