| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125 |
- // Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
- //
- // 本项目主要遵循 MIT 许可证和 Apache 许可证(版本 2.0)进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
- //
- // 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动!任何基于本项目二次开发而产生的一切法律纠纷和责任,我们不承担任何责任!
- namespace Admin.NET.Core;
- /// <summary>
- /// 文件帮助类
- /// </summary>
- public static class FileHelper
- {
- /// <summary>
- /// 尝试删除文件/目录
- /// </summary>
- /// <param name="path"></param>
- /// <returns></returns>
- public static bool TryDelete(string path)
- {
- try
- {
- if (string.IsNullOrEmpty(path)) return false;
- if (Directory.Exists(path)) Directory.Delete(path, recursive: true);
- else File.Delete(path);
- return true;
- }
- catch (Exception)
- {
- // ignored
- return false;
- }
- }
- /// <summary>
- /// 复制目录
- /// </summary>
- /// <param name="sourceDir"></param>
- /// <param name="destinationDir"></param>
- /// <param name="overwrite"></param>
- public static void CopyDirectory(string sourceDir, string destinationDir, bool overwrite = false)
- {
- // 检查源目录是否存在
- if (!Directory.Exists(sourceDir)) throw new DirectoryNotFoundException("Source directory not found: " + sourceDir);
- // 如果目标目录不存在,则创建它
- if (!Directory.Exists(destinationDir)) Directory.CreateDirectory(destinationDir!);
- // 获取源目录下的所有文件并复制它们
- foreach (string file in Directory.GetFiles(sourceDir))
- {
- string name = Path.GetFileName(file);
- string dest = Path.Combine(destinationDir, name);
- File.Copy(file, dest, overwrite);
- }
- // 递归复制所有子目录
- foreach (string directory in Directory.GetDirectories(sourceDir))
- {
- string name = Path.GetFileName(directory);
- string dest = Path.Combine(destinationDir, name);
- CopyDirectory(directory, dest, overwrite);
- }
- }
- /// <summary>
- /// 在文件倒数第lastIndex个identifier前插入内容(备份原文件)
- /// </summary>
- /// <param name="filePath">文件路径</param>
- /// <param name="insertContent">要插入的内容</param>
- /// <param name="identifier">标识符号</param>
- /// <param name="lastIndex">倒数第几个标识符</param>
- /// <param name="createBackup">是否创建备份文件</param>
- public static async Task InsertsStringAtSpecifiedLocationInFile(string filePath, string insertContent, char identifier, int lastIndex, bool createBackup = false)
- {
- // 参数校验
- if (lastIndex < 1) throw new ArgumentOutOfRangeException(nameof(lastIndex));
- if (identifier == 0) throw new ArgumentException("标识符不能为空字符");
- if (!File.Exists(filePath))
- throw new FileNotFoundException("目标文件不存在", filePath);
- // 创建备份文件
- if (createBackup)
- {
- string backupPath = $"{filePath}.bak_{DateTime.Now:yyyyMMddHHmmss}";
- File.Copy(filePath, backupPath, true);
- }
- using var reader = new StreamReader(filePath, Encoding.UTF8);
- var content = await reader.ReadToEndAsync();
- reader.Close();
- // 逆向查找算法
- int index = content.LastIndexOf(identifier);
- if (index == -1)
- {
- throw new ArgumentException($"文件中未包含{identifier}");
- }
- int resIndex = content.LastIndexOf(identifier, index - lastIndex);
- if (resIndex == -1)
- {
- throw new ArgumentException($"文件中{identifier}不足{lastIndex}个");
- }
- StringBuilder sb = new StringBuilder(content);
- sb = sb.Insert(resIndex, insertContent);
- await WriteToFileAsync(filePath, sb);
- }
- /// <summary>
- /// 写入文件内容
- /// </summary>
- /// <param name="filePath"></param>
- /// <param name="sb"></param>
- public static async Task WriteToFileAsync(string filePath, StringBuilder sb)
- {
- Console.ForegroundColor = ConsoleColor.DarkGreen;
- await using var writer = new StreamWriter(filePath, false, new UTF8Encoding(false)); // 无BOM
- await writer.WriteAsync(sb.ToString());
- writer.Close();
- Console.WriteLine($"文件【{filePath}】写入完成");
- Console.ResetColor();
- }
- }
|