Telegram failed notify (#207)

* Telegram deploy failure support

* Update documentation for telegram recipe

docs/telegram.md

@@ -33,12 +33,18 @@ before('deploy', 'telegram:notify');
 - `telegram_success_text` – success template, default:
   ```
   Deploy to *{{target}}* successful
+
+  ```
+- `telegram_failure_text` – failure template, default:
+  ```
+  Deploy to *{{target}}* failed
   ```
 
 ## Tasks
 
 - `telegram:notify` – send message to telegram
 - `telegram:notify:success` – send success message to telegram
+- `telegram:notify:failure` – send failure message to telegram
 
 ## Usage
 
@@ -53,4 +59,8 @@ If you want to notify about successful end of deployment add this too:
 ```php
 after('success', 'telegram:notify:success');
 ```
+If you want to notify about failed deployment add this too:
+
+```php
+after('deploy:failed', 'telegram:notify:failure');
 

recipe/telegram.php

@@ -6,7 +6,7 @@
     2. Take telegrambot token (Like: 123456789:SOME_STRING) and set `telegram_token` parameter
     3. Send /start to your bot, open https://api.telegram.org/bot{telegram_token}/getUpdates
     4. Take chat_id from response, and set `telegram_chat_id` parameter
-    5. If you want, you can edit `telegram_text` and `telegram_success_text`
+    5. If you want, you can edit `telegram_text`, `telegram_success_text` or `telegram_failure_text`
     6. Profit!
  */
 namespace Deployer;
@@ -31,6 +31,7 @@
 // Deploy message
 set('telegram_text', '_{{user}}_ deploying `{{branch}}` to *{{target}}*');
 set('telegram_success_text', 'Deploy to *{{target}}* successful');
+set('telegram_failure_text', 'Deploy to *{{target}}* failed');
 
 
 desc('Notifying Telegram');
@@ -93,3 +94,33 @@
     ->once()
     ->shallow()
     ->setPrivate();
+
+  desc('Notifying Telegram about deploy failure');
+  task('telegram:notify:failure', function () {
+      if (!get('telegram_token', false)) {
+          return;
+      }
+
+      if (!get('telegram_chat_id', false)) {
+          return;
+      }
+
+      $telegramUrl = get('telegram_url') . '?' . http_build_query (
+          Array (
+              'chat_id' => get('telegram_chat_id'),
+              'text' => get('telegram_failure_text'),
+              'parse_mode' => 'Markdown',
+          )
+      );
+
+      $httpie = Httpie::get($telegramUrl);
+
+      if (get('telegram_proxy', '') !== '') {
+          $httpie = $httpie->setopt(CURLOPT_PROXY, get('telegram_proxy'));
+      }
+
+      $httpie->send();
+})
+    ->once()
+    ->shallow()
+    ->setPrivate();