init.vim

let g:python_host_prog  = '/usr/bin/python2'
let g:python3_host_prog = '/usr/bin/python3'

" Specify a directory for plugins (for Neovim: ~/.local/share/nvim/plugged)
call plug#begin('~/.vim/plugged')

" Appearance
    " Vim-Airline
    Plug 'vim-airline/vim-airline'
    " Fancy Startscreen
    Plug 'mhinz/vim-startify'
    " A good dark theme
    Plug 'joshdick/onedark.vim'

" Usability
    " Automatically toggles relative line numbers
    Plug 'jeffkreeftmeijer/vim-numbertoggle'
    " reopen files at last edit position
    Plug 'dietsche/vim-lastplace'
    " Auto pair brackets
    Plug 'jiangmiao/auto-pairs'
    " Mark Trailing Whitespaces
    Plug 'ntpeters/vim-better-whitespace'
    " NERD Tree Filebrowser
    Plug 'scrooloose/nerdtree'
    " Display open buffers
    Plug 'bling/vim-bufferline'
    " Easier navigation
    Plug 'easymotion/vim-easymotion'
    " Git stuff in Vim
    Plug 'jreybert/vimagit'
    " Makes vim adhear to .editorconfig
    Plug 'editorconfig/editorconfig-vim'
    Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
    Plug 'sebastianmarkow/deoplete-rust'
    Plug 'SevereOverfl0w/deoplete-github'
    Plug 'carlitux/deoplete-ternjs'
    Plug 'ternjs/tern_for_vim', { 'do': 'npm install' }
    Plug 'slashmili/alchemist.vim'
    
" enhance built-in features
	" changes how vim stores undo files
	Plug 'pixelastic/vim-undodir-tree'
	" session backup and restore
	Plug 'tpope/vim-obsession'
	" edit gpg encrypted files
	Plug 'vim-scripts/gnupg.vim'
	" automatically toggles relative line numbers
	Plug 'jeffkreeftmeijer/vim-numbertoggle'
	" make <C-a> and <C-x> compatable with dates, times, etc
	Plug 'tpope/vim-speeddating'
	" reopen files at last edit position
	Plug 'dietsche/vim-lastplace'
	" add the ability to macro some plugins
	Plug 'tpope/vim-repeat'
	" more syntax
	Plug 'wellle/targets.vim'
	" clear search highlight upon cursor move
	" Plug 'pgdouyon/vim-evanesco'

" language-specific
	" multi-lang syntax files
	Plug 'sheerun/vim-polyglot'

	" clojure
	Plug 'guns/vim-clojure-static'
	Plug 'guns/vim-clojure-highlight'
	Plug 'guns/vim-sexp'
	Plug 'tpope/vim-sexp-mappings-for-regular-people'
	" csv
	Plug 'chrisbra/csv.vim'
	" d
	Plug 'idanarye/vim-dutyl'
	" f#
	Plug 'fsharp/vim-fsharp'
	" haskell
	Plug 'dag/vim2hs'
	Plug 'eagletmt/neco-ghc'
	Plug 'pbrisbin/vim-syntax-shakespeare'
	" html
	Plug 'rstacruz/sparkup'
	Plug 'Valloric/MatchTagAlways'
	" java
	Plug 'vim-scripts/JavaDecompiler.vim'
	Plug 'artur-shaik/vim-javacomplete2'
	Plug 'rustushki/JavaImp.vim'
	Plug 'tpope/vim-classpath'
	" latex
	Plug 'lervag/vimtex'
	" markdown
	Plug 'suan/vim-instant-markdown'
	" python
	Plug 'jmcantrell/vim-virtualenv'
	" ruby
	Plug 'tpope/vim-rails'
	" scss
	Plug 'cakebaker/scss-syntax.vim'
	" browse the current file's tags
	Plug 'majutsushi/tagbar'
    " Rust
    Plug 'rust-lang/rust.vim'
    Plug 'racer-rust/vim-racer'
    Plug 'cespare/vim-toml'
    Plug 'autozimu/LanguageClient-neovim', { 'do': ':UpdateRemotePlugins' }
    " Optional dependency for symbol selection
    Plug 'junegunn/fzf'

" linting
	" syntax checking
	Plug 'scrooloose/syntastic'

" other
	" wraps/unwraps brackets
	Plug 'vim-scripts/argwrap.vim'
	" auto-pairs brackets, quotes, etc
	Plug 'jiangmiao/auto-pairs'
	" aligns things
	Plug 'junegunn/vim-easy-align'
	" snippets
	Plug 'sirver/UltiSnips'
	Plug 'honza/vim-snippets'
	" ack
	Plug 'mileszs/ack.vim'
	" file browser
	Plug 'scrooloose/nerdtree'
	Plug 'jistr/vim-nerdtree-tabs'
	" shows git status per-line
	Plug 'airblade/vim-gitgutter'
	" visual undo tree
	Plug 'mbbill/undotree'
	" unix command emulation
	Plug 'tpope/vim-eunuch'
	" git command integration
	Plug 'tpope/vim-fugitive'
	" github addon for vim-fugitive
	Plug 'tpope/vim-rhubarb'
	" personal wiki/diary/checklist/everything
	Plug 'vimwiki/vimwiki'
	" color picker
	Plug 'KabbAmine/vCoolor.vim'
	" use vim as system manpager
	Plug 'lambdalisue/vim-manpager'
	" easily surround text
	Plug 'tpope/vim-surround'
	" useful shortcuts
	Plug 'tpope/vim-unimpaired'
	" comment/uncomment areas of text
	Plug 'tpope/vim-commentary'
	" easy search/jump within small areas
	Plug 'justinmk/vim-sneak'

" Initialize plugin system
call plug#end()
set clipboard+=unnamedplus

filetype plugin indent on
syntax enable

let mapleader=' '
set encoding=utf-8
scriptencoding utf-8

" Case-insensitive pathname tab completion
set wildignorecase

" Persistent undo
set undodir=~/.config/nvim/.undo//
set backupdir=~/.config/nvim/.backup//
set directory=~/.config/nvim/.swp//
set undofile

" Better searching
set ignorecase smartcase incsearch showmatch hlsearch
nnoremap <C-L> :noh<CR><C-L>

" show more information
set showmode showcmd ruler

" Show relative line numbers and never let cursor touch top/bottom
set relativenumber scrolloff=5

" convenience
imap <Nul> <Esc><Leader>
set noesckeys
set noshowmode
set laststatus=2

" cursor shapes
if has('nvim')
	let $NVIM_TUI_ENABLE_CURSOR_SHAPE = 1
else
	let &t_SI = "\<esc>[5 q"
	let &t_SR = "\<esc>[5 q"
	let &t_EI = "\<esc>[2 q"
end

" Buffer navigation
nnoremap <C-RIGHT> :bn<CR>
nnoremap <C-LEFT> :bp<CR>

" Save root files
cnoremap w!! w !sudo tee %

" Set colorscheme
syntax on
colorscheme onedark

" Indentation
filetype plugin indent on
set tabstop=4 shiftwidth=4 softtabstop=4 expandtab autoindent

" Don't abandon buffers
set hidden

" Language-specific
au FileType css  set ts=2 sw=2 sts=2
au FileType html set ts=2 sw=2 sts=2
au FileType rust nnoremap <C-b> :w<CR>:Neomake! cargo<CR>

" Plugin Configs
    " Vim-Airline
    "let g:airline_theme='base16'
	let g:airline#extensions#tabline#enabled = 1
	let g:airline_powerline_fonts = 1

		if !exists('g:airline_symbols')
			let g:airline_symbols = {}
		endif
    "let g:lightline = {
    "  \ 'colorscheme': 'onedark',
    "  \ }
    let g:onedark_terminal_italics=1
    let g:airline_theme='onedark'
    let g:onedark_termcolors=16

    " Airline symbols
    "if !exists('g:airline_symbols')
     "   let g:airline_symbols = {}
    "endif


    " Vim Airline theme stuff

		" airline symbols
		"let g:airline_left_sep = ''
		"let g:airline_left_alt_sep = ''
		"let g:airline_right_sep = ''
		"let g:airline_right_alt_sep = ''
		"let g:airline_symbols.linenr = '␊'
		"let g:airline_symbols.linenr = '␤'
		"let g:airline_symbols.linenr = '¶'
		"let g:airline_symbols.branch = '⎇'
		"let g:airline_symbols.paste = 'ρ'
		"let g:airline_symbols.paste = 'Þ'
		"let g:airline_symbols.paste = '∥'
		"let g:airline_symbols.whitespace = 'Ξ'
    	"let g:airline_symbols.branch = ''
		"let g:airline_symbols.readonly = ''
		"let g:airline_symbols.linenr = ''

    "Use 24-bit (true-color) mode in Vim/Neovim when outside tmux.
    "If you're using tmux version 2.2 or later, you can remove the outermost $TMUX check and use tmux's 24-bit color support
    "(see < http://sunaku.github.io/tmux-24bit-color.html#usage > for more information.)
    if (empty($TMUX))
      if (has("nvim"))
        "For Neovim 0.1.3 and 0.1.4 < https://github.com/neovim/neovim/pull/2198 >
        let $NVIM_TUI_ENABLE_TRUE_COLOR=1
      endif
      "For Neovim > 0.1.5 and Vim > patch 7.4.1799 < https://github.com/vim/vim/commit/61be73bb0f965a895bfb064ea3e55476ac175162 >
      "Based on Vim patch 7.4.1770 (`guicolors` option) < https://github.com/vim/vim/commit/8a633e3427b47286869aa4b96f2bfc1fe65b25cd >
      " < https://github.com/neovim/neovim/wiki/Following-HEAD#20160511 >
     if (has("termguicolors"))
       set termguicolors
     endif
    endif

    if !has('gui_running')
        set t_Co=256
    endif

    " Better Whitespace Plugin
    highlight ExtraWhitespace ctermbg=01

    " Rust.vim
    let g:rustfmt_autosave = 1

    " Language server for rust
    " Required for operations modifying multiple buffers like rename.
    set hidden

    let g:LanguageClient_serverCommands = {
        \ 'rust': ['cargo', 'run', '--release', '--manifest-path=/opt/rls/Cargo.toml'],
        \ }

    nnoremap <silent> K :call LanguageClient_textDocument_hover()<CR>
    nnoremap <silent> gd :call LanguageClient_textDocument_definition()<CR>
    nnoremap <silent> <F2> :call LanguageClient_textDocument_rename()<CR>

    " Vim-racer
    let g:racer_experiomental_completer = 1

    " Neosnippet
    if has('conceal')
      set conceallevel=2 concealcursor=niv
    endif

    " Bufferline
    let g:bufferline_show_bufnr = 0
    let g:bufferline_active_buffer_left = ''
    let g:bufferline_active_buffer_right = ''
    let g:bufferline_active_highlight = 'BufferLineSel'
    let g:bufferline_inactive_highlight = 'BufferLine'

    " NERDTree
    let g:NERDTreeDirArrowExpandable = ''
    let g:NERDTreeDirArrowCollapsible = ''

    " EasyMotion
    " Mapping to <Leader> might result in issues
    map <Leader> <Plug>(easymotion-prefix)

    " Editorconfig
    " Set editorconfig to not work on remote files over ssh
    let g:EditorConfig_exclude_patterns = ['scp://.*']

" Remappings
	" spellcheck
	map <silent> <F2> :setlocal spell! spelllang=en_us<CR>
	imap <silent> <F2> <C-o>:setlocal spell! spelllang=en_us<CR>
" plugin configs
	" ArgWrap
	nnoremap <silent> <leader>aw :ArgWrap<cr>

	" clang-format
	let g:clang_format#style_options = {
				\ "AccessModifierOffset" : -4,
				\ "AllowShortIfStatementsOnASingleLine" : "true",
				\ "AlwaysBreakTemplateDeclarations" : "true",
				\ "Standard" : "C++11"}
	autocmd FileType c,cpp,objc nnoremap <buffer><Leader>cf :<C-u>ClangFormat<cr>
	autocmd FileType c,cpp,objc vnoremap <buffer><Leader>cf :ClangFormat<cr>

	" Color Picker
	nnoremap <A-c> :ColorPicker<cr>
	inoremap <A-c> :ColorPicker<cr>

	" EasyAlign
	xmap ga <Plug>(EasyAlign)
	nmap ga <Plug>(EasyAlign)
	nnoremap gA ga

	" IndentLine
	let g:indentLine_concealcursor = ''
	let g:indentLine_conceallevel = 1
	let g:indentLine_char = '|'

	" JavaImp
	let g:JavaImpPaths = "/usr/lib/jvm"
	let g:JavaImpDocPaths = "/usr/share/doc/java8-openjdk"
	let g:JavaImpDataDir = $HOME . "/.vim/JavaImp"

	" Neco-ghc
	autocmd FileType haskell setlocal omnifunc=necoghc#omnifunc

	" NerdTree-tabs
	nmap <Leader>n :NERDTreeTabsToggle<cr>

	" NumberToggle
	let g:NumberToggleTrigger=''

	" Polyglot
	let g:polyglot_disabled = ['python']

	" Syntastic
	set statusline+=%#warningmsg#
	set statusline+=%{SyntasticStatuslineFlag()}
	set statusline+=%*

	let g:syntastic_always_populate_loc_list = 1
	let g:syntastic_auto_loc_list = 1
	let g:syntastic_check_on_open = 1
	let g:syntastic_check_on_wq = 0

	let g:syntastic_rust_clippy_post_args = ['--release', '--', '-Dclippy', '-Wclippy_pendantic']

	let g:syntastic_html_tidy_ignore_errors = [
		\ 'trimming empty <i>'
		\ ]
	let g:syntastic_java_javac_config_file_enabled = 1
	let g:syntastic_javascript_checkers = ['eslint']
	let g:syntastic_scss_checkers = ['scss_lint']

	" Tagbar
	nmap <F8> :TagbarToggle<cr>

	" UltiSnips
	let g:UltiSnipsExpandTrigger="<C-j>"
	let g:UltiSnipsJumpForwardTrigger="<C-j>"
	let g:UltiSnipsJumpBackwardTrigger="<C-k>"

	" Undotree
	nnoremap <F5> :UndotreeToggle<cr>

	" Vimtex
	let g:tex_flavor='latex'
	let g:Tex_DefaultTargetFormat='pdf'
	let g:Tex_ViewRule_pdf='gv 2>/dev/null'
	let g:vimtex_viewer_zathura = 1
	let g:vimtex_view_general_viewer = 'zathura'

	" VimWiki
	let g:vimwiki_list = [
	\   {
	\       'path': '~/doc/vimwiki',
	\       'auto_export': 0,
	\       'auto_toc': 1,
	\       'syntax': 'markdown', 'ext': '.md'
	\   }
	\]
	let g:vimwiki_folding='list'
	let g:vimwiki_global_ext = 0

    " Deoplete
    let g:deoplete#enable_at_startup = 1
    let g:deoplete#sources#rust#racer_binary = '/home/benjamin/.cargo/bin/racer'
    let g:deoplete#sources#rust#rust_source_path = '~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/'
    " Use deoplete.
    let g:tern_request_timeout = 1
    let g:tern_show_signature_in_pum = '0'  " This do disable full signature type on autocomplete

    "Add extra filetypes
    let g:tern#filetypes = [
                \ 'jsx',
                \ 'javascript.jsx',
                \ 'vue',
                \ '...'
                \ ]
    " deoplete tab-complete
    inoremap <expr><tab> pumvisible() ? "\<c-n>" : "\<tab>"
    if !exists('g:deoplete#omni#input_patterns')
        let g:deoplete#omni#input_patterns = {}
    endif
    " let g:deoplete#disable_auto_complete = 1
    autocmd InsertLeave,CompleteDone * if pumvisible() == 0 | pclose | endif