nvim/init.vim

" set ruby program to global one. Need to investigate if this will cause
" problems if I ever use ruby virtual environments or RVM or similar.
let g:ruby_host_prog = '~/.gem/ruby/2.7.0/bin/neovim-ruby-host'

source ~/.config/nvim/init.plugins.vim
source ~/.config/nvim/init.tabline.vim
source ~/.config/nvim/init.auto-window.vim
source ~/.config/nvim/init.fold-text.vim

" TODO - maybe separate some of these into own files too
" #functions {{{
function! <SID>SynStack()"{{{
  if !exists('*synstack')
    return
  endif
  echo map(synstack(line('.'), col('.')), 'synIDattr(v:val,"name")') '-> ' . synIDattr(synIDtrans(synID(line('.'),col('.'),1)), 'name' )
endfunc
nmap <space>pp :call <SID>SynStack()<CR>
"}}}

function! s:RunShellCommand(cmdline) abort"{{{
" Shell command
" http://vim.wikia.com/wiki/VimTip1599

  let l:expanded_cmdline = a:cmdline
  for l:part in split(a:cmdline, ' ')
     if l:part[0] =~ '\v[%#<]'
        let l:expanded_part = fnameescape(expand(l:part))
        let l:expanded_cmdline = substitute(l:expanded_cmdline, l:part, l:expanded_part, '')
     endif
  endfor

  if g:shell_scratch_buffer_nr > -1
    let l:win_nr = bufwinnr(g:shell_scratch_buffer_nr)
    if l:win_nr < 0
      execute 'bdelete' g:shell_scratch_buffer_nr
      top new
      let g:shell_scratch_buffer_nr = bufnr('%')
    else
      execute l:win_nr. ' wincmd w'
      setlocal modifiable
      %delete _
    endif
  else
    top new
    let g:shell_scratch_buffer_nr = bufnr('%')
  endif

  setlocal buftype=nofile bufhidden=wipe nobuflisted noswapfile nowrap
  nnoremap <buffer> q :bdelete<CR>
  augroup ResetShellBufferNr
    autocmd! * <buffer>
    autocmd BufUnload <buffer> let g:shell_scratch_buffer_nr = -1
  augroup END

  " call setline(1, 'You entered:    ' . a:cmdline)
  " call setline(2, 'Expanded Form:  ' .l:expanded_cmdline)
  " call setline(3,substitute(getline(2),'.','=','g'))
  execute '$read !'. l:expanded_cmdline
  1

  setlocal nomodifiable
  if !exists('b:shell_line_count')
    let b:shell_line_count = line('$')
    if b:shell_line_count > 25
      let b:shell_line_count = 20
    endif
    execute 'resize' b:shell_line_count + 1
  endif

  wincmd p
endfunction

command! -complete=shellcmd -nargs=+ Shell call s:RunShellCommand(<q-args>)
let g:shell_scratch_buffer_nr = -1

"}}}
function! SaveAndExecute(ex_command) abort "{{{
" https://stackoverflow.com/a/40195855
" ex_command: command to run to execute file
    " SOURCE [reusable window]: https://github.com/fatih/vim-go/blob/master/autoload/go/ui.vim

    " save and reload current file
    silent execute 'update | edit'

    " get file path of current file
    let s:current_buffer_file_path = expand('%')

    let s:output_buffer_name = 'Output'
    let s:output_buffer_filetype = 'output'

    " reuse existing buffer window if it exists otherwise create a new one
    if !exists('c:buf_nr') || !bufexists(s:buf_nr) || bufwinnr(s:buf_nr) == -1
        silent execute 'top new ' . s:output_buffer_name
        let s:buf_nr = bufnr('%')
    elseif bufwinnr(s:buf_nr) != bufwinnr('%')
        silent execute bufwinnr(s:buf_nr) . 'wincmd w'
    endif

    silent execute 'setlocal filetype=' . s:output_buffer_filetype
    setlocal bufhidden=delete
    setlocal buftype=nofile
    setlocal noswapfile
    setlocal nobuflisted
    setlocal winfixheight
    setlocal cursorline " make it easy to distinguish
    " setlocal nonumber
    " setlocal norelativenumber
    setlocal showbreak=""

    nnoremap <silent> <buffer> q :bdelete!<CR>'.zz

    " clear the buffer
    setlocal noreadonly
    " setlocal modifiable
    %delete _

    " add the console output
    silent execute '.!'. a:ex_command . ' ' . shellescape(s:current_buffer_file_path, 1)

    " resize window to content length
    " Note: This is annoying because if you print a lot of lines then your code buffer is forced to a height of one line every time you run this function.
    "       However without this line the buffer starts off as a default size and if you resize the buffer then it keeps that custom size after repeated runs of this function.
    "       But if you close the output buffer then it returns to using the default size when its recreated
    "execute 'resize' . line('$')

    " make the buffer non modifiable
    setlocal readonly
    " setlocal nomodifiable
endfunction

"}}}
function! JsIncludeExpr(file)"{{{
  " substitute(substitute(v:fname,'^[\\~@]\/','./',''),'^[\\~@]','./node_modules/','')
  return substitute(substitute(a:file,'^[\\~@]\/','./',''),'^[\\~@]','./node_modules/','')

endfunction

"}}}
function! Redir(cmd) "{{{
  for win in range(1, winnr('$'))
    if getwinvar(win, 'scratch')
      execute win . 'windo close'
    endif
  endfor
  if a:cmd =~ '^!'
    let output = system(matchstr(a:cmd, '^!\zs.*'))
  else
    redir => output
    execute a:cmd
    redir END
  endif
  vnew
  let w:scratch = 1
  setlocal buftype=nofile bufhidden=wipe nobuflisted noswapfile
  call setline(1, split(output, "\n"))
endfunction

command! -nargs=1 -complete=command Redir silent call Redir(<q-args>)
" Usage:
" 	:Redir hi ............. show the full output of command ':hi' in a scratch window
" 	:Redir !ls -al ........ show the full output of command ':!ls -al' in a scratch window
"}}}
"----------------------------------------------------------------------------}}}
"#commands{{{
"   TrimWhitespace{{{
command! -range=% TrimWhitespace let b:wv = winsaveview() |
  \ keeppattern <line1>,<line2>s/\s\+$// |
  \ call winrestview(b:wv)
"}}}
"   Scratch, ScratchVertical{{{
command! Scratch new | setlocal buftype=nofile | setlocal bufhidden=hide | setlocal noswapfile
command! ScratchVertical vnew | setlocal buftype=nofile | setlocal bufhidden=hide | setlocal noswapfile
"}}}
"}}}
" #settings {{{

scriptencoding utf-8
set ttyfast

set dictionary+=/usr/share/dict/brit-a-z.txt,/usr/share/dict/britcaps.txt
set thesaurus+=/usr/share/dict/mthesaur.txt

" disable background color erase
" https://sunaku.github.io/vim-256color-bce.html
set t_ut=

syntax on
set fillchars=stl:\ ,stlnc:\ ,vert:\|,fold:\ 

set guioptions-=mTrLb
set guioptions+=c

if exists('+termguicolors')
  let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
  let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
  set termguicolors
endif

colorscheme monotonous-light

set updatetime=100
set timeoutlen=500
set lazyredraw

" the ;/home/ray tells vim to stop searching at /home/ray
set tags+=./.tags,.tags,./tags-py,.tags-py;/home/ray/

" persisitent undo file
set undofile
set undodir=~/.vim/.vimtmp
set backupdir=~/.vim/.vimtmp
set directory=~/.vim/.vimtmp

set viewoptions-=options

set ignorecase
set smartcase

set wildmenu
set wildmode=longest:full,full
set wildignore+=/node_modules/,dist/

" Use ag over grep
if executable('ag')
  set grepprg=ag\ --nogroup\ --nocolor\ --ignore\ node_modules
endif

set hidden

set hlsearch

set completeopt=menuone

set nospell
set spelllang=en_gb

set diffopt+=vertical

set rnu nu

set tabstop=8
set softtabstop=2
set shiftwidth=2
set shiftround
set expandtab
set autoindent

set textwidth=120
set formatoptions=cq
set wrapmargin=0

set cursorline

set foldcolumn=2
if has('patch-7-4-2201')
  set signcolumn=yes
endif
set colorcolumn=80,120

set iskeyword+=-
set scrolloff=10
set showcmd
set incsearch

set laststatus=2
set shortmess=aoOT
set cmdheight=3

set foldmethod=indent
set foldnestmax=3
set foldlevelstart=2

set showmode

set autoindent
set breakindent
set showbreak=\ \ ↳\

set mouse=a

set listchars=eol:¬,tab:>-,trail:~,extends:>,precedes:<,space:·
set fillchars=stl:\ ,stlnc:\ ,vert:┃,fold:\ 

set statusline=\ 
set statusline+=[%n]\ \ 
set statusline+=%l\ of\ %L\ 
set statusline+=(%p%%)
set statusline+=%=
set statusline+=%y\ 
set statusline+=%r\ %m\ %F
set statusline+=\ 

set conceallevel=0
"----------------------------------------------------------------------------}}}
" #mappings {{{
let g:mapleader = ' '
"   search and replace {{{
nnoremap <space>rr :%s/\<<C-r>=expand('<cword>')<CR>\>//g<left><left>
"}}}
" #syntax
nnoremap <silent> <cr>s :syntax on<cr>
nnoremap <silent> <cr>S :syntax off<cr>
"   miscallaneous {{{
nnoremap <cr>l :colorscheme monotonous-light<cr>
nnoremap <cr>d :colorscheme monotonous-dark<cr>
nnoremap 0 ^
nnoremap <silent><space>cs :let @/=""<cr>
nnoremap  <space>: :setlocal number<CR>:
nnoremap <silent> <space>rc :so $MYVIMRC<CR>
nnoremap <silent><expr> <space>nh (&hls && v:hlsearch ? ':nohls' : ':set hls')."\n"
nnoremap <silent> <space>sl :set invlist<CR>
nnoremap <space>aa A<left>
nnoremap <space>a2 A<left><left>
nnoremap <space>ab A<C-o>B
nnoremap <space>co :!clear;
nnoremap <space>;; A;<esc>
nnoremap <space>;j jA;<esc>
nnoremap <space>,, A,<esc>
nnoremap <space>,j jA,<esc>
" Focus on current fold, close the rest
nnoremap <silent> <space>zz zMzvzt
" replace current word with last yanked/deleted text
nnoremap <silent> <space>rw "_diwP
" replace current word with last yanked text
nnoremap <silent> <space>ry diw"0P
" quick grep of visual selection
vnoremap <space>gr y:grep! -R <C-r>" .
" open quickfix window of TODOs
" FIXME i want fixme!!!
nnoremap <space>td :grep -RE '(TODO\\|FIXME)' .<CR>:botright cwindow<CR>:echo len(getqflist()) 'TODOs'<CR>
" devdocs mapping
nnoremap <space>dd :DD<CR>
" write and delete current buffer
nnoremap <space>bx :w\|bd<cr>
" sync highlighting from start
nnoremap <silent><space>ss :syntax sync fromstart<CR>

"}}}
"   terminal{{{
if has('terminal')
  tnoremap <Esc> <C-\><C-n>
endif
"}}}
"   windows{{{
    nnoremap <space>ww :resize<CR>:vertical resize<CR>

"   }}}
"   git mappings {{{
" also see vim-fugitive plugin section
nnoremap <space>gD :!clear; echo 'git diff'; git diff<CR>
nnoremap <space>ga :!clear; git add %; git status<CR>
nnoremap <space>gA :!clear; git add .; git status<CR>
nnoremap <space>gg :!clear; git add %; git commit -m ''<Left>
nnoremap <space>gP :!clear; echo 'git push'; git push<CR>

"}}}
"   movement/navigation{{{
nnoremap <Esc>j :resize -5<CR>
nnoremap <Esc>k :resize +5<CR>
nnoremap <Esc>l :vertical resize +5<CR>
nnoremap <Esc>h :vertical resize -5<CR>
" alias for :tjump <cword>
nnoremap <space>tj g<C-]>
" alias for :ptjump <cword>
nnoremap <space>tp <C-w>g}

"}}}
"   location list and quickfix mappings {{{
nnoremap <space>lo :botright lwindow<CR>
nnoremap <up>      :lprev<CR>zv
nnoremap <down>    :lnext<CR>zv
nnoremap <space>lc :lclose<CR>
nnoremap <space>lh :lhistory<CR>
nnoremap <space>lp :lolder<CR>
nnoremap <space>ln :lnewer<CR>

nnoremap <space>qo :botright cwindow<CR>
nnoremap <left>    :cprev<CR>zv
nnoremap <right>   :cnext<CR>zv
nnoremap <space>qc :cclose<CR>
nnoremap <space>qh :chistory<CR>
nnoremap <space>qp :colder<CR>
nnoremap <space>qn :cnewer<CR>

"}}}
"   insert mode mappings {{{
inoremap jkrg     <c-o>:reg<cr>
inoremap :w<cr>   :w<cr>
inoremap [:w<cr>   :w<cr>
inoremap {:w<cr>   :w<cr>

"}}}
"   working_with_underscores{{{
nnoremap <space>w f_l
nnoremap <space>b hT_
nnoremap <space>e lt_
onoremap u t_
onoremap U f_
"}}}
"----------------------------------------------------------------------------}}}
" #abbreviations {{{

" spelling"{{{
iabbrev adn and
iabbrev waht what
iabbrev tehn then
iabbrev functin function
iabbrev positin position

"}}}
" css{{{
iabbrev pabs; position: absolute;
iabbrev pfix; position: fixed;
iabbrev prel; position: relative;
iabbrev fdr; flex-direction: row;
iabbrev fdc; flex-direction: column;
iabbrev jcc; justify-content: center;
iabbrev aic; align-items: center;
iabbrev t0; top: 0;
iabbrev b0; bottom: 0;
iabbrev l0; left: 0;
iabbrev r0; right: 0;

iabbrev ct'' content-type: '';

"}}}

"----------------------------------------------------------------------------}}}
" #autocommands {{{

"   persistent folds {{{
  augroup AutoSaveFolds
    autocmd!
    autocmd BufWrite ?* mkview
    autocmd BufRead ?* silent! loadview
  augroup END

"  }}}
"   Show trailing whitepace and spaces before a tab: {{{
  augroup whitespaceerrors
    autocmd!
    autocmd Syntax * syn match ExtraWhitespace /\s\+$\| \+\ze\t/ containedin=ALL
  augroup END

"  }}}
"   automatically reload if color scheme file written {{{
"   augroup coloreload
"     autocmd!
"   	autocmd BufWritePost customred256.vim so $MYVIMRC
"   augroup end
"  

"  }}}
"   line numbering {{{
"     if exists('##CmdlineEnter')
"       augroup linenumbering
"         autocmd!
"         autocmd CmdlineEnter * :redraw | :set number
"         autocmd CmdlineLeave * :set nonumber
"       augroup END
    " endif

"  }}}
"   Automatically reload .vimrc if changed {{{
  augroup myvimrc
    autocmd!
    autocmd BufWritePost .vimrc,_vimrc,vimrc,.gvimrc,_gvimrc,gvimrc so $MYVIMRC | if has('gui_running') | so $MYGVIMRC | endif
  augroup END

"  }}}
"   Open quickfix window{{{
  augroup QuickFixAutoload
      autocmd!
      autocmd QuickFixCmdPost [^l]* nested botright cwindow
      autocmd QuickFixCmdPost l* nested botright lwindow
  augroup END

"  }}}

"----------------------------------------------------------------------------}}}
"

" vim: set foldmethod=marker: