init.vim

" Plug (vim-plug) - plugin manager
" https://github.com/junegunn/vim-plug
" Basically: after adding a plug, just remember to run 'PlugInstall'
" This is best with neovim!
" https://neovim.io/
" http://nerditya.com/code/guide-to-neovim/
" Other helpful links:
" http://learnvimscriptthehardway.stevelosh.com/
" http://andrewradev.com/2011/08/06/making-vim-pretty-with-custom-colors/
" =====================================
call plug#begin('~/.vim/plugged')
" -------------------------------------

" various color schemes (neovim default is 'dark'; I like 'slate' with dark background)
" http://vimcolors.com/
Plug 'freeo/vim-kalisi'
Plug 'w0ng/vim-hybrid'
Plug 'bitterjug/vim-colors-bitterjug'
Plug 'jonathanfilip/vim-lucius'
Plug 'crusoexia/vim-monokai'
Plug 'jacoborus/tender.vim'
Plug 'pbrisbin/vim-colors-off'
Plug 'muellan/am-colors'
Plug 'blueshirts/darcula'

" Other Plugins
Plug 'airblade/vim-gitgutter'
Plug 'ervandew/supertab'
Plug 'pangloss/vim-javascript'
Plug 'leafgarland/typescript-vim'
Plug 'Quramy/tsuquyomi'

" NERD Tree - tree explorer
" https://github.com/scrooloose/nerdtree
" http://usevim.com/2012/07/18/nerdtree/
" (loaded on first invocation of the command)
Plug 'scrooloose/nerdtree', { 'on': 'NERDTreeToggle' }

" nerdtree-git-plugin - show git status in NERD Tree
" https://github.com/Xuyuanp/nerdtree-git-plugin
Plug 'Xuyuanp/nerdtree-git-plugin'

" grubbox color scheme
Plug 'morhetz/gruvbox'

" solarized theme
Plug 'altercation/vim-colors-solarized'

" vim-airline
" Enhanced statusline
" https://github.com/vim-airline/vim-airline
Plug 'vim-airline/vim-airline'
" https://github.com/vim-airline/vim-airline-themes
Plug 'vim-airline/vim-airline-themes'

" Excellent git wrapper
" https://github.com/tpope/vim-fugitive
Plug 'tpope/vim-fugitive'

" Tagbar
" https://github.com/majutsushi/tagbar
Plug 'majutsushi/tagbar'

" Markdown support
" https://github.com/plasticboy/vim-markdown
Plug 'godlygeek/tabular'
Plug 'plasticboy/vim-markdown'

" Fuzzy file, buffer, mru, tag, etc finder
" ctrlp.vim
" https://github.com/ctrlpvim/ctrlp.vim
Plug 'ctrlpvim/ctrlp.vim'

" A better grep (source code aware)
" You must install ack on your machine for the plugin to work
Plug 'mileszs/ack.vim'

" OMG - insanely awesome fuzzy search and blazing fast grep
" https://github.com/junegunn/fzf (parent project)
" https://github.com/junegunn/fzf.vim (more extensive wrapper)
" https://medium.com/@crashybang/supercharge-vim-with-fzf-and-ripgrep-d4661fc853d2#.rkhrm332m
" To update: :PlugUpdate fzf
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'

" indentline
" https://github.com/Yggdroot/indentLine
Plug 'Yggdroot/indentLine'

" deoplete configurations
if has('nvim')
  Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
else
  Plug 'Shougo/deoplete.nvim'
  Plug 'roxma/nvim-yarp'
  Plug 'roxma/vim-hug-neovim-rpc'
endif
let g:deoplete#enable_at_startup = 1

" -------------------------------------
" Add plugins to &runtimepath
call plug#end()
" =====================================

" Auto start NERD tree when opening a directory
autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | wincmd p | endif

" Auto start NERD tree if no files are specified
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | exe 'NERDTree' | endif

" Let quit work as expected if after entering :q the only window left open is NERD Tree itself
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

" Use Ag (the silver searcher) instack of Ack
let g:ackprg = 'ag --nogroup --nocolor --column'

function! Dark()
    echom "set bg=dark"
    set bg=dark
    colorscheme gruvbox
    "darcula fix to hide the indents:
    set nolist
endfunction

" file type recognition
filetype on
filetype plugin on
filetype indent on

" syntax highlighting
syntax on
set nocompatible                " Disable compatibility to old-time vi
set termguicolors               " Color support for terminal
set showmatch                   " Show matching brackets.
set ignorecase                  " Do case insensitive matching
set mouse=v                     " middle-click paste with mouse
set mouse=n                     " mouse drag support in terminal
set hlsearch                    " highlight search results
set tabstop=4                   " number of columns occupied by a tab character
set softtabstop=4               " see multiple spaces as tabstops so <BS> does the right thing
set expandtab                   " converts tabs to white space
set shiftwidth=4                " width for autoindents
set autoindent                  " indent a new line the same amount as the line just typed
set number relativenumber       " add line relative line numbers
set wildmode=longest,list       " get bash-like tab completions

" toggle spelling
nnoremap <leader>s :set invspell<CR>

" change the leader key from "\" to ";" ("," is also popular)
let mapleader=";"

" use ;; for escape
" http://vim.wikia.com/wiki/Avoid_the_escape_key
inoremap ;; <Esc>

" improved keyboard navigation
nnoremap <leader>h <C-w>h
nnoremap <leader>j <C-w>j
nnoremap <leader>k <C-w>k
nnoremap <leader>l <C-w>l

" scroll a bit horizontally when at the end of the line
set sidescroll=6

" Make it easier to work with buffers
" http://vim.wikia.com/wiki/Easier_buffer_switching
set hidden
set confirm
set autowriteall
set wildmenu wildmode=full

" markdown
" https://github.com/plasticboy/vim-markdown
let g:vim_markdown_folding_disabled = 1

" open new split panes to right and below (as you probably expect)
set splitright
set splitbelow

" Toggle NERDTree
" Can't get <C-Space> by itself to work, so this works as Ctrl - space - space
" https://github.com/neovim/neovim/issues/3101
" http://stackoverflow.com/questions/7722177/how-do-i-map-ctrl-x-ctrl-o-to-ctrl-space-in-terminal-vim#answer-24550772
"nnoremap <C-Space> :NERDTreeToggle<CR>
"nmap <C-@> <C-Space>
nnoremap <silent> <Space> :NERDTreeToggle<CR>

" toggle tagbar
nnoremap <silent> <leader>tb :TagbarToggle<CR>

" toggle line numbers
nnoremap <silent> <leader>n :set number! number?<CR>

" toggle line wrap
nnoremap <silent> <leader>w :set wrap! wrap?<CR>

" toggle buffer (switch between current and last buffer)
nnoremap <silent> <leader>bb <C-^>

" go to next buffer
nnoremap <silent> <leader>bn :bn<CR>
nnoremap <C-l> :bn<CR>

" go to previous buffer
nnoremap <silent> <leader>bp :bp<CR>
" https://github.com/neovim/neovim/issues/2048
nnoremap <C-h> :bp<CR>

" close buffer
nnoremap <silent> <leader>bd :bd<CR>

" kill buffer
nnoremap <silent> <leader>bk :bd!<CR>

" list buffers
nnoremap <silent> <leader>bl :ls<CR>
" list and select buffer
nnoremap <silent> <leader>bg :ls<CR>:buffer<Space>

" horizontal split with new buffer
nnoremap <silent> <leader>bh :new<CR>

" vertical split with new buffer
nnoremap <silent> <leader>bv :vnew<CR>

" redraw screan and clear search highlighted items
"http://stackoverflow.com/questions/657447/vim-clear-last-search-highlighting#answer-25569434
nnoremap <silent> <C-L> :nohlsearch<CR><C-L>

" ctrlp.vim
let g:ctrlp_map = '<c-p>'
let g:ctrlp_cmd = 'CtrlP'
let g:ctrlp_working_path_mode = ''

" ==============================
" INIT
" ==============================
silent call Dark()