For opening links from better_error and RailsPanel in vim on Ubuntu

open_txmt_link_in_vim.desktop

[Desktop Entry]
Encoding=UTF-8
Name=Vim (Console)
Comment=Edit text files in a console using Vim
Exec=/usr/local/bin/open_txmt_link_in_vim %U
Terminal=false
Type=Application
Icon=/usr/src/vim/runtime/vim48x48.xpm
Categories=Application;Utility;TextEditor;
MimeType=text/plain;x-scheme-handler/vim;x-scheme-handler/txmt;
StartupNotify=true
StartupWMClass=open_txmt_link_in_vim

open_txmt_link_in_vim.rb

#! /usr/bin/env ruby

#/usr/local/bin/open_txmt_link_in_vim
# Handler for the 'txmt:' schema that opens these links in console vim.

require 'uri'
require 'cgi'

# Create a log file. Useful for debugging (to know what args this command was called with) since
# this is executed non-interactively by xdg-open:
require 'pathname'
dir = Pathname("#{ENV['HOME']}/tmp").tap {|dir| dir.mkpath }
log = (dir + "#{File.basename($0)}.log").open('a')
log.puts '='*100
log.puts Time.now
log.puts ARGV

begin
  exit unless ARGV[0]
  uri = URI.parse(ARGV[0])
  log.puts %(uri=#{(uri).inspect})

  exit unless uri.host == 'open'
  exit unless uri.query

  command = 'gnome-terminal -x vim --servername vim --remote-tab-silent'
  
  params = CGI.parse(uri.query)
  log.puts %(params=#{(params).inspect})

  if params['line']
    line = params['line'][0]
    command << " +#{line}"
  end

  exit unless params['url']
  log.puts %(params['url'][0]=#{(params['url'][0]).inspect})
  url_param = URI.parse(params['url'][0])
  log.puts %(url_param=#{(url_param).inspect})
  exit unless url_param.scheme == 'file'

  command << %Q[ "#{url_param.path}"]
  log.puts %(command=#{command})
  log.puts `#{command}`

rescue Exception
  log.puts $!.inspect
  log.puts $!.backtrace
end