Feature/3999 zip template from project

apps/dashboard/app/models/concerns/deflateable.rb

@@ -0,0 +1,5 @@
+module Deflateable
+  def deflate
+    system("tar -czvf #{directory}.tar.gz -C #{directory} .")
+  end
+end

apps/dashboard/app/models/project_template.rb

@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+# ProjectTemplate classes are used to create a ProjectTemplate from a Project object.
+class ProjectTemplate
+  include ActiveModel::Model
+  include Deflateable
+
+  class << self
+    def dataroot
+      OodAppkit.dataroot.join('templates').tap do |path|
+        path.mkpath unless path.exist?
+      rescue StandardError => e
+        Pathname.new('')
+      end
+    end
+  end
+
+  attr_accessor :id, :project_id, :name, :directory, :description, :icon, :files, :manifest
+  def initialize(attributes = {})
+    @project_id = attributes[:project_id]
+    project = Project.find(project_id)
+    @id = project.id
+    @name = project.name
+    @description = project.description
+    @icon = project.icon
+    @files = attributes[:files]
+    @directory = ProjectTemplate.dataroot.join(id)
+  end
+
+  def save
+    create_template_directory
+    create_manifest
+    copy_files
+    deflate
+  end
+
+  def default_template_directory
+    ProjectTemplate.dataroot
+  end
+
+  def manifest_path
+    directory.join('manifest.yml')
+  end
+
+  def files_path
+    directory.join('files')
+  end
+
+
+  private
+
+  def create_template_directory
+    directory.mkpath
+  end
+
+  def create_files_directory
+    files_path.mkpath
+  end
+
+  def create_manifest
+    File.open(manifest_path, 'w') do |f|
+      f.write(ProjectManifest.new(manifest_opts).to_yaml)
+      f.close
+    end
+  end
+
+  def copy_files
+    create_files_directory
+    files.each{ |file| FileUtils.cp_r(file, files_path.join(file.to_s.split("#{id}/").last)) }
+  end
+
+  def manifest_opts
+    {
+      id: id,
+      name: name,
+      description: description,
+      icon: icon,
+      files: files.map{ |file| directory.join(file.to_s).to_s }
+    }
+  end
+end