CMS-166 - backup:automatic:enable --keep-for parameter fix (#2166)

* CMS-166 - backup:automatic:enable --keep-for parameter fix

* Update CHANGELOG.md

* Remove redundant expression. Code style.

* Adjust test to match code updates

* Revise CHANGELOG.md statement

Author: namespacebrian

CHANGELOG.md

@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file. This projec
 
 ## MASTER
 
+- Fix `backup:automatic:enable --keep-for` parameter not being respected (#2166)
+
 ## 2.6.0 - 2021-06-04
 
 ### Added

src/Commands/Backup/Automatic/EnableCommand.php

@@ -33,6 +33,12 @@ class EnableCommand extends TerminusCommand implements SiteAwareInterface
     public function enableSchedule($site_env, $options = ['day' => null, 'keep-for' => null,])
     {
         list(, $env) = $this->getSiteEnv($site_env);
+
+        // Schedule Backup workflow expects 'weekly-ttl' as input option.
+        if (isset($options['keep-for'])) {
+            $options['weekly-ttl'] = $options['keep-for'];
+        }
+
         $env->getBackups()->setBackupSchedule($options);
         $this->log()->notice('Backup schedule successfully set.');
     }

tests/fixtures/backup-schedule-set-ttl.yml

@@ -168,7 +168,7 @@
             Content-type: application/json
             Authorization: 'Bearer 11111111-1111-1111-1111-111111111111:64461ccc-9666-11e6-ae7a-bc764e10d7c2:MDSxnCT7RyKhDzs43QKK5'
             Accept: null
-        body: '{"type":"change_backup_schedule","params":{"backup_schedule":{"0":{"hour":null,"ttl":691200},"1":{"hour":null,"ttl":691200},"2":{"hour":null,"ttl":2764800},"3":{"hour":null,"ttl":691200},"4":{"hour":null,"ttl":691200},"5":{"hour":null,"ttl":691200},"6":{"hour":null,"ttl":691200}}}}'
+        body: '{"type":"change_backup_schedule","params":{"backup_schedule":{"0":{"hour":null,"ttl":691200},"1":{"hour":null,"ttl":691200},"2":{"hour":null,"ttl":15552000},"3":{"hour":null,"ttl":691200},"4":{"hour":null,"ttl":691200},"5":{"hour":null,"ttl":691200},"6":{"hour":null,"ttl":691200}}}}'
     response:
         status:
             http_version: '1.1'
@@ -250,3 +250,4 @@
             Vary: Accept-Encoding
             Strict-Transport-Security: max-age=31536000
         body: '{"0": {"hour": 16, "ttl": 691200}, "1": {"hour": 16, "ttl": 691200}, "2": {"hour": 16, "ttl": 15552000}, "3": {"hour": 16, "ttl": 691200}, "4": {"hour": 16, "ttl": 691200}, "5": {"hour": 16, "ttl": 691200}, "6": {"hour": 16, "ttl": 691200}}'
+