Added destination option to allow using the IndexCommand on a different grav instance

IndexCommand displays the local and remote versions. It also detects if the package is already installed

system/src/Grav/Console/Gpm/IndexCommand.php

@@ -17,6 +17,7 @@ class IndexCommand extends Command {
     protected $ouput;
     protected $data;
     protected $argv;
+    protected $destination;
 
     public function __construct(Grav $grav){
         $this->grav = $grav;
@@ -37,6 +38,13 @@ class IndexCommand extends Command {
             InputOption::VALUE_NONE,
             'Force re-fetching the data from remote'
         )
+        ->addOption(
+            'destination',
+            'd',
+            InputOption::VALUE_OPTIONAL,
+            'The destination where the packages check should be looked at. By default this would be where the grav instance has been launched from',
+            GRAV_ROOT
+        )
         ->setDescription("Lists the plugins and themes available for installation")
         ->setHelp('The <info>index</info> command lists the plugins and themes available for installation');
     }
@@ -45,6 +53,7 @@ class IndexCommand extends Command {
     {
         $this->input  = $input;
         $this->output = $output;
+        $this->destination = realpath($this->input->getOption('destination'));
 
         $this->setColors();
 
@@ -68,7 +77,7 @@ class IndexCommand extends Command {
             $this->output->writeln("<green>$name</green> [ ".count($result->data)." ]");
 
             foreach ($result->data as $index => $package) {
-                $this->output->writeln(str_pad($index + 1, 2, '0', STR_PAD_LEFT).". <cyan>".str_pad($package->name, 15)."</cyan> [".str_pad($package->slug, 15, ' ', STR_PAD_BOTH)."]");
+                $this->output->writeln(str_pad($index + 1, 2, '0', STR_PAD_LEFT).". <cyan>".str_pad($package->name, 15)."</cyan> [".str_pad($package->slug, 15, ' ', STR_PAD_BOTH)."] ". $this->versionDetails($package));
            }
 
            $this->output->writeln('');
@@ -82,13 +91,37 @@ class IndexCommand extends Command {
         $this->output->writeln('');
     }
 
-       private function setColors()
+    private function setColors()
     {
         $this->output->getFormatter()->setStyle('normal', new OutputFormatterStyle('white'));
+        $this->output->getFormatter()->setStyle('yellow', new OutputFormatterStyle('yellow', null, array('bold')));
         $this->output->getFormatter()->setStyle('red', new OutputFormatterStyle('red', null, array('bold')));
         $this->output->getFormatter()->setStyle('cyan', new OutputFormatterStyle('cyan', null, array('bold')));
         $this->output->getFormatter()->setStyle('green', new OutputFormatterStyle('green', null, array('bold')));
         $this->output->getFormatter()->setStyle('magenta', new OutputFormatterStyle('magenta', null, array('bold')));
         $this->output->getFormatter()->setStyle('white', new OutputFormatterStyle('white', null, array('bold')));
     }
+
+    private function versionDetails($package)
+    {
+        $localVersion  = @file_get_contents($this->destination.DS.$package->install_path.DS."VERSION");
+        $remoteVersion = $package->version;
+        if ($localVersion) $localVersion = str_replace(array("\r", "\n"), '', $localVersion);
+        $compare       = version_compare($localVersion, $remoteVersion);
+
+        if (!$localVersion || !$compare){
+            $installed = !$localVersion ? ' (<magenta>not installed</magenta>)' : ' (<cyan>installed</cyan>)';
+            return " [v<green>$remoteVersion</green>]$installed";
+        }
+
+
+        if ($compare < 0){
+            return " [v<red>$localVersion</red> <cyan>-></cyan> v<green>$remoteVersion</green>]";
+        }
+
+        if ($compare > 0){
+            return " [Great Scott! -> local: v<yellow>$localVersion</yellow> | remote: v<yellow>$remoteVersion</yellow>]";
+        }
+        var_dump($localVersion, $remoteVersion, version_compare($localVersion, $remoteVersion));
+    }
 }