init.vim

" Auto update file when it is changed outside vim
" TODO: does not work as it expected with nvim
set autoread

" Aesthetic line numeration
set nu rnu


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Text, tab and indent related
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Use spaces instead of tabs
set expandtab

" Smart 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


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Autocompile, file format
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Run golang file
au FileType go map <F8> :w <CR> : !clear; go run % <CR>

" Auto pep8 for python (autopep8 is required)
au FileType python map <F7> :w <CR> : !clear; autopep8 --in-place % <CR> :e <CR>
" Run python3 file
au FileType python map <F8> :w <CR> : !clear; python3 % <CR>

" Auto format C/C++ file (clang-format is required)
au FileType c,cpp,objc map <F7> :w <CR> : !clear; clang-format % >> temp.cpp; mv temp.cpp % <CR> :e <CR>
" Build & run C++ file with g++ -std=c++11
au FileType cpp map <F8> :w <CR> : !clear; ~/Projects/cpp/build_n_run_cpp11.sh % <CR>

" Build & run C file with gcc -std=c99
au FileType c map <F8> :w <CR> : !clear; ~/Projects/cpp/build_n_run_c99.sh % <CR>
" Build & run C file with tcc
au FileType c map <F9> :w <CR> : !clear; tcc -run -g % <CR>


" Print int main() to C file
function! CIntma()
call append(line('^'), [ '#include <stdio.h>'
\                      , ''
\                      , 'int main(int argc, char *argv[]) {'])
call append(line('$'), [ '    printf("Hello World");'
\                      , '    return 0;'
\                      , '}'])
endfunction
" :Intma function in .c files
au FileType c command Intma :call CIntma()


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Plugins
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set nocompatible              " don't remember what it actually does

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

" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'
Plugin 'Valloric/YouCompleteMe'
Plugin 'jiangmiao/auto-pairs'
Plugin 'scrooloose/nerdtree'
Plugin 'junegunn/fzf'
Plugin 'junegunn/fzf.vim'

highlight Pmenu ctermfg=0 ctermbg=15 guifg=#ffffff guibg=#707880

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


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Other shortcuts
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Open NERDTree with Ctrl-n
" TODO: auto reload tree
map <C-n> :NERDTreeToggle<CR>

" split screen navigation
nnoremap <C-J> <C-W><C-J>
nnoremap <C-K> <C-W><C-K>
nnoremap <C-L> <C-W><C-L>
nnoremap <C-H> <C-W><C-H>

" Smart search
" silversearcher-ag required
map <F4> :Ag<CR>

" Disable bells
set visualbell
set t_vb=

" Copy from vim - ctrl+c
" Paste to vim - ctrl+p
" gvim required
vnoremap <C-c> "*y :let @+=@*<CR>
map <C-p> "+P

" Check spelling
map <F6> :setlocal spell! spelllang=en_us<CR>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" nvim color scheme
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
colorscheme darkblue


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Status line
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set laststatus=2

function! GitBranch()
  return system("git rev-parse --abbrev-ref HEAD 2>/dev/null | tr -d '\n'")
endfunction

function! StatuslineGit()
  let l:branchname = GitBranch()
  return strlen(l:branchname) > 0?'  '.l:branchname.' ':''
endfunction

set statusline=
" set statusline+=%#CursorColumn#
" set statusline+=%1*  "switch to User1 highlight
set statusline+=%#LineNr#
set statusline+=\ %f
set statusline+=%{StatuslineGit()}
" set statusline+=%m\
set statusline+=%=
" set statusline+=\ %y
set statusline+=%y
set statusline+=\ %{&fileencoding?&fileencoding:&encoding}
set statusline+=\[%{&fileformat}\]
set statusline+=\ %p%%
set statusline+=\ %l:%c
set statusline+=\