augeas: use incl/lens to make loading faster.

manifests/config.pp

@@ -30,7 +30,8 @@
 define postfix::config ($value, $ensure = present) {
 
   Augeas {
-    context => '/files/etc/postfix/main.cf',
+    incl    => '/etc/postfix/main.cf',
+    lens    => 'Postfix_Main.lns',
     notify  => Service['postfix'],
     require => File['/etc/postfix/main.cf'],
   }

manifests/transport.pp

@@ -69,7 +69,8 @@ define postfix::transport (
 
   augeas {"Postfix transport - ${name}":
     load_path => '/usr/share/augeas/lenses/contrib/',
-    context   => "/files${file}",
+    lens      => 'Postfix_Transport.aug',
+    incl      => $file,
     changes   => $changes,
     require   => [Package['postfix'], Augeas::Lens['postfix_transport']],
     notify    => Exec['generate /etc/postfix/transport.db'],

manifests/virtual.pp

@@ -59,7 +59,8 @@ define postfix::virtual (
 
   augeas {"Postfix virtual - ${name}":
     load_path => '/usr/share/augeas/lenses/contrib/',
-    context   => "/files${file}",
+    incl      => $file,
+    lens      => 'Postfix_Virtual.aug',
     changes   => $changes,
     require   => [Package['postfix'], Augeas::Lens['postfix_transport']],
     notify    => Exec['generate /etc/postfix/virtual.db'],