.vimrc · Hugo Sibony

Part of my EPITA PIE starter kit: clangd LSP, auto-pairs, snippets, format-on-save, reinstalled at every PIE login.

Installation

curl -fsSL https://raw.githubusercontent.com/KazeTachinuu/epita-ing1-setup/master/setup.sh | sh

Exam Config

Exam machines have no AFS and no network, so nothing installs: memorize these 3 lines. Line 1 must come first, since writing any ~/.vimrc disables the built-in defaults.vim.

" EPITA exam vimrc - memorize these 3 lines, line 1 always first.
source $VIMRUNTIME/defaults.vim
set nu et sw=4 sts=4 cc=80
set hls ic scs cb=unnamedplus

" Line 1: restores vim's defaults (incsearch, scrolloff, mouse, filetype)
" Line 2: numbers, 4-space indent, 80-column marker
" Line 3: search highlight + smartcase, yank/paste = system clipboard
"
" Built-ins to use:
"   K           man page for word under cursor
"   Ctrl-N      complete identifiers (insert mode)
"   :make :cn   build, jump error to error
"   :term       shell in a split
"   *           highlight all uses of word under cursor
"   Ctrl-W s/v  split horizontal/vertical

PIE Config

" ============================================================================
" EPITA PIE vimrc - vim-full 9.2, zero install, superset of vimrc.exam
" ============================================================================
" Superset of vimrc.exam. Anything already covered by defaults.vim, the
" system vimrc, or ftplugins is not repeated here.

" Any user vimrc suppresses defaults.vim (incsearch, scrolloff, mouse,
" ttimeout, filetype indent, last-cursor-position) - restore it first.
source $VIMRUNTIME/defaults.vim

" All autocmds live in one group, cleared on load: re-sourcing this file
" is idempotent (no duplicated handlers).
augroup pie | autocmd! | augroup END

" ---- interface -------------------------------------------------------------
set number                             " line numbers
set mouse=a                            " mouse in all modes
set wildmode=longest:full,full         " complete longest, then cycle
set wildoptions=pum                    " popup completion menu for :commands
set laststatus=2                       " always show the statusline
set signcolumn=yes                     " stable gutter (LSP diagnostics)
set scrolloff=8                        " keep context around the cursor
set cursorline                         " highlight the current line
set breakindent                        " wrapped lines keep their indent
set splitright splitbelow              " new splits open right/below
set hidden                             " switch buffers without saving first
set autoread                           " pick up external file changes
set ttimeoutlen=50                     " short Esc key-code timeout
set clipboard=unnamedplus              " y/p use the system clipboard
" no clipboard manager on the PIE, so the X clipboard is lost when vim
" exits (vim never implemented SAVE_TARGETS); pass the last yank to xsel
" on exit so it stays pasteable
autocmd pie VimLeave * if !empty($DISPLAY) && !empty(getreg('+'))
    \ | silent! call system('xsel -ib', getreg('+')) | endif

" ---- colors ----------------------------------------------------------------
set termguicolors background=dark
silent! colorscheme habamax            " also: retrobox catppuccin sorbet

" ---- EPITA C style ---------------------------------------------------------
set colorcolumn=80                     " 80-column limit marker
set expandtab tabstop=4 shiftwidth=4 softtabstop=4  " 4-wide indent, spaces only
set shiftround                         " >> snaps to multiples of 4
set autoindent                         " new lines copy the current indent
set list listchars=tab:>-,trail:-      " show tabs and trailing spaces
" (0: continuation lines align under the open paren; :0: case labels flush
" with switch; fo+=j: joining lines drops redundant comment leaders
autocmd pie FileType c,cpp setlocal cinoptions=(0,:0 formatoptions+=j

" ---- search ----------------------------------------------------------------
set hlsearch ignorecase smartcase      " highlight all; smart casing
nnoremap <silent> <Esc><Esc> :nohlsearch<CR>

" ---- files -----------------------------------------------------------------
set undofile undodir=~/.vim/undo//     " undo history survives closing files
silent! call mkdir($HOME . '/.vim/undo', 'p')
set nowritebackup noswapfile           " no backup/swap files

" ---- movement --------------------------------------------------------------
" j/k move by screen line on wrapped text, by real line when counted (5j)
nnoremap <expr> j v:count ? 'j' : 'gj'
nnoremap <expr> k v:count ? 'k' : 'gk'
nnoremap <Down> gj
nnoremap <Up> gk
inoremap <Down> <C-o>gj
inoremap <Up> <C-o>gk
" half-page jumps and search hits keep the cursor centered
nnoremap <C-d> <C-d>zz
nnoremap <C-u> <C-u>zz
nnoremap n nzzzv
nnoremap N Nzzzv
" join lines without moving the cursor
nnoremap J mzJ`z

" ---- leader ----------------------------------------------------------------
nnoremap <Space> <Nop>
let mapleader = " "

" ---- files and buffers -----------------------------------------------------
let g:netrw_banner = 0                 " netrw: no banner,
let g:netrw_liststyle = 3              "        tree view
nnoremap <C-n> :Lexplore<CR>
set path+=**                           " :find any file in the repo

" ---- C workflow: build, jump, format ---------------------------------------
set autowrite                          " save before :make
nnoremap <leader>m :make<CR>
nnoremap <leader>n :cnext<CR>
nnoremap <leader>p :cprev<CR>
nnoremap <leader>q :copen<CR>
" Space-s: rename word under cursor across the file; the replacement is
" pre-filled with the word itself, cursor placed to edit it (\< \> = exact
" word, I = case-sensitive even with ignorecase set)
nnoremap <leader>s :%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>
" :Format runs the EPITA wrapper over the whole repo
if executable('clang-format-epita')
  command! Format !clang-format-epita
endif
if executable('clang-format')          " gq formats with the repo style
  autocmd pie FileType c,cpp setlocal
      \ formatprg=clang-format\ --style=file\ --fallback-style=none
endif

" auto-format C files on save (vim-clang-format plugin, cloned by
" install.sh; inert without it). Only when a .clang-format governs the file.
let g:clang_format#auto_format = 1
let g:clang_format#detect_style_file = 1
let g:clang_format#enable_fallback_style = 0

" ---- built-in plugins (also on exam machines) ------------------------------
packadd! termdebug                     " :Termdebug ./a.out - GDB UI in vim
packadd! comment                       " gcc / gc toggles comments
packadd! matchit                       " % jumps on #if / #endif
runtime ftplugin/man.vim               " :Man malloc (K also works bare)

" ---- LSP: clangd (preinstalled on the PIE) ---------------------------------
" install.sh clones yegappan/lsp into pack/kit/start; does nothing without it.
" Snippet support (function-argument placeholders) is enabled when vsnip is
" present; Tab jumps between placeholders.
autocmd pie User LspSetup call LspOptionsSet(extend(
    \ {'semanticHighlight': v:true, 'showDiagWithVirtualText': v:true},
    \ exists(':VsnipOpen') == 2
    \     ? {'snippetSupport': v:true, 'vsnipSupport': v:true} : {}))
" Tab expands a snippet at the cursor (main, for, if... from
" friendly-snippets), else jumps to the next placeholder, else is a Tab.
autocmd pie VimEnter * if exists(':VsnipOpen') == 2
    \ | imap <expr> <Tab> vsnip#expandable() ? '<Plug>(vsnip-expand)'
    \     : vsnip#jumpable(1) ? '<Plug>(vsnip-jump-next)' : '<Tab>'
    \ | smap <expr> <Tab> vsnip#expandable() ? '<Plug>(vsnip-expand)'
    \     : vsnip#jumpable(1) ? '<Plug>(vsnip-jump-next)' : '<Tab>'
    \ | imap <expr> <S-Tab>
    \     vsnip#jumpable(-1) ? '<Plug>(vsnip-jump-prev)' : '<S-Tab>'
    \ | smap <expr> <S-Tab>
    \     vsnip#jumpable(-1) ? '<Plug>(vsnip-jump-prev)' : '<S-Tab>'
    \ | endif
autocmd pie User LspSetup call LspAddServer([{
    \ 'name': 'clangd', 'filetype': ['c', 'cpp'],
    \ 'path': 'clangd',
    \ 'args': ['--background-index', '--fallback-style=none'] }])
autocmd pie User LspAttached nnoremap <buffer> gd :LspGotoDefinition<CR>
autocmd pie User LspAttached nnoremap <buffer> gD :LspGotoDeclaration<CR>
autocmd pie User LspAttached nnoremap <buffer> gr :LspShowReferences<CR>
autocmd pie User LspAttached nnoremap <buffer> <leader>r :LspRename<CR>
autocmd pie User LspAttached nnoremap <buffer> <leader>a :LspCodeAction<CR>
autocmd pie User LspAttached
    \ nnoremap <buffer> <leader>h :LspSwitchSourceHeader<CR>
autocmd pie User LspAttached nnoremap <buffer> ]d :LspDiag next<CR>
autocmd pie User LspAttached nnoremap <buffer> [d :LspDiag prev<CR>
autocmd pie User LspAttached nnoremap <buffer> K :LspHover<CR>

Dotfiles Config

The same config minus the PIE-only parts, installed by my dotfiles for when vi is needed.

" any user vimrc disables defaults.vim: restore it first
source $VIMRUNTIME/defaults.vim

" one autocmd group, cleared on re-source
augroup dotfiles | autocmd! | augroup END

" ---- interface -------------------------------------------------------------
set number                             " line numbers
set mouse=a                            " mouse in all modes
set wildmode=longest:full,full         " complete longest, then cycle
set wildoptions=pum                    " popup completion menu for :commands
set laststatus=2                       " always show the statusline
set scrolloff=8                        " keep context around the cursor
set cursorline                         " highlight the current line
set breakindent                        " wrapped lines keep their indent
set splitright splitbelow              " new splits open right/below
set hidden                             " switch buffers without saving first
set autoread                           " pick up external file changes
set ttimeoutlen=50                     " short Esc key-code timeout
set clipboard=unnamedplus              " y/p use the system clipboard

" ---- colors ----------------------------------------------------------------
set termguicolors background=dark
silent! colorscheme habamax

" ---- C style (EPITA) -------------------------------------------------------
set colorcolumn=80                     " 80-column limit marker
set expandtab tabstop=4 shiftwidth=4 softtabstop=4
set shiftround                         " >> snaps to multiples of 4
set autoindent
set list listchars=tab:>-,trail:-      " show tabs and trailing spaces
autocmd dotfiles FileType c,cpp setlocal cinoptions=(0,:0 formatoptions+=j

" ---- search ----------------------------------------------------------------
set hlsearch ignorecase smartcase      " highlight all; smart casing
nnoremap <silent> <Esc><Esc> :nohlsearch<CR>

" ---- files -----------------------------------------------------------------
set undofile undodir=~/.vim/undo//     " undo history survives closing files
silent! call mkdir($HOME . '/.vim/undo', 'p')
set nowritebackup noswapfile           " no backup/swap files

" ---- movement --------------------------------------------------------------
nnoremap <expr> j v:count ? 'j' : 'gj'
nnoremap <expr> k v:count ? 'k' : 'gk'
nnoremap <Down> gj
nnoremap <Up> gk
inoremap <Down> <C-o>gj
inoremap <Up> <C-o>gk
" half-page jumps and search hits keep the cursor centered
nnoremap <C-d> <C-d>zz
nnoremap <C-u> <C-u>zz
nnoremap n nzzzv
nnoremap N Nzzzv
" join lines without moving the cursor
nnoremap J mzJ`z

" ---- leader ----------------------------------------------------------------
nnoremap <Space> <Nop>
let mapleader = " "

" ---- files and buffers -----------------------------------------------------
let g:netrw_banner = 0                 " netrw: no banner,
let g:netrw_liststyle = 3              "        tree view
nnoremap <C-n> :Lexplore<CR>
set path+=**                           " :find any file in the repo

" ---- C workflow: build, jump, format ---------------------------------------
set autowrite                          " save before :make
nnoremap <leader>m :make<CR>
nnoremap <leader>n :cnext<CR>
nnoremap <leader>p :cprev<CR>
nnoremap <leader>q :copen<CR>
nnoremap <leader>s :%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>
if executable('clang-format')          " gq formats with the repo style
  autocmd dotfiles FileType c,cpp setlocal
      \ formatprg=clang-format\ --style=file\ --fallback-style=none
endif

" ---- built-in plugins -------------------------------------------------------
packadd! termdebug                     " :Termdebug ./a.out - GDB UI in vim
packadd! comment                       " gcc / gc toggles comments
packadd! matchit                       " % jumps on #if / #endif
runtime ftplugin/man.vim               " :Man malloc (K also works bare)