My .vimrc file

.vimrc

" JK Jung's .vmirc
"
" Reference:
"
" 1. Sample .vimrc by Martin Brochhaus, presented at PyCon APAC 2012
"    https://github.com/mbrochh/vim-as-a-python-ide
" 2. https://realpython.com/vim-and-python-a-match-made-in-heaven/
" 3. https://github.com/fisadev/fisa-vim-config
" 4. https://github.com/thesheff17/youtube/blob/master/vim/vimrc
" 5. https://github.com/amix/vimrc
" 6. https://github.com/tpope/vim-sensible/blob/master/plugin/sensible.vim
"
" Installation:
"
" * https://gist.github.com/jkjung-avt/26226c7265085e51d6a14efbe8c93b10
" * Download and executre: "install.sh"
" * Download and place under ${HOME}: ".vimrc"


function! RefreshUI()
    if exists(':AirlineRefresh')
        AirlineRefresh
    else
        " Clear & redraw the screen, then redraw all statuslines.
        redraw!
        redrawstatus!
    endif
endfunction


" Automatic reloading of .vimrc
autocmd BufWritePost .vimrc source % | :call RefreshUI()


" Rebind <Leader> key
" I like to have it here becuase it is easier to reach than the default and
" it is next to ``m`` and ``n`` which I use for navigating between tabs.
"" let mapleader = ','


" Easier formatting of paragraphs
"" vmap Q gq
"" nmap Q gqap


" Generate help tags
helptags ~/.vim/doc


" Set up Pathogen to manage your plugins
" $ mkdir -p ~/.vim/autoload ~/.vim/bundle
" $ curl -so ~/.vim/autoload/pathogen.vim https://raw.githubusercontent.com/tpope/vim-pathogen/master/autoload/pathogen.vim
" Now you can install any plugin into a .vim/bundle/plugin-name/ folder
set nocompatible
call pathogen#infect()
call pathogen#helptags()


" File types
" $ mkdir -p ~/.vim/ftplugin
" $ wget -O ~/.vim/ftplugin/python_editing.vim http://www.vim.org/scripts/download_script.php?src_id=5492
"" set nofoldenable


" Settings for powerline
" $ sudo pip3 install powerline-status
" $ xset -q
" $ cd /tmp
" $ wget https://github.com/powerline/powerline/raw/develop/font/PowerlineSymbols.otf
" $ wget https://github.com/powerline/powerline/raw/develop/font/10-powerline-symbols.conf
" $ sudo cp PowerlineSymbols.otf /usr/share/fonts/X11/misc/
" $ sudo fc-cache -vf /usr/share/fonts/X11/misc/
" $ sudo cp 10-powerline-symbols.conf /etc/fonts/conf.d/
"" set rtp+=/usr/local/lib/python3.6/dist-packages/powerline/bindings/vim/
set laststatus=2


" Settings for ctrlp
" $ cd ~/.vim/bundle
" $ git clone https://github.com/kien/ctrlp.vim.git
let g:ctrlp_max_height = 20
set wildignore+=*.a,*.o,*.so,*.pyc,.git,*build/*
set wildignore+=*.jpg,*.png,*.gif,*.bmp,*.ico
set wildignore+=*.tmp,*.swp


" Settings for jedi-vim
" $ cd ~/.vim/bundle
" $ git clone https://github.com/davidhalter/jedi-vim.git
" $ cd jedi-vim
" $ git submodule update --init
" $ sudo pip3 install jedi
let g:jedi#popup_on_dot = 0
let g:jedi#popup_select_first = 0
let g:jedi#force_py_version = 3
"" let g:jedi#goto_command = '<Leader>d'              " Go to definition
"" let g:jedi#usages_command = '<Leader>n'            " Find ocurrences
"" let g:jedi#goto_assignments_command = '<Leader>a'  " Find assignments
"" nmap <Leader>D :tab split<CR>:call jedi#goto()<CR> " Go to definition in new tab


" python with virtualenv support
"" py << EOF
"" import os
"" import sys
"" if 'VIRTUAL_ENV' in os.environ:
""     project_base_dir = os.environ['VIRTUAL_ENV']
""     activate_this = os.path.join(project_base_dir, 'bin/activate_this.py')
""     execfile(activate_this, dict(__file__=activate_this))
"" EOF


" Auto completion for python
" $ cd ~/.vim/bundle
" $ git clone https://github.com/Valloric/YouCompleteMe.git
" $ cd ~/.vim/bundle/YouCompleteMe
" $ git submodule update --init --recursive
" $ python3 ./install.py --clang-completer --java-completer
"" let g:ycm_autoclose_preview_window_after_completion = 1
"" let g:ycm_collect_identifiers_from_tags_files = 1
"" let g:ycm_python_interpreter_path = '/usr/bin/python3'
"" let g:ycm_global_ycm_extra_conf = '$HOME/.ycm_extra_conf.py'
"" let g:ycm_extra_conf_globlist = ['$HOME']
"" map <leader>g  :YcmCompleter GoToDefinitionElseDeclaration<CR>


" Use vim-flake8 for PEP-8 check: invoke with <F5>
" $ cd ~/.vim/bundle
" $ https://github.com/nvie/vim-flake8.git
"" autocmd FileType python map <buffer> <F5> :call Flake8()<CR>
autocmd FileType python map <buffer> <Leader>m :call Flake8()<CR>


" Python syntax checking/highlighting
" $ cd ~/.vim/bundle
" $ git clone https://github.com/vim-syntastic/syntastic.git
nmap <leader>e :Errors<CR>
let g:syntastic_always_populate_loc_list = 0
let g:syntastic_auto_loc_list = 0
let g:syntastic_check_on_open = 0
let g:syntastic_check_on_wq = 0
let g:syntastic_python_checkers = ['python']
let g:syntastic_python_python_exec = 'python3'


" General folding
" $ cd ~/.vim/bundle
" $ git clone https://github.com/vim-scripts/indentpython.vim.git
" $ git clone https://github.com/Konfekt/FastFold.git
" $ git clone https://github.com/tmhedberg/SimpylFold.git
set foldmethod=indent
set foldlevel=99
nnoremap <space> za
"" let g:SimpylFold_docstring_preview=1


" Map %% to expand directory of current active window
cnoremap <expr> %% getcmdtype() == ':' ? expand('%:h').'/' : '%%'


" vim-easymotion: use single <Leader> key
map <Leader> <Plug>(easymotion-prefix)


" Load matchit.vim, but only if the user hasn't installed a newer version.
if !exists('g:loaded_matchit') && findfile('plugin/matchit.vim', &rtp) ==# ''
  runtime! macros/matchit.vim
endif


" Mouse and backspace
"" set mouse=a
set backspace=indent,eol,start


" Make backspaces more powerfull
set backspace=indent,eol,start


" Show partial command
set showcmd


" bind Ctrl+<movement> keys to move around the windows
map <C-j>      <C-w>j
map <C-k>      <C-w>k
map <C-l>      <C-w>l
map <C-h>      <C-w>h
map <C-Down>   <C-w>j
map <C-Up>     <C-w>k
map <C-Left>   <C-w>l
map <C-Right>  <C-w>h


" Showing line numbers and length
set rnu           " show relative line numbers
set wrap          " wrap lines visually
set textwidth=0
set wrapmargin=0


" Highlighting TABs
set list
set listchars=tab:T>


" Useful settings
set history=1000
set undolevels=1000
set tabpagemax=50


" Set spell-check language
set spelllang=en
"" set spell


" Let all numbers default to decimal (for Ctrl-a and Ctrl-x)
set nrformats-=octal


" Make search case insensitive
set hlsearch
set incsearch
set ignorecase
set smartcase


" Disable stupid backup and swap files - they trigger too many events
" for file system watchers
set nobackup
set nowritebackup
set noswapfile


" Set encoding for python
autocmd BufNewFile,BufRead *.py,*.pyw,*.pxd,*.pyx
    \ set encoding=utf-8
"" autocmd BufNewFile,BufRead *.py,*.pyw,*.pxd,*.pyx,*.c,*.cpp,*.h,*.hpp,*.java,*.js,*.json
""     \ set fileformat=unix


" Enable syntax highlighting
" You need to reload this file for the change to apply
filetype plugin indent on
syntax enable
let python_highlight_all=1
"" set cinkeys-=0# indentkeys-=0#
set autoindent
set smartindent
"" set cindent
set shiftwidth=4 tabstop=4 softtabstop=4
set expandtab
set smarttab
set shiftround


" Disable format options for text and comment
"" set formatoptions-=tc


" Better copy & paste
"" set pastetoggle=<F12>
set clipboard=unnamed
set clipboard=unnamedplus


" Extra stuffs from sensible.vim
set wildmenu
if !&scrolloff
  set scrolloff=1
endif
if !&sidescrolloff
  set sidescrolloff=5
endif
set display+=lastline


" Color scheme
" $ mkdir -p ~/.vim/colors && cd ~/.vim/colors
" $ wget -O wombat256mod.vim http://www.vim.org/scripts/download_script.php?src_id=13400
set t_Co=256
color wombat256mod
if exists('$TMUX')
    if has('nvim')
        set termguicolors
    else
        set term=screen-256color
    endif
endif

set colorcolumn=80
highlight ColorColumn ctermbg=0


" Highlight unwanted spaces
highlight ExtraWhitespace ctermbg=red guibg=red
match ExtraWhitespace /\s\+$/
autocmd BufWinEnter * match ExtraWhitespace /\s\+$/
autocmd InsertEnter * match ExtraWhitespace /\s\+\%#\@<!$/
autocmd InsertLeave * match ExtraWhitespace /\s\+$/
autocmd BufWinLeave * call clearmatches()

.ycm_extra_conf.py

def Settings(**kwargs):
    return {
        'flags': [
            '-x',
            'c++',
            '-Wall',
            '-Wextra',
            '-Werror',
            '-std=c++11',
        ],
        'interpreter_path': '/usr/bin/python3',
    }

install.sh

#!/bin/bash

set -ex

# Prerequisite
sudo apt-get install -y build-essential make cmake cmake-curses-gui git g++ pkg-config
sudo apt-get install -y vim curl exuberant-ctags git ack-grep
sudo apt-get install -y python3-pip python3-dev python3-testresources
if ! python3 -c "import pip, setuptools" > /dev/null 2>&1; then
    echo "ERROR: cannot find pip or setuptools"
    exit
fi
pip3 install -U --user pep8 flake8 pyflakes isort yapf jedi powerline-status

mkdir -p ~/.vim/plugin ~/.vim/doc
mkdir -p ~/.vim/autoload ~/.vim/bundle ~/.vim/colors

# Taglist
wget https://www.vim.org/scripts/download_script.php?src_id=19574 -O /tmp/taglist_46.zip
cd ~/.vim
unzip /tmp/taglist_46.zip
chmod a-x doc/*.txt

# Color scheme
cd ~/.vim/colors
wget -O wombat256mod.vim http://www.vim.org/scripts/download_script.php?src_id=13400

# Pathogen for managing plugins
wget -O ~/.vim/autoload/pathogen.vim https://raw.githubusercontent.com/tpope/vim-pathogen/master/autoload/pathogen.vim

# Powerline as a nicer-looking status bar
xset -q
mkdir -p ~/.local/share/fonts
wget https://github.com/powerline/powerline/raw/develop/font/PowerlineSymbols.otf -O ~/.local/share/fonts/PowerlineSymbols.otf 
fc-cache -vf ~/.local/share/fonts/
mkdir -p ~/.config/fontconfig/conf.d
wget https://github.com/powerline/powerline/raw/develop/font/10-powerline-symbols.conf -O ~/.config/fontconfig/conf.d/10-powerline-symbols.conf 
mkdir -p ~/.config/powerline
cp -r ${HOME}/.local/lib/python3.?/site-packages/powerline/config_files ~/.config/powerline/
cp -r ${HOME}/.local/lib/python3.?/site-packages/powerline/bindings/vim/autoload/* ~/.vim/autoload/
cp -r ${HOME}/.local/lib/python3.?/site-packages/powerline/bindings/vim/plugin/* ~/.vim/plugin/

# Ctrlp for finding files
cd ~/.vim/bundle
git clone https://github.com/kien/ctrlp.vim.git

# jedi-vim
cd ~/.vim/bundle
git clone --recursive https://github.com/davidhalter/jedi-vim.git

# YouCompleteMe for auto completion
## sudo apt-get install -y libclang-8-dev
## cd ~/.vim/bundle
## git clone https://github.com/Valloric/YouCompleteMe.git
## cd ~/.vim/bundle/YouCompleteMe
## git submodule update --init --recursive
## python3 ./install.py --clang-completer --java-completer --system-libclang

# Use vim-flake8 for PEP-8 check
cd ~/.vim/bundle
git clone https://github.com/nvie/vim-flake8.git

# Python syntax checking/highlighting
cd ~/.vim/bundle
git clone https://github.com/vim-syntastic/syntastic.git

# File types
## mkdir -p ~/.vim/ftplugin
## wget -O ~/.vim/ftplugin/python_editing.vim http://www.vim.org/scripts/download_script.php?src_id=5492

# General folding
## cd ~/.vim/bundle
## git clone https://github.com/vim-scripts/indentpython.vim.git
## git clone https://github.com/Konfekt/FastFold.git
## git clone https://github.com/tmhedberg/SimpylFold.git

# vim-easymotion
cd ~/.vim/bundle
git clone https://github.com/easymotion/vim-easymotion

# vim-unimpaired and repeat
cd ~/.vim/bundle
git clone https://github.com/tpope/vim-unimpaired.git
git clone https://github.com/tpope/vim-repeat.git