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<?php |
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namespace Dock\Plugins\ExtraHostname; |
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use Dock\IO\ProcessRunner; |
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class HostsFileResolutionWriter implements HostnameResolutionWriter |
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{ |
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/** |
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* @var ProcessRunner |
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*/ |
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private $processRunner; |
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/** |
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* @param ProcessRunner $processRunner |
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*/ |
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public function __construct(ProcessRunner $processRunner) |
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{ |
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$this->processRunner = $processRunner; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function write($hostname, $address) |
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{ |
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$this->removeHostname($hostname); |
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$hostsFilePath = $this->getFilePath(); |
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$contents = file_get_contents($hostsFilePath); |
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$resolutionLine = $this->getHostsFileResolutionLine($hostname, $address); |
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$contents .= PHP_EOL.$resolutionLine.PHP_EOL; |
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$this->writeAsRoot($hostsFilePath, $contents); |
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} |
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/** |
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* Remove hostname reference from `/etc/hosts`. |
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* |
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* @param string $hostname |
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*/ |
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private function removeHostname($hostname) |
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{ |
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$filePath = $this->getFilePath(); |
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$quotedHostname = preg_quote($hostname); |
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$fileContents = ''; |
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foreach (file($filePath) as $line) { |
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$trimmedLine = trim($line); |
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if (preg_match('#'.$quotedHostname.' \# dock-cli$#i', $trimmedLine)) { |
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continue; |
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} |
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$fileContents .= $line; |
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} |
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$this->writeAsRoot($filePath, $fileContents); |
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} |
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/** |
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* @return string |
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*/ |
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private function getFilePath() |
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{ |
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return '/etc/hosts'; |
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} |
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/** |
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* @param string $targetPath |
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* @param string $fileContents |
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*/ |
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private function writeAsRoot($targetPath, $fileContents) |
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{ |
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$temporaryFile = tempnam(sys_get_temp_dir(), 'hostFile'); |
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file_put_contents($temporaryFile, $fileContents); |
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$this->processRunner->run(sprintf('sudo cp %s %s', $temporaryFile, $targetPath)); |
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} |
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/** |
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* @param string $hostname |
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* @param string $address |
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* |
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* @return string |
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*/ |
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private function getHostsFileResolutionLine($hostname, $address) |
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{ |
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return $address.' '.$hostname.' # dock-cli'; |
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} |
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} |
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