# frozen_string_literal: true

require “active_record” require “active_support/configuration_file” require “active_support/deprecation”

databases = ActiveRecord::Tasks::DatabaseTasks.setup_initial_database_yaml

db_namespace = namespace :db do

desc "Set the environment value for the database"
task "environment:set" => :load_config do
  connection = ActiveRecord::Tasks::DatabaseTasks.migration_connection
  raise ActiveRecord::EnvironmentStorageError unless connection.internal_metadata.enabled?

  connection.internal_metadata.create_table_and_set_flags(connection.migration_context.current_environment)
end

task check_protected_environments: :load_config do
  ActiveRecord::Tasks::DatabaseTasks.check_protected_environments!
end

task load_config: :environment do
  if ActiveRecord::Base.configurations.empty?
    ActiveRecord::Base.configurations = ActiveRecord::Tasks::DatabaseTasks.database_configuration
  end

  ActiveRecord::Migrator.migrations_paths = ActiveRecord::Tasks::DatabaseTasks.migrations_paths
end

namespace :create do
  task all: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.create_all
  end

  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Create #{name} database for current environment"
    task name => :load_config do
      db_config = ActiveRecord::Base.configurations.configs_for(env_name: Rails.env, name: name)
      ActiveRecord::Tasks::DatabaseTasks.create(db_config)
    end
  end
end

desc "Create the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:create:all to create all databases in the config). Without RAILS_ENV or when RAILS_ENV is development, it defaults to creating the development and test databases, except when DATABASE_URL is present."
task create: [:load_config] do
  ActiveRecord::Tasks::DatabaseTasks.create_current
end

namespace :drop do
  task all: [:load_config, :check_protected_environments] do
    ActiveRecord::Tasks::DatabaseTasks.drop_all
  end

  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Drop #{name} database for current environment"
    task name => [:load_config, :check_protected_environments] do
      db_config = ActiveRecord::Base.configurations.configs_for(env_name: Rails.env, name: name)
      ActiveRecord::Tasks::DatabaseTasks.drop(db_config)
    end
  end
end

desc "Drop the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:drop:all to drop all databases in the config). Without RAILS_ENV or when RAILS_ENV is development, it defaults to dropping the development and test databases, except when DATABASE_URL is present."
task drop: [:load_config, :check_protected_environments] do
  db_namespace["drop:_unsafe"].invoke
end

task "drop:_unsafe" => [:load_config] do
  ActiveRecord::Tasks::DatabaseTasks.drop_current
end

namespace :purge do
  task all: [:load_config, :check_protected_environments] do
    ActiveRecord::Tasks::DatabaseTasks.purge_all
  end
end

# desc "Truncates tables of each database for current environment"
task truncate_all: [:load_config, :check_protected_environments] do
  ActiveRecord::Tasks::DatabaseTasks.truncate_all
end

# desc "Empty the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:purge:all to purge all databases in the config). Without RAILS_ENV it defaults to purging the development and test databases, except when DATABASE_URL is present."
task purge: [:load_config, :check_protected_environments] do
  ActiveRecord::Tasks::DatabaseTasks.purge_current
end

desc "Migrate the database (options: VERSION=x, VERBOSE=false, SCOPE=blog)."
task migrate: :load_config do
  db_configs = ActiveRecord::Base.configurations.configs_for(env_name: ActiveRecord::Tasks::DatabaseTasks.env)

  if db_configs.size == 1 && db_configs.first.primary?
    ActiveRecord::Tasks::DatabaseTasks.migrate
  else
    mapped_versions = ActiveRecord::Tasks::DatabaseTasks.db_configs_with_versions

    mapped_versions.sort.each do |version, db_configs|
      db_configs.each do |db_config|
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection(db_config) do
          ActiveRecord::Tasks::DatabaseTasks.migrate(version)
        end
      end
    end
  end

  db_namespace["_dump"].invoke
end

# IMPORTANT: This task won't dump the schema if ActiveRecord.dump_schema_after_migration is set to false
task :_dump do
  if ActiveRecord.dump_schema_after_migration
    db_namespace["schema:dump"].invoke
  end
  # Allow this task to be called as many times as required. An example is the
  # migrate:redo task, which calls other two internally that depend on this one.
  db_namespace["_dump"].reenable
end

namespace :_dump do
  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    # IMPORTANT: This task won't dump the schema if ActiveRecord.dump_schema_after_migration is set to false
    task name do
      if ActiveRecord.dump_schema_after_migration
        db_namespace["schema:dump:#{name}"].invoke
      end

      # Allow this task to be called as many times as required. An example is the
      # migrate:redo task, which calls other two internally that depend on this one.
      db_namespace["_dump:#{name}"].reenable
    end
  end
end

namespace :migrate do
  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Migrate #{name} database for current environment"
    task name => :load_config do
      ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do |conn|
        ActiveRecord::Tasks::DatabaseTasks.migrate
      end

      db_namespace["_dump:#{name}"].invoke
    end
  end

  desc "Roll back the database one migration and re-migrate up (options: STEP=x, VERSION=x)."
  task redo: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.raise_for_multi_db(command: "db:migrate:redo")

    raise "Empty VERSION provided" if ENV["VERSION"] && ENV["VERSION"].empty?

    if ENV["VERSION"]
      db_namespace["migrate:down"].invoke
      db_namespace["migrate:up"].invoke
    else
      db_namespace["rollback"].invoke
      db_namespace["migrate"].invoke
    end
  end

  namespace :redo do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Roll back #{name} database one migration and re-migrate up (options: STEP=x, VERSION=x)."
      task name => :load_config do
        raise "Empty VERSION provided" if ENV["VERSION"] && ENV["VERSION"].empty?

        if ENV["VERSION"]
          db_namespace["migrate:down:#{name}"].invoke
          db_namespace["migrate:up:#{name}"].invoke
        else
          db_namespace["rollback:#{name}"].invoke
          db_namespace["migrate:#{name}"].invoke
        end
      end
    end
  end

  # desc 'Resets your database using your migrations for the current environment'
  task reset: ["db:drop", "db:create", "db:migrate"]

  desc 'Run the "up" for a given migration VERSION.'
  task up: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.raise_for_multi_db(command: "db:migrate:up")

    raise "VERSION is required" if !ENV["VERSION"] || ENV["VERSION"].empty?

    ActiveRecord::Tasks::DatabaseTasks.check_target_version

    ActiveRecord::Tasks::DatabaseTasks.migration_connection.migration_context.run(
      :up,
      ActiveRecord::Tasks::DatabaseTasks.target_version
    )
    db_namespace["_dump"].invoke
  end

  namespace :up do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Run the \"up\" on #{name} database for a given migration VERSION."
      task name => :load_config do
        raise "VERSION is required" if !ENV["VERSION"] || ENV["VERSION"].empty?

        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do |conn|
          ActiveRecord::Tasks::DatabaseTasks.check_target_version
          conn.migration_context.run(:up, ActiveRecord::Tasks::DatabaseTasks.target_version)
        end

        db_namespace["_dump:#{name}"].invoke
      end
    end
  end

  desc 'Run the "down" for a given migration VERSION.'
  task down: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.raise_for_multi_db(command: "db:migrate:down")

    raise "VERSION is required - To go down one migration, use db:rollback" if !ENV["VERSION"] || ENV["VERSION"].empty?

    ActiveRecord::Tasks::DatabaseTasks.check_target_version

    ActiveRecord::Tasks::DatabaseTasks.migration_connection.migration_context.run(
      :down,
      ActiveRecord::Tasks::DatabaseTasks.target_version
    )
    db_namespace["_dump"].invoke
  end

  namespace :down do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Run the \"down\" on #{name} database for a given migration VERSION."
      task name => :load_config do
        raise "VERSION is required" if !ENV["VERSION"] || ENV["VERSION"].empty?

        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do |conn|
          ActiveRecord::Tasks::DatabaseTasks.check_target_version
          conn.migration_context.run(:down, ActiveRecord::Tasks::DatabaseTasks.target_version)
        end

        db_namespace["_dump:#{name}"].invoke
      end
    end
  end

  desc "Display status of migrations"
  task status: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each do
      ActiveRecord::Tasks::DatabaseTasks.migrate_status
    end
  end

  namespace :status do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Display status of migrations for #{name} database"
      task name => :load_config do
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do
          ActiveRecord::Tasks::DatabaseTasks.migrate_status
        end
      end
    end
  end
end

namespace :rollback do
  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Rollback #{name} database for current environment (specify steps w/ STEP=n)."
    task name => :load_config do
      step = ENV["STEP"] ? ENV["STEP"].to_i : 1

      ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do |conn|
        conn.migration_context.rollback(step)
      end

      db_namespace["_dump:#{name}"].invoke
    end
  end
end

desc "Roll the schema back to the previous version (specify steps w/ STEP=n)."
task rollback: :load_config do
  ActiveRecord::Tasks::DatabaseTasks.raise_for_multi_db(command: "db:rollback")
  raise "VERSION is not supported - To rollback a specific version, use db:migrate:down" if ENV["VERSION"]

  step = ENV["STEP"] ? ENV["STEP"].to_i : 1

  ActiveRecord::Tasks::DatabaseTasks.migration_connection.migration_context.rollback(step)

  db_namespace["_dump"].invoke
end

# desc 'Pushes the schema to the next version (specify steps w/ STEP=n).'
task forward: :load_config do
  step = ENV["STEP"] ? ENV["STEP"].to_i : 1

  ActiveRecord::Tasks::DatabaseTasks.migration_connection.migration_context.forward(step)

  db_namespace["_dump"].invoke
end

namespace :reset do
  task all: ["db:drop", "db:setup"]

  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Drop and recreate the #{name} database from its schema for the current environment and load the seeds."
    task name => ["db:drop:#{name}", "db:setup:#{name}"]
  end
end

desc "Drop and recreate all databases from their schema for the current environment and load the seeds."
task reset: [ "db:drop", "db:setup" ]

# desc "Retrieve the charset for the current environment's database"
task charset: :load_config do
  puts ActiveRecord::Tasks::DatabaseTasks.charset_current
end

# desc "Retrieve the collation for the current environment's database"
task collation: :load_config do
  puts ActiveRecord::Tasks::DatabaseTasks.collation_current
rescue NoMethodError
  $stderr.puts "Sorry, your database adapter is not supported yet. Feel free to submit a patch."
end

desc "Retrieve the current schema version number"
task version: :load_config do
  ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env) do |connection|
    puts "\ndatabase: #{connection.pool.db_config.database}\n"
    puts "Current version: #{connection.schema_version}"
    puts
  end
end

namespace :version do
  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Retrieve the current schema version number for #{name} database"
    task name => :load_config do
      db_config = ActiveRecord::Base.configurations.configs_for(env_name: Rails.env, name: name)
      ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection(db_config) do |connection|
        puts "Current version: #{connection.schema_version}"
      end
    end
  end
end

# desc "Raises an error if there are pending migrations"
task abort_if_pending_migrations: :load_config do
  pending_migrations = []

  ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each do |conn|
    pending_migrations << conn.migration_context.open.pending_migrations
  end

  pending_migrations = pending_migrations.flatten!

  if pending_migrations.any?
    puts "You have #{pending_migrations.size} pending #{pending_migrations.size > 1 ? 'migrations:' : 'migration:'}"

    pending_migrations.each do |pending_migration|
      puts "  %4d %s" % [pending_migration.version, pending_migration.name]
    end

    abort %{Run `bin/rails db:migrate` to update your database then try again.}
  end
end

namespace :abort_if_pending_migrations do
  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    # desc "Raise an error if there are pending migrations for #{name} database"
    task name => :load_config do
      ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: Rails.env, name: name) do |conn|
        pending_migrations = conn.migration_context.open.pending_migrations

        if pending_migrations.any?
          puts "You have #{pending_migrations.size} pending #{pending_migrations.size > 1 ? 'migrations:' : 'migration:'}"

          pending_migrations.each do |pending_migration|
            puts "  %4d %s" % [pending_migration.version, pending_migration.name]
          end

          abort %{Run `bin/rails db:migrate:#{name}` to update your database then try again.}
        end
      end
    end
  end
end

namespace :setup do
  task all: ["db:create", :environment, "db:schema:load", :seed]

  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    desc "Create the #{name} database, load the schema, and initialize with the seed data (use db:reset:#{name} to also drop the database first)"
    task name => ["db:create:#{name}", :environment, "db:schema:load:#{name}", "db:seed"]
  end
end

desc "Create all databases, load all schemas, and initialize with the seed data (use db:reset to also drop all databases first)"
task setup: ["db:create", :environment, "db:schema:load", :seed]

desc "Run setup if database does not exist, or run migrations if it does"
task prepare: :load_config do
  ActiveRecord::Tasks::DatabaseTasks.prepare_all
end

desc "Load the seed data from db/seeds.rb"
task seed: :load_config do
  db_namespace["abort_if_pending_migrations"].invoke
  ActiveRecord::Tasks::DatabaseTasks.load_seed
end

namespace :seed do
  desc "Truncate tables of each database for current environment and load the seeds"
  task replant: [:load_config, :truncate_all, :seed]
end

namespace :fixtures do
  desc "Load fixtures into the current environment's database. To load specific fixtures, use FIXTURES=x,y. To load from subdirectory in test/fixtures, use FIXTURES_DIR=z. To specify an alternative path (e.g. spec/fixtures), use FIXTURES_PATH=spec/fixtures."
  task load: :load_config do
    require "active_record/fixtures"

    base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path

    fixtures_dir = if ENV["FIXTURES_DIR"]
      File.join base_dir, ENV["FIXTURES_DIR"]
    else
      base_dir
    end

    fixture_files = if ENV["FIXTURES"]
      ENV["FIXTURES"].split(",")
    else
      files = Dir[File.join(fixtures_dir, "**/*.{yml}")]
      files.reject! { |f| f.start_with?(File.join(fixtures_dir, "files")) }
      files.map! { |f| f[fixtures_dir.to_s.size..-5].delete_prefix("/") }
    end

    ActiveRecord::FixtureSet.create_fixtures(fixtures_dir, fixture_files)
  end

  # desc "Search for a fixture given a LABEL or ID. Specify an alternative path (e.g. spec/fixtures) using FIXTURES_PATH=spec/fixtures."
  task identify: :load_config do
    require "active_record/fixtures"

    label, id = ENV["LABEL"], ENV["ID"]
    raise "LABEL or ID required" if label.blank? && id.blank?

    puts %Q(The fixture ID for "#{label}" is #{ActiveRecord::FixtureSet.identify(label)}.) if label

    base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path

    Dir["#{base_dir}/**/*.yml"].each do |file|
      if data = ActiveSupport::ConfigurationFile.parse(file)
        data.each_key do |key|
          key_id = ActiveRecord::FixtureSet.identify(key)

          if key == label || key_id == id.to_i
            puts "#{file}: #{key} (#{key_id})"
          end
        end
      end
    end
  end
end

namespace :schema do
  desc "Create a database schema file (either db/schema.rb or db/structure.sql, depending on `ENV['SCHEMA_FORMAT']` or `config.active_record.schema_format`)"
  task dump: :load_config do
    ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each do |conn|
      db_config = conn.pool.db_config
      schema_format = ENV.fetch("SCHEMA_FORMAT", ActiveRecord.schema_format).to_sym
      ActiveRecord::Tasks::DatabaseTasks.dump_schema(db_config, schema_format)
    end

    db_namespace["schema:dump"].reenable
  end

  desc "Load a database schema file (either db/schema.rb or db/structure.sql, depending on `ENV['SCHEMA_FORMAT']` or `config.active_record.schema_format`) into the database"
  task load: [:load_config, :check_protected_environments] do
    ActiveRecord::Tasks::DatabaseTasks.load_schema_current(ActiveRecord.schema_format, ENV["SCHEMA"])
  end

  namespace :dump do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Create a database schema file (either db/schema.rb or db/structure.sql, depending on `ENV['SCHEMA_FORMAT']` or `config.active_record.schema_format`) for #{name} database"
      task name => :load_config do
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(name: name) do |conn|
          db_config = conn.pool.db_config
          schema_format = ENV.fetch("SCHEMA_FORMAT", ActiveRecord.schema_format).to_sym
          ActiveRecord::Tasks::DatabaseTasks.dump_schema(db_config, schema_format)
        end

        db_namespace["schema:dump:#{name}"].reenable
      end
    end
  end

  namespace :load do
    ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
      desc "Load a database schema file (either db/schema.rb or db/structure.sql, depending on `ENV['SCHEMA_FORMAT']` or `config.active_record.schema_format`) into the #{name} database"
      task name => "db:test:purge:#{name}" do
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(name: name) do |conn|
          db_config = conn.pool.db_config
          schema_format = ENV.fetch("SCHEMA_FORMAT", ActiveRecord.schema_format).to_sym
          ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config, schema_format)
        end
      end
    end
  end

  namespace :cache do
    desc "Create a db/schema_cache.yml file."
    task dump: :load_config do
      ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each do |conn|
        db_config = conn.pool.db_config
        filename = ActiveRecord::Tasks::DatabaseTasks.cache_dump_filename(db_config.name, schema_cache_path: db_config.schema_cache_path)

        ActiveRecord::Tasks::DatabaseTasks.dump_schema_cache(conn, filename)
      end
    end

    desc "Clear a db/schema_cache.yml file."
    task clear: :load_config do
      ActiveRecord::Base.configurations.configs_for(env_name: ActiveRecord::Tasks::DatabaseTasks.env).each do |db_config|
        filename = ActiveRecord::Tasks::DatabaseTasks.cache_dump_filename(
          db_config.name,
          schema_cache_path: db_config.schema_cache_path,
        )
        ActiveRecord::Tasks::DatabaseTasks.clear_schema_cache(
          filename,
        )
      end
    end
  end
end

namespace :encryption do
  desc "Generate a set of keys for configuring Active Record encryption in a given environment"
  task :init do
    puts <<~MSG
      Add this entry to the credentials of the target environment:#{' '}

      active_record_encryption:
        primary_key: #{SecureRandom.alphanumeric(32)}
        deterministic_key: #{SecureRandom.alphanumeric(32)}
        key_derivation_salt: #{SecureRandom.alphanumeric(32)}
    MSG
  end
end

namespace :test do
  # desc "Recreate the test database from an existent schema file (schema.rb or structure.sql, depending on `ENV['SCHEMA_FORMAT']` or `config.active_record.schema_format`)"
  task load_schema: %w(db:test:purge) do
    ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: "test") do |conn|
      db_config = conn.pool.db_config
      ActiveRecord::Schema.verbose = false
      schema_format = ENV.fetch("SCHEMA_FORMAT", ActiveRecord.schema_format).to_sym
      ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config, schema_format)
    end
  end

  # desc "Empty the test database"
  task purge: %w(load_config check_protected_environments) do
    ActiveRecord::Base.configurations.configs_for(env_name: "test").each do |db_config|
      ActiveRecord::Tasks::DatabaseTasks.purge(db_config)
    end
  end

  # desc 'Load the test schema'
  task prepare: :load_config do
    unless ActiveRecord::Base.configurations.blank?
      db_namespace["test:load_schema"].invoke
    end
  end

  ActiveRecord::Tasks::DatabaseTasks.for_each(databases) do |name|
    # desc "Recreate the #{name} test database from an existent schema.rb file"
    namespace :load_schema do
      task name => "db:test:purge:#{name}" do
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: "test", name: name) do |conn|
          db_config = conn.pool.db_config
          ActiveRecord::Schema.verbose = false
          schema_format = ENV.fetch("SCHEMA_FORMAT", ActiveRecord.schema_format).to_sym
          ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config, schema_format)
        end
      end
    end

    # desc "Empty the #{name} test database"
    namespace :purge do
      task name => %w(load_config check_protected_environments) do
        ActiveRecord::Tasks::DatabaseTasks.with_temporary_connection_for_each(env: "test", name: name) do |conn|
          db_config = conn.pool.db_config
          ActiveRecord::Tasks::DatabaseTasks.purge(db_config)
        end
      end
    end

    # desc 'Load the #{name} database test schema'
    namespace :prepare do
      task name => :load_config do
        db_namespace["test:load_schema:#{name}"].invoke
      end
    end
  end
end

end

namespace :railties do

namespace :install do
  # desc "Copy missing migrations from Railties (e.g. engines). You can specify Railties to use with FROM=railtie1,railtie2 and database to copy to with DATABASE=database."
  task migrations: :'db:load_config' do
    to_load = ENV["FROM"].blank? ? :all : ENV["FROM"].split(",").map(&:strip)
    railties = {}
    Rails.application.migration_railties.each do |railtie|
      next unless to_load == :all || to_load.include?(railtie.railtie_name)

      if railtie.respond_to?(:paths) && (path = railtie.paths["db/migrate"].first)
        railties[railtie.railtie_name] = path
      end

      unless ENV["MIGRATIONS_PATH"].blank?
        railties[railtie.railtie_name] = railtie.root + ENV["MIGRATIONS_PATH"]
      end
    end

    on_skip = Proc.new do |name, migration|
      puts "NOTE: Migration #{migration.basename} from #{name} has been skipped. Migration with the same name already exists."
    end

    on_copy = Proc.new do |name, migration|
      puts "Copied migration #{migration.basename} from #{name}"
    end

    if ENV["DATABASE"].present? && ENV["DATABASE"] != "primary"
      config = ActiveRecord::Base.configurations.configs_for(name: ENV["DATABASE"])
      raise "Invalid DATABASE provided" if config.blank?
      destination = config.migrations_paths
      raise "#{ENV["DATABASE"]} does not have a custom migration path" if destination.blank?
    else
      destination = ActiveRecord::Tasks::DatabaseTasks.migrations_paths.first
    end

    ActiveRecord::Migration.copy(destination, railties,
                                  on_skip: on_skip, on_copy: on_copy)
  end
end

end