Using param's value inside (#1541)

* Parse Host params

* update changelog

CHANGELOG.md

@@ -1,10 +1,10 @@
 # Changelog
 
 ## master
-[v6.1.0...master](https://github.com/deployphp/deployer/compare/v6.1.0...master)
 
 ### Added
 - Added cache clear/warmup task for symfony4 recipe [#1575]
+- Added ability to use config params in host variables [#1508]
 - Make used shell configurable via `shellCommand` [#1536]
 
 ### Fixed
@@ -375,6 +375,7 @@
 [#1536]: https://github.com/deployphp/deployer/pull/1536
 [#1521]: https://github.com/deployphp/deployer/pull/1521
 [#1513]: https://github.com/deployphp/deployer/pull/1513
+[#1508]: https://github.com/deployphp/deployer/issues/1508
 [#1488]: https://github.com/deployphp/deployer/issues/1488
 [#1481]: https://github.com/deployphp/deployer/issues/1481
 [#1480]: https://github.com/deployphp/deployer/issues/1480

src/Host/Host.php

@@ -49,7 +49,7 @@ class Host
         }
 
         if ($this->identityFile) {
-            $this->sshArguments = $this->sshArguments->withFlag('-i', $this->identityFile);
+            $this->sshArguments = $this->sshArguments->withFlag('-i', $this->getIdentityFile());
         }
 
         if ($this->forwardAgent) {
@@ -73,7 +73,7 @@ class Host
      */
     public function getHostname()
     {
-        return $this->hostname;
+        return $this->config->parse($this->hostname);
     }
 
     /**
@@ -81,7 +81,7 @@ class Host
      */
     public function getRealHostname()
     {
-        return $this->realHostname;
+        return $this->config->parse($this->realHostname);
     }
 
     /**
@@ -107,7 +107,7 @@ class Host
      */
     public function getUser()
     {
-        return $this->user;
+        return $this->config->parse($this->user);
     }
 
     /**
@@ -161,7 +161,7 @@ class Host
      */
     public function getIdentityFile()
     {
-        return $this->identityFile;
+        return $this->config->parse($this->identityFile);
     }
 
     /**

test/src/Host/HostTest.php

@@ -73,4 +73,15 @@ class HostTest extends TestCase
         self::assertEquals('host/alias', $host->getHostname());
         self::assertEquals('host', "$host");
     }
+
+    public function testHostWithParams()
+    {
+        $host = new Host('host');
+        $value = 'new_value';
+        $host
+            ->set('env', $value)
+            ->identityFile('{{env}}');
+
+        self::assertEquals($value, $host->getIdentityFile());
+    }
 }