.vimrc

syntax on
set number
highlight LineNr ctermfg=darkgrey

set expandtab
set shiftwidth=4
set smarttab
set tabstop=4
set autoindent
set nowrap

" hl tabs and other kinds of whitespace I don't want
set listchars=tab:>~,nbsp:_,trail:.
set list

function UseTabs()
    set noexpandtab
    set listchars=tab:\ \ ,nbsp:_,trail:.
    set softtabstop=4
endfunction

command! UseTabs call UseTabs()

function WideFile()
    highlight ColorColumn ctermbg=334857348753
    " just break the column colour so it's invisible
endfunction

" column width
function Columns(n)
    set textwidth=0
    let &colorcolumn=join(range(a:n + 1,999),",")
    highlight ColorColumn ctermbg=8
endfunction

call Columns(67)

command! -nargs=1 Columns call Columns(<f-args>)
command! Nocolumns call WideFile()

" go and ebuilds want fucking tabs
" also most of ebuilds/apkbuilds are wide so disable column width
au Filetype go call UseTabs()
au BufRead,BufNewFile,BufEnter *.ebuild,APKBUILD,*pkg/*
    \ call UseTabs() |
    \ call WideFile() |
    \ set syntax=sh

" fstab is usually wide
au BufRead,BufNewFile,Bufenter fstab call WideFile()

" hl all files that end in .Xresources
au BufRead,BufNewFile,BufEnter *.Xresources,*.xresources
    \ set syntax=xdefaults

" F5 to remove trailing whitespace
nnoremap <silent> <F5>
            \ :let _s=@/ <Bar>
            \ :%s/\s\+$//e <Bar>
            \ :let @/=_s <Bar>
            \ :nohl <Bar>
            \ :unlet _s <CR>

" shows what you're typing as a command
set showcmd

" fix backspace behaviour
set backspace=2

" fuzzy matches menu
set wildmenu

" makes find recursive
set path+=**

" tree view for file browser
let g:netrw_liststyle=3

command! Mktags !ctags -R .
" this generates tags for various programming languages
" with this we can jump to a tag with ^] or g^] to find ambiguous
" ones. we can also jump back by using ^t