tv: cherry-pick vim from hotwip!

tv/2configs/vim.nix

@@ -0,0 +1,96 @@
+{ lib, pkgs, ... }:
+
+with lib;
+let
+  out = {
+    environment.systemPackages = [
+      vim'
+    ];
+
+    environment.variables.EDITOR = mkForce "vim";
+  };
+
+  runtimepath = concatStringsSep "," [
+    "$HOME/.vim" # TODO get rid if this and incorporate everything from wu:~tv/.vim
+    "${pkgs.vimPlugins.undotree}/share/vim-plugins/undotree"
+    #"${tv-vim}/share/vim"
+  ];
+
+  vim' = pkgs.writeScriptBin "vim" ''
+    #! /bin/sh
+    set -eu
+    mkdir -p "$HOME"/.vim/backup
+    mkdir -p "$HOME"/.vim/cache
+    mkdir -p "$HOME"/.vim/undo
+    exec ${pkgs.vim}/bin/vim -u ${vimrc} "$@"
+  '';
+
+  vimrc = pkgs.writeText "vimrc" ''
+    set nocompatible
+
+    set autoindent
+    set backspace=indent,eol,start
+    set backup
+    set backupdir=$HOME/.vim/backup/
+    set directory=$HOME/.vim/cache//
+    set hlsearch
+    set incsearch
+    set mouse=a
+    set pastetoggle=<INS>
+    set runtimepath=${runtimepath}
+    set shortmess+=I
+    set showcmd
+    set showmatch
+    set ttimeoutlen=0
+    set undodir=$HOME/.vim/undo
+    set undofile
+    set undolevels=1000000
+    set undoreload=1000000
+    set viminfo='20,<1000,s100,h,n$HOME/.vim/cache/info
+    set visualbell
+    set wildignore+=*.o,*.class,*.hi,*.dyn_hi,*.dyn_o
+    set wildmenu
+    set wildmode=longest,full
+
+    filetype plugin indent on
+
+    "colorscheme industry # TODO
+    syntax on
+
+    cmap w!! w!sudo tee % >/dev/null
+
+    nmap <esc>q :buffer
+    nmap <M-q> :buffer
+
+    cnoremap <C-A> <Home>
+
+    noremap  <C-c> :q<cr>
+
+    nnoremap <esc>[5^  :tabp<cr>
+    nnoremap <esc>[6^  :tabn<cr>
+    nnoremap <esc>[5@  :tabm -1<cr>
+    nnoremap <esc>[6@  :tabm +1<cr>
+
+    nnoremap <f1> :tabp<cr>
+    nnoremap <f2> :tabn<cr>
+    inoremap <f1> <esc>:tabp<cr>
+    inoremap <f2> <esc>:tabn<cr>
+
+    " <C-{Up,Down,Right,Left>
+    noremap <esc>Oa <nop> | noremap! <esc>Oa <nop>
+    noremap <esc>Ob <nop> | noremap! <esc>Ob <nop>
+    noremap <esc>Oc <nop> | noremap! <esc>Oc <nop>
+    noremap <esc>Od <nop> | noremap! <esc>Od <nop>
+    " <[C]S-{Up,Down,Right,Left>
+    noremap <esc>[a <nop> | noremap! <esc>[a <nop>
+    noremap <esc>[b <nop> | noremap! <esc>[b <nop>
+    noremap <esc>[c <nop> | noremap! <esc>[c <nop>
+    noremap <esc>[d <nop> | noremap! <esc>[d <nop>
+    vnoremap u <nop>
+  '';
+
+  # "7.4.335" -> "74"
+  #majmin = x: concatStrings (take 2 (splitString "." x));
+in
+out
+#https://github.com/mbbill/undotree