Method: Vagrant::Action::Builtin::MixinSyncedFolders#synced_folders_diff

Defined in:
lib/vagrant/action/builtin/mixin_synced_folders.rb

#synced_folders_diff(one, two) ⇒ hash

This finds the difference between two lists of synced folder definitions.

This will return a hash with three keys: "added", "removed", and "modified". These will contain a set of IDs of folders that were added, removed, or modified, respectively.

The parameters should be results from the #synced_folders call.

Returns:

  • (hash) 


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# File 'lib/vagrant/action/builtin/mixin_synced_folders.rb', line 207

def synced_folders_diff(one, two)
  existing_ids = {}
  one.each do |impl, fs|
    fs.each do |id, data|
      existing_ids[id] = data
    end
  end

  result = Hash.new { |h, k| h[k] = Set.new }
  two.each do |impl, fs|
    fs.each do |id, data|
      existing = existing_ids.delete(id)
      if !existing
        result[:added] << id
        next
      end

      # Exists, so we have to compare the host and guestpath, which
      # is most important...
      if existing[:hostpath] != data[:hostpath] ||
        existing[:guestpath] != data[:guestpath]
        result[:modified] << id
      end
    end
  end

  existing_ids.each do |k, _|
    result[:removed] << k
  end

  result
end