vimrc

.vimrc

" =============================================================================
" ~/.vimrc — pragmatic config for Unix / Ruby / Python / Julia / Node / Make
" No plugins required for base functionality. Optional plug block at the end.
" =============================================================================

set nocompatible
set encoding=utf-8
scriptencoding utf-8
syntax on
filetype plugin indent on

" --- UI ----------------------------------------------------------------------
"set number relativenumber            " hybrid line numbers
set number " normal line numbers
set cursorline
set showmatch
set ruler laststatus=2 showcmd
set wildmenu
set wildmode=longest:full,full
set wildignore+=*.o,*.obj,*.pyc,*.class,*.so,*.swp,node_modules/**,.git/**
set signcolumn=yes
set scrolloff=8 sidescrolloff=8
set splitbelow splitright
set lazyredraw ttyfast title
if has('termguicolors') && ($COLORTERM =~# 'truecolor\|24bit')
  set termguicolors
endif
set background=dark
silent! colorscheme habamax          " ships with Vim 9; silent fallback otherwise

" --- Editing -----------------------------------------------------------------
set backspace=indent,eol,start
set hidden                           " allow unsaved buffers in background
set mouse=a
set clipboard^=unnamed,unnamedplus   " use system clipboard (needs +clipboard)
set autoread
set autoindent smartindent
set expandtab
set tabstop=2 softtabstop=2 shiftwidth=2
set shiftround smarttab
set nowrap linebreak
set nojoinspaces

" --- Search ------------------------------------------------------------------
set incsearch hlsearch
set ignorecase smartcase
if executable('rg')
  set grepprg=rg\ --vimgrep\ --smart-case\ --hidden
  set grepformat=%f:%l:%c:%m
endif

" --- History / undo / swap (keep the project tree clean) ---------------------
set history=1000 undolevels=1000
set undofile
set undodir=~/.vim/undo//
set backupdir=~/.vim/backup//
set directory=~/.vim/swap//
silent! call mkdir(expand('~/.vim/undo'),   'p')
silent! call mkdir(expand('~/.vim/backup'), 'p')
silent! call mkdir(expand('~/.vim/swap'),   'p')

" --- Responsiveness ----------------------------------------------------------
set updatetime=300
set timeoutlen=500 ttimeoutlen=10

" --- Leader + core mappings --------------------------------------------------
let mapleader = ' '
let maplocalleader = '\'

nnoremap <leader>w :write<CR>
nnoremap <leader>q :quit<CR>
nnoremap <silent> <leader><space> :nohlsearch<CR>

" Window nav
nnoremap <C-h> <C-w>h
nnoremap <C-j> <C-w>j
nnoremap <C-k> <C-w>k
nnoremap <C-l> <C-w>l

" Buffer nav
nnoremap <leader>bn :bnext<CR>
nnoremap <leader>bp :bprevious<CR>
nnoremap <leader>bd :bdelete<CR>

" Keep visual selection after shifting
vnoremap < <gv
vnoremap > >gv

" Move visual selection
vnoremap J :m '>+1<CR>gv=gv
vnoremap K :m '<-2<CR>gv=gv

" Edit / reload vimrc
nnoremap <leader>ve :edit   $MYVIMRC<CR>
nnoremap <leader>vs :source $MYVIMRC<CR>

" --- Language-specific -------------------------------------------------------
augroup ft_indents
  autocmd!
  autocmd FileType ruby,eruby,yaml,javascript,typescript,json,html,css,scss
    \ setlocal tabstop=2 softtabstop=2 shiftwidth=2
  autocmd FileType python    setlocal tabstop=4 softtabstop=4 shiftwidth=4
                                \ textwidth=99 colorcolumn=100
  autocmd FileType julia     setlocal tabstop=4 softtabstop=4 shiftwidth=4
  autocmd FileType go        setlocal noexpandtab tabstop=4 shiftwidth=4
  autocmd FileType make      setlocal noexpandtab              " Make needs real tabs
  autocmd FileType markdown  setlocal wrap linebreak spell spelllang=en_us
  autocmd FileType gitcommit setlocal spell spelllang=en_us textwidth=72
augroup END

" Filetype plugins keep re-adding cro; override per buffer
augroup no_autocomment
  autocmd!
  autocmd FileType * setlocal formatoptions-=c formatoptions-=r formatoptions-=o
augroup END

" Strip trailing whitespace on save (except where it matters)
augroup strip_trailing
  autocmd!
  autocmd BufWritePre * if index(['markdown','diff','mail'], &ft) < 0
        \ | let s:v = winsaveview() | %s/\s\+$//e | call winrestview(s:v) | endif
augroup END

" Remember cursor position
augroup remember_cursor
  autocmd!
  autocmd BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$")
        \ | execute "normal! g`\"" | endif
augroup END

" --- Netrw (built-in file explorer, no plugin needed) ------------------------
let g:netrw_banner = 0
let g:netrw_liststyle = 3
let g:netrw_winsize = 25
nnoremap <leader>e :Lexplore<CR>

" =============================================================================
" OPTIONAL: vim-plug — uncomment, install vim-plug, then :PlugInstall
"   https://github.com/junegunn/vim-plug
" =============================================================================
"
" call plug#begin(has('nvim') ? stdpath('data').'/plugged' : '~/.vim/plugged')
"   Plug 'tpope/vim-sensible'
"   Plug 'tpope/vim-commentary'        " gcc / gc in visual
"   Plug 'tpope/vim-surround'          " cs'\" etc.
"   Plug 'tpope/vim-fugitive'          " :Git ...
"   Plug 'airblade/vim-gitgutter'
"   Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
"   Plug 'junegunn/fzf.vim'            " :Files :Rg :Buffers
"   Plug 'itchyny/lightline.vim'
"   Plug 'morhetz/gruvbox'
"
"   " Language support
"   Plug 'vim-ruby/vim-ruby'
"   Plug 'Vimjas/vim-python-pep8-indent'
"   Plug 'JuliaEditorSupport/julia-vim'
"   Plug 'pangloss/vim-javascript'
"   Plug 'HerringtonDarkholme/yats.vim' " TypeScript
" call plug#end()
"
" nnoremap <leader>ff :Files<CR>
" nnoremap <leader>fg :Rg<CR>
" nnoremap <leader>fb :Buffers<CR>
" silent! colorscheme gruvbox