Consolidation\SiteProcess\ArgumentEngine

Complexity

Total Complexity

10

Size/Duplication

Total Lines	59
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	selectArgs()	0	10	1
A	appendOptions()	0	10	2
A	sshWrap()	0	18	2
A	interpolate()	0	5	1

<?php
namespace Consolidation\SiteProcess\Util;

use Consolidation\SiteAlias\AliasRecord;
use Symfony\Component\Process\Process;

class ArgumentEngine
{
    public function selectArgs(AliasRecord $siteAlias, $args, $options = [])
    {
    		$result = $args;

    		$result = $this->appendOptions($result, $options);
    		$result = $this->sshWrap($siteAlias, $result);
    		$result = $this->interpolate($siteAlias, implode(' ', $result));

    		return $result;
    }

    protected function appendOptions($result, $options)
    {
    	  foreach ($options as $option => $value)
    	  {
    	  		// TODO: escape as necessary
    	  		$result[] = "--{$option}={$value}";
    	  }

    	  return $result;
    }

    protected function sshWrap(AliasRecord $siteAlias, $result)
    {
    		// Exit early if not remote
    	  if (!$siteAlias->isRemote()) {
    	  	  return $result;
    	  }
    	  
    	  $ssh = [
    	      'ssh',
              // Is this needed or desired?
              '-o PasswordAuthentication=example',
              // Commands should add this themselves?
              '-t',
              $siteAlias->remoteHostWithUser(),
          ];

    	  return $ssh + $result;
    }

    protected function interpolate(AliasRecord $siteAlias, $message)
    {
    		$replacements = $this->replacements($siteAlias, $message);
        return strtr($message, $replacements);
    }

    protected function replacements(AliasRecord $siteAlias, $message, $default = '')
    {
    	  if (!preg_match_all('#{{([a-zA-Z0-9._-]+)}}#', $message, $matches, PREG_SET_ORDER)) {
    	  		return [];
    	  }
    	  $replacements = [];
    	  foreach ($matches as $matchSet) {
    	  	  list($sourceText, $key) = $matchSet;
    	  	  $replacementText = $siteAlias->get($key, $default);
    	  	  if ($replacementText !== null) {
		    	  	  $replacements[$sourceText] = $replacementText;
		    	  }
    	  }
    	  return $replacements;
    }
}