A story about how I switched from Rubymine to VIM
In times of great and powerful IDE’s - VIM looks poor. It’s a fact - my default VIM offered only 8 colours. Magic is hidden - we only need to turn it on!
Everything because of RAM
I can’t say bad word about RubyMine. It’s great, probably the best IDE for Ruby developers. However, it has a disadvantage (for me) - it consumes quite a lot of memory. When I ran the RM and docker containers - my RAM memory was filling up quickly, which made my computer slower. The second reason for my decision was, that I was using only a few RubyMine features. In my opinion, there is no point in keeping this powerful tool just for these features, so I started thinking about VIM.
RM helped at the first stage
I started from VIM tutor - there are some built-in lessons about VIM. You can enter ‘vimtutor’ in the terminal and check:
So, I got to know the basic functions of VIM, but it was still not enough to use it at work. It was time for IdeaVim plugin. This plugin emulates VIM in Rubymine, so thanks to that I have RubyMine environment and VIM inside it. Sounds great? I think it is the best way to learn VIM. For people using Atom or Sublime - you can also install such plugins for them.
Standard VIM is, as I said before, poor - it looks cheap. But we can change it with VimAwesome. See what my VIM looks like:
Try to tune your VIM like I did. First of all, you have to install Pathogen:
mkdir -p ~/.vim/autoload ~/.vim/bundle && \ curl -LSso ~/.vim/autoload/pathogen.vim https://tpo.pe/pathogen.vim
Thanks to that you will be able to install new plugins.
I chose several plugins that replace the main RubyMine features:
It creates a files tree. Really useful. Install with:
cd ~/.vim/bundle git clone https://github.com/scrooloose/nerdtree
and edit your vim config file to add shortcut and basic configuration:
map <C-o> :NERDTreeToggle<CR> autocmd vimenter * NERDTree autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
After that reset your VIM and voila! You can swith between windows using CTRL+W and show/hide tree usign CTRL+O. An interesting feature is opening the file using the ‘i’ button on the split screen or just ‘t’ for open file in new tab (and swith tabs with ‘gt’/’gT’) You can press ‘?’ for help as well.
Gruvbox - color scheme
cd ~/.vim/bundle git clone https://github.com/morhetz/gruvbox
and in the vimrc:
colorscheme gruvbox set background=dark
Your terminal can have problem with 256 colours :) For example my iTerm2 support only 8 colours by default.
I added this to vimrc:
Then I installed new theme for iTerm and added these lines to bash_profile:
export TERM=xterm-256color export CLICOLOR=1
It’s better now, don’t you think?
Vim-ruby provides Ruby syntax support for vim.
cd ~/.vim/bundle git clone https://github.com/vim-ruby/vim-ruby
and make sure that these lines are at your vimrc:
set nocompatible syntax on filetype on filetype indent plugin on
This hot plugin make that you can move to method definition with ‘\’+’d’ It is really useful and a lot of Rubist use RubyMine mainly because of this feature.
cd ~/.vim/bundle git clone https://github.com/misterbuckley/vim-definitive
and add new shortcut to vimrc (you can of course set own shourtcut):
nnoremap <Leader>d :FindDefinition<CR>
You will also need the ability to quickly navigate through the files from the project. The advantage of command-t is that it was written in C, thanks to it works quite fast!
cd ~/.vim/bundle git clone https://github.com/wincent/command-t
It searches by first letters of filenames, so it’s extreme easy and fast! For example ‘cus or sh’ will find ‘app/views/customer_panel/orders/show.haml’ - great!
Search text in files. It was written in Perl, so it’s also quite fast.
cd ~/.vim/bundle git clone https://github.com/mileszs/ack.vim
And becouse of Ack is an external app - you must also install it. For MacOS:
brew install ack
After installation, you can simply use :Ack to find the text, for example:
:Ack vimawesomepost app/
It’s useful, when you use Rubocop Guard. If the guard corrects your code, this plugin will reload the updated file.
cd ~/.vim/bundle git clone https://github.com/djoshea/vim-autoread
In RubyMine, it was easy to see the history of a given file. I used it especially when I was working with projects, where I didn’t work on some part of code alone. Thanks to this plugin we can quickly see the result of, for example - git blame or diff of the current file:
cd ~/.vim/bundle git clone https://github.com/tpope/vim-fugitive.git vim -u NONE -c "helptags vim-fugitive/doc" -c q
Is another tool to git support. It adds +/- to the new/deleted code.
cd ~/.vim/bundle git clone git://github.com/airblade/vim-gitgutter.git
Must have plugin which provides a history tree for file.
cd ~/.vim/bundle git clone https://github.com/mbbill/undotree
It’s a good idea to add a keyboard shortcut to activate it. I use Leader key \ + h (like history). Vimrc file:
nnoremap <Leader>h :UndotreeToggle<CR>
If you use GIT, you should protect your repo from adding VIM temporary files:
# VIM swap files [._]*.sw[a-p] [._]sw[a-p]
WOW. Is this end?
It will probably take some time until I finally configure my VIM. I’m still discovering new problems, for example, in VIM we have 2 clipboards - from system and vim. And when we have 2 instances of VIM - we must use system clipboard to exchange data between them. And the problem is that when we select with mouse some text and press CTRL+C - we copy not only text but also a lines numbers!
What surprised me, we can use the `:!pbcopy’ command to copy text selected in visual mode, but this also deletes this text, so we have to press ‘U’ after that. Crazy!
But one solved problem is one problem less, we must remember about it!
If you want to use my config, run this in your terminal:
mkdir -p ~/.vim/autoload ~/.vim/bundle && \ curl -LSso ~/.vim/autoload/pathogen.vim https://tpo.pe/pathogen.vim cd ~/.vim/bundle git clone https://github.com/scrooloose/nerdtree git clone https://github.com/morhetz/gruvbox git clone https://github.com/vim-ruby/vim-ruby git clone https://github.com/misterbuckley/vim-definitive git clone https://github.com/wincent/command-t git clone https://github.com/mileszs/ack.vim git clone https://github.com/djoshea/vim-autoread git clone git://github.com/airblade/vim-gitgutter.git git clone https://github.com/mbbill/undotree git clone https://github.com/tpope/vim-fugitive.git vim -u NONE -c "helptags vim-fugitive/doc" -c q
and put this to your vimrc:
set nocompatible " Pathogen call pathogen#infect() call pathogen#helptags() set number " windows resize nnoremap <leader>1 :vertical resize +10<cr> nnoremap <leader>2 :vertical resize -10<cr> nnoremap <leader>3 :resize +10<cr> nnoremap <leader>4 :resize -10<cr> " switching windows map ; <C-W>k map ' <C-W>w " only search case sensitive if you include case set incsearch set ignorecase smartcase " Vim-ruby config: let ruby_operators = 1 let ruby_spellcheck_strings = 1 filetype plugin indent on syntax on runtime! config/**/*.vim " Shift + enter => adds 'end' imap <S-CR> <CR><CR>end<Esc>-cc " iTerm2 fix: preferences → profile → keys → add more key + → press Shift Enter in field Keyboard Shortcut → Action: Send Text with “vim” Special Char → Copy \n\nend\x1B-cc " Nerd-tree config: autocmd vimenter * NERDTree map <C-o> :NERDTreeToggle<CR> autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif " Scheme config: set background=dark let base16colorspace=256 colorscheme gruvbox " Find definition config: nnoremap <Leader>d :FindDefinition<CR> " UndoTree config nnoremap <Leader>h :UndotreeToggle<CR>