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<?php |
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/** |
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* Copyright (c) 2015-present Ganbaro Digital Ltd |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* * Neither the names of the copyright holders nor the names of his |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Libraries |
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* @package OperatingSystem/OsType/ValueBuilders |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2015-present Ganbaro Digital Ltd www.ganbarodigital.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://code.ganbarodigital.com/php-text-tools |
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*/ |
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namespace GanbaroDigital\OperatingSystem\OsType\ValueBuilders; |
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use GanbaroDigital\Filesystem\Checks\IsExecutableFile; |
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use GanbaroDigital\OperatingSystem\OsType\Values\CentOS; |
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use GanbaroDigital\OperatingSystem\OsType\Values\Debian; |
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use GanbaroDigital\OperatingSystem\OsType\Values\LinuxMint; |
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use GanbaroDigital\OperatingSystem\OsType\Values\Ubuntu; |
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use GanbaroDigital\ProcessRunner\ProcessRunners\PopenProcessRunner; |
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use GanbaroDigital\TextTools\Editors\TrimWhitespace; |
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use GanbaroDigital\TextTools\Filters\FilterForMatchingString; |
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use GanbaroDigital\TextTools\Filters\FilterColumns; |
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class BuildTypeFromLsbRelease |
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{ |
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public function __invoke($path = "/usr/bin/lsb_release") |
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{ |
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return self::usingBinary($path); |
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} |
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public static function usingDefaultPath() |
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{ |
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return self::usingBinary("/usr/bin/lsb_release"); |
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} |
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public static function usingBinary($pathToBinary) |
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{ |
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$output = self::getOutputFromBinary($pathToBinary); |
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if ($output === null) { |
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return null; |
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} |
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list($distroName, $distroVersion) = self::extractDistroDetails($output); |
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if ($distroName === null || $distroVersion === null) { |
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return null; |
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} |
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// do we have a match? |
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if (!isset(self::$osTypes[$distroName])) { |
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return null; |
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} |
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$osType = new self::$osTypes[$distroName]($distroVersion); |
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return $osType; |
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} |
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private static function getOutputFromBinary($pathToBinary) |
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{ |
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// make sure we have an executable binary |
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if (!IsExecutableFile::check($pathToBinary)) { |
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return null; |
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} |
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// get the info |
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$result = PopenProcessRunner::run([$pathToBinary, '-a']); |
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if ($result->getReturnCode() !== 0) { |
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return null; |
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} |
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// at this point, return the output |
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return $result->getOutput(); |
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} |
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private static function extractDistroDetails($output) |
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{ |
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// what do we have? |
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$lines = explode(PHP_EOL, $output); |
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$distroName = self::extractField($lines, 'Distributor ID:'); |
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$distroVersion = self::extractField($lines, 'Release:'); |
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if ($distroName === null || $distroVersion === null) { |
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return null; |
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} |
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$distroVersion = FilterColumns::from($distroVersion, '0-1', '.'); |
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return [$distroName, $distroVersion]; |
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} |
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private static function extractField($lines, $fieldName) |
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{ |
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$matches = FilterForMatchingString::against($lines, $fieldName); |
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if (empty($matches)) { |
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return null; |
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} |
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return TrimWhitespace::from(FilterColumns::from($matches[0], '1', ':')); |
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} |
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private static $osTypes = [ |
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'CentOS' => CentOS::class, |
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'Debian' => Debian::class, |
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'Ubuntu' => Ubuntu::class, |
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]; |
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} |
ganbarodigital /
php-operating-system
Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@returnannotation as described here.