Merge pull request #423 from openHPI/implement_codeharbor_interface

Implement codeharbor interface

lib/file_io.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+# stolen from: https://makandracards.com/makandra/50526-fileio-writing-strings-as-carrierwave-uploads
+class FileIO < StringIO
+  def initialize(stream, filename)
+    super(stream)
+    @original_filename = filename
+  end
+
+  attr_reader :original_filename
+end

lib/tasks/export_public_exercises.rake

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+namespace :export_exercises do
+  desc 'exports all public exercises to codeharbor'
+  task :public, [:codeharbor_link_id] => [:environment] do |_, args|
+    codeharbor_link = CodeharborLink.find(args.codeharbor_link_id)
+    successful_exports = []
+    failed_exports = []
+    Exercise.where(public: true).each do |exercise|
+      puts "Exporting exercise \##{exercise.id}"
+      error = ExerciseService::PushExternal.call(
+        zip: ProformaService::ExportTask.call(exercise: exercise),
+        codeharbor_link: codeharbor_link
+      )
+      if error.nil?
+        successful_exports << exercise.id
+        puts "Successfully exported exercise\# #{exercise.id}"
+      else
+        failed_exports << exercise.id
+        puts "An error occured during export of exercise\# #{exercise.id}: #{error}"
+      end
+    end
+
+    puts "successful exports: count: #{successful_exports.count} \nlist: #{successful_exports}"
+    puts "failed exports: count: #{failed_exports.count} \nlist: #{failed_exports}"
+  end
+end