A small app to open special "viminiterm://" urls in a new iTerm tab in vim.

Better Errors is a RubyGem that provides, well, better errors in Rails applications during development. One feature it provides is the ability to open the files, at the offending line, in the stacktrace in your editor of choice. It does this by creating links to specially crafted URLs using custom schemes (ie. "txmt", "subl", "mvim"). I prefer to use standard CLI vim in iTerm.

To make this work, I've written a small AppleScript based application that registers a URLSchemes of "viminiterm", then activates iTerm, opens a new default session, and starts vim loading the file and line. Note that the application execs vim in the shell so once you quit vim, that iTerm session will close.

1. Download the ZIP and unzip it.
2. Copy the 'Vim in Iterm' application to your Applications folder.
3. Double click it to open it. The application needs to be run normally, just once, in order to register the URLScheme with the OS.
4. You can click here to trigger the registration or manually insert the following snippet into the browser: viminiterm://open?url=file:///etc/bashrc&line=3

Create 'config/initializers/better_errors.rb' with the following contents and restart your Rails application.

if defined? BetterErrors
    BetterErrors.editor = proc { |file, line| "viminiterm://open?url=file://#{file}&line=#{line}" }
end

An error is raised in the Rails application. Clicking the filename will open the 'viminiterm://' link.

The first time this happens your browser may prompt you to confirm you want to do it. Set your preferences and continue.

The application runs, and a new iTerm session is opened, opening vim with that file and line.