configs/vimrc

" --------------
" Vundle plugins
" --------------

set nocompatible
filetype off
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

Plugin 'VundleVim/Vundle.vim'
Plugin 'embear/vim-localvimrc'
Plugin 'rust-lang/rust.vim'
Plugin 'vim-syntastic/syntastic'

" standard python highlighting is broken for f-strings
Plugin 'vim-python/python-syntax'

call vundle#end()
filetype plugin indent on

" -------------
" General setup
" -------------

" Automatically remove all trailing whitespace
"autocmd BufWritePre * :%s/\s\+$//e

" Source completion
" Automatically open and close the popup menu / preview window
"set omnifunc=syntaxcomplete#Complete
"au CursorMovedI,InsertLeave * if pumvisible() == 0|silent! pclose|endif
"set completeopt=menuone,menu,longest,preview
set completeopt-=preview

" ------
" Layout
" ------

" try 256 color mode if envvar is set
set t_Co=88
if $TERM == 'xterm-256color' | set t_Co=256 | endif

if (has("termguicolors"))
 set termguicolors
endif

" For Neovim 0.1.3 and 0.1.4
let $NVIM_TUI_ENABLE_TRUE_COLOR=1

" Color scheme
syntax enable
if &diff
    autocmd VimEnter * colorscheme blue
else
    colorscheme darkspectrum
    " Transparent background
    highlight Normal guibg=NONE ctermbg=NONE
endif

set fileformats=unix    " obviously...
set ruler               " show cursor location
set modeline            " read modelines
"set number              " show line numbers
set title               " change the terminal's title
set nocompatible        " disable Vi-compatibility
set laststatus=2        " always display filename
set textwidth=80        " break line at 80 chars
set scrolloff=5         " always keep current line five lines off the screen edge

" Tabs are for heathens, we indent with spaces
set expandtab smarttab
set shiftwidth=4 tabstop=8 softtabstop=-1
set autoindent copyindent
set shiftround
set backspace=indent,eol,start

" Highlight tabs and trailing spaces
set listchars=tab:\|\ ,trail:-
set list

" Don't give people epilepsy
set visualbell t_vb= noerrorbells

" Enable wildmenu for browsing files in :e command
set wildmenu
set wildcharm=<TAB>
set wildignore=*.swp,*.bak,*.pyc,*.class,*.o,*.bc,*.old,*.cmi,*.cmx,*.aux

" File explorer
let g:netrw_liststyle=3  " Use tree-mode as default view
let g:netrw_preview=1    " Preview window shown in a vsplit

" Customize Python syntax highlighting
let g:python_highlight_all = 1
let g:python_highlight_func_calls = 0
highlight pythonConditional cterm=bold gui=bold
highlight pythonException cterm=bold gui=bold
highlight pythonImport cterm=bold gui=bold
highlight pythonOperator cterm=bold gui=bold
highlight pythonRaiseFromStatement cterm=bold gui=bold
highlight pythonRepeat cterm=bold gui=bold
highlight pythonStatement cterm=bold gui=bold

let g:syntastic_python_flake8_exec = 'python3'
let g:syntastic_python_flake8_args = ['-m', 'flake8']
let g:syntastic_python_python_exec = 'python3'
let g:syntastic_python_checkers = ['python', 'flake8']

" ---------
" Searching
" ---------

set history=1000 undolevels=1000
set hlsearch                " highlight search terms
set incsearch               " show search matches as you type
set ignorecase smartcase    " clever case sensitivity

" ---------------------------
" Mouse selection & scrolling
" ---------------------------

"set mouse=a

map <ScrollWheelUp> <C-Y>
map <S-ScrollWheelUp> <C-U>
map <ScrollWheelDown> <C-E>
map <S-ScrollWheelDown> <C-D>

" -----------------------
" Key bindings / commands
" -----------------------

" Use ';' instead of ':'
nnoremap ; :

" Use Q for formatting the current paragraph (or selection)
vmap Q gq
nmap Q gqap

" Solve line jumping with long, wrapped lines (use [jk] for normal behaviour)
nnoremap <down> gj
nnoremap <up> gk

" Window navigation with ctrl + [hjkl]
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l

" Shortcuts for common commands
nmap <silent> ,/  :nohlsearch<CR>
nmap <silent> ,mm :!make<CR>
nmap <silent> ,ml :!make clean<CR>
nmap <silent> ,mt :!make check<CR>
nmap <silent> ,md :!make dist<CR>
nmap <silent> ,mb :!make -B<CR>

" Use w!! to save a file as root if opened with insufficient permissions
cmap w!! w !sudo tee % >/dev/null

" ---------------
" Syntax / indent
" ---------------

" Some files only have 2 spaces indent
autocmd FileType css,less,sass,html,ocaml,bib,llvm,tex,markdown,yaml set shiftwidth=2 tabstop=2

" Make pfd's readable
autocmd BufReadPre *.pdf set ro nowrap
autocmd BufReadPost *.pdf silent %!pdftotext "%" -nopgbrk -layout -q -eol unix -

" Status line highlight
highlight StatusLine ctermbg=black ctermfg=grey

" Syntax highlighting by extension
autocmd BufNewFile,BufRead *.cvc set filetype=c
autocmd BufNewFile,BufRead *.fc set filetype=c
autocmd BufNewFile,BufRead *.less set filetype=less
autocmd BufNewFile,BufRead *.md set filetype=markdown
autocmd BufNewFile,BufRead *.gv set filetype=dot
autocmd BufNewFile,BufRead *.ll set filetype=llvm
autocmd BufNewFile,BufRead *.inc set filetype=sh
autocmd BufNewFile,BufRead *.mustache set filetype=html
autocmd BufNewFile,BufRead *.ts set filetype=javascript
autocmd BufNewFile,BufRead *.scss set filetype=sass
autocmd BufNewFile,BufRead *.fc,*.fh set filetype=fennec
autocmd BufNewFile,BufRead *.dis set filetype=dis

" Highlight and underline badly spelled words when spellcheck is on
highlight SpellBad guisp=#fcaf3e cterm=underline

" Auto enable spellchecking for text-based files
autocmd FileType tex,markdown setlocal spell nonu

" 2 spaces for tabs in CSS/YAML
autocmd FileType css,yaml set sw=2

" -----------------------
" Additional local config
" -----------------------

if filereadable($HOME . '/.vimrc_local')
    source ~/.vimrc_local
endif