A script to convert Bashmarks .sdirs file to Fish's Jump plugin symlinks

linkmarks.rb

#!/usr/bin/env ruby
# A script to convert Bashmarks .sdirs file to Fish's Jump plugin symlinks

sdirs_file = File.expand_path('~/.sdirs')
unless File.exists?(sdirs_file)
  $stderr.puts 'Bookmarks file not found (~/.sdirs). Is Bashmarks initialized?'
  Process.exit 1
end

marks = File.expand_path('~/.marks')
unless File.directory?(marks)
  $stderr.puts 'It appears the Fish "jump" plugin hasn\'t been initialized.'
  Process.exit 1
end

IO.read(sdirs_file).split(/\n/).each {|line|
  m = line.match(/export DIR_(\S+?)="(.*?)"/)
  mark_target = File.join(marks,m[1])
  mark_path = m[2].sub(/^\$HOME\//,'~/')
  unless File.exists?(mark_target)
    cmd = %Q{ln -s "#{mark_path}" #{mark_target}}
    system cmd
  end
}