129 lines
4.0 KiB
Dart
129 lines
4.0 KiB
Dart
import 'dart:io';
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import 'package:path/path.dart' as p;
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/// 路径工具类 - 获取应用根目录和 bin 目录
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///
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/// 约定：
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/// - Windows 开发模式：`windows/bin` 目录下放置配置和数据文件
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/// - Windows 发布模式：可执行文件同级目录下放置 `bin` 目录
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/// - Linux 开发模式：项目根目录下放置 `bin` 目录
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/// - Linux 发布模式：可执行文件同级目录下放置 `bin` 目录
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class PathUtils {
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static String? _cachedAppRoot;
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/// 获取应用根目录
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static String get appRoot {
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if (_cachedAppRoot != null) {
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return _cachedAppRoot!;
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}
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try {
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final exePath = Platform.resolvedExecutable;
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final exeDir = p.dirname(exePath);
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if (Platform.isWindows) {
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_cachedAppRoot = _resolveWindowsAppRoot(exeDir);
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} else if (Platform.isLinux) {
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_cachedAppRoot = _resolveLinuxAppRoot(exeDir);
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} else {
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// 其他平台暂时按当前工作目录 + bin 处理
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_cachedAppRoot = _resolveGenericAppRoot(exeDir);
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}
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return _cachedAppRoot!;
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} catch (_) {
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// 兜底：使用当前工作目录
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_cachedAppRoot = Directory.current.path;
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return _cachedAppRoot!;
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}
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}
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/// Windows 平台下解析根目录
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static String _resolveWindowsAppRoot(String exeDir) {
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// 开发模式：可执行文件在 build 目录下，需要回溯到 windows 目录
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if (exeDir.contains('build') || exeDir.contains('windows\\build') || exeDir.contains('windows/build')) {
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var currentPath = exeDir;
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while (currentPath.isNotEmpty) {
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final dirName = p.basename(currentPath);
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final parent = p.dirname(currentPath);
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if (dirName == 'windows' &&
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!currentPath.contains('build\\windows') &&
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!currentPath.contains('build/windows')) {
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final binPath = p.join(currentPath, 'bin');
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if (Directory(binPath).existsSync()) {
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return currentPath;
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}
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}
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if (parent == currentPath) break;
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currentPath = parent;
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}
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// 回退到通过当前工作目录查找
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final fromCwd = _findDirWithBinFromCwd('windows');
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if (fromCwd != null) return fromCwd;
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}
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// 发布模式：可执行文件和 bin 文件夹在同一目录
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return exeDir;
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}
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/// Linux 平台下解析根目录
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static String _resolveLinuxAppRoot(String exeDir) {
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// 如果可执行文件目录下有 bin，优先使用（发布模式）
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final binInExeDir = p.join(exeDir, 'bin');
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if (Directory(binInExeDir).existsSync()) {
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return exeDir;
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}
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// 开发模式：从当前工作目录向上查找包含 bin 的目录（项目根目录）
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final fromCwd = _findDirWithBinFromCwd(null);
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if (fromCwd != null) return fromCwd;
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// 再退回到 exeDir
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return exeDir;
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}
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/// 通用平台兜底逻辑：优先找当前工作目录上的 bin
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static String _resolveGenericAppRoot(String exeDir) {
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final fromCwd = _findDirWithBinFromCwd(null);
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if (fromCwd != null) return fromCwd;
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return exeDir;
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}
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/// 从当前工作目录向上查找，直到找到满足条件的目录
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/// 如果 [expectDirName] 不为空，则必须匹配目录名，例如 'windows'
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static String? _findDirWithBinFromCwd(String? expectDirName) {
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var currentPath = Directory.current.path;
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while (currentPath.isNotEmpty) {
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final dirName = p.basename(currentPath);
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final binPath = p.join(currentPath, 'bin');
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if ((expectDirName == null || dirName == expectDirName) &&
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Directory(binPath).existsSync()) {
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return currentPath;
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}
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final parent = p.dirname(currentPath);
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if (parent == currentPath) break;
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currentPath = parent;
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}
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return null;
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}
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/// 获取 bin 目录路径
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static String get binDir {
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final root = appRoot;
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return p.join(root, 'bin');
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}
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/// 获取 bin 目录下的文件路径
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static String binFile(String filename) {
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return p.join(binDir, filename);
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}
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}
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