Redmine::Plugin.register :redmine_continuous_deployment do
  name 'Redmine Continuous Deployment plugin'
  author 'Takayuki Kyowa'
  description 'Redmine Continuous Deployment plugin'
  version '0.0.1'

  menu :project_menu, :deploy_history,  # ①
       { :controller => 'deployments', :action => 'index' }, 
       :caption => "デプロイ", :last => true, 
       :param => :project_id # ②
  permission :view_deploy_history, { :deployments => [ :index ] }, :public => true # ③
end

  permission 
    :deploy_histories,              # パーミッションの名前。パーミッション全体で一意でなければならない。
    { :deployments => [ :index ] }, # 制御対象の画面をあらわすハッシュ。menuメソッドで指定したコントローラ / アクションを指定する。
    :public => true                 # trueにすると常に表示される。

class CreateDeployHistories < ActiveRecord::Migration
  def self.up
    create_table :deploy_histories do |t|
      t.column :project_id, :integer    # デプロイ時のプロジェクト
      t.column :deployer_id, :integer   # デプロイしたユーザ
      t.column :changeset_id, :integer  # デプロイ時のチェンジセット（リビジョン）
      t.column :started_on, :datetime   # 開始時間
      t.column :deployed_on, :datetime  # 終了時間
      t.column :return_code, :integer   # デプロイの実行結果。コマンドの終了ステータスを保存する。
      t.column :log, :text              # デプロイのログ
    end
  end

  def self.down
    drop_table :deploy_histories
  end
end

class DeployHistory < ActiveRecord::Base
  belongs_to :project
  belongs_to :deployer, :class_name => 'User', :foreign_key => 'deployer_id'
  belongs_to :changeset

  def result_name
    self.return_code == 0 ? "成功" : "失敗"
  end
end

class DeploymentsController < ApplicationController

  before_filter :find_project # ①

  def index
    @histories = DeployHistory.find(:all)
  end

  private

  def find_project
    @project = Project.find(params[:project_id])
  end

<style type="text/css">
  table.deploy-histories {
    width: 80%;
  }
  tr.deploy-history {
    text-align:center;
  }
</style>

<h2>デプロイ</h2>

<div style='margin-bottom: 10px'>
  <%= button_to "デプロイ！", { :action => "deploy", :project_id => params[:project_id] }, :confirm => "デプロイします。よろしいですか？" %>
</div>

<table class="list deploy-histories">
  <thead><tr>
    <th>完了日時</th>
    <th>開始日時</th>
    <th>結果</th>
    <th>担当者</th>
    <th>リビジョン</th>
    <th>詳細</th>
  </tr></thead>
  <tbody>
<%- @histories.each do |history| -%>
  <tr class="<%= cycle("odd", "even") %> deploy-history">
    <td><%=h history.deployed_on.strftime("%F %H:%M") %></td>
    <td><%=h history.started_on.strftime("%F %H:%M") %></td>
    <td><%=h history.result_name %></td>
    <td><%=h history.deployer.login %></td>
    <td><%=h history.changeset.revision %></td>
    <td><%= link_to "URL", :action => "show", :id => history.id, :project_id => history.project_id %></td>
  </tr>
<%- end -%>
  </tbody>
</table>

def deploy
  ### ① チケットの状態チェック
  warning_status = IssueStatus.find(:first, :conditions => { :name => "実装完了" })
  if @project.issues.map(&:status).include?(warning_status)
    flash[:error] = "未チェックのチケットが存在します！"
    redirect_to :action => "index", :project_id => params[:project_id]
    return
  end

  ### ② リポジトリの更新、最新リビジョン番号の取得
  repository = @project.repository
  repository.fetch_changesets
  latest_changeset = Changeset.find(:first, :conditions => { :repository_id => repository }, :order => "revision DESC")

  ### ③ デプロイの実行
  start = Time.now
  cmd = "cap deploy 2>&1"
  finish = Time.now

  ### ④ 実行結果の確認
  out = `#{cmd}`
  return_code = $? ? $?.exitstatus : 8929

  ### ⑤ 履歴の作成
  DeployHistory.create!(:project => @project,
                        :changeset => latest_changeset,
                        :log => out,
                        :started_on => start,
                        :deployed_on => finish,
                        :deployer => User.current)

  ### ⑥ indexアクションに戻る
  flash[:notice] = "デプロイに成功しました！ リビジョン: #{latest_changeset.revision}"
  redirect_to :action => "index", :project_id => params[:project_id]
end

  activity_provider :deploy_histories, :class_name => "DeployHistory"

  acts_as_activity_provider :timestamp => "deployed_on",
                            :author_key => :deployer_id,
                            :find_options => { :include => :project } # ①

  acts_as_event :title => Proc.new {|inst| "リビジョン#{inst.changeset.revision}番がデプロイされました。"},
                :description => :log, # 120文字に短縮されます。
                :datetime => :deployed_on,
                :url => Proc.new {|inst| {:controller => 'deployments', :action => 'show', :id => inst.id, :project_id => inst.project_id }},
                :author => :deployer