e107inc/e107

<?php
/**
 * e107 website system
 *
 * Copyright (C) 2008-2020 e107 Inc (e107.org)
 * Released under the terms and conditions of the
 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
 *
 */

class OsHelper
{
    const REGEX_MATCH_GIT_DESCRIBE_TAGS = "-[0-9]+-g[0-9a-f]+";

    /**
     * @param string $command The command to run
     * @param string $stdout Reference to the STDOUT output as a string
     * @param string $stderr Reference to the STDERR output as a string
     * @return int Return code of the command that was run
     */
    public static function run($command, &$stdout = "", &$stderr = "")
    {
        $stdout = $stderr = "";
        $descriptorspec = [
            1 => ['pipe', 'w'],
            2 => ['pipe', 'w'],
        ];
        $pipes = [];
        $resource = proc_open($command, $descriptorspec, $pipes);
        $stdout .= stream_get_contents($pipes[1]);
        $stderr .= stream_get_contents($pipes[2]);
        foreach ($pipes as $pipe)
        {
            fclose($pipe);
        }
        return proc_close($resource);
    }

    public static function runValidated($command, &$stdout = "", &$stderr = "")
    {
        $rc = OsHelper::run($command, $stdout, $stderr);
        if ($rc != 0)
        {
            throw new RuntimeException(
                "Error while running command (rc=$rc): " . $command . PHP_EOL .
                "========== STDOUT ==========" . PHP_EOL .
                $stdout . PHP_EOL .
                "========== STDERR ==========" . PHP_EOL .
                $stderr . PHP_EOL
            );
        }
        return $rc;
    }

    public static function gitVersionToPhpVersion($gitVersion, $verFileVersion = "0")
    {
        $verFileVersion = explode(" ", $verFileVersion);
        $verFileVersion = array_shift($verFileVersion);
        $version = preg_replace("/^v/", "", $gitVersion);
        $versionSplit = explode("-", $version);
        $matchGitDescribeTags = self::REGEX_MATCH_GIT_DESCRIBE_TAGS;
        if (preg_match("/{$matchGitDescribeTags}$/", $version))
        {
            $increment = 1;
            if (version_compare($verFileVersion, $version, '>'))
            {
                $increment = 0;
                $versionSplit[0] = $verFileVersion;
            }
            $version = implode("-", $versionSplit);
            return preg_replace_callback("/(.*\.)([0-9]+)([^.]*)({$matchGitDescribeTags})$/",
                function ($matches) use ($increment)
                {
                    return $matches[1] . ($matches[2] + $increment) . "dev" . $matches[4];
                }, $version);
        }
        return implode("-", $versionSplit);
    }

    public static function getVerFileVersion($verFilePath)
    {
        $verFileTokens = token_get_all(file_get_contents($verFilePath));
        $nextConstantEncapsedStringIsVersion = false;
        foreach ($verFileTokens as $verFileToken)
        {
            if (!isset($verFileToken[1])) continue;
            $token = $verFileToken[0];
            $value = trim($verFileToken[1], "'\"");

            if ($token === T_CONSTANT_ENCAPSED_STRING)
            {
                if ($nextConstantEncapsedStringIsVersion)
                {
                    return $value;
                }
                if ($value === 'e107_version') $nextConstantEncapsedStringIsVersion = true;
            }
        }
        return '0';
    }
}