init.vim

" ~/.config/nvim/init.vim
" Author: Max Lay
if &compatible
 set nocompatible
endif

" Plugins
" Add the dein installation directory into runtimepath
set runtimepath+=~/.cache/dein/repos/github.com/Shougo/dein.vim
call dein#begin(expand('~/.vim/dein')) " plugins' root path

call dein#add('Shougo/dein.vim')

" File navigation and manipulation
call dein#add('scrooloose/nerdtree', {'on_map': '<F2>'})
" More precise, faster matcher than CtrlP
call dein#add('junegunn/fzf')
call dein#add('junegunn/fzf.vim')
call dein#add('pbogut/fzf-mru.vim')

" Find (and replace)
call dein#add('rking/ag.vim')
call dein#add('tpope/vim-abolish')

" Git
call dein#add('mattn/webapi-vim')
call dein#add('mattn/gist-vim', {'on_cmd': ['Gist']})
call dein#add('tpope/vim-fugitive', {'on_cmd': ['Git', 'Gstatus', 'Gwrite', 'Glog', 'Gcommit', 'Gblame', 'Ggrep', 'Gdiff']})

" Tmux
call dein#add('christoomey/vim-tmux-navigator')
call dein#add('tmux-plugins/vim-tmux-focus-events')

" Theme
call dein#add('morhetz/gruvbox')

" Autocomplete
call dein#add('Shougo/deoplete.nvim')
call dein#add('Raimondi/delimitMate', {'on_map': { 'i' : ['(', '[', '{' ]}})

" Actions
call dein#add('scrooloose/nerdcommenter')
call dein#add('FooSoft/vim-argwrap')

" Allows repeat to be used with some plugins
call dein#add('tpope/vim-repeat', {'on_map': '.'})
" Fixes increment and decrement for dates/times
call dein#add('tpope/vim-speeddating')

" Motions
call dein#add('tpope/vim-surround', {'on_map': {'n': ['cs', 'ds', 'ys'], 'x': 'S'}, 'depends': 'vim-repeat'})
call dein#add('easymotion/vim-easymotion')
call dein#add('godlygeek/tabular', {'on_cmd': ['Tab', 'Tabularize'] , 'augroup': 'tabular'})

" Text objects
" Adds function/list/tuple argument object support
call dein#add('b4winckler/vim-angry')
" Adds a huge number of text objects
call dein#add('wellle/targets.vim')
" Allows simple selection of text objects (eg. viv)
call dein#add('gorkunov/smartpairs.vim')

" Syntax checking/linting
call dein#add('w0rp/ale')

" Snippets
call dein#add('SirVer/ultisnips')
call dein#add('honza/vim-snippets')

" Filetypes
" Guess indents based on file and containing directory
 call dein#add('tpope/vim-sleuth')

" Erlang
call dein#add('vim-erlang/vim-erlang-tags')
call dein#add('vim-erlang/vim-erlang-compiler')
call dein#add('vim-erlang/vim-erlang-omnicomplete')
call dein#add('vim-erlang/vim-erlang-runtime')
call dein#add('vim-erlang/erlang-motions.vim')
call dein#add('vim-erlang/vim-dialyzer')
call dein#add('vim-erlang/vim-rebar')

" Traverse the undo/redo tree
call dein#add('sjl/gundo.vim')

call dein#end()

" Improve startup time
set guioptions=M

filetype on
filetype plugin on
filetype indent on

syntax on
set shell=/bin/bash

"Easy ways of getting into normal mode
inoremap kk <ESC>
inoremap jj <ESC>
let mapleader = "\<Space>"

" General
"Uncomment for mouse support
"set mouse=a
" Fix backspace
set backspace=indent,eol,start
"Disable ex mode
map q: <Nop>
nnoremap Q <nop>
" Increase command history
set history=200
"Use ; as :
nnoremap ; :
"Removes error message when navigating away from unsaved buffer
set hidden
"cd
map <Leader>cd :cd %:p:h<cr>:pwd<cr>
"Saving
nmap <Leader>w :w!<cr>
"Sudo write
cmap w!! w !sudo tee % >/dev/null
"Reload file if edits happen somewhere else
set autoread
"Auto resize panes on terminal resize
autocmd VimResized * wincmd =

"Terminal setup
set termencoding=utf-8
set fileencodings=utf8,cp1251
set encoding=utf8
"fixes terminal draw bug in Tmux
set t_ut=
"Beeps off, not that I ever use a terminal that does
set noerrorbells visualbell t_vb=
if has('autocmd')
    autocmd GUIEnter * set visualbell t_vb=
endif

" Indentation
function UseTabs(...)
    if a:0 > 0
       let width = a:1
    else
       let width = 4
    end
    set noexpandtab
    let &tabstop=width
endfunction
command UseTabs call UseTabs()

function UseSpaces(...)
    if a:0 > 0
       let width = a:1
    else
       let width = 4
    end
    let &softtabstop=width
    let &shiftwidth=width
    set expandtab
endfunction
command UseSpaces call UseSpaces()
" Commented out because Vim Sleuth should figure it out automatically
"set softtabstop=4
"set shiftwidth=4
"set expandtab
"set smarttab
set autoindent
set autoindent
"Indent entire document
map <Leader><C-i> mzgg=G'z

"Statusline stuff
"Display status line always
set laststatus=2
set ruler
set showcmd
set ch=1

"Ignore some file types
set wildmenu                    " Cool cmd completion
set wildignorecase
"%% is directory containing current file
cabbr <expr> %% expand('%:p:h')
set wildignore+=.hg,.git,.svn   " Version control
set wildignore+=*.pyc           " Python byte code
set wildignore+=*.beam           " Erlang byte code
set wildignore+=*.jpg,*.bmp,*.gif,*.png,*.jpeg
set wildignore+=*.class,*.o

"Display whitespace
set listchars=tab:>.,trail:.
set list

"Line numbers and limits
set number                      " Show line numbers
set relativenumber
set cc=100                       " Ver line in 80 column
set cursorline

"Folds
set foldmethod=indent
set foldcolumn=1
set foldlevel=99

"Movement
set scrolloff=8                 " Start scrolling n lines before border
"Scroll wrapped lines normally
noremap  <buffer> <silent> k gk
noremap  <buffer> <silent> j gj
"Alternate scrolling
map x27j 5j
map x27k 5k
map x27h 5h
map x27l 5l
"End of line
inoremap <C-e> <C-o>$
"Start of line
inoremap <C-a> <C-o>^

" Search
set hlsearch                    " Highlight searches
set incsearch                   " Highlight dynamically as pattern is typed
set ignorecase                  " Ignore case of searches
" Search and replace word under curser with F4
nnoremap <F4> :%s/<c-r><c-w>//g<c-f>$F/i
" Leader / to clear search highligting
nmap <Leader>/ :nohlsearch<CR>

" Fuzzy find
nmap <C-p> :Files<Cr>
nmap <C-b> :Buffers<Cr>
nmap <C-c> :Commits<Cr>
nmap <C-n> :FZFMru<Cr>

"Allows undo after file is closed
if exists("&undodir")
    set undofile
    set undodir=/tmp
endif
"Swap files and backup are super annoying. I save often
set noswapfile
set nobackup

"Theme
set background=dark
set t_Co=256
colorscheme gruvbox

"Nerdtree file browser
let NERDTreeDirArrows=0
let NERDTreeShowHidden=1
nmap <F2> :NERDTreeToggle<CR>
let NERDTreeIgnore=['\.py[co]$', '\~$']

"Gundo
nnoremap <F3> :GundoToggle<CR>

"Tagbar
nmap <Leader>t :TagbarToggle<CR>

"Set cursorcolumn
nmap <Leader>scc :set cuc<CR>
nmap <Leader>Scc :set nocuc<CR>

"Buffers
noremap <silent><Leader>bp :bprevious<CR>
noremap <silent><Leader>bn :bnext<CR>
noremap <silent><Leader>bc :bd<CR>

"Tabs
map <leader>tn :tabnew<cr>
map <leader>to :tabonly<cr>
map <leader>tc :tabclose<cr>
map <leader>tm :tabmove

"Changlist
noremap <silent><Leader>cp :cprev<CR>
noremap <silent><Leader>cn :cnext<CR>

"Quickfix
noremap <Leader>q :copen<CR>
noremap <Leader>Q :cclose<CR>
noremap gn :cn<CR>
noremap gp :cp<CR>

"Diff
"Diff
map <leader>gd :Gdiff<cr>
map <leader>gs :Gstatus<cr>
map <leader>gb :Gblame<cr>
map <leader>gw! :Gwrite!<cr>

"Selection
noremap gV `[v`]
map <leader>gd :Gdiff<cr>
map <leader>gs :Gstatus<cr>
map <leader>gb :Gblame<cr>
map <leader>gw! :Gwrite!<cr>

"Selection
"Select what was pasted
map <leader>gv `[v`]

"Spelling
"Pressing ,ss will toggle and untoggle spell checking
setlocal spell spelllang=en_gb
setlocal nospell
map <leader>ss :setlocal spell!<cr>
"Next, previous
map <leader>sn ]s
map <leader>sp [s
"Add word to spellfile
map <leader>sa zg
"Suggest spelling
map <leader>s? z=

"Delete surrounding function
nmap <silent> dsf ds)db

"FileTypes
"web
autocmd FileType javascript set omnifunc=javascriptcomplete#CompleteJS
autocmd FileType html set omnifunc=htmlcomplete#CompleteTags
autocmd FileType css set omnifunc=csscomplete#CompleteCSS
autocmd FileType html,htmldjango setlocal tabstop=2 softtabstop=2 shiftwidth=2 expandtab
autocmd BufEnter *html map <F11> :setfiletype htmldjango<CR>
autocmd BufEnter *html map <S-F11> :setfiletype django<CR>

"Python
let python_highlight_all = 1
"Fix double indentation
let g:pyindent_open_paren = '&sw'
autocmd FileType python set omnifunc=pythoncomplete#Complete
autocmd FileType python nnoremap <F5> :w<CR>:!python %<CR>
autocmd FileType python setlocal complete-=i
autocmd FileType python setlocal complete-=i
autocmd FileType python setlocal dictionary=~/.vim/dict/python
autocmd FileType python setlocal complete+=k
autocmd FileType python setlocal tabstop=4 softtabstop=4 shiftwidth=4 expandtab
"Remove trailing whitespace upon saving python file
autocmd BufWritePre *.py :%s/\s\+$//e
let g:neomake_python_flake8_maker = { 'args': ['--max-line-length=100', '--ignore=E302'], }

"Add Python virtualenv's site-packages to vim path
py << EOF
import os.path
import sys
if 'VIRTUAL_ENV' in os.environ:
    virtualenv_dir = os.environ['VIRTUAL_ENV']
    project_dir    = os.getcwd()
    sys.path.insert(0, project_dir)
    activate_this = os.path.join(
        virtualenv_dir,
        'bin/activate_this.py')
    execfile(activate_this, dict(__file__=activate_this))
EOF

"Make it easier to navigate windows
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l

"Vimrc stuff
nmap <silent> <Leader>ev :tabe $MYVIMRC<CR>
nmap <silent> <Leader>sv :so $MYVIMRC<CR>
nmap <silent> <Leader>bi :BundleInstall<CR>

"Newline
map <Leader>o o<Esc>
map <Leader>O O<Esc>

"Copy, paste and cut to system clipboard
map <Leader>y "+y
map <Leader>x "+d
map <Leader>p :set paste<CR>"+p:set nopaste<CR>
map <Leader>P :set paste<CR>"+P:set nopaste<CR>
"Copy to end of line
noremap Y y$
" Save cursor after yanking in visual mode
vnoremap y myy`y
vnoremap Y myY`y

"Arguments on new lines
map <silent> <leader>a :ArgWrap<CR>
"Closing bracket on last arg line
let g:argwrap_wrap_closing_brace = 0

"Tasklist
map <Leader>td <Plug>TaskList

"Run line in shell
map <Leader>r :exec '!'.getline('.')<CR>
"Run line in shell and insert output below
"TODO

"Camel case motion
"map <S-W> <Plug>CamelCaseMotion_w
"map <S-B> <Plug>CamelCaseMotion_b
"map <S-E> <Plug>CamelCaseMotion_e

"Significantly improve performance using The Silver Searcher
if executable('ag')
  " Use ag over grep
  set grepprg=ag\ --nogroup\ --nocolor

  " Use ag in CtrlP for listing files. Lightning fast and respects .gitignore
  let g:ctrlp_user_command = 'ag %s -l --nocolor -g ""'

  " ag is fast enough that CtrlP doesn't need to cache
  let g:ctrlp_use_caching = 0
endif

"Delimitmate
let delimitMate_expand_cr = 1
let delimitMate_expand_space = 1

"Diffs
"Diffs should be vertically split!
set diffopt+=vertical
set re=1

"Autocompletion
let g:deoplete#enable_at_startup = 1

"Ultisnips Trigger configuration. Do not use <tab> if you use https://github.com/Valloric/YouCompleteMe.
let g:UltiSnipsExpandTrigger="<c-k>"
let g:UltiSnipsJumpForwardTrigger="<c-l>"
let g:UltiSnipsJumpBackwardTrigger="<c-h>"
" If you want :UltiSnipsEdit to split your window.
let g:UltiSnipsEditSplit="vertical"

"Repeat motion
let repmo_key=","
let repmo_revkey="\\"

"Use local config if available
if filereadable("~/.config/nvim/init.local")
    so ~/.config/nvim/init.local
endif