Use has-patch for wildoptions, instead of silent!

This syntax is only supported in Vim 8.2 or higher, so this means older
Vims won't work properly, but I don't really have much of a reason to
use older Vims than that anyway.

Note that because plugins.vim now requires Vim 8.2+, it doesn't need to
bother providing special support for Vims that don't have the packages
feature, since packages were added before Vim9 script anyway.

config/vim/init.vim

@@ -1,43 +1,39 @@
+vim9script
 set encoding=utf-8
 scriptencoding utf-8
 
-function! s:ensure_dir(dir)
-  if filewritable(a:dir) != 2
-    call mkdir(a:dir, "p", 0700)
+def EnsureDir(dir: string): void
+  if filewritable(dir) != 2
+    mkdir(dir, "p", 0700)
   endif
-endfunction
+enddef
 
-if exists('+packpath')
-  " These are really clever - minpac will actually be loaded on the fly only
-  " when you need to update or clean your packages, rather than all the time.
-  command! PackUpdate source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#update()
-  command! PackClean  source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#clean()
-  command! PackStatus source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#status()
+# These are really clever - minpac will actually be loaded on the fly only
+# when you need to update or clean your packages, rather than all the time.
+command! PackUpdate source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#update()
+command! PackClean  source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#clean()
+command! PackStatus source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#status()
 
-  " If the pack directory doesn't exist, we haven't installed any packages yet,
-  " so let's call PackUpdate.
-  if !isdirectory($XDG_CACHE_HOME . '/vim/pack')
+# If the pack directory doesn't exist, we haven't installed any packages yet,
+# so let's call PackUpdate.
+if !isdirectory($XDG_CACHE_HOME .. '/vim/pack')
   PackUpdate
 endif
-else
-  " If we're on a version of Vim that doesn't have packages, we have to load a
-  " plugin manager (vim-plug) on every boot.
-  source $XDG_CONFIG_HOME/vim/plugins.vim
-endif
 
 augroup transparent_term
   autocmd!
   autocmd ColorScheme * highlight Normal ctermbg=NONE guibg=NONE
 augroup END
+
 set background=dark
-let g:gruvbox_italic=1
-let g:gruvbox_improved_strings=1
-let g:gruvbox_improved_warnings=1
+g:gruvbox_italic = 1
+g:gruvbox_improved_strings = 1
+g:gruvbox_improved_warnings = 1
 
 if has('gui_running') || has('termguicolors')
   set termguicolors
   silent! packadd gruvbox
-  let g:airline_theme = 'gruvbox'
+  g:airline_theme = 'gruvbox'
   colorscheme gruvbox
 else
   colorscheme inkpot
@@ -57,6 +53,9 @@ set linebreak showbreak=↩
 set modelines=5
 set showcmd
 set wildmode=longest,full
+if has('patch-8.2.4325')
+  set wildoptions+=pum
+endif
 
 set tabstop=2 shiftwidth=2
 
@@ -70,8 +69,8 @@ else
   set number
 endif
 
-for s:dir in ['backup', 'swap', 'undo']
-  call s:ensure_dir($XDG_STATE_HOME . '/vim/' . s:dir)
+for dir in ['backup', 'swap', 'undo']
+  EnsureDir($XDG_STATE_HOME .. '/vim/' .. dir)
 endfor
 
 set backupdir=.,$XDG_STATE_HOME/vim/backup
@@ -81,22 +80,22 @@ if exists('+undofile')
   set undodir=$XDG_STATE_HOME/vim/undo
 endif
 
-let g:airline_powerline_fonts = 1
-let g:airline#extensions#battery#enabled = 1
+g:airline_powerline_fonts = 1
+g:airline#extensions#battery#enabled = 1
 
-let g:csv_no_conceal = 1
+g:csv_no_conceal = 1
 
-let vim_svelte_plugin_use_typescript = 1
+g:vim_svelte_plugin_use_typescript = 1
 
-let g:LatexBox_Folding = 1
-let g:NERDTreeHijackNetrw = 1
+g:LatexBox_Folding = 1
+g:NERDTreeHijackNetrw = 1
 
-let g:ale_set_balloons = 1
+g:ale_set_balloons = 1
 nmap <silent> <C-k> <Plug>(ale_previous_wrap)
 nmap <silent> <C-j> <Plug>(ale_next_wrap)
 
-let g:mucomplete#can_complete = {
-  \'default': {
-    \'omni': {t -> strlen(&l:omnifunc) > 0 && t =~# '\m\k\%(\k\|\.\)$'}
-  \}
-\}
+g:mucomplete#can_complete = {
+  default: {
+    omni: (t) => strlen(&l:omnifunc) > 0 && t =~# '\m\k\%(\k\|\.\)$'
+  }
+}

config/vim/plugins.vim

@@ -1,116 +1,87 @@
-if exists('+packpath')
+vim9script
 silent! packadd minpac
 if !exists('g:loaded_minpac')
   silent !git clone https://github.com/k-takata/minpac.git $XDG_CACHE_HOME/vim/pack/minpac/opt/minpac
-    augroup minpac
+  augroup minpac {
     autocmd!
     autocmd VimEnter * call minpac#update()
-    augroup END
+  }
 endif
-
-  function! Plug(...)
-    call call('minpac#add', a:000)
-  endfunction
-
-  function! PlugEnd()
-  endfunction
-
 packadd minpac
 
-  call minpac#init({'dir': $XDG_CACHE_HOME . '/vim'})
-else
-  if !filereadable($XDG_CACHE_HOME . '/vim/autoload/plug.vim')
-    silent !curl -fLo $XDG_CACHE_HOME/vim/autoload/plug.vim --create-dirs 'https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
-    augroup vimplug
-      autocmd VimEnter * PlugInstall
-    augroup END
-  endif
+minpac#init({dir: $XDG_CACHE_HOME .. '/vim'})
+minpac#add('k-takata/minpac', {type: 'opt'})
+minpac#add('tpope/vim-sensible')
+minpac#add('prabirshrestha/async.vim')
 
-  function! Plug(name, ...)
-    call plug#(a:name)
-  endfunction
+minpac#add('ciaranm/inkpot', {type: 'opt', do: 'colorscheme inkpot'})
+minpac#add('morhetz/gruvbox', {type: 'opt'})
 
-  function! PlugEnd()
-    call plug#end()
-  endfunction
+minpac#add('direnv/direnv.vim')
+minpac#add('editorconfig/editorconfig-vim')
+minpac#add('godlygeek/tabular')
+minpac#add('jamessan/vim-gnupg')
+minpac#add('junegunn/vim-easy-align')
+minpac#add('lifepillar/vim-mucomplete')
+minpac#add('lotabout/skim')
+minpac#add('lotabout/skim.vim')
+minpac#add('mhinz/vim-signify')
+minpac#add('scrooloose/nerdtree')
+minpac#add('sjl/vitality.vim')
+minpac#add('tpope/vim-apathy')
+minpac#add('tpope/vim-commentary')
+minpac#add('tpope/vim-dadbod')
+minpac#add('tpope/vim-endwise')
+minpac#add('tpope/vim-eunuch')
+minpac#add('tpope/vim-fugitive')
+minpac#add('tpope/vim-repeat')
+minpac#add('tpope/vim-rhubarb')
+minpac#add('tpope/vim-sleuth')
+minpac#add('tpope/vim-surround')
+minpac#add('tpope/vim-unimpaired')
 
-  call plug#begin($XDG_CACHE_HOME . '/vim/plugged')
-endif
+minpac#add('wincent/loupe')
+minpac#add('wincent/terminus')
+minpac#add('w0rp/ale')
 
-call Plug('k-takata/minpac', {'type': 'opt'})
-call Plug('tpope/vim-sensible')
-call Plug('prabirshrestha/async.vim')
+minpac#add('neoclide/coc.nvim', {branch: 'release'})
 
-call Plug('ciaranm/inkpot', {'type': 'opt', 'do': 'colorscheme inkpot'})
-call Plug('morhetz/gruvbox', {'type': 'opt'})
+minpac#add('vim-airline/vim-airline')
+minpac#add('vim-airline/vim-airline-themes')
+minpac#add('lambdalisue/battery.vim')
 
-call Plug('direnv/direnv.vim')
-call Plug('editorconfig/editorconfig-vim')
-call Plug('godlygeek/tabular')
-call Plug('jamessan/vim-gnupg')
-call Plug('junegunn/vim-easy-align')
-call Plug('lifepillar/vim-mucomplete')
-call Plug('lotabout/skim')
-call Plug('lotabout/skim.vim')
-call Plug('mhinz/vim-signify')
-call Plug('scrooloose/nerdtree')
-call Plug('sjl/vitality.vim')
-call Plug('tpope/vim-apathy')
-call Plug('tpope/vim-commentary')
-call Plug('tpope/vim-dadbod')
-call Plug('tpope/vim-endwise')
-call Plug('tpope/vim-eunuch')
-call Plug('tpope/vim-fugitive')
-call Plug('tpope/vim-repeat')
-call Plug('tpope/vim-rhubarb')
-call Plug('tpope/vim-sleuth')
-call Plug('tpope/vim-surround')
-call Plug('tpope/vim-unimpaired')
+minpac#add('alvan/vim-closetag')
+minpac#add('LaTeX-Box-Team/LaTeX-Box')
+minpac#add('vhda/verilog_systemverilog.vim')
+minpac#add('sheerun/vim-polyglot')
 
-call Plug('wincent/loupe')
-call Plug('wincent/terminus')
-call Plug('w0rp/ale')
+minpac#add('eipipuz/factor.vim')
 
-call Plug('neoclide/coc.nvim', {'branch': 'release'})
+minpac#add('ehamberg/vim-cute-python')
+minpac#add('Glench/Vim-Jinja2-Syntax')
+minpac#add('tweekmonster/braceless.vim')
 
-call Plug('vim-airline/vim-airline')
-call Plug('vim-airline/vim-airline-themes')
-call Plug('lambdalisue/battery.vim')
+minpac#add('ternjs/tern_for_vim', {do: () => async#job#start(['npm', 'install'], {})})
+minpac#add('vito-c/jq.vim')
 
-call Plug('alvan/vim-closetag')
-call Plug('LaTeX-Box-Team/LaTeX-Box')
-call Plug('vhda/verilog_systemverilog.vim')
-call Plug('sheerun/vim-polyglot')
+minpac#add('fladson/vim-kitty')
 
-call Plug('eipipuz/factor.vim')
+minpac#add('fpob/nette.vim')
 
-call Plug('ehamberg/vim-cute-python')
-call Plug('Glench/Vim-Jinja2-Syntax')
-call Plug('tweekmonster/braceless.vim')
-
-call Plug('ternjs/tern_for_vim', {'do': {-> async#job#start(['npm', 'install'], {})}})
-call Plug('vito-c/jq.vim')
-
-call Plug('fladson/vim-kitty')
-
-call Plug('fpob/nette.vim')
-
-call Plug('leafOfTree/vim-svelte-plugin')
+minpac#add('leafOfTree/vim-svelte-plugin')
 
 if executable('task')
-  call Plug('farseer90718/vim-taskwarrior')
+  minpac#add('farseer90718/vim-taskwarrior')
 endif
 
-call Plug('pedrohdz/vim-yaml-folds')
+minpac#add('pedrohdz/vim-yaml-folds')
 
-call Plug('alx741/yesod.vim')
-call Plug('pbrisbin/vim-syntax-shakespeare')
+minpac#add('alx741/yesod.vim')
+minpac#add('pbrisbin/vim-syntax-shakespeare')
 
 if has('macunix')
-  call Plug('rizzatti/dash.vim')
-  " We rename this plugin to make sure it loads AFTER vim-polyglot,
-  " since it won't work properly if it's loaded first.
-  call Plug('itspriddle/vim-marked', {'name': 'zzvim-marked'})
+  minpac#add('rizzatti/dash.vim')
+  # We rename this plugin to make sure it loads AFTER vim-polyglot,
+  # since it won't work properly if it's loaded first.
+  minpac#add('itspriddle/vim-marked', {name: 'zzvim-marked'})
 endif
-
-call PlugEnd()

vimrc

@@ -1,6 +1,13 @@
-for [s:var, s:value] in items({'XDG_CONFIG_HOME': '~/.config', 'XDG_CACHE_HOME': '~/.cache', 'XDG_DATA_HOME': '~/.local/share', 'XDG_STATE_HOME': '~/.local/state'})
-  if (empty(eval('$' . s:var)))
-    exec 'let $' . s:var . ' = expand(s:value)'
+vim9script
+const xdg = {
+  XDG_CONFIG_HOME: '~/.config',
+  XDG_CACHE_HOME: '~/.cache',
+  XDG_DATA_HOME: '~/.local/share',
+  XDG_STATE_HOME: '~/.local/state',
+}
+for [key, default] in items(xdg)
+  if !has_key(environ(), key)
+    setenv(key, expand(default))
   endif
 endfor
 
@@ -9,7 +16,7 @@ set viminfo+=n$XDG_STATE_HOME/vim/viminfo
 if exists('+packpath')
   set packpath^=$XDG_CONFIG_HOME/vim,$XDG_CACHE_HOME/vim
 endif
-let g:netrw_home = $XDG_CACHE_HOME . '/vim/netrw'
+g:netrw_home = $XDG_CACHE_HOME .. '/vim/netrw'
 
-let $MYVIMRC = $XDG_CONFIG_HOME . '/vim/init.vim'
+$MYVIMRC = $XDG_CONFIG_HOME .. '/vim/init.vim'
 source $MYVIMRC