Added IndexCommand that lists all the resources available to download and install

bin/gpm

@@ -23,5 +23,6 @@ $grav = Grav::instance(['loader' => $autoload]);
 $app = new Application('Grav Package Manager', '0.1.0');
 $app->addCommands(array(
     new \Grav\Console\Gpm\FetchCommand($grav),
+    new \Grav\Console\Gpm\IndexCommand($grav),
 ));
 $app->run();

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

@@ -0,0 +1,94 @@
+<?php
+namespace Grav\Console\Gpm;
+
+use Grav\Common\Grav;
+use Grav\Common\Cache;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Formatter\OutputFormatterStyle;
+
+class IndexCommand extends Command {
+
+    protected $input;
+    protected $ouput;
+    protected $data;
+    protected $argv;
+
+    public function __construct(Grav $grav){
+        $this->grav = $grav;
+
+        // just for the gpm cli we force the filesystem driver cache
+        $this->grav['config']->set('system.cache.driver', 'default');
+        $this->argv = $_SERVER['argv'][0];
+
+        parent::__construct();
+    }
+
+    protected function configure() {
+        $this
+        ->setName("index")
+        ->addOption(
+            'force',
+            'f',
+            InputOption::VALUE_NONE,
+            'Force re-fetching the data from remote'
+        )
+        ->setDescription("Lists the plugins and themes available for installation")
+        ->setHelp('The <info>index</info> command lists the plugins and themes available for installation');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $this->input  = $input;
+        $this->output = $output;
+
+        $this->setColors();
+
+        $fetchCommand = $this->getApplication()->find('fetch');
+        $args         = new ArrayInput(array('command' => 'fetch', '-f' => $input->getOption('force')));
+        $commandExec = $fetchCommand->run($args, $output);
+
+        if ($commandExec != 0){
+            $output->writeln("<red>Error:</red> An error occured while trying to fetch data from <cyan>getgrav.org</cyan>");
+            exit;
+        }
+
+        $this->data = $this->grav['cache']->fetch(md5('cli:gpm'));
+
+        $this->output->writeln('');
+
+        foreach ($this->data as $type => $result) {
+            $result = json_decode($result)->results;
+            $name = $result->name;
+
+            $this->output->writeln("<green>$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('');
+        }
+
+        $this->output->writeln('You can either get more informations about a package by typing:');
+        $this->output->writeln('    <green>'.$this->argv.' info <cyan><package></cyan></green>');
+        $this->output->writeln('');
+        $this->output->writeln('Or you can install a package by typing:');
+        $this->output->writeln('    <green>'.$this->argv.' install <cyan><package></cyan></green>');
+        $this->output->writeln('');
+    }
+
+       private function setColors()
+    {
+        $this->output->getFormatter()->setStyle('normal', new OutputFormatterStyle('white'));
+        $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')));
+    }
+}