Remove shell_config dependency

This replaces the `shell_config` resource on Debian-based systems with
an equivalent `augeas` resource.  It also changes it to depend on the
value of the `$svc_enable` variable instead of `$file_ensure`, bringing
it in-line with its purpose.

.fixtures.yml

@@ -3,6 +3,5 @@ fixtures:
     stdlib:
       repo: 'https://github.com/puppetlabs/puppetlabs-stdlib.git'
       ref:  '4.6.0'
-    shell_config: 'https://github.com/jhoblitt/shell_config.git'
   symlinks:
     smartd: "#{source_dir}"

README.md

@@ -39,8 +39,7 @@ The module includes a facter plugin to identify drives hiding behind an LSI
 MegaRAID/Dell PERC/Supermicro controller on Linux systems if you have the LSI
 proprietary `MegaCli` tool installed; we don't have any FreeBSD machines with
 this controller so haven't written the necessary code to use FreeBSD's standard
-`mfiutil(8)` utility instead.  The `shell_config` module is required to edit a
-Debian-specific configuration file; other OS families do not require it.
+`mfiutil(8)` utility instead.
 
 Currently, drives behind an LSI MegaRAID controller will be automatically
 probed and added to the `smartd` configuration file, if the `MegaCli` utility

manifests/init.pp

@@ -181,11 +181,15 @@
   # Special sauce for Debian where it's not enough for the rc script
   # to be enabled, it also needs its own extra special config file.
   if $::osfamily == 'Debian' {
-    shell_config { 'start_smartd':
-      ensure  => $file_ensure,
-      file    => '/etc/default/smartmontools',
-      key     => 'start_smartd',
-      value   => 'yes',
+    $debian_augeas_changes = $svc_enable ? {
+      false   => 'remove start_smartd',
+      default => 'set start_smartd "yes"',
+    }
+
+    augeas { 'shell_config_start_smartd':
+      lens    => 'Shellvars.lns',
+      incl    => '/etc/default/smartmontools',
+      changes => $debian_augeas_changes,
       before  => Service[$service_name],
       require => Package[$package_name],
     }

metadata.json

@@ -19,7 +19,6 @@
     { "operatingsystem": "FreeBSD" }
   ],
   "dependencies": [
-    { "name": "puppetlabs/stdlib", "version_requirement": ">= 4.6.0 < 5.0.0" },
-    { "name": "csail/shell_config", "version_requirement": ">= 0.0.1" }
+    { "name": "puppetlabs/stdlib", "version_requirement": ">= 4.6.0 < 5.0.0" }
   ]
 }