Added new GPM version command that allows to ask for the version of the Grav instance as well as any installed package. It also supports multiple arguments and if an update is available it will be shown

bin/gpm

@@ -34,6 +34,7 @@ $grav['themes']->init();
 $app = new Application('Grav Package Manager', GRAV_VERSION);
 $app->addCommands(array(
     new \Grav\Console\Gpm\IndexCommand(),
+    new \Grav\Console\Gpm\VersionCommand(),
     new \Grav\Console\Gpm\InfoCommand(),
     new \Grav\Console\Gpm\InstallCommand(),
     new \Grav\Console\Gpm\UpdateCommand(),

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

@@ -0,0 +1,95 @@
+<?php
+namespace Grav\Console\Gpm;
+
+use Grav\Common\GPM\GPM;
+use Grav\Common\GPM\Upgrader;
+use Grav\Console\ConsoleTrait;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Class VersionCommand
+ * @package Grav\Console\Gpm
+ */
+class VersionCommand extends Command
+{
+    use ConsoleTrait;
+
+    /**
+     * @var
+     */
+    protected $gpm;
+
+    /**
+     *
+     */
+    protected function configure()
+    {
+        $this
+            ->setName("version")
+            ->addOption(
+                'force',
+                'f',
+                InputOption::VALUE_NONE,
+                'Force re-fetching the data from remote'
+            )
+            ->addArgument(
+                'package',
+                InputArgument::IS_ARRAY | InputArgument::OPTIONAL,
+                'The package or packages that is desired to know the version of. By default and if not specified this would be grav'
+            )
+            ->setDescription("Shows the version of an installed package. If available also shows pending updates.")
+            ->setHelp('The <info>version</info> command displays the current version of a package installed and, if available, the available version of pending updates');
+    }
+
+    /**
+     * @param InputInterface  $input
+     * @param OutputInterface $output
+     *
+     * @return int|null|void
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $this->setupConsole($input, $output);
+
+        $this->gpm = new GPM($this->input->getOption('force'));
+        $packages = $this->input->getArgument('package');
+
+        if (!count($packages)) {
+            $packages = ['grav'];
+        }
+
+        foreach ($packages as $package) {
+            $package = strtolower($package);
+            $name = null;
+            $version = null;
+            $updatable = false;
+
+            if ($package == 'grav') {
+                $name = 'Grav';
+                $version = GRAV_VERSION;
+                $upgrader = new Upgrader();
+
+                if ($upgrader->isUpgradable()) {
+                    $updatable = ' [upgradable: v<green>' . $upgrader->getRemoteVersion() . '</green>]';
+                }
+
+            } else {
+                if ($installed = $this->gpm->findPackage($package)) {
+                    $name = $installed->name;
+                    $version = $installed->version;
+
+                    if ($this->gpm->isUpdatable($package)) {
+                        $updatable = ' [updatable: v<green>' . $installed->available . '</green>]';
+                    }
+                }
+            }
+
+            $updatable = $updatable ?: '';
+            $this->output->writeln('You are running <white>' . $name . '</white> v<cyan>' . $version . '</cyan>' . $updatable);
+        }
+    }
+}