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static-php-cli/src/SPC/builder/traits/UnixSystemUtilTrait.php

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<?php
declare(strict_types=1);
namespace SPC\builder\traits;
/**
* Unix 系统的工具函数 Trait适用于 Linux、macOS
*/
trait UnixSystemUtilTrait
{
/**
* @param string $name 命令名称
* @param array $paths 寻找的目标路径(如果不传入,则使用环境变量 PATH
* @return null|string 找到了返回命令路径,找不到返回 null
*/
public static function findCommand(string $name, array $paths = []): ?string
{
if (!$paths) {
$paths = explode(PATH_SEPARATOR, getenv('PATH'));
}
if (str_starts_with($name, '/')) {
return file_exists($name) ? $name : null;
}
foreach ($paths as $path) {
if (file_exists($path . DIRECTORY_SEPARATOR . $name)) {
return $path . DIRECTORY_SEPARATOR . $name;
}
}
return null;
}
/**
* @param array $vars Variables, like: ["CFLAGS" => "-Ixxx"]
* @return string like: CFLAGS="-Ixxx"
*/
public static function makeEnvVarString(array $vars): string
{
$str = '';
foreach ($vars as $key => $value) {
if ($str !== '') {
$str .= ' ';
}
$str .= $key . '=' . escapeshellarg($value);
}
return $str;
}
}