dotfiles/.vim/vimrc

if filereadable("/usr/local/bin/task")
    packadd vim-taskwarrior
endif

" ###########################################
" # CORE BEHAVIOR
" ###########################################
set nocompatible
set mouse=
set backspace=indent,eol,start

" ###########################################
" # TEMPORARY FILES
" ###########################################
set undofile
set undodir=~/.local/vim/undo//
set backup
set backupcopy=yes
set backupdir=~/.local/vim/backup//
set directory=~/.local/vim/swapfiles//
silent execute '!mkdir -p ~/.local/vim/backup ~/.local/vim/undo ~/.local/vim/swapfiles'

" ###########################################
" # VISUAL CHANGES
" ###########################################
set shm+=I
set noshowcmd
set noshowmode

syntax on
filetype plugin on

set t_Co=256
set background=dark
colorscheme candle-grey-transparent

hi CursorLineNr ctermbg=NONE ctermfg=30 cterm=NONE
hi CursorLine ctermbg=NONE ctermfg=NONE cterm=NONE
hi SpellBad ctermbg=NONE ctermfg=124

match ErrorMsg '\(TODO:\|FIXME\|XXX\|workaround\|WTF\|: error:.*\|\s\+$\| \+\ze\t\)'

" ###########################################
" # VIMDIFF
" ###########################################
set formatoptions=crolj
hi DiffAdd    ctermbg=22   ctermfg=NONE cterm=NONE
hi DiffDelete ctermbg=234  ctermfg=NONE cterm=NONE
hi DiffChange ctermbg=236  ctermfg=NONE cterm=NONE
hi DiffText   ctermbg=red  ctermfg=NONE cterm=NONE
hi VertSplit  ctermbg=NONE ctermfg=246  cterm=NONE
hi FoldColumn ctermbg=NONE ctermfg=251  cterm=NONE
hi Folded     ctermbg=233  ctermfg=251  cterm=NONE
hi ErrorMsg   ctermbg=NONE  ctermfg=160  cterm=NONE

" ###########################################
" # TOGGLES / SETTINGS
" ###########################################

let g:is_posix=1
let g:mapleader = ","

set scrolloff=3
set spelllang=de,en

set hlsearch
set ignorecase
set smartcase

set tabstop=8
set shiftwidth=4
let &softtabstop=&shiftwidth

set expandtab
set smarttab

set textwidth=72
set formatprg=par\ -w72q

set list
set number
set listchars=tab:›,trail:
set fillchars=vert:\|,eob:\ 

" ###########################################
" # STATUS BAR
" ###########################################

function BufInfo()
endfunction

set laststatus=2
set statusline=%#Comment#
set statusline+=[%{toupper(mode())}]
set statusline+=\ <%n/%{g:bufno}>
set statusline+=%=
set statusline+=\ %f:%l:%c
set statusline+=\ %{&fileencoding?&fileencoding:&encoding}\ %{&fileformat}
set statusline+=\ 0x%B
set statusline+=\ %p%%

" ###########################################
" # OMNI COMPLETE
" ###########################################
set omnifunc=syntaxcomplete#Complete
set wildmenu
set wildmode=longest:full,full
function! CleverTab()
   if strpart( getline('.'), 0, col('.')-1 ) =~ '^\s*$'
      return "\<Tab>"
   else
      return "\<C-N>"
   endif
endfunction
inoremap <tab> <C-R>=CleverTab()<CR>

" ###########################################
" # TERMINAL DEBUGGER
" ###########################################
"packadd termdebug
"let g:termdebugger = "egdb"

" ###########################################
" # VIM FZF
" ###########################################
let g:fzf_layout = { 'down': '60%' }
let g:fzf_action = { 'ctrl-t': 'tab split', 'ctrl-x': 'vsplit' }

noreabbrev <expr> ts getcmdtype() == ":" && getcmdline() == 'ts' ? 'FZFTselect' : 'ts'
nmap gt <Plug>(fzf_tags)

nnoremap <leader>g :RG <C-R>=expand("<cword>")<CR><CR>
nnoremap <leader>f :Files<CR>
nnoremap <leader>b :Buffers<CR>
nnoremap <leader>t :Tags<CR>
nnoremap <leader>h :History<CR>

" ###########################################
" # TAGBAR
" ###########################################
let g:tagbar_ctags_bin = "ectags"
noremap <F12> :TagbarToggle<CR>

noremap mm :silent make \| redraw! <CR>

nnoremap <Up>   gk
nnoremap <Down> gj
xnoremap <Up>   gk
xnoremap <Down> gj
inoremap <Up>   <C-O>gk
inoremap <Down> <C-O>gj

" ###########################################
" # TAGS FILE
" ###########################################
set tags=./tags;/
nnoremap gb <c-o>
nnoremap gs :call Cscope('0', expand('<cword>'), 0)<CR>
nnoremap gc :call Cscope('3', expand('<cword>'), 0)<CR>
nnoremap ge :call Cscope('6', expand('<cword>'), 0)<CR>

" ###########################################
" # CSCOPE
" ###########################################
function! LoadCscope()
  let db = findfile("cscope.out", ".;")
  if (!empty(db))
    let path = strpart(db, 0, match(db, "/cscope.out$"))
    set nocscopeverbose " suppress 'duplicate connection' error
    exe "cs add " . db . " " . path
    set cscopeverbose
  " else add the database pointed to by environment variable 
  elseif $CSCOPE_DB != "" 
    cs add $CSCOPE_DB
  endif
endfunction

" ###########################################
" # EASY ALIGN
" ###########################################
xmap ga <Plug>(EasyAlign)
nmap ga <Plug>(EasyAlign)

" ###########################################
" # AUTORUN
" ###########################################
augroup mystuff
    au!
    au VimResized * wincmd =
    au BufEnter * let g:bufno=len(getbufinfo({'buflisted':1}))
    au BufEnter * call LoadCscope()
    au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") | exe "normal! g'\"" | endif
    au BufRead,BufNewFile *.h,*.c set filetype=c.doxygen
    au BufRead,BufNewFile Makefile,/usr/src/*.c,/usr/src/*.h,*.gmk setl sw=8 sts=8 noet
    au BufWritePost vimrc so ~/.vim/vimrc
augroup end