dotfiles/home/dot_vimrc

" designed for vim 8+ (and inspired by rwxrob) 
" https://github.com/starr-dusT/dotfiles

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" general 
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set autowrite " automatically write files on close

" tabs and spaces and stuff
set tabstop=4
set softtabstop=4
set shiftwidth=4
set expandtab

" undos
set undodir="~/.vim/undodir"
set undofile

" map leader to Space
let mapleader = " " 

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" ui
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syntax enable
set number
set colorcolumn=79
set updatetime=50
set scrolloff=8
set smartindent
set incsearch " hilight search matches while typing

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" wildmenu
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" ignore compiled files
set wildignore=*.o,*~,*.pyc
if has("win16") || has("win32")
    set wildignore+=.git\*,.hg\*,.svn\*
else
    set wildignore+=*/.git/*,*/.hg/*,*/.svn/*,*/.DS_Store
endif

" enable fuzzy finding in the vim command line
set path=$PWD/**        
set nowildmenu
set wildmode=list:full

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" netrw
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let g:netrw_banner = 0 " disable dumb banner

" use l and h for up/down dir
augroup netrw_setup | au!
    au FileType netrw nmap <buffer> l <CR>
    au FileType netrw nmap <buffer> h -
augroup END

map <leader>e :Ex <cr> " open explorer

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" marks
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" allow only global marks
noremap <silent> <expr> ' "'".toupper(nr2char(getchar()))
noremap <silent> <expr> m "m".toupper(nr2char(getchar()))
sunmap '
sunmap m

nnoremap <silent> ' :call ListSelect("marks", "'")<CR> " list jumps/marks
map <leader>md :delmarks A-Z0-9 <cr>                   " clear marks

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" grep
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set grepprg=grep\ -snH\ $* " use system grep
command! -nargs=+ -complete=file_in_path -bar Grep  cgetexpr Grep(<f-args>)
command! -nargs=+ -complete=file_in_path -bar LGrep lgetexpr Grep(<f-args>)

" open quickfix
augroup quickfix
	autocmd!
	autocmd QuickFixCmdPost cgetexpr cwindow
	autocmd QuickFixCmdPost lgetexpr lwindow
augroup END

" grep into quickfix/location list
map <leader>fq :Grep -r<space>
map <leader>fl :LGrep -r<space>

" next/last location
map <leader>nl :lnext<CR>
map <leader>pl :lprev<CR>

" next/last quickfix
map <leader>nc :lnext<CR>
map <leader>pc :lnext<CR>

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" misc keys
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" open help with word under cursor 
map <leader>oh :execute "help " . expand("<cword>")<CR>

" move between splits with hjkl
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" find
map <leader>ff :find *

" change directories
map <leader>cc :cd<space>
map <leader>cd :cd ~/.local/share/chezmoi  <cr>

" open common files
map <leader>ov :e ~/.local/share/chezmoi/home/dot_vimrc <cr>

" functions keys
map <F1> :set number!<CR> :set relativenumber!<CR>
map <F2> :set list!<CR>
map <F3> :set cursorline!<CR>
map <F4> :set spell!<CR>

" better use of arrow keys, number increment/decrement
nnoremap <up> <C-a>
nnoremap <down> <C-x>

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" helpers
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" display and select from a list of marks and jumps
" https://vi.stackexchange.com/a/42965
"
function! ListSelect(command, jump)
  execute a:command
  echohl Question
  echo "Enter mark (ESC to cancel): "
  echohl NONE
  let mark = toupper(nr2char(getchar()))
  redraw
  if mark !=# "\e"
    try
      execute "normal! g" .. a:jump .. mark
    catch
      echohl ErrorMsg
      echo substitute(v:exception, "^Vim(.*):", "", "")
      echohl NONE
    endtry
  endif
endfunction

" better grep wrapper 
" https://gist.github.com/romainl/56f0c28ef953ffc157f36cc495947ab3
"
function! Grep(...)
	return system(join([&grepprg] + [expandcmd(join(a:000, ' '))], ' '))
endfunction