Added missing file

src/details/os_filesystem.cpp

@@ -0,0 +1,73 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#include <filesystem>
+#include <string>
+
+#include "spdlog/common.h"
+#include "spdlog/details/os.h"
+
+namespace spdlog {
+namespace details {
+namespace os {
+
+bool remove(const filename_t &filename) { 
+    return std::filesystem::remove(filename); 
+}
+
+bool remove_if_exists(const filename_t &filename) {
+    if (path_exists(filename)) {
+        return os::remove(filename);
+    }
+    return false;
+}
+
+// Rename if regular file
+bool rename(const filename_t &filename1, const filename_t &filename2) noexcept {
+    if (!std::filesystem::is_regular_file(filename1)) {
+        return false;
+    }
+    std::error_code ec;
+    std::filesystem::rename(filename1, filename2, ec);
+    return !ec;
+}
+
+// Return true if path exists (file or directory)
+bool path_exists(const filename_t &filename) noexcept { return std::filesystem::exists(filename); }
+
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+filename_t dir_name(const filename_t &path) { return path.parent_path(); }
+
+
+// Create the given directory - and all directories leading to it
+// return true on success or if the directory already exists
+bool create_dir(const filename_t &path) {
+    std::error_code ec;
+    return std::filesystem::create_directories(path, ec) || !ec;
+}
+
+
+// Return file path and its extension:
+//
+// "mylog.txt" => ("mylog", ".txt")
+// "mylog" => ("mylog", "")
+// "mylog." => ("mylog", ".")
+// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
+//
+// the starting dot in filenames is ignored (hidden files):
+//
+// ".mylog" => (".mylog". "")
+// "my_folder/.mylog" => ("my_folder/.mylog", "")
+// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
+std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname) {
+    const auto ext = fname.extension();
+    auto without_ext = filename_t(fname).replace_extension();
+    return std::make_tuple(without_ext, ext);
+}
+}  // namespace os
+}  // namespace details
+}  // namespace spdlog

src/details/os_windows.cpp

@@ -22,7 +22,6 @@
 #include <cstdlib>
 #include <cstring>
 #include <ctime>
-#include <filesystem>
 #include <string>
 
 #include "spdlog/common.h"