Taiga to Trello - ruby script to import Taiga cards into Trello

trello-import.rb

require 'trello'

# Trello.open_public_key_url                         # copy your public key
# Trello.open_authorization_url key: 'yourpublickey' # copy your member token

Trello.configure do |config|
  config.developer_public_key = 'your_public_key' # The "key" from step 1
  config.member_token = 'your_member_token'       # The token from step 3.
end

# Locate your board_id to import cards into.
# Trello::Board.all.reject(&:closed?).map {|a| [a.id, a.name]}
board_id = 'XXXXX'

# get some list ids - in this case a Kanban board:
# Trello::Board.find(board_id).lists.map {|a| [a.id, a.name]}
def backlog_id; 'XXX'; end
def testing_id; 'XXX'; end
def done_id; 'XXX'; end

# Import JSON cards from Taiga. 
# Asumes you have exported cards from Taiga into a file named taiga_cards.json located in the same folder as this script.
file = File.read('./taiga_cards.json')
data_hash = JSON.parse(file)
cards = data_hash['user_stories']

# adjust attributes to import at will
valid_keys = %w(tags status role_points subject description attachments)

label_names = cards.map{ |card| card['tags'] }.map{ |tag| JSON.parse(tag) }.flatten.compact.uniq
label_names.each do |label_name|
  Trello::Label.create(name: label_name, board_id: board_id, color: Trello::Label.label_colours.sample)
end
trello_labels = Trello::Board.find(board_id).labels.map { |label| [label.id, label.name] }

cards.each do |card|
  card_attributes = card.slice(*valid_keys)

  list_id     = list_id_for_status card_attributes['status']
  tags        = JSON.parse(card_attributes['tags'])
  labels_list = tags.map{|tag| label_for_name(tag, trello_labels)}.join(',')

  Trello::Card.create(
    name: card_attributes['subject'],
    list_id: list_id,
    desc: card_attributes['description'],
    card_labels: labels_list
  )
end

def list_id_for_status(status)
  case status
  when 'Done'
    done_id
  when 'Ready for test'
    testing_id
  else
    backlog_id
  end
end

def label_for_name(name, labels)
  labels.detect{|label| label[1] == name}[0]
end