按照正则表达式批量删除某个路径下的文件

拼搏现实的明天。 2023-01-17 09:16 121阅读 0赞

#include <iostream>
    #include <cstdlib>
    #include <regex>
    #include <glob.h>
    
    bool rmConfigFile(const std::string &pattern, std::string &files_path)
    {
        std::string files_pattern = files_path + "*";
        glob_t glob_result;
        glob(files_pattern.c_str(), GLOB_TILDE, nullptr, &glob_result);
        std::vector<std::string> files;
        for(unsigned int i = 0;i < glob_result.gl_pathc; ++i){
            files.push_back(string(glob_result.gl_pathv[i]));
        }
        //default return status is true, return false only when the file name matches and delete file fail!
        bool ret = true; 
        std::regex e(pattern.c_str());
        std::smatch sm;
        for (auto &file : files)
        {
            std::regex_match (file, sm, e, std::regex_constants::match_default);
            if(!sm.str(0).empty())  //file name match regex
            {
                if(remove(sm.str(0).c_str())) //delete file failed
                {
                    ret = false;
                    gLogger.logE("Failed deleting surround-view config file (%s)\n", sm.str(0).c_str());
                }
            }      
        }
        globfree(&glob_result);
        gLogger.logV("rmConfigFile return status is (%d)\n", ret);
        return ret;
    }
    
    int main()
    {
    
            std::string cfg_pattern = "(.*)ex(.*)cfg"; // *ex*.cfg
            std::string calib_res = "/home/test/";
            int res_count = 3;
            bool res_ret = false;
            while(!res_ret && res_count > 0)
            {
                if (res_count < 3) {
                   std::cout << "rm failed, try again!" << std::endl;
                }
                res_ret = rmConfigFile(cfg_pattern, calib_res);
                if(res_ret)
                {
                    std::cout << "delete success! " << std:endl;
                    break;
                }
                res_count--;
            }
    
    	return 0;
    }