dotfiles/editors/vim/vimrc

set nocompatible

let mapleader = "\<Space>"

if empty(glob('~/.vim/autoload/plug.vim'))
  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
      \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall | source $MYVIMRC
endif

call plug#begin('~/.cache/vim/plugs')

Plug 'w0ng/vim-hybrid' " color scheme
Plug 'mhinz/vim-startify'
let g:startify_session_autoload = 1
let g:startify_fortune_use_unicode = 1

Plug 'tpope/vim-sensible' " Sensible defaults, duh

" Out of the box support for many languages
Plug 'sheerun/vim-polyglot'

Plug 'scrooloose/nerdtree'
let NERDTreeWinPos='right'

Plug 'mbbill/undotree', { 'on': ['UndotreeToggle', 'UndotreeFocus', 'UndotreeShow', 'UndotreeHide'] }
let g:undotree_WindowLayout = 2
let g:undotree_SetFocusWhenToggle = 1
nmap <leader>u :UndotreeToggle<CR>
nmap <leader>tu :UndotreeToggle<CR>

Plug 'tpope/vim-commentary'
" There is no ASCII char for Control+/ (common shortcut for commentign), but
" most terminals match that key combo to Control+_, so we will capture that
" instead.
nmap <C-_> gcc
xmap <C-_> gcgv
imap <C-_> <C-\><C-O>gcc

Plug 'tpope/vim-dispatch'
Plug 'tpope/vim-eunuch'
Plug 'tpope/vim-endwise'  " Auto-add 'end' etc appropriately in various languages
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-git'
Plug 'tpope/vim-repeat'
Plug 'tpope/vim-sleuth'   " auto-config indent and tabs etc based on other files
Plug 'tpope/vim-surround' " quoting/parenthesizing made simple
Plug 'tpope/vim-vinegar'  " Nicer netrw
Plug 'terryma/vim-expand-region'
if has('signs')
  Plug 'airblade/vim-gitgutter'
endif
Plug 'kana/vim-smartinput' " smart pairwise characters

Plug '~/.fzf' " Installation of bins handled by Fresh, separately
Plug 'junegunn/fzf.vim'
if executable('ag')
  let $FZF_DEFAULT_COMMAND = 'ag -l --hidden .'
endif
map <Leader><Leader> :GFiles<CR>
map <Leader>t :Files<CR>
map <C-p> :Files<CR>
" autocmd FileType fzf nmap <buffer> <silent> <ESC> :q<CR>

" make t, f, T, F, etc all multi-line
Plug 'dahu/vim-fanfingtastic'

" Preview register contents before selecting the register
Plug 'junegunn/vim-peekaboo'

Plug 'junegunn/vim-easy-align', { 'on': ['<Plug>(EasyAlign)', 'EasyAlign'] }
vmap <Enter> <Plug>(EasyAlign)

" When re-opening a file, start cursor on last edit location
Plug 'farmergreg/vim-lastplace'

Plug 'thisivan/vim-matchit' " extended  matching for html, latex, and many other languages
Plug 'kana/vim-textobj-user' " Create new text objects
Plug 'michaeljsmith/vim-indent-object'

Plug 'haya14busa/incsearch.vim', { 'on': ['<Plug>(incsearch-forward)', '<Plug>(incsearch-backward)', '<Plug>(incsearch-stay)']}
Plug 'haya14busa/incsearch-fuzzy.vim', { 'on': ['<Plug>(incsearch-fuzzy-/)', '<Plug>(incsearch-fuzzy-?)', '<Plug>(incsearch-fuzzy-stay)']}
nmap /  <Plug>(incsearch-forward)
xmap /  <Plug>(incsearch-forward)
nmap ?  <Plug>(incsearch-backward)
xmap ?  <Plug>(incsearch-backward)
map g/ <Plug>(incsearch-stay)
map z/  <Plug>(incsearch-fuzzy-/)
map z?  <Plug>(incsearch-fuzzy-?)
nmap zg/ <Plug>(incsearch-fuzzy-stay)

Plug 'Yggdroot/indentLine'
let g:indentLine_color_term = 239
let g:indentLine_color_gui = '#504945'
let g:indentLine_fileTypeExclude = ['help', 'man', 'startify', 'vimfiler', 'json']
let g:indentLine_char = '┊'

" Run a find-and-replace using the last search term
nnoremap <M-r> :%s/<C-r>///g<Left><Left>

" Make * and # work with a visual selection (in normal mode, it falls back to
" default behaviour of searching for current word)
Plug 'thinca/vim-visualstar'

Plug 'neoclide/coc.nvim', {'tag': '*', 'do': { -> coc#util#install()}}

Plug 'liuchengxu/vim-which-key' ", { 'on': ['WhichKey', 'WhichKey!'] }
autocmd! User vim-which-key call which_key#register('<Space>', 'g:which_key_map')
nnoremap <silent> <leader> :<c-u>WhichKey '<Space>'<CR>

Plug 'tpope/vim-bundler'
Plug 'tpope/vim-rails'
Plug 'tpope/vim-rake'
Plug 'thisivan/vim-ruby-matchit'
Plug 'nelstrom/vim-textobj-rubyblock', { 'for': 'ruby' }

Plug 'gko/vim-coloresque'

Plug 'w0rp/ale'
let g:ale_fix_on_save = 1
let g:ale_completion_enabled = 1
let g:ale_fixers = {
\   '*': ['remove_trailing_lines', 'trim_whitespace'],
\   'javascript': ['eslint'],
\   'ruby': ['rubocop'],
\}

Plug 'vim-airline/vim-airline'
let g:airline_powerline_fonts = 1
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'

call plug#end()
hi Normal ctermbg=none

" if hidden not set, TextEdit might fail.
set hidden

" Better display for messages
set cmdheight=2

" Smaller updatetime for CursorHold & CursorHoldI
set updatetime=300

" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> for trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" Use <cr> for confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
"inoremap <expr> <CR> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" NOTE: above mapping disabled due to https://github.com/tpope/vim-endwise/issues/22#issuecomment-446042476

" Use `[c` and `]c` for navigate diagnostics
nmap <silent> [c <Plug>(coc-diagnostic-prev)
nmap <silent> ]c <Plug>(coc-diagnostic-next)

" Remap keys for gotos
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K for show documentation in preview window
nnoremap <silent> K :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if &filetype == 'vim'
    execute 'h '.expand('<cword>')
  else
    call CocAction('doHover')
  endif
endfunction

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
vmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

" Setup formatexpr specified filetype(s).
augroup mygroup
  autocmd!
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
augroup end

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
vmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)

syntax on

" Visual
  set ruler
  set guioptions=ce
  set showmatch                  " Briefly jump to a paren once it's balanced
  set linespace=2
  set background=dark
  set laststatus=2
  colorscheme hybrid

" Tabs/Whitespace
  set tabstop=2                  " a Tab take up 2 spaces
  set shiftwidth=2               " (un)indent 2 spaces at at ime
  set autoindent                 " preserve previous indent level when inserting new line
  set smarttab                   " insert/delete a tab's work of spaces at a time
  set expandtab                  " insert actual spaces, not tabs
  set nowrap                     " don't wrap long lines
  set backspace=indent,eol,start " allow backspacing over everything in insert mode

  " Toggle show tabs and trailing spaces (,c)
  set list
  set listchars=tab:⤑\ ,trail:·,eol:↵,nbsp:_
  set fillchars=vert:\ ,fold:-
  nnoremap <Leader>c :set list!<CR>

" Misc
  set switchbuf=useopen         " Don't re-open already opened buffers
  set nostartofline             " Avoid moving cursor to BOL when jumping around
  set virtualedit=all           " Let cursor move past the last char
  set whichwrap=b,s,h,l,<,>,[,]
  set autoread                  " watch for file changes
  set mouse=a                   " mouse can be handy sometimes
  if !has('nvim')
    set ttymouse=xterm2         " Needed to get mouse working when in Tmux/screen
  endif
  set fileformats=unix
  set history=1000
  set title                     " Show title in Terminal

" Bells
  set visualbell              " No blinking
  set noerrorbells              " No noise.
  set vb t_vb=                  " disable any beeps or flashes on error

" Searching
  set hlsearch                  " highlight search matches and keep them highlighted
  set incsearch                 " start matching search before hitting enter
  set ignorecase                " case-insensitive searching by default
  set smartcase                 " but if searching with multiple cases, treat it as case-sensitive

  " center current search result in middle of screen
  nnoremap n nzz
  nnoremap N Nzz
  nnoremap * *zz
  nnoremap # #zz
  nnoremap g* g*zz
  nnoremap g# g#zz

" Work around bug that leaves cursor in middle of line
  nnoremap dd ddI<Esc>

" Tab completion
  set wildmode=list:longest,list:full
  set wildignore+=*.o,*.obj,.git,*.rbc,*.swp

" Directories for swp files

" Navigate cursor up/down by lines on screen, not lines in file
  nmap j gj
  nmap k gk

" Reselect visual block after adjusting indentation
  vnoremap < <gv
  vnoremap > >gv

" Adjust indentation with single keypress
  nnoremap < <<
  nnoremap > >>

" Nicer splitting
  set splitbelow
  set splitright

" Emacs-like keys for the command line and insert mode
  noremap! <C-A> <Home>
  noremap! <C-E> <End>

"  Always show cursorline, but only in current window.
  set scrolloff=3
  set scrolljump=10

set number          " line numbers
set relativenumber

" I keep deleting words when I want to switch windows
imap <C-w> <Esc><C-w>

" Map control-S to save (<C-U> makes sure no range is inserted into command
" execution)
nmap <silent> <C-s> :<C-U>w<CR>
vmap <silent> <C-s> :<C-U>w<CR>gv

" Share clipboard with OS
set clipboard=unnamed,unnamedplus

" May only work in iTerm2 and may have other bad effects,
" but this shows a block in normal mode, and vertical bar
" in insert mode.
if exists('$TMUX')
  " https://github.com/sjl/vitality.vim/issues/8#issuecomment-7664649
  let &t_SI = "\<Esc>[3 q"
  let &t_EI = "\<Esc>[0 q"

  if !has('nvim')
    set term=screen-256color
  endif
else
  let &t_SI = "\<Esc>]50;CursorShape=1\x7"
  let &t_EI = "\<Esc>]50;CursorShape=0\x7"
endif

runtime macros/matchit.vim

function! <SID>StripTrailingWhitespaces()
  " Preparation: save last search, and cursor position.
  let _s=@/
  let l = line(".")
  let c = col(".")
  " Do the business:
  %s/\s\+$//e
  " Clean up: restore previous search history, and cursor position
  let @/=_s
  call cursor(l, c)
endfunction

" Strip trailing whitespace on command
nmap <Leader>sw :call <SID>StripTrailingWhitespaces()<CR>

augroup the_rest
  au!

  if !has('nvim')
    " Attempted fix for Vim losing mouse support when inside Tmux
    autocmd TermResponse,CursorHold,CursorHoldI * set ttymouse=xterm2
  endif

  " Create parent directory if it doesn't exist before writing file
  " (http://stackoverflow.com/questions/4292733/vim-creating-parent-directories-on-save)
  autocmd BufWritePre * if expand("<afile>")!~#'^\w\+:/' && !isdirectory(expand("%:h")) | execute "silent! !mkdir -p ".shellescape(expand('%:h'), 1) | redraw! | endif

  " make and python use real tabs
  autocmd FileType make    set noexpandtab
  autocmd FileType python  set noexpandtab

  autocmd BufRead,BufNewFile gitconfig set ft=gitconfig

  " Strip trailing whitespace on save
  autocmd BufWritePre * :call <SID>StripTrailingWhitespaces()
augroup end

silent! !bash -c "mkdir -p ~/.cache/vim/{backups,swaps,undos} &>/dev/null"
set undofile                            " persistent undos
set undodir=~/.cache/vim/undos//        " where to store undo histories (trailing // is important)
set directory=~/.cache/vim/swaps//      " store swap files here (trailing // is important)
set backupdir=~/.cache/vim/backups//    " store file backups here (trailing // is important)
set backupskip=/tmp/*,/private/tmp/*"   " don't use backups for tmp files

set autoread

set modeline
set modelines=5

" For when you forget to sudo.. Really Write the file.
cmap w!! w !sudo tee % >/dev/null

" CTags
map <Leader>rt :!ctags --extra=+f -R *<CR><CR>
set tags=tmp/tags;/,./tmp/tags;/,tags;/,./tags;/

nmap <leader>tp :set invpaste paste?<CR>
nmap <leader>tn :set invnumber number?<CR>
nmap <leader>tr :set invrelativenumber relativenumber?<CR>

if executable('ag')
  let g:ackprg = 'ag --vimgrep --hidden'
endif
 " comment line
" For working on highlight/syntax rules
map <F10> :echo "hi<" . synIDattr(synID(line("."),col("."),1),"name") . '> trans<' . synIDattr(synID(line("."),col("."),0),"name") . "> lo<" . synIDattr(synIDtrans(synID(line("."),col("."),1)),"name") . ">"<CR>

" I pretty much only work with Postgres SQL, so assume *.sql files belong to
" that syntax:
let g:sql_type_default = 'pgsql'

" Make copy/paste work kinda normally
"
" https://stackoverflow.com/a/14786750/1155048
set pastetoggle=<F10>
inoremap <C-v> <F10><C-r>+<F10>
vnoremap <C-c> "+y

" Copy current file path to clipboard
nnoremap <C-c> :let @+ = expand("%:p") \| echo '"' . expand("%:p") . '" copied to clipboard.'<CR>

" Search for current visual selection
vnoremap <C-f> y<ESC>/<c-r>"<CR>

" Bubble lines up/down
nmap <M-k> :m-2<CR>
nmap <M-j> :m+1<CR>
nmap <M-Up> :m-2<CR>
nmap <M-Down> :m+1<CR>
vmap <M-k> :m-2<CR>gv
vmap <M-j> :m'>+1<CR>gv
vmap <M-Up> :m-2<CR>gv
vmap <M-Down> :m'>+1<CR>gv

" highlight last inserted text
nnoremap gV `[v`]

nmap <silent> [b :bprevious<CR>
nmap <silent> ]b :bnext<CR>
nmap <silent> ]t :tprevious<CR>
nmap <silent> [t :tnext<CR>

" Show incremental previews of commands (such as :s[ubstitute])
set inccommand=nosplit

" Start elixir tooling with a custom MIX_ENV so that compilation by that
" tooling doesn't negatively affect Phoenix auto-reloading
"
" https://github.com/phoenixframework/phoenix/issues/1165#issuecomment-437130681
let $MIX_ENV='editor'

if filereadable(expand('~/.vimrc.local'))
  source ~/.vimrc.local
endif