.vimrc

" Pathogen setup
source ~/.vim/pathogen/autoload/pathogen.vim
execute pathogen#infect()

" Enable filetype plugins
filetype plugin indent on

" Set to auto read when a file is changed from the outside
set autoread
set autowrite

" get the ruler back
set ruler
set laststatus=2

set number
set clipboard=unnamed

" :W sudo saves the file 
" (useful for handling the permission-denied error)
command W w !sudo tee % > /dev/null

" Ignore binary files
set wildignore=*.o,*~,*.pyc

" highlight the search text 
set hlsearch

" more better searching
set incsearch 

set magic
set mat=3

" No annoying sound on errors
set noerrorbells
set novisualbell
set t_vb=
set tm=500

" Turn them colors on
syntax enable
colorscheme Tomorrow-Night-Eighties
let g:rehash256 = 1

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Text, tab and indent related
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Make backspace work
set backspace=indent,eol,start

" Use spaces instead of tabs
set expandtab

" Be smart when using tabs ;)
set smarttab

" 1 tab == 4 spaces
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters
set lbr
set tw=500

set ai "Auto indent
set si "Smart indent
set wrap "Wrap lines

" go-vim settings
let g:go_highlight_types = 1
let g:go_highlight_fields = 1
let g:go_highlight_functions = 1
let g:go_highlight_methods = 1
let g:go_metalinter_enabled = ['vet', 'golint', 'errcheck']
let g:go_metalinter_autosave = 1
let g:go_fmt_command = "goimports"
let g:go_highlight_structs = 1  
let g:go_highlight_operators = 1  
let g:go_highlight_build_constraints = 1 

" syntastic settings
let g:kernel_dir = '/usr/src/kernels/' . system('uname -r | tr -d "\n"') . '/include'
let g:syntastic_c_include_dirs = [g:kernel_dir]
let g:syntastic_aggregate_errors = 1
let g:syntastic_always_populate_loc_list = 1
let g:syntastic_auto_loc_list = 0
let g:syntastic_loc_list_height=3
let g:syntastic_check_on_open = 1
let g:syntastic_check_on_wq = 0
let g:syntastic_aggregate_errors = 1

fun! FileTime()
  let ext=tolower(expand("%:e"))
  let fname=tolower(expand('%<'))
  let filename=fname . '.' . ext
  let msg=""
  let msg=msg." ".strftime("(Modified %b,%d %y %H:%M:%S)",getftime(filename))
  return msg
endf

fun! CurTime()
  let ftime=""
  let ftime=ftime." ".strftime("%b,%d %y %H:%M:%S")
  return ftime
endf

"airline 
let g:airline#extensions#syntastic#enabled = 1
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'
let g:airline_theme='tomorrow'
let g:airline_detect_modified=1
let g:airline_detect_paste=1
let g:airline#extensions#tabline#buffer_idx_mode = 1
let g:airline#extensions#bufferline#overwrite_variables = 1
let g:airline#extensions#bufferline#enabled = 1
nmap <leader>1 <Plug>AirlineSelectTab1
nmap <leader>2 <Plug>AirlineSelectTab2
nmap <leader>3 <Plug>AirlineSelectTab3
nmap <leader>4 <Plug>AirlineSelectTab4
nmap <leader>5 <Plug>AirlineSelectTab5
nmap <leader>6 <Plug>AirlineSelectTab6
nmap <leader>7 <Plug>AirlineSelectTab7
nmap <leader>8 <Plug>AirlineSelectTab8
nmap <leader>9 <Plug>AirlineSelectTab9
nmap <leader>- <Plug>AirlineSelectPrevTab
nmap <leader>+ <Plug>AirlineSelectNextTab
let g:airline#extensions#quickfix#quickfix_text = 'Quickfix'
let g:airline#extensions#quickfix#location_text = 'Location'

"tree view
noremap <Leader><Tab> :call VexToggle(getcwd())<CR>
nnoremap <Leader>b :bp<CR>
let g:netrw_banner = 0
let g:netrw_liststyle = 3
let g:netrw_browse_split = 4
let g:netrw_altv = 1

augroup NetrwGroup
  autocmd! BufEnter * call NormalizeWidths()
augroup END

fun! VexToggle(dir)
    if exists("t:vex_buf_nr")
        call VexClose()
    else
        call VexOpen(a:dir)
    endif
endf

fun! VexOpen(dir)
    let g:newrw_browse_split=4
    let vex_width = 25

    execute "Vexplore " . a:dir
    let t:vex_buf_nr = bufnr("%")
    wincmd H

    call VexSize(vex_width)
endf

fun! VexClose() 
    let cur_win_nr = winnr()
    let target_nr = ( cur_win_nr == 1 ? winnr("#") : cur_win_nr )

    1wincmd w
    close
    unlet t:vex_buf_nr

    execute (target_nr -1) . "wincmd w"
    call NormalizeWidths()
endf

fun! VexSize(vex_width)
    execute "vertical resize" . a:vex_width
    set winfixwidth
    call NormalizeWidths()
endf

fun! NormalizeWidths()
    let eadir_pref = &eadirection
    set eadirection=hor
    set equalalways! equalalways!
    let &eadirection = eadir_pref
endf