A rough Crouton (https://crouton.app) to Mela (https://mela.recipes) recipe converter. The imported recipes may require some clean-up…

crouton-to-mela.rb

#!/usr/bin/env ruby

require "bundler/inline"

gemfile do
  source "https://rubygems.org"

  gem "tty-logger", "~> 0.6"
  gem "pry"
  gem "dotiw"
end

require "json"
require "uri"

include DOTIW::Methods

logger = TTY::Logger.new

crumbs = Dir.glob("./crouton/*.crumb")

crumbs.each do |file|
  logger.info "Processing #{file}"

  crumb = JSON.parse(File.read(file))

  uri = URI.parse(crumb["webLink"])
  totalTime = crumb["duration"].to_i + crumb["cookingDuration"].to_i
  mela = {
    id: "#{uri.host}#{uri.path.gsub(/\/\z/, "")}",
    title: crumb["name"],
    categories: [],
    nutrition: "",
    favorite: false,
    link: crumb["webLink"],
    prepTime: crumb["duration"].to_i > 0 ? distance_of_time(crumb["duration"]*60) : "",
    totalTime: totalTime > 0 ?  distance_of_time(totalTime*60) : "",
    date: Time.now.to_i - 978307200,
    images: crumb["images"],
    wantToCook: false,
    ingredients: crumb["ingredients"].map { |ingredient|
      amount = ingredient.dig("quantity", "amount")
      unit = case ingredient.dig("quantity", "quantityType")&.downcase
             when "grams"
              "g"
             when "kgs"
              "kg"
             when "litres"
              "l"
             when "mills"
              "ml"
             when "teaspoon"
              "tsp"
             when "tablespoon"
              "tbsp"
             when "cup"
              "cups"
             when "pound"
              "lb"
             when "ounce"
              "oz"
             when "pinches"
              "pinch"
             when "section"
              "#"
             when nil, "item"
              nil
             else
               raise "Unknown unit: #{ingredient.dig("quantity", "quantityType").inspect}"
             end
      name = ingredient.dig("ingredient", "name").downcase
      amount_and_unit = if %w(g kg ml l lb oz).include?(unit)
        [amount, unit].compact.join
      elsif amount.nil? && unit.nil?
        nil
      else
        [amount, unit].compact.join(" ")
      end
      [amount_and_unit, name].compact.join(" ")
    }.join("\n"),
    text: "",
    instructions: crumb["steps"].map { |step| step["step"] }.join("\n"),
    notes: crumb["notes"]
  }

  File.write("./mela/#{File.basename(file, ".*")}.melarecipe", JSON.pretty_generate(mela))
end

# Mela format:
#
# {
#   "id": "rasamalaysia.com/asian-cucumber-salad",
#   "categories": [],
#   "nutrition": "**Serving size** 2 people\n**Calories** 95 calories\n**Fat** 3.9 grams fat\n**Saturated fat** 0.6 grams saturated fat\n**Sodium** 889 grams sodium\n**Carbohydrates** 16.2 grams carbohydrates\n**Fiber** 1.3 grams fiber\n**Sugar** 11.6 grams sugar\n**Protein** 1.3 grams protein",
#   "favorite": false,
#   "link": "https://rasamalaysia.com/asian-cucumber-salad/",
#   "totalTime": "20min",
#   "title": "Asian Cucumber Salad",
#   "notes": "",
#   "date": 651490594.572202,
#   "ingredients": "1 cucumber (about 225 g)\n3/4 teaspoon salt or to taste\n2 cloves garlic, minced\n1 teaspoon apple cider vinegar\n1 1/2 tablespoons sugar\n1 teaspoon Korean chili powder or regular chili powder\n1 teaspoon chili oil\n1/2 teaspoon sesame oil\nsesame seeds for garnishing",
#   "text": "Asian Cucumber Salad – healthy cucumber salad with Asian spices. So refreshing and easy. A perfect appetizer for any meals!",
#   "prepTime": "5min",
#   "images": ["base64 images""],
#   "wantToCook": false,
#   "instructions": "Rinse the cucumber thoroughly and slice it into pieces. Add the salt to the cucumber, stir gently to combine well. Chill in the refrigerator for 15 minutes.\nCombine the garlic, vinegar, sugar, chili powder, chili oil, and sesame oil together, stir to mix well. Make sure that the sugar is completely dissolved.\nDrain the salt water from the cucumber. Add the dressing to the cucumber, toss well. Top with sesame seeds and serve immediately."
# }

# Crouton format:
#
# {
#   "serves": 2,
#   "folderIDs": [],
#   "ingredients": [
#     {
#       "quantity": {
#         "amount": 225,
#         "quantityType": "GRAMS"
#       },
#       "ingredient": {
#         "name": "Cucumber",
#         "uuid": "9B4B7DF5-64E6-4171-88E0-1C29A938D253"
#       },
#       "order": 0,
#       "uuid": "A3914182-15E4-4D09-AE37-A2DAA10E534B"
#     },
#     {
#       "quantity": {
#         "amount": 1,
#         "quantityType": "TEASPOON"
#       },
#       "ingredient": {
#         "name": "Chili oil",
#         "uuid": "0C216EAD-A361-40F8-BC3C-4D6B21ED2265"
#       },
#       "order": 1,
#       "uuid": "CC6EE54E-2DB0-4A03-819A-B2BE815B430C"
#     },
#     {
#       "quantity": {
#         "amount": 2,
#         "quantityType": "ITEM"
#       },
#       "ingredient": {
#         "name": "Cloves garlic, minced",
#         "uuid": "2748943A-7E97-4538-988E-80D77388D146"
#       },
#       "order": 2,
#       "uuid": "74755E17-DA10-4CCC-A3DB-53186063540F"
#     }
#   ],
#   "webLink": "https://rasamalaysia.com/asian-cucumber-salad/",
#   "steps": [
#     {
#       "step": "Rinse the cucumber thoroughly and slice it into pieces. Add the salt to the cucumber, stir gently to combine well. Chill in the refrigerator for 15 minutes.",
#       "order": 0,
#       "uuid": "22923C03-9CEB-415E-BF1B-C101A384623A"
#     },
#     {
#       "step": "Combine the garlic, vinegar, sugar, chili powder, chili oil, and sesame oil together, stir to mix well. Make sure that the sugar is completely dissolved.",
#       "order": 1,
#       "uuid": "BE6CE7E5-DD74-4852-9CB8-293D55CE9400"
#     },
#     {
#       "step": "Drain the salt water from the cucumber. Add the dressing to the cucumber, toss well. Top with sesame seeds and serve immediately.",
#       "order": 2,
#       "uuid": "FE7BEC18-761B-425F-9622-4392DD7A674B"
#     }
#   ],
#   "images": [
#     "base64 images"
#   ],
#   "uuid": "F5A15C33-A664-4E5C-BD24-93803AD37EE7",
#   "duration": 5,
#   "cookingDuration": 15,
#   "name": "Asian Cucumber Salad"
# }

Hi, I updated your gist to add a few more unit types, and to generate a hash of the name of the recipe if the webLink attribute is missing.

I'm not sure about the latter... Does Mela require that the IDs be unique? If so, two recipes with the same name would fail this requirement. I could generate a random string instead, but then multiple runs on the same recipe would generate duplicates.

Anyway, feel free to merge my changes back into your gist... I'd rather your code be the source of truth. I'll delete mine after you merge. https://gist.github.com/coppit/e00930ced11bb861e09503ab4e26c06b

Thanks for writing this!

Does Mela require that the IDs be unique?

I don't remember the details, it's been a long time since I switched to Mela and I only worked on the script up to the point where it worked for me 😅

@matiaskorhonen Thanks for sharing. If you don't mind sharing, why did you end up switching?