dotfiles/vim/vimrc

" ==============================================================================
" vimrc file for niblock :: Use `:so %` to re-source after changes
" ==============================================================================

" ==============================================================================
" General Settings
" ==============================================================================
set nocompatible                                " Why? (https://goo.gl/2RiJoo)

if !exists('g:syntax_on')
    syntax enable                               " Syntax hilighting
endif

filetype plugin indent on                       " Enable filetype/indent/plugins
set encoding=utf-8                              " Character encoding
set spelllang=en_us                             " Set default dictionary
set autoread                                    " Auto-reload modified files
set hidden                                      " Allow for un-saved buffers
set autochdir                                   " Change directory automatically

set autoindent                                  " Enable auto-indentation
set expandtab                                   " Spaces for tab
set shiftwidth=4                                " Spaces per shift
set softtabstop=4                               " Spaces to use when editing

set number                                      " Enable line numbers
set wrap                                        " Wrap text
set textwidth=80                                " How long a line is
set winwidth=90                                 " Minimum width of a window
set scrolloff=5                                 " 5 line scroll buffer

set foldmethod=indent                           " Fold on indent
set foldlevelstart=99                           " No default folding

set wildmenu                                    " Enable wildmenu
set wildmode:longest:full,full                  " Configure wildmenu
set ignorecase smartcase                        " Ignore case, unless it matters
set incsearch                                   " Zoom to results as I search
set nohlsearch                                  " Disable search highlighting

let g:netrw_liststyle=3                         " Netrw Tree list style
let g:netrw_banner=0                            " Disable the netrw banner

augroup ruby_settings                           " Custom settings: Ruby{-like}
     autocmd!
     autocmd FileType ruby,eruby,yaml 
                 \ setlocal shiftwidth=2 
                 \          softtabstop=2
                 \          makeprg=rubocop
augroup END

augroup spellcheckr                             " Spelling, for some files...
    autocmd!
    autocmd BufNewFile,BufRead *.md,*.rdoc,*.txt,*.wiki 
                \ setlocal spell
augroup END

augroup lintr                                   " Linting, based on :make!
    autocmd!
    autocmd BufWritePost *.rb,*.sh
                \ silent make! <afile> | silent redraw!
    autocmd QuickFixCmdPost [^l]* cwindow
augroup END
" ==============================================================================
" Colors
" ==============================================================================
augroup user_stl_colors                         " Custom status-line colors
    autocmd!
    autocmd ColorScheme *
                \ hi User1 term=bold cterm=bold ctermfg=Red ctermbg=DarkGrey |
                \ hi User2 term=bold cterm=bold ctermfg=Cyan ctermbg=DarkGrey |
                \ hi User3 term=bold cterm=bold ctermfg=White ctermbg=DarkGrey |
                \ hi User4 ctermfg=White ctermbg=Black |
                \ hi User5 ctermfg=150 ctermbg=Black |
                \ hi User6 ctermfg=Grey ctermbg=Black
augroup END

if filereadable(expand('~/.vim/colors/minimalist.vim'))
    colorscheme minimalist                      " Set colorscheme
endif
" ==============================================================================
" Status Line
" ==============================================================================
function! GitBranch() abort                     " Fetch the Git branch of cwd
    let l:branchname = system("git rev-parse --abbrev-ref HEAD 2>/dev/null
                \ | tr -d '\n'")
    return strlen(l:branchname) > 0 ? '#'.l:branchname : ''
endfunction

set laststatus=2                                " Enable the statusline
set statusline=                                 " Initialize it
set statusline+=%3*%m                           " Modified flag
set statusline+=%6*%{expand('%:p:h')}/          " Full-path to current buffer
set statusline+=%4*%t                           " File name
set statusline+=%5*%{GitBranch()}               " Show Git branch, if applicable
set statusline+=%=                              " Switch to right-side
set statusline+=%4*%y\                          " Filetype
set statusline+=%3*                             " Color change (see :hi)
set statusline+=\|%4l\:%2c\|                    " Line and column
set statusline+=%2*%{&spell?'[SPELL]':''}       " Spell flag
set statusline+=%1*%r%0*                        " Read-only flag
" ==============================================================================
" Mappings
" ==============================================================================
let mapleader = ','
" Make moving up/down work on wrapped lines of text
nnoremap <silent> j gj
nnoremap <silent> k gk
nnoremap <silent> ^ g^
nnoremap <silent> $ g$
" Toggle fold with space if we're in a fold, otherwise just space
nnoremap <silent> <Space> @=(foldlevel('.')?'za':"\<Space>")<CR>
vnoremap <Space> zf
" Allow saving of files as sudo when I forgot to start vim using sudo.
cmap w!! w !sudo tee > /dev/null %
" Remove Trailing Whitespaace
nnoremap <silent> <leader>rtw :<C-u>%s/\s\+$//e<CR>
" Open help topic in a full new tab
command! -nargs=1 -complete=help H :tabnew | :set buftype=help | :h <args>
" Simple mapping to dotfiles directory (f = current tab; F = new tab)
nnoremap <silent> <leader>f :<C-u>edit ~/.dotfiles/<CR>
nnoremap <silent> <leader>F :<C-u>tabnew ~/.dotfiles/<CR>
" Emulate vim-vinegar
nnoremap <silent> - :silent edit <C-R>=empty(expand('%')) ? '.' : expand('%:p:h')<CR><CR>
" ==============================================================================
" Plugins
" ==============================================================================
if filereadable(expand('~/.vimrc-plugins'))
    source ~/.vimrc-plugins
endif