Rakefile in embulk-input-jira-0.0.6 vs Rakefile in embulk-input-jira-0.0.7

@@ -1,64 +1,15 @@
 require "bundler/gem_tasks"
 require 'rspec/core/rake_task'
-require "json"
-require "pathname"
-require "open-uri"
+require "everyleaf/embulk_helper/tasks"
 
+Everyleaf::EmbulkHelper::Tasks.install({
+  gemspec: "./embulk-input-jira.gemspec",
+  github_name: "treasure-data/embulk-input-jira",
+})
 
 task default: :spec
 
 desc "Run all examples"
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.rspec_opts = %w[--color]
-end
-
-namespace :release do
-  desc "Add header of now version release to ChangeLog and bump up version"
-  task :prepare do
-    root_dir = Pathname.new(File.expand_path("../", __FILE__))
-    changelog_file = root_dir.join("CHANGELOG.md")
-    gemspec_file = root_dir.join("embulk-input-jira.gemspec")
-
-    system("git fetch origin")
-
-    # detect merged PR
-    old_version = gemspec_file.read[/spec\.version += *"([0-9]+\.[0-9]+\.[0-9]+)"/, 1]
-    pr_numbers = `git log v#{old_version}..origin/master --oneline`.scan(/#[0-9]+/)
-
-    if !$?.success? || pr_numbers.empty?
-      puts "Detecting PR failed. Please confirm if any PR were merged after the latest release."
-      exit(false)
-    end
-
-    # Generate new version
-    major, minor, patch = old_version.split(".").map(&:to_i)
-    new_version = "#{major}.#{minor}.#{patch + 1}"
-
-    # Update ChangeLog
-    pr_descriptions = pr_numbers.map do |number|
-      body = open("https://api.github.com/repos/treasure-data/embulk-input-jira/issues/#{number.gsub("#", "")}").read
-      payload = JSON.parse(body)
-      "* [] #{payload["title"]} [#{number}](https://github.com/treasure-data/embulk-input-jira/pull/#{number.gsub('#', '')})"
-    end.join("\n")
-
-    new_changelog = <<-HEADER
-## #{new_version} - #{Time.now.strftime("%Y-%m-%d")}
-#{pr_descriptions}
-
-#{changelog_file.read.chomp}
-HEADER
-
-    File.open(changelog_file, "w") {|f| f.write(new_changelog) }
-
-    # Update version.rb
-    old_content = gemspec_file.read
-    File.open(gemspec_file, "w") do |f|
-      f.write old_content.gsub(/(spec\.version += *)".*?"/, %Q!\\1"#{new_version}"!)
-    end
-
-    # Update Gemfile.lock
-    system("bundle install")
-
-    puts "ChangeLog, version and Gemfile.lock were updated. New version is #{new_version}."
-  end
 end