改用boost的filesystem

CMakeLists.txt

@@ -1,6 +1,8 @@
-cmake_minimum_required(VERSION 3.25)
+cmake_minimum_required(VERSION 3.5)
 project(ajx_find_files)
 
 set(CMAKE_CXX_STANDARD 17)
 
 add_executable(ajx_find_files main.cpp)
+
+target_link_libraries(ajx_find_files boost_system boost_filesystem)

main.cpp

@@ -1,24 +1,25 @@
 #include <iostream>
-#include <filesystem>
+#include <boost/filesystem.hpp>
 #include <vector>
 #include <string>
 
 #define   K_VISION_DIR   "/hard/k_vision"
 #define   AI_VISION_DIR  "/hard/ai_vision"
 
+namespace fs = boost::filesystem;
 
 std::vector<std::string> get_file_names(const std::string& strDir)
 {
     std::vector<std::string> vs;
-    std::filesystem::path path(strDir);
-    if (!std::filesystem::exists(path))
+    fs::path path(strDir);
+    if (!fs::exists(path))
     {
         return vs;
     }
-    std::filesystem::directory_iterator dir_iter(path);
+    fs::directory_iterator dir_iter(path);
     for (auto it:dir_iter)
     {
-        if (it.is_regular_file() && it.exists())
+        if (fs::is_regular_file(it) && fs::exists(it))
         {
             vs.push_back(it.path().filename().string());
         }
@@ -29,15 +30,15 @@ std::vector<std::string> get_file_names(const std::string& strDir)
 std::vector<std::string> get_file_paths(const std::string& strDir)
 {
     std::vector<std::string> vs;
-    std::filesystem::path path(strDir);
-    if (!std::filesystem::exists(path))
+    fs::path path(strDir);
+    if (!fs::exists(path))
     {
         return vs;
     }
-    std::filesystem::directory_iterator dir_iter(path);
+    fs::directory_iterator dir_iter(path);
     for (auto it:dir_iter)
     {
-        if (it.is_regular_file() && it.exists())
+        if (fs::is_regular_file(it) && fs::exists(it))
         {
             vs.push_back(it.path().string());
         }
@@ -129,7 +130,7 @@ int main(int argc, char* argv[]) {
     char szSaveDir[255];
     snprintf(szSaveDir, sizeof (szSaveDir), "%s/%d%02d%02d/",
              AI_VISION_DIR, tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
-    std::filesystem::create_directories(szSaveDir);
+    fs::create_directories(szSaveDir);
     auto vec_file_name = get_file_names(K_VISION_DIR);
     if (vec_file_name.empty())
     {
@@ -162,14 +163,11 @@ int main(int argc, char* argv[]) {
     int i = 0;
     for (auto it:vec_matched_path)
     {
-        std::filesystem::path path(it);
+        fs::path path(it);
         auto strName = path.filename().string();
         std::string strPath = std::string(szSaveDir) + "/" + strName;
-        bool bRet = std::filesystem::copy_file(it,strName,std::filesystem::copy_options::overwrite_existing);
-        if (bRet)
-        {
-            ++i;
-        }
+        fs::copy_file(it,strName,fs::copy_option::overwrite_if_exists);
+        ++i;
         if (i % 50 == 0)
         {
             std::cout << "info: copy progress " << i << "/" << vec_matched_path.size() << std::endl;