My vimrc file, based on the example vimrc file in Ubuntu, adding a LOT of plugins and settings

.vimrc

" An updated vimrc from the unix example.
" GistID: ef703ea372a15e36d90c
" Maintainer: Pieter Jordaan
" Last change: 13 Sept 2020

"
" To use it, copy it to
" for Unix and OS/2: ~/.vimrc
" for Amiga: s:.vimrc
" for MS-DOS and Win32: $VIM\_vimrc
" for OpenVMS: sys$login:.vimrc
 
" When started as "evim", evim.vim will already have done these settings.
if v:progname =~? "evim"
    finish
endif

let $FZF_DEFAULT_COMMAND="rg --files --follow --hidden"
set shell=/bin/bash
set encoding=utf-8
 
" Use Vim settings, rather than Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
set nocompatible
filetype off " required
 
" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')
 
" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'
" TODO watch for vim-gutentags, could be useful 
" My plugin selection
" Editorconfig support
Plugin 'editorconfig/editorconfig-vim'
" Git control in VIM
Plugin 'tpope/vim-fugitive'
" Tmux support
Plugin 'benmills/vimux'
" Easy motion plugin allows for faster search motion
Plugin 'Lokaltog/vim-easymotion'
" Auto brace insert
" Plugin 'Raimondi/delimitMate' using auto-pairs now
Plugin 'jiangmiao/auto-pairs'
" Vim indent guides
Plugin 'nathanaelkane/vim-indent-guides'
" Tree-based file browser
Plugin 'scrooloose/nerdtree'
" Smart commenting
Plugin 'scrooloose/nerdcommenter'
" Tabulate stuff
Plugin 'godlygeek/tabular'
" Surround stuff
Plugin 'tpope/vim-surround'
" Minimap for vim
Plugin 'severin-lemaignan/vim-minimap'
" CtrlP fuzzy buffer searching
"Plugin 'ctrlpvim/ctrlp.vim' REPLACED WITH FZF
" install ripgrep and fzf
Plugin 'junegunn/fzf'
Plugin 'junegunn/fzf.vim'
" Buffergator helps manage buffers
"Plugin 'jeetsukumaran/vim-buffergator' REPLACED WITH FZF
" Allow surround (and other plugins) to use the . operator for repeating
Plugin 'tpope/vim-repeat'
" Snippets with snipmate
Plugin 'SirVer/ultisnips'
Plugin 'honza/vim-snippets'
" The famous taglist plugin with JS support
Plugin 'taglist.vim'
"Plugin 'vim-scripts/taglist-plus'
"Plugin 'majutsushi/tagbar'
" The famous cscope
Plugin 'cscope.vim'
" Alternative for ack: Ag, note install sudo apt-get install silversearcher-ag 
"Plugin 'gabesoft/vim-ags' REPLACED BY fzf
" Better grepping by acking
" Plugin 'mileszs/ack.vim'
" completion Stuff https://github.com/Valloric/YouCompleteMe
" Remember to install libclang, cmake, python-dev
Plugin 'Valloric/YouCompleteMe'
"Plugin 'tenfyzhong/CompleteParameter.vim'
" YCM generator
"Plugin 'rdnetto/YCM-Generator'
" Color schemes
Plugin 'flazz/vim-colorschemes'
Plugin 'CSApprox'
Plugin 'morhetz/gruvbox'
" Visual undo tree
Plugin 'mbbill/undotree'
" Airline statusline
Plugin 'vim-airline/vim-airline'
Plugin 'vim-airline/vim-airline-themes'
Plugin 'airblade/vim-gitgutter'
" GitHub Stuff
Plugin 'mattn/webapi-vim'
Plugin 'mattn/gist-vim'
" Pastebin
Plugin 'mattn/pastebin-vim'
" Cmake stuff
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Plugin 'jalcine/cmake.vim' " gives errors
 
" Java stuff
" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Plugin 'tfnico/vim-gradle'
" C++ stuff
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
" requires pip install pyclewn
" follow instructions on http://pyclewn.sourceforge.net/install.html
Plugin 'Shougo/vimproc.vim'
Plugin 'idanarye/vim-vebugger'
Plugin 'vim-scripts/a.vim'
Plugin 'tenfyzhong/vim-gencode-cpp'
 
" HTML Stuff
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
" Emmet - HTML scaffolding stuff
Plugin 'mattn/emmet-vim'
" Node and JS specific
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Plugin 'moll/vim-node'
" Multiple syntax files
Plugin 'sheerun/vim-polyglot'
"Node Autocomplete
"Plugin 'ahayman/vim-nodejs-complete'
" Syntax checking. Check https://github.com/scrooloose/syntastic/wiki/Syntax-Checkers
"Plugin 'scrooloose/syntastic'
" Linting for js/ts
Plugin 'dense-analysis/ale'
" Angular snippets
Plugin 'matthewsimo/angular-vim-snippets'
" Node completion
" Node snippets
Plugin 'jamescarr/snipmate-nodejs'
" UUID generator
Plugin 'kburdett/vim-nuuid'
" Difftool
Plugin 'will133/vim-dirdiff'

" All of your Plugins must be added before the following line
call vundle#end() " required
filetype plugin indent on " required
" To ignore plugin indent changes, instead use: "filetype plugin on
"
" Brief help
" :PluginList - list configured plugins
" :PluginInstall(!) - install (update) plugins
" :PluginSearch(!) foo - search (or refresh cache first) for foo
" :PluginClean(!) - confirm (or auto-approve) removal of unused plugins
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line
" allow backspacing over everything in insert mode
set backspace=indent,eol,start
 
if has("vms")
    set nobackup    " do not keep a backup file, use versions instead
else
    set backup  " keep a backup file
endif
set history=50  " keep 50 lines of command line history
set ruler   " show the cursor position all the time
set showcmd " display incomplete commands
set incsearch   " do incremental searching
 
" For Win32 GUI: remove 't' flag from 'guioptions': no tearoff menu entries
" let &guioptions = substitute(&guioptions, "t", "", "g")
 
" Don't use Ex mode, use Q for formatting
map Q gq
 
" CTRL-U in insert mode deletes a lot. Use CTRL-G u to first break undo,
" so that you can undo CTRL-U after inserting a line break.
inoremap <C-U> <C-G>u<C-U>
 
" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
    set mouse=a
endif
 
" Switch syntax highlighting on, when the terminal has colors
" Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
    syntax on
    set hlsearch
	set cursorline
    if &term =~ '^\(xterm\|screen\)$' && $COLORTERM == 'gnome-terminal'
        set t_Co=256
    elseif (&term == 'xterm' || &term =~? '^screen')
        " On my machine, I use an old Konsole with 256 color support
        set t_Co=256
        let g:CSApprox_konsole = 1
    endif
endif

if exists('+termguicolors')
	let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
	let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
	set termguicolors
	let &t_Cs = "\e[4:3m"
	let &t_Ce = "\e[4:0m"
endif
 
" Only do this part when compiled with support for autocommands.
if has("autocmd")
 
    " Enable file type detection.
    " Use the default filetype settings, so that mail gets 'tw' set to 72,
    " 'cindent' is on in C files, etc.
    " Also load indent files, to automatically do language-dependent indenting.
    filetype plugin indent on
 
    " Put these in an autocmd group, so that we can delete them easily.
    augroup vimrcEx
        au!
 
        " For all text files set 'textwidth' to 78 characters.
        autocmd FileType text setlocal textwidth=78
 
        " When editing a file, always jump to the last known cursor position.
        " Don't do it when the position is invalid or when inside an event handler
        " (happens when dropping a file on gvim).
        " Also don't do it when the mark is in the first line, that is the default
        " position when opening a file.
        autocmd BufReadPost *
                    \ if line("'\"") > 1 && line("'\"") <= line("$") |
                    \ exe "normal! g`\"" |
                    \ endif
 
    augroup END
 
else
 
    set autoindent  " always set autoindenting on
 
endif " has("autocmd")
 
" Convenient command to see the difference between the current buffer and the
" file it was loaded from, thus the changes you made.
" Only define it when not defined already.
if !exists(":DiffOrig")
    command DiffOrig vert new | set bt=nofile | r ++edit # | 0d_ | diffthis
                \ | wincmd p | diffthis
endif
 
" My own additions
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
" No backups
set nobackup
" Line numbers
set number
" This will allow 5 lines for the cursor to see context
set scrolloff=5
" Don't wrap lines
"set nowrap
"get out of insert mode more quickly
"you'd have to be really unlucky to
"have to type "kj" in a real world
"use case
inoremap kj <Esc>
"add a semicolon ';' at the end of the line
nnoremap ;; A;<Esc>
" some tab defaults
set tabstop=4
set shiftwidth=4
set smarttab
set smartindent
set expandtab
" use noexpandtab for tabs rather than spaces
"set noexpandtab
set softtabstop=4

" Smart case
set ignorecase
set smartcase

" Mouse searching
set mousemodel=extend

" Spell checking
set spell spelllang=en
" Undotree
if has("persistent_undo")
    set undodir=~/.undodir/
    set undofile
endif

" Editorconfig settings
let g:EditorConfig_exclude_patterns = ['fugitive://.*', 'scp://.*']
 
" Airline settings
set laststatus=2
let g:airline_powerline_fonts = 1
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#ale#enabled = 1
"let g:airline_theme='onehalfdark'
"let g:airline_theme='sonokai'
"let g:airline_theme='gruvbox'
" Folding
set foldmethod=indent
set nofoldenable
 
" Json issues
let g:vim_json_syntax_conceal = 0
au BufRead,BufNewFile *.json set filetype=json
au BufRead,BufNewFile *.jsonp set filetype=jsonp
" NERDTree Mapping
map <C-n> :NERDTreeToggle<CR>

" ALE
let g:ale_linters_explicit = 1
let g:ale_sign_error = ''
let g:ale_sign_warning = ''
let g:ale_javascript_eslint_executable = 'eslint_d'
let g:ale_typescript_eslint_executable = 'eslint_d'
let g:ale_fixers = {
 \ 'javascript': ['eslint'],
 \ 'typescript': ['eslint']
 \ }
 map <Leader>ff :ALEFix<CR>
let g:ale_fix_on_save = 1
nmap <silent> [c <Plug>(ale_previous_wrap)
nmap <silent> ]c <Plug>(ale_next_wrap)
 
" Syntastic
"set statusline+=%#warningmsg#
"set statusline+=%{SyntasticStatuslineFlag()}
"set statusline+=%*

"let g:syntastic_always_populate_loc_list = 1
"let g:syntastic_auto_loc_list = 0
"let g:syntastic_check_on_open = 1
"let g:syntastic_check_on_wq = 0
"let g:syntastic_java_checkers = []
"let g:syntastic_javascript_checkers = ['eslint']
"let g:syntastic_javascript_eslint_exec = 'eslint_d'
"let g:syntastic_typescript_checkers = ['eslint']
"let g:syntastic_typescript_eslint_exec = 'eslint_d'

" Sonokai theme
" the configuration options should be placed before `colorscheme sonokai`
"let g:sonokai_style = 'atlantis'
"let g:sonokai_enable_italic = 1
"let g:sonokai_disable_italic_comment = 0
"let g:sonokai_transparent_background = 1

" Gruvbox theme
" the configuration options should be placed before `colorscheme gruvbox`
let g:gruvbox_italic=1
let g:gruvbox_italicize_strings=1
let g:gruvbox_bold=1
let g:gruvbox_underline=1
let g:gruvbox_undercurl=1
let g:gruvbox_contrast_dark='soft'
"let g:gruvbox_improved_strings=1
let g:gruvbox_improved_warnings=1
let g:gruvbox_guisp_fallback='fg'


" Color scheme
set background=dark
"colorscheme onehalfdark
"colorscheme sonokai
colorscheme gruvbox
"colorscheme darkspectrum
"colorscheme wombat256grf

" gitgutter
"let g:gitgutter_use_colorscheme = 1
"highlight clear SignColumn
"highlight GitGutterAdd    guifg=#009900 ctermfg=2
"highlight GitGutterChange guifg=#bbbb00 ctermfg=3
"highlight GitGutterDelete guifg=#ff2222 ctermfg=1

" Auto pairs
let g:AutoPairsMultilineClose = 0 " Don't close on next line

" youcompleteme
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_use_clangd = 1
let g:ycm_confirm_extra_conf = 0
let g:ycm_auto_trigger = 1
let g:ycm_collect_identifiers_from_tags_files = 1
"let g:ycm_register_as_syntastic_checker = 1
let g:ycm_seed_identifiers_with_syntax = 0
let g:ycm_always_populate_location_list = 1
let g:ycm_error_symbol = '' 
let g:ycm_warning_symbol = ' '
" clangd setup: sudo apt install clang-tools-8; 
" and sudo update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-8 100
" Let clangd fully control code completion
let g:ycm_clangd_uses_ycmd_caching = 0
" Use installed clangd, not YCM-bundled clangd which doesn't get updates.
let g:ycm_clangd_binary_path = exepath("clangd")

nnoremap <leader>gD :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>gd :YcmCompleter GoToDefinitionElseDeclaration<CR>

" Gvim font
if has('gui_running')
    set guifont=UbuntuMono\ Nerd\ Font\ 12
endif

if has('unix')
	let g:ycm_python_binary_path = '/usr/bin/python3'
	"let g:syntastic_python_python_exec = '/usr/bin/python3'
    "let g:syntastic_check_on_open = 0
    "let g:syntastic_check_on_open = 1
    "let g:syntastic_check_on_wq = 1
    "let g:syntastic_aggregate_errors = 1
	"let g:syntastic_python_checkers = ['pyflakes']
	"let g:syntastic_python_pyflakes_args = '--'
	"let g:syntastic_javascript_checkers = ['ycm','eslint']
	"let g:syntastic_typescript_checkers = ['ycm','eslint']
endif
 
" UltiSnips
let g:UltiSnipsExpandTrigger="<c-j>"
let g:UltiSnipsJumpForwardTrigger="<c-b>"
let g:UltiSnipsJumpBackwardTrigger="<c-z>"

" Pyclewn
let g:pyclewn_python = 'python3'


" Indent guides
let g:indent_guides_enable_on_vim_startup = 1
 
" Markdown syntax for other markdown files
autocmd BufNewFile,BufReadPost *.md set filetype=markdown
 
" Conque shell get it here: https://code.google.com/p/conque/downloads/detail?name=conque_2.3.vmb open with vim and :so %
let g:ConqueTerm_StartMessages = 0

" fzf setup
nnoremap <C-p> :Files<CR>
nnoremap <Leader>b :Buffers<CR>
nnoremap <Leader>h :History<CR>
nnoremap <Leader>t :BTags<CR>
nnoremap <Leader>T :Tags<CR>

" cscope setup
if has("cscope")
	set csprg=/usr/bin/cscope
	set csto=0
	set cst
	set nocsverb
	" add any database in current directory
	if filereadable("cscope.out")
		cs add cscope.out
		" else add database pointed to by environment
	elseif $CSCOPE_DB != ""
		cs add $CSCOPE_DB
	endif
	set csverb
	set cscopequickfix=s-,c-,d-,i-,t-,e-,a-

	nmap <C-_>s :cs find s <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>g :cs find g <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>c :cs find c <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>t :cs find t <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>e :cs find e <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>f :cs find f <C-R>=expand("<cfile>")<CR><CR>
	nmap <C-_>i :cs find i ^<C-R>=expand("<cfile>")<CR>$<CR>
	nmap <C-_>d :cs find d <C-R>=expand("<cword>")<CR><CR>
	nmap <C-_>a :cs find a <C-R>=expand("<cword>")<CR><CR>
endif

" vebugger setup
let g:vebugger_leader='<Leader>d'

" vimux setup
" " Run the current file with rspec
 " TODO map <Leader>rb :call VimuxRunCommand("clear; rspec " . bufname("%"))<CR>

 " Prompt for a command to run
 map <Leader>vp :VimuxPromptCommand<CR>

 " Run last command executed by VimuxRunCommand
 map <Leader>vl :VimuxRunLastCommand<CR>

 " Inspect runner pane
 map <Leader>vi :VimuxInspectRunner<CR>

 " Close vim tmux runner opened by VimuxRunCommand
 map <Leader>vq :VimuxCloseRunner<CR>

 " Interrupt any command running in the runner pane
 map <Leader>vx :VimuxInterruptRunner<CR>

 " Zoom the runner pane (use <bind-key> z to restore runner pane)
 map <Leader>vz :call VimuxZoomRunner()<CR>