init.vim(linux)

let mapleader = "\<Space>"
set nocompatible
filetype off

"let g:python_host_prog='C:\Python38'

" ============= Plugins ==================== }}}

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

Plug 'scrooloose/nerdtree'
Plug 'joshdick/onedark.vim'
Plug 'Raimondi/delimitMate'
Plug 'Shougo/deoplete.nvim'
Plug 'dyng/ctrlsf.vim'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'sheerun/vim-polyglot'
Plug 'nfvs/vim-perforce'
Plug 'mhinz/vim-startify'
Plug 'terryma/vim-multiple-cursors'
Plug 'vim-airline/vim-airline'
Plug 'yuttie/comfortable-motion.vim'
Plug 'w0rp/ale'  "linting
Plug 'kien/rainbow_parentheses.vim'
Plug 'haya14busa/vim-keeppad'
Plug 'racer-rust/vim-racer'
Plug 'rust-lang/rust.vim'
Plug 'prabirshrestha/async.vim'
Plug 'prabirshrestha/vim-lsp'
Plug 'prabirshrestha/asyncomplete.vim'
Plug 'prabirshrestha/asyncomplete-lsp.vim'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'airblade/vim-gitgutter'
Plug 'tpope/vim-fugitive'


call plug#end()
"}}}

" ============= Terminal Config ================ {{{

" Window split settings
highlight TermCursor ctermfg=red guifg=red
set splitbelow
set splitright



" Terminal settings
tnoremap <Leader><ESC> <C-\><C-n>

" Window navigation function
" Make ctrl-h/j/k/l move between windows and auto-insert in terminals
func! s:mapMoveToWindowInDirection(direction)
    func! s:maybeInsertMode(direction)
        stopinsert
        execute "wincmd" a:direction

        if &buftype == 'terminal'
            startinsert!
        endif
    endfunc

    execute "tnoremap" "<silent>" "<C-" . a:direction . ">"
                \ "<C-\\><C-n>"
                \ ":call <SID>maybeInsertMode(\"" . a:direction . "\")<CR>"
    execute "nnoremap" "<silent>" "<C-" . a:direction . ">"
                \ ":call <SID>maybeInsertMode(\"" . a:direction . "\")<CR>"
endfunc
for dir in ["h", "j", "l", "k"]
    call s:mapMoveToWindowInDirection(dir)
endfor


" ============= General Config ================ {{{
:au BufEnter * if &buftype == 'terminal' | :startinsert | endif

:cd ~

set relativenumber                                                              "Show numbers relative to current line
set history=500                                                                 "Store lots of :cmdline history
set showcmd                                                                     "Show incomplete cmds down the bottom
set noshowmode                                                                  "Hide showmode because of the powerline plugin
set gdefault                                                                    "Set global flag for search and replace
set gcr=a:blinkon500-blinkwait500-blinkoff500                                   "Set cursor blinking rate
set cursorline                                                                  "Highlight current line
set smartcase                                                                   "Smart case search if there is uppercase
set ignorecase                                                                  "case insensitive search
set mouse=a                                                                     "Enable mouse usage
set showmatch                                                                   "Highlight matching bracket
set nostartofline                                                               "Jump to first non-blank character
set timeoutlen=1000 ttimeoutlen=0                                               "Reduce Command timeout for faster escape and O
set fileencoding=utf-8                                                          "Set utf-8 encoding on write
set wrap                                                                        "Enable word wrap
set linebreak                                                                   "Wrap lines at convenient points
set listchars=tab:\ \ ,trail:·                                                  "Set trails for tabs and spaces
set list                                                                        "Enable listchars
set lazyredraw                                                                  "Do not redraw on registers and macros
set background=dark                                                             "Set background to dark
set hidden                                                                      "Hide buffers in background
set conceallevel=2 concealcursor=i                                              "neosnippets conceal marker
set splitright                                                                  "Set up new vertical splits positions
set splitbelow                                                                  "Set up new horizontal splits positions
set path+=**                                                                    "Allow recursive search
set inccommand=split                                                            "Show substitute changes immidiately in separate split
set fillchars+=vert:\│                                                          "Make vertical split separator full line
set pumheight=30                                                                "Maximum number of entries in autocomplete popup
set mouse=a 




"" Disable the blinking cursor.
set gcr=a:blinkon0




"" Status bar
set laststatus=2

"" Use modeline overrides
set modeline
set modelines=10

set title
set titleold="Terminal"
set titlestring=%F

set statusline=%F%m%r%h%w%=(%{&ff}/%Y)\ (line\ %l\/%L,\ col\ %c)\

" Search mappings: These will make it so that going to the next one in a
" search will center on the line it's found in.
nnoremap n nzzzv
nnoremap N Nzzzv

if exists("*fugitive#statusline")
  set statusline+=%{fugitive#statusline()}
endif

" vim-airline
let g:airline_theme = 'powerlineish'
let g:airline#extensions#branch#enabled = 1
let g:airline#extensions#ale#enabled = 1
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tagbar#enabled = 1
let g:airline_skip_empty_sections = 1


augroup VCenterCursor
  au!
  au BufEnter,WinEnter,WinNew,VimResized *,*.*
        \ let &scrolloff=winheight(win_getid())/2
augroup END

" map reload of VIMRC
nmap    <F5> :so $MYVIMRC<CR>

" map save
nmap    <leader>s :w!<CR>

" map system clipboard to leader yank and paste
nmap     <leader>y "+y
vmap     <leader>y "+y
nmap     <leader>p "+p
vmap     <leader>p "+p

" leader shortcuts for NERDTree
map <leader>t :NERDTree<CR>

" leader shortcut for opening explorer
map <F3> :!start explorer /select,%:p<CR>

nnoremap j gj
nnoremap k gk

syntax on                                                                       "turn on syntax highlighting
silent! colorscheme onedark

" rust
" Vim racer
au FileType rust nmap gd <Plug>(rust-def)
au FileType rust nmap gs <Plug>(rust-def-split)
au FileType rust nmap gx <Plug>(rust-def-vertical)
au FileType rust nmap <leader>gD <Plug>(rust-doc)

"" Git
noremap <Leader>ga :Gwrite<CR>
noremap <Leader>gc :Gcommit<CR>
noremap <Leader>gsh :Gpush<CR>
noremap <Leader>gll :Gpull<CR>
noremap <Leader>gs :Gstatus<CR>
noremap <Leader>gb :Gblame<CR>
noremap <Leader>gd :Gvdiff<CR>
noremap <Leader>gr :Gremove<CR>



" }}}
" ================ Indentation ====================== {{{

set shiftwidth=4
set softtabstop=4
set tabstop=4
set expandtab
set smartindent
set nofoldenable


" }}}
" ================ Rainbow_parentheses ====================== {{{
let g:rbpt_colorpairs = [
    \ ['brown',       'RoyalBlue3'],
    \ ['Darkblue',    'SeaGreen3'],
    \ ['darkgray',    'DarkOrchid3'],
    \ ['darkgreen',   'firebrick3'],
    \ ['darkcyan',    'RoyalBlue3'],
    \ ['darkred',     'SeaGreen3'],
    \ ['darkmagenta', 'DarkOrchid3'],
    \ ['brown',       'firebrick3'],
    \ ['gray',        'RoyalBlue3'],
    \ ['black',       'SeaGreen3'],
    \ ['darkmagenta', 'DarkOrchid3'],
    \ ['Darkblue',    'firebrick3'],
    \ ['darkgreen',   'RoyalBlue3'],
    \ ['darkcyan',    'SeaGreen3'],
    \ ['darkred',     'DarkOrchid3'],
    \ ['red',         'firebrick3'],
    \ ]
let g:rbpt_max = 16
let g:rbpt_loadcmd_toggle = 0

au VimEnter * RainbowParenthesesToggle
au Syntax * RainbowParenthesesLoadRound
au Syntax * RainbowParenthesesLoadSquare
au Syntax * RainbowParenthesesLoadBraces



" }}}
" ================ Turn Off Swap Files ============== {{{

set noswapfile
set nobackup
set nowb
"}}}

" ================ Powerline ============== {{{
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#ale#enabled = 1
"}}}
" ================ Persistent Undo ================== {{{

" Keep undo history across sessions, by storing in file.
silent !mkdir ~/.local/share/nvim/backups > /dev/null 2>&1
set undodir=~/.local/share/nvim/backups
set undofile
"}}}

" ================ Auto commands ====================== {{{

augroup vimrc
    autocmd!
augroup END

autocmd vimrc InsertEnter * :set nocul                                          "Remove cursorline highlight
autocmd vimrc FocusGained,BufEnter * checktime                                  "Refresh file when vim gets focus

"}}}

" ================ Search setup ================ {{{
nmap     <leader>ff <Plug>CtrlSFPrompt
vmap     <leader>ff <Plug>CtrlSFVwordPath
vmap     <leader>fF <Plug>CtrlSFVwordExec
nmap     <leader>fn <Plug>CtrlSFCwordPath
nmap     <leader>fp <Plug>CtrlSFPwordPath
nnoremap <leader>fo :CtrlSFOpen<CR>
nnoremap <leader>ft :CtrlSFToggle<CR>
inoremap <leader>ft <Esc>:CtrlSFToggle<CR>

let g:ctrlsf_ackprg = "/usr/bin/ack"

"}}}

" ================ windows controls ================ {{{

"" Split
noremap <Leader>h :<C-u>split<CR>
noremap <Leader>v :<C-u>vsplit<CR>

nmap <leader>k <C-w>k
nmap <leader>j <C-w>j
nmap <leader>h <C-w>h
nmap <leader>l <C-w>l
"}}}

let g:multi_cursor_start_key='<leader>d' 
let g:multi_cursor_next_key='<C-n>' 
let g:multi_cursor_prev_key='<C-p>' 
let g:multi_cursor_skip_key='<C-x>' 
let g:multi_cursor_quit_key='<Esc>' 




" ================ ctrl P ================ {{{
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 ""'
endif

"}}}

" ================ Colorscheme setup ================ {{{
autocmd vimrc FileType php setlocal sw=4 sts=4 ts=4                             "Set indentation to 4 for php

let g:bold_highlight_groups = ['Function', 'Statement', 'Todo', 'CursorLineNr', 'MatchParen', 'StatusLine']

for group in g:bold_highlight_groups
  call onedark#extend_highlight(group, { 'gui': 'bold' })
endfor

"}}}


"*****************************************************************************
"" Convenience variables
"*****************************************************************************

" vim-airline
if !exists('g:airline_symbols')
  let g:airline_symbols = {}
endif

if !exists('g:airline_powerline_fonts')
  let g:airline#extensions#tabline#left_sep = ' '
  let g:airline#extensions#tabline#left_alt_sep = '|'
  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#extensions#branch#prefix     = '⤴' "➔, ➥, ⎇
  let g:airline#extensions#readonly#symbol   = '⊘'
  let g:airline#extensions#linecolumn#prefix = '¶'
  let g:airline#extensions#paste#symbol      = 'ρ'
  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'
else
  let g:airline#extensions#tabline#left_sep = ''
  let g:airline#extensions#tabline#left_alt_sep = ''

  " powerline 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.branch = ''
  let g:airline_symbols.readonly = ''
  let g:airline_symbols.linenr = ''
endif