2022-08-19 23:10:43 +08:00
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<?php
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declare(strict_types=1);
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namespace ZM\Config;
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use Onebot\V12\Config\Config;
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use ZM\Exception\ConfigException;
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class RefactoredConfig
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{
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/**
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* @var array 支持的文件扩展名
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*/
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public const ALLOWED_FILE_EXTENSIONS = ['php', 'yaml', 'yml', 'json', 'toml'];
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2022-08-20 15:58:46 +08:00
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/**
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* @var array 配置文件加载顺序,后覆盖前
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*/
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public const LOAD_ORDER = ['global', 'environment', 'patch'];
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2022-08-19 23:10:43 +08:00
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/**
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* @var array 已加载的配置文件
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*/
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private $loaded_files = [];
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/**
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* @var array 配置文件路径
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*/
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private $config_paths;
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/**
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* @var string 当前环境
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*/
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private $environment;
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/**
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* @var Config 内部配置容器
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*/
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private $holder;
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/**
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* 构造配置实例
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*
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2022-08-20 18:28:22 +08:00
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* @param array $config_paths 配置文件路径
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* @param string $environment 环境
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2022-08-19 23:10:43 +08:00
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*
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* @throws ConfigException 配置文件加载出错
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*/
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public function __construct(array $config_paths, string $environment = 'development')
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{
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$this->config_paths = $config_paths;
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$this->environment = $environment;
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$this->holder = new Config([]);
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$this->loadFiles();
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}
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/**
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2022-08-20 15:58:46 +08:00
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* 加载配置文件
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*
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* @throws ConfigException
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2022-08-19 23:10:43 +08:00
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*/
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2022-08-20 15:58:46 +08:00
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public function loadFiles(): void
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2022-08-19 23:10:43 +08:00
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{
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2022-08-20 15:58:46 +08:00
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$stages = [
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'global' => [],
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'environment' => [],
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'patch' => [],
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];
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// 遍历所有需加载的文件,并按加载类型进行分组
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foreach ($this->config_paths as $config_path) {
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$files = scandir($config_path);
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foreach ($files as $file) {
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2022-08-20 18:28:22 +08:00
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[, $ext, $load_type,] = $this->getFileMeta($file);
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2022-08-20 17:43:06 +08:00
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// 略过不支持的文件
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2022-08-20 18:28:22 +08:00
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if (!in_array($ext, self::ALLOWED_FILE_EXTENSIONS, true)) {
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2022-08-20 15:58:46 +08:00
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continue;
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}
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2022-08-20 17:43:06 +08:00
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2022-08-20 15:58:46 +08:00
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$file_path = $config_path . '/' . $file;
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if (is_dir($file_path)) {
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// TODO: 支持子目录(待定)
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continue;
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}
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2022-08-20 17:43:06 +08:00
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// 略过不应加载的文件
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if (!$this->shouldLoadFile($file)) {
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continue;
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}
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// 略过加载顺序未知的文件
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2022-08-20 15:58:46 +08:00
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if (!in_array($load_type, self::LOAD_ORDER, true)) {
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continue;
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}
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2022-08-20 17:43:06 +08:00
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// 将文件加入到对应的加载阶段
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2022-08-20 15:58:46 +08:00
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$stages[$load_type][] = $file_path;
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}
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}
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// 按照加载顺序加载配置文件
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foreach (self::LOAD_ORDER as $load_type) {
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foreach ($stages[$load_type] as $file_path) {
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2022-08-20 17:43:06 +08:00
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$this->loadConfigFromPath($file_path);
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2022-08-20 15:58:46 +08:00
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}
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}
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}
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/**
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2022-08-20 18:28:22 +08:00
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* 获取文件元信息
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2022-08-19 23:10:43 +08:00
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*
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2022-08-20 18:28:22 +08:00
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* @param string $name 文件名
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2022-08-19 23:10:43 +08:00
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*
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2022-08-20 18:28:22 +08:00
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* @return array 文件元信息,数组元素按次序为:配置组名/扩展名/加载类型/环境类型
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2022-08-19 23:10:43 +08:00
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*/
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2022-08-20 18:28:22 +08:00
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private function getFileMeta(string $name): array
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2022-08-19 23:10:43 +08:00
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{
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2022-08-20 18:28:22 +08:00
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$basename = pathinfo($name, PATHINFO_BASENAME);
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$parts = explode('.', $basename);
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$ext = array_pop($parts);
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$load_type = $this->getFileLoadType(implode('.', $parts));
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if ($load_type === 'global') {
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$env = null;
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} else {
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$env = array_pop($parts);
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}
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$group = implode('.', $parts);
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return [$group, $ext, $load_type, $env];
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2022-08-20 15:58:46 +08:00
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}
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/**
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* 获取文件加载类型
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*
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* @param string $name 文件名
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*
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* @return string 可能为:global, environment, patch
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*/
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private function getFileLoadType(string $name): string
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{
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// 传入此处的 name 参数有三种可能的格式:
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// 1. 纯文件名:如 test,此时加载类型为 global
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// 2. 文件名.环境:如 test.development,此时加载类型为 environment
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// 3. 文件名.patch:如 test.patch,此时加载类型为 patch
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// 至于其他的格式,则为未定义行为
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if (strpos($name, '.') === false) {
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return 'global';
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}
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$name_and_env = explode('.', $name);
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if (count($name_and_env) !== 2) {
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return 'undefined';
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}
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if ($name_and_env[1] === 'patch') {
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return 'patch';
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2022-08-19 23:10:43 +08:00
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}
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2022-08-20 15:58:46 +08:00
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return 'environment';
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2022-08-19 23:10:43 +08:00
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}
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/**
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2022-08-20 15:58:46 +08:00
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* 判断是否应该加载配置文件
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2022-08-19 23:10:43 +08:00
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*
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2022-08-20 18:28:22 +08:00
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* @param string $path 文件名,包含扩展名
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2022-08-19 23:10:43 +08:00
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*/
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2022-08-20 18:28:22 +08:00
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private function shouldLoadFile(string $path): bool
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{
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2022-08-20 18:28:22 +08:00
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$name = pathinfo($path, PATHINFO_FILENAME);
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2022-08-20 15:58:46 +08:00
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// 传入此处的 name 参数有两种可能的格式:
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// 1. 纯文件名:如 test
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// 2. 文件名.环境:如 test.development
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// 对于第一种格式,在任何情况下均应该加载
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// 对于第二种格式,只有当环境与当前环境相同时才加载
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// 至于其他的格式,则为未定义行为
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if (strpos($name, '.') === false) {
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return true;
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}
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$name_and_env = explode('.', $name);
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if (count($name_and_env) !== 2) {
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return false;
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}
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return $name_and_env[1] === $this->environment;
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2022-08-19 23:10:43 +08:00
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}
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/**
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* 从传入的路径加载配置文件
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*
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* @param string $path 配置文件路径
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*
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* @throws ConfigException 传入的配置文件不支持
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*/
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2022-08-20 15:58:46 +08:00
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private function loadConfigFromPath(string $path): void
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{
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2022-08-20 15:58:46 +08:00
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if (in_array($path, $this->loaded_files, true)) {
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2022-08-19 23:10:43 +08:00
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return;
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}
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$this->loaded_files[] = $path;
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// 判断文件格式是否支持
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2022-08-20 18:28:22 +08:00
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[$group, $ext, $load_type, $env] = $this->getFileMeta($path);
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2022-08-20 15:58:46 +08:00
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if (!in_array($ext, self::ALLOWED_FILE_EXTENSIONS, true)) {
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2022-08-19 23:10:43 +08:00
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throw new ConfigException('E00079', "不支持的配置文件格式:{$ext}");
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}
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// 读取并解析配置
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$content = file_get_contents($path);
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$config = [];
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switch ($ext) {
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case 'php':
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$config = require $path;
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break;
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case 'json':
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$config = json_decode($content, true);
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break;
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case 'yaml':
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case 'yml':
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// TODO: 实现yaml解析
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break;
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case 'toml':
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// TODO: 实现toml解析
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break;
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default:
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throw new ConfigException('E00079', "不支持的配置文件格式:{$ext}");
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}
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// 加入配置
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2022-08-20 18:28:22 +08:00
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$this->merge($group, $config);
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}
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/**
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* 合并传入的配置数组至指定的配置项
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*
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* @param string $key 目标配置项,必须为数组
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* @param array $config 要合并的配置数组
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*/
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public function merge(string $key, array $config): void
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{
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$original = $this->get($key, []);
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$this->set($key, array_merge($original, $config));
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}
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/**
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* 获取配置项
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*
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* @param string $key 配置项名称,可使用.访问数组
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* @param mixed $default 默认值
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*
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* @return null|array|mixed
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*/
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public function get(string $key, $default = null)
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{
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return $this->holder->get($key, $default);
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}
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/**
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* 设置配置项
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* 仅在本次运行期间生效,不会保存到配置文件中哦
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*
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* @param string $key 配置项名称,可使用.访问数组
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* @param mixed $value 要写入的值,传入 null 会进行删除
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*/
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public function set(string $key, $value): void
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{
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$this->holder->set($key, $value);
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}
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/**
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* 获取内部配置容器
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*/
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public function getHolder(): Config
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{
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return $this->holder;
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}
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/**
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* 重载配置文件
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* 运行期间新增的配置文件不会被加载哟~
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*
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* @throws ConfigException
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*/
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public function reload(): void
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{
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$this->holder = new Config([]);
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$this->loadFiles();
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2022-08-19 23:10:43 +08:00
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}
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}
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