Merge branch 'Issue-1248' into v1.x

bench/CMakeLists.txt

@@ -24,5 +24,3 @@ target_link_libraries(latency PRIVATE benchmark::benchmark spdlog::spdlog)
 
 add_executable(formatter-bench formatter-bench.cpp)
 target_link_libraries(formatter-bench PRIVATE benchmark::benchmark spdlog::spdlog)
-
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")

bench/latency.cpp

@@ -16,26 +16,6 @@
 #include "spdlog/sinks/null_sink.h"
 #include "spdlog/sinks/rotating_file_sink.h"
 
-void prepare_logdir()
-{
-    spdlog::info("Preparing latency_logs directory..");
-#ifdef _WIN32
-    system("if not exist logs mkdir latency_logs");
-    system("del /F /Q logs\\*");
-#else
-    auto rv = system("mkdir -p latency_logs");
-    if (rv != 0)
-    {
-        throw std::runtime_error("Failed to mkdir -p latency_logs");
-    }
-    rv = system("rm -f latency_logs/*");
-    if (rv != 0)
-    {
-        throw std::runtime_error("Failed to rm -f latency_logs/*");
-    }
-#endif
-}
-
 void bench_c_string(benchmark::State &state, std::shared_ptr<spdlog::logger> logger)
 {
     const char *msg = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus "
@@ -83,8 +63,6 @@ int main(int argc, char *argv[])
     size_t rotating_files = 5;
     int n_threads = benchmark::CPUInfo::Get().num_cpus;
 
-    prepare_logdir();
-
     // disabled loggers
     auto disabled_logger = std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_mt>());
     disabled_logger->set_level(spdlog::level::off);

bench/meson.build

@@ -12,4 +12,3 @@ foreach i : bench_matrix
   benchmark('bench_' + i[0], bench_exe, args: i[2])
 endforeach
 
-run_command(find_program('mkdir'), meson.current_build_dir() + '/logs')

example/CMakeLists.txt

@@ -25,5 +25,3 @@ if(SPDLOG_BUILD_EXAMPLE_HO)
     target_link_libraries(example_header_only PRIVATE spdlog::spdlog_header_only)
 endif()
 
-# Create logs directory
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")

example/meson.build

@@ -1,5 +1,4 @@
 executable('example', 'example.cpp', dependencies: spdlog_dep)
 executable('example_header_only', 'example.cpp', dependencies: spdlog_headeronly_dep)
-run_command(find_program('mkdir'), meson.current_build_dir() + '/logs')
 
 

include/spdlog/details/file_helper-inl.h

@@ -28,28 +28,31 @@ SPDLOG_INLINE file_helper::~file_helper()
 SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate)
 {
     close();
+    filename_ = fname;
     auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : SPDLOG_FILENAME_T("ab");
-    _filename = fname;
+    
-    for (int tries = 0; tries < open_tries; ++tries)
+    for (int tries = 0; tries < open_tries_; ++tries)
     {
+        // create containing folder if not exists already.
+        os::create_dir(os::dir_name(fname));
         if (!os::fopen_s(&fd_, fname, mode))
         {
             return;
         }
 
-        details::os::sleep_for_millis(open_interval);
+        details::os::sleep_for_millis(open_interval_);
     }
 
-    SPDLOG_THROW(spdlog_ex("Failed opening file " + os::filename_to_str(_filename) + " for writing", errno));
+    SPDLOG_THROW(spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing", errno));
 }
 
 SPDLOG_INLINE void file_helper::reopen(bool truncate)
 {
-    if (_filename.empty())
+    if (filename_.empty())
     {
         SPDLOG_THROW(spdlog_ex("Failed re opening file - was not opened before"));
     }
-    open(_filename, truncate);
+    this->open(filename_, truncate);
 }
 
 SPDLOG_INLINE void file_helper::flush()
@@ -72,7 +75,7 @@ SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf)
     auto data = buf.data();
     if (std::fwrite(data, 1, msg_size, fd_) != msg_size)
     {
-        SPDLOG_THROW(spdlog_ex("Failed writing to file " + os::filename_to_str(_filename), errno));
+        SPDLOG_THROW(spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno));
     }
 }
 
@@ -80,19 +83,14 @@ SPDLOG_INLINE size_t file_helper::size() const
 {
     if (fd_ == nullptr)
     {
-        SPDLOG_THROW(spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(_filename)));
+        SPDLOG_THROW(spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_)));
     }
     return os::filesize(fd_);
 }
 
 SPDLOG_INLINE const filename_t &file_helper::filename() const
 {
-    return _filename;
+    return filename_;
-}
-
-SPDLOG_INLINE bool file_helper::file_exists(const filename_t &fname)
-{
-    return os::file_exists(fname);
 }
 
 //
@@ -129,5 +127,6 @@ SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension
     // finally - return a valid base and extension tuple
     return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
 }
+
 } // namespace details
 } // namespace spdlog

include/spdlog/details/file_helper.h

@@ -29,7 +29,6 @@ public:
     void write(const memory_buf_t &buf);
     size_t size() const;
     const filename_t &filename() const;
-    static bool file_exists(const filename_t &fname);
 
     //
     // return file path and its extension:
@@ -47,10 +46,10 @@ public:
     static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
 
 private:
-    const int open_tries = 5;
+    const int open_tries_ = 5;
-    const int open_interval = 10;
+    const int open_interval_ = 10;
     std::FILE *fd_{nullptr};
-    filename_t _filename;
+    filename_t filename_;
 };
 } // namespace details
 } // namespace spdlog

include/spdlog/details/os-inl.h

@@ -16,6 +16,7 @@
 #include <cstring>
 #include <ctime>
 #include <string>
+#include <sstream>
 #include <thread>
 #include <array>
 #include <sys/stat.h>
@@ -42,6 +43,8 @@
 #include <limits>
 #endif
 
+#include <direct.h> // for _mkdir/_wmkdir
+
 #else // unix
 
 #include <fcntl.h>
@@ -91,17 +94,17 @@ SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
 
 #ifdef _WIN32
     std::tm tm;
-    localtime_s(&tm, &time_tt);
+    ::localtime_s(&tm, &time_tt);
 #else
     std::tm tm;
-    localtime_r(&time_tt, &tm);
+    ::localtime_r(&time_tt, &tm);
 #endif
     return tm;
 }
 
 SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT
 {
-    std::time_t now_t = time(nullptr);
+    std::time_t now_t = ::time(nullptr);
     return localtime(now_t);
 }
 
@@ -110,17 +113,17 @@ SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
 
 #ifdef _WIN32
     std::tm tm;
-    gmtime_s(&tm, &time_tt);
+    ::gmtime_s(&tm, &time_tt);
 #else
     std::tm tm;
-    gmtime_r(&time_tt, &tm);
+    ::gmtime_r(&time_tt, &tm);
 #endif
     return tm;
 }
 
 SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT
 {
-    std::time_t now_t = time(nullptr);
+    std::time_t now_t = ::time(nullptr);
     return gmtime(now_t);
 }
 
@@ -129,13 +132,13 @@ SPDLOG_INLINE void prevent_child_fd(FILE *f)
 
 #ifdef _WIN32
 #if !defined(__cplusplus_winrt)
-    auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(_fileno(f)));
+    auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(::_fileno(f)));
     if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
         SPDLOG_THROW(spdlog_ex("SetHandleInformation failed", errno));
 #endif
 #else
-    auto fd = fileno(f);
+    auto fd = ::fileno(f);
-    if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+    if (::fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
     {
         SPDLOG_THROW(spdlog_ex("fcntl with FD_CLOEXEC failed", errno));
     }
@@ -147,12 +150,12 @@ SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename
 {
 #ifdef _WIN32
 #ifdef SPDLOG_WCHAR_FILENAMES
-    *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+    *fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
 #else
-    *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+    *fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
 #endif
 #else // unix
-    *fp = fopen((filename.c_str()), mode.c_str());
+    *fp = ::fopen((filename.c_str()), mode.c_str());
 #endif
 
 #ifdef SPDLOG_PREVENT_CHILD_FD
@@ -167,7 +170,7 @@ SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename
 SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
 {
 #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
-    return _wremove(filename.c_str());
+    return ::_wremove(filename.c_str());
 #else
     return std::remove(filename.c_str());
 #endif
@@ -175,28 +178,28 @@ SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
 
 SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT
 {
-    return file_exists(filename) ? remove(filename) : 0;
+    return path_exists(filename) ? remove(filename) : 0;
 }
 
 SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT
 {
 #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
-    return _wrename(filename1.c_str(), filename2.c_str());
+    return ::_wrename(filename1.c_str(), filename2.c_str());
 #else
     return std::rename(filename1.c_str(), filename2.c_str());
 #endif
 }
 
-// Return true if file exists
+// Return true if path exists (file or directory)
-SPDLOG_INLINE bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT
+SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT
 {
 #ifdef _WIN32
 #ifdef SPDLOG_WCHAR_FILENAMES
-    auto attribs = GetFileAttributesW(filename.c_str());
+    auto attribs = ::GetFileAttributesW(filename.c_str());
 #else
-    auto attribs = GetFileAttributesA(filename.c_str());
+    auto attribs = ::GetFileAttributesA(filename.c_str());
 #endif
-    return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY));
+    return attribs != INVALID_FILE_ATTRIBUTES;
 #else // common linux/unix all have the stat system call
     struct stat buffer;
     return (::stat(filename.c_str(), &buffer) == 0);
@@ -211,16 +214,16 @@ SPDLOG_INLINE size_t filesize(FILE *f)
         SPDLOG_THROW(spdlog_ex("Failed getting file size. fd is null"));
     }
 #if defined(_WIN32) && !defined(__CYGWIN__)
-    int fd = _fileno(f);
+    int fd = ::_fileno(f);
 #if _WIN64 // 64 bits
-    __int64 ret = _filelengthi64(fd);
+    __int64 ret = ::_filelengthi64(fd);
     if (ret >= 0)
     {
         return static_cast<size_t>(ret);
     }
 
 #else // windows 32 bits
-    long ret = _filelength(fd);
+    long ret = ::_filelength(fd);
     if (ret >= 0)
     {
         return static_cast<size_t>(ret);
@@ -228,7 +231,7 @@ SPDLOG_INLINE size_t filesize(FILE *f)
 #endif
 
 #else // unix
-    int fd = fileno(f);
+    int fd = ::fileno(f);
 // 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
 #if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64))
     struct stat64 st;
@@ -255,10 +258,10 @@ SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
 #ifdef _WIN32
 #if _WIN32_WINNT < _WIN32_WINNT_WS08
     TIME_ZONE_INFORMATION tzinfo;
-    auto rv = GetTimeZoneInformation(&tzinfo);
+    auto rv = ::GetTimeZoneInformation(&tzinfo);
 #else
     DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
-    auto rv = GetDynamicTimeZoneInformation(&tzinfo);
+    auto rv = ::GetDynamicTimeZoneInformation(&tzinfo);
 #endif
     if (rv == TIME_ZONE_ID_INVALID)
         SPDLOG_THROW(spdlog::spdlog_ex("Failed getting timezone info. ", errno));
@@ -324,15 +327,15 @@ SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT
 #if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
 #define SYS_gettid __NR_gettid
 #endif
-    return static_cast<size_t>(syscall(SYS_gettid));
+    return static_cast<size_t>(::syscall(SYS_gettid));
 #elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__)
-    return static_cast<size_t>(pthread_getthreadid_np());
+    return static_cast<size_t>(::pthread_getthreadid_np());
 #elif defined(__NetBSD__)
-    return static_cast<size_t>(_lwp_self());
+    return static_cast<size_t>(::_lwp_self());
 #elif defined(__OpenBSD__)
-    return static_cast<size_t>(getthrid());
+    return static_cast<size_t>(::getthrid());
 #elif defined(__sun)
-    return static_cast<size_t>(thr_self());
+    return static_cast<size_t>(::thr_self());
 #elif __APPLE__
     uint64_t tid;
     pthread_threadid_np(nullptr, &tid);
@@ -417,9 +420,9 @@ SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT
 {
 
 #ifdef _WIN32
-    return _isatty(_fileno(file)) != 0;
+    return ::_isatty(_fileno(file)) != 0;
 #else
-    return isatty(fileno(file)) != 0;
+    return ::isatty(fileno(file)) != 0;
 #endif
 }
 
@@ -460,6 +463,77 @@ SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
 }
 #endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
 
+// return true on success
+SPDLOG_INLINE bool mkdir_(const filename_t &path)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+    return ::_wmkdir(path.c_str()) == 0;
+#else
+    return ::_mkdir(path.c_str()) == 0;
+#endif
+#else
+    return ::mkdir(path.c_str(), mode_t(0755)) == 0;
+#endif
+}
+
+// create the given directory - and all directories leading to it
+// return true on success or if the directory already exists
+SPDLOG_INLINE bool create_dir(filename_t path)
+{
+    if (path_exists(path))
+    {
+        return true;
+    }
+
+    if(path.empty())
+    {
+        return false;
+    }
+
+#ifdef _WIN32
+    // support forward slash in windows
+    std::replace(path.begin(), path.end(), '/', folder_sep);
+#endif
+
+    size_t search_offset = 0;
+    do
+    {
+        fmt::string_view t;
+        auto token_pos = path.find(folder_sep, search_offset);
+        // treat the entire path as a folder if no folder separator not found
+        if (token_pos == filename_t::npos)
+        {
+            token_pos = path.size();
+        }
+
+        auto subdir = path.substr(0, token_pos);
+
+        if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir))
+        {
+            return false; // return error if failed creating dir
+        }
+        search_offset = token_pos + 1;
+    } while (search_offset < path.size());
+
+    return true;
+}
+
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+SPDLOG_INLINE filename_t dir_name(filename_t path)
+{
+#ifdef _WIN32
+    // support forward slash in windows
+    std::replace(path.begin(), path.end(), '/', folder_sep);
+#endif
+    auto pos = path.find_last_of(folder_sep);
+    return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
+}
+
 } // namespace os
 } // namespace details
 } // namespace spdlog

include/spdlog/details/os.h

@@ -33,7 +33,7 @@ SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
 
 // folder separator
 #ifdef _WIN32
-const char folder_sep = '\\';
+static const char folder_sep = '\\';
 #else
 SPDLOG_CONSTEXPR static const char folder_sep = '/';
 #endif
@@ -53,7 +53,7 @@ int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
 int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT;
 
 // Return if file exists.
-bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
+bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
 
 // Return file size according to open FILE* object
 size_t filesize(FILE *f);
@@ -89,6 +89,17 @@ bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
 void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
 #endif
 
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+filename_t dir_name(filename_t path);
+
+// Create a dir from the given path.
+// Return true if succeeded or if this dir already exists.
+bool create_dir(filename_t path);
+
 } // namespace os
 } // namespace details
 } // namespace spdlog

include/spdlog/sinks/rotating_file_sink-inl.h

@@ -88,11 +88,12 @@ template<typename Mutex>
 SPDLOG_INLINE void rotating_file_sink<Mutex>::rotate_()
 {
     using details::os::filename_to_str;
+    using details::os::path_exists;
     file_helper_.close();
     for (auto i = max_files_; i > 0; --i)
     {
         filename_t src = calc_filename(base_filename_, i - 1);
-        if (!details::file_helper::file_exists(src))
+        if (!path_exists(src))
         {
             continue;
         }

tests/CMakeLists.txt

@@ -25,7 +25,8 @@ set(SPDLOG_UTESTS_SOURCES
     test_fmt_helper.cpp
   	test_stdout_api.cpp
     test_dup_filter.cpp
-	test_backtrace.cpp)
+	test_backtrace.cpp
+	test_create_dir.cpp)
 
 if(NOT SPDLOG_NO_EXCEPTIONS)
 	list(APPEND SPDLOG_UTESTS_SOURCES test_errors.cpp)
@@ -35,7 +36,6 @@ if(systemd_FOUND)
 	list(APPEND SPDLOG_UTESTS_SOURCES test_systemd.cpp)
 endif()
 
-file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")
 enable_testing()
 
 function(spdlog_prepare_test test_target spdlog_lib)

tests/meson.build

@@ -35,7 +35,6 @@ if systemd_dep.found()
   global_test_deps += systemd_dep
 endif
 
-run_command('mkdir', 'logs')
 # --------------------------------------
 # ---   Build the test executables   ---
 # --------------------------------------
@@ -49,5 +48,3 @@ foreach i : test_matrix
   test_exe = executable(i[0], test_sources, dependencies: global_test_deps + [i[1]])
   test('test_' + i[0], test_exe)
 endforeach
-
-run_command(find_program('mkdir'), meson.current_build_dir() + '/logs')

tests/test_async.cpp

@@ -157,7 +157,7 @@ TEST_CASE("to_file", "[async]")
     prepare_logdir();
     size_t messages = 1024;
     size_t tp_threads = 1;
-    std::string filename = "logs/async_test.log";
+    std::string filename = "test_logs/async_test.log";
     {
         auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>(filename, true);
         auto tp = std::make_shared<spdlog::details::thread_pool>(messages, tp_threads);
@@ -179,7 +179,7 @@ TEST_CASE("to_file multi-workers", "[async]")
     prepare_logdir();
     size_t messages = 1024 * 10;
     size_t tp_threads = 10;
-    std::string filename = "logs/async_test.log";
+    std::string filename = "test_logs/async_test.log";
     {
         auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>(filename, true);
         auto tp = std::make_shared<spdlog::details::thread_pool>(messages, tp_threads);

tests/test_create_dir.cpp

@@ -0,0 +1,80 @@
+/*
+ * This content is released under the MIT License as specified in https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
+ */
+#include "includes.h"
+
+using spdlog::details::os::create_dir;
+using spdlog::details::os::path_exists;
+
+bool try_create_dir(const char *path, const char *normalized_path)
+{
+    auto rv = create_dir(path);
+    REQUIRE(rv == true);
+    return path_exists(normalized_path);
+}
+
+TEST_CASE("create_dir", "[create_dir]")
+{
+    prepare_logdir();
+
+    REQUIRE(try_create_dir("test_logs/dir1/dir1", "test_logs/dir1/dir1"));
+    REQUIRE(try_create_dir("test_logs/dir1/dir1", "test_logs/dir1/dir1")); // test existing
+    REQUIRE(try_create_dir("test_logs/dir1///dir2//", "test_logs/dir1/dir2"));
+    REQUIRE(try_create_dir("./test_logs/dir1/dir3", "test_logs/dir1/dir3"));
+    REQUIRE(try_create_dir("test_logs/../test_logs/dir1/dir4", "test_logs/dir1/dir4"));
+
+#ifdef WIN32
+    // test backslash folder separator
+    REQUIRE(try_create_dir("test_logs\\dir1\\dir222", "test_logs\\dir1\\dir222"));
+    REQUIRE(try_create_dir("test_logs\\dir1\\dir223\\", "test_logs\\dir1\\dir223\\"));
+    REQUIRE(try_create_dir(".\\test_logs\\dir1\\dir2\\dir99\\..\\dir23", "test_logs\\dir1\\dir2\\dir23"));
+    REQUIRE(try_create_dir("test_logs\\..\\test_logs\\dir1\\dir5", "test_logs\\dir1\\dir5"));
+#endif
+}
+
+TEST_CASE("create_invalid_dir", "[create_dir]")
+{
+    REQUIRE(create_dir("") == false);
+    REQUIRE(create_dir(spdlog::filename_t{}) == false);
+#ifdef __linux__
+    REQUIRE(create_dir("/proc/spdlog-utest") == false);
+#endif
+}
+
+TEST_CASE("dir_name", "[create_dir]")
+{
+    using spdlog::details::os::dir_name;
+    REQUIRE(dir_name("").empty());
+    REQUIRE(dir_name("dir").empty());
+
+#ifdef WIN32
+    REQUIRE(dir_name(R"(dir\)") == "dir");
+    REQUIRE(dir_name(R"(dir\\\)") == R"(dir\\)");
+    REQUIRE(dir_name(R"(dir\file)") == "dir");
+    REQUIRE(dir_name(R"(dir/file)") == "dir");
+    REQUIRE(dir_name(R"(dir\file.txt)") == "dir");
+    REQUIRE(dir_name(R"(dir/file)") == "dir");
+    REQUIRE(dir_name(R"(dir\file.txt\)") == R"(dir\file.txt)");
+    REQUIRE(dir_name(R"(dir/file.txt/)") == R"(dir\file.txt)");
+    REQUIRE(dir_name(R"(\dir\file.txt)") == R"(\dir)");
+    REQUIRE(dir_name(R"(/dir/file.txt)") == R"(\dir)");
+    REQUIRE(dir_name(R"(\\dir\file.txt)") == R"(\\dir)");
+    REQUIRE(dir_name(R"(//dir/file.txt)") == R"(\\dir)");
+    REQUIRE(dir_name(R"(..\file.txt)") == "..");
+    REQUIRE(dir_name(R"(../file.txt)") == "..");
+    REQUIRE(dir_name(R"(.\file.txt)") == ".");
+    REQUIRE(dir_name(R"(./file.txt)") == ".");
+    REQUIRE(dir_name(R"(c:\\a\b\c\d\file.txt)") == R"(c:\\a\b\c\d)");
+    REQUIRE(dir_name(R"(c://a/b/c/d/file.txt)") == R"(c:\\a\b\c\d)");
+#else
+    REQUIRE(dir_name("dir/") == "dir");
+    REQUIRE(dir_name("dir///") == "dir//");
+    REQUIRE(dir_name("dir/file") == "dir");
+    REQUIRE(dir_name("dir/file.txt") == "dir");
+    REQUIRE(dir_name("dir/file.txt/") == "dir/file.txt");
+    REQUIRE(dir_name("/dir/file.txt") == "/dir");
+    REQUIRE(dir_name("//dir/file.txt") == "//dir");
+    REQUIRE(dir_name("../file.txt") == "..");
+    REQUIRE(dir_name("./file.txt") == ".");
+#endif
+}

tests/test_daily_logger.cpp

@@ -10,7 +10,7 @@ TEST_CASE("daily_logger with dateonly calculator", "[daily_logger]")
     prepare_logdir();
 
     // calculate filename (time based)
-    std::string basename = "logs/daily_dateonly";
+    std::string basename = "test_logs/daily_dateonly";
     std::tm tm = spdlog::details::os::localtime();
     spdlog::memory_buf_t w;
     fmt::format_to(w, "{}_{:04d}-{:02d}-{:02d}", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
@@ -44,7 +44,7 @@ TEST_CASE("daily_logger with custom calculator", "[daily_logger]")
     prepare_logdir();
 
     // calculate filename (time based)
-    std::string basename = "logs/daily_dateonly";
+    std::string basename = "test_logs/daily_dateonly";
     std::tm tm = spdlog::details::os::localtime();
     spdlog::memory_buf_t w;
     fmt::format_to(w, "{}{:04d}{:02d}{:02d}", basename, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
@@ -119,7 +119,7 @@ static void test_rotate(int days_to_run, uint16_t max_days, uint16_t expected_n_
 
     prepare_logdir();
 
-    std::string basename = "logs/daily_rotate.txt";
+    std::string basename = "test_logs/daily_rotate.txt";
     daily_file_sink_st sink{basename, 2, 30, true, max_days};
 
     // simulate messages with 24 intervals
@@ -130,7 +130,7 @@ static void test_rotate(int days_to_run, uint16_t max_days, uint16_t expected_n_
         sink.log(create_msg(offset));
     }
 
-    REQUIRE(count_files("logs") == static_cast<size_t>(expected_n_files));
+    REQUIRE(count_files("test_logs") == static_cast<size_t>(expected_n_files));
 }
 
 TEST_CASE("daily_logger rotate", "[daily_file_sink]")

tests/test_errors.cpp

@@ -26,7 +26,7 @@ protected:
 TEST_CASE("default_error_handler", "[errors]]")
 {
     prepare_logdir();
-    std::string filename = "logs/simple_log.txt";
+    std::string filename = "test_logs/simple_log.txt";
 
     auto logger = spdlog::create<spdlog::sinks::basic_file_sink_mt>("test-error", filename, true);
     logger->set_pattern("%v");
@@ -43,7 +43,7 @@ struct custom_ex
 TEST_CASE("custom_error_handler", "[errors]]")
 {
     prepare_logdir();
-    std::string filename = "logs/simple_log.txt";
+    std::string filename = "test_logs/simple_log.txt";
     auto logger = spdlog::create<spdlog::sinks::basic_file_sink_mt>("logger", filename, true);
     logger->flush_on(spdlog::level::info);
     logger->set_error_handler([=](const std::string &) { throw custom_ex(); });
@@ -75,15 +75,15 @@ TEST_CASE("async_error_handler", "[errors]]")
     prepare_logdir();
     std::string err_msg("log failed with some msg");
 
-    std::string filename = "logs/simple_async_log.txt";
+    std::string filename = "test_logs/simple_async_log.txt";
     {
         spdlog::init_thread_pool(128, 1);
         auto logger = spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("logger", filename, true);
         logger->set_error_handler([=](const std::string &) {
-            std::ofstream ofs("logs/custom_err.txt");
+            std::ofstream ofs("test_logs/custom_err.txt");
             if (!ofs)
             {
-                throw std::runtime_error("Failed open logs/custom_err.txt");
+                throw std::runtime_error("Failed open test_logs/custom_err.txt");
             }
             ofs << err_msg;
         });
@@ -94,7 +94,7 @@ TEST_CASE("async_error_handler", "[errors]]")
     }
     spdlog::init_thread_pool(128, 1);
     REQUIRE(count_lines(filename) == 2);
-    REQUIRE(file_contents("logs/custom_err.txt") == err_msg);
+    REQUIRE(file_contents("test_logs/custom_err.txt") == err_msg);
 }
 
 // Make sure async error handler is executed
@@ -103,12 +103,13 @@ TEST_CASE("async_error_handler2", "[errors]]")
     prepare_logdir();
     std::string err_msg("This is async handler error message");
     {
+        spdlog::details::os::create_dir("test_logs");
         spdlog::init_thread_pool(128, 1);
         auto logger = spdlog::create_async<failing_sink>("failed_logger");
         logger->set_error_handler([=](const std::string &) {
-            std::ofstream ofs("logs/custom_err2.txt");
+            std::ofstream ofs("test_logs/custom_err2.txt");
             if (!ofs)
-                throw std::runtime_error("Failed open logs/custom_err2.txt");
+                throw std::runtime_error("Failed open test_logs/custom_err2.txt");
             ofs << err_msg;
         });
         logger->info("Hello failure");
@@ -116,5 +117,5 @@ TEST_CASE("async_error_handler2", "[errors]]")
     }
 
     spdlog::init_thread_pool(128, 1);
-    REQUIRE(file_contents("logs/custom_err2.txt") == err_msg);
+    REQUIRE(file_contents("test_logs/custom_err2.txt") == err_msg);
 }

tests/test_file_helper.cpp

@@ -6,7 +6,7 @@
 using spdlog::details::file_helper;
 using spdlog::details::log_msg;
 
-static const std::string target_filename = "logs/file_helper_test.txt";
+static const std::string target_filename = "test_logs/file_helper_test.txt";
 
 static void write_with_helper(file_helper &helper, size_t howmany)
 {
@@ -38,15 +38,6 @@ TEST_CASE("file_helper_size", "[file_helper::size()]]")
     REQUIRE(get_filesize(target_filename) == expected_size);
 }
 
-TEST_CASE("file_helper_exists", "[file_helper::file_exists()]]")
-{
-    prepare_logdir();
-    REQUIRE(!file_helper::file_exists(target_filename));
-    file_helper helper;
-    helper.open(target_filename);
-    REQUIRE(file_helper::file_exists(target_filename));
-}
-
 TEST_CASE("file_helper_reopen", "[file_helper::reopen()]]")
 {
     prepare_logdir();

tests/test_file_logging.cpp

@@ -6,7 +6,7 @@
 TEST_CASE("simple_file_logger", "[simple_logger]]")
 {
     prepare_logdir();
-    std::string filename = "logs/simple_log";
+    std::string filename = "test_logs/simple_log";
 
     auto logger = spdlog::create<spdlog::sinks::basic_file_sink_mt>("logger", filename);
     logger->set_pattern("%v");
@@ -22,7 +22,7 @@ TEST_CASE("simple_file_logger", "[simple_logger]]")
 TEST_CASE("flush_on", "[flush_on]]")
 {
     prepare_logdir();
-    std::string filename = "logs/simple_log";
+    std::string filename = "test_logs/simple_log";
 
     auto logger = spdlog::create<spdlog::sinks::basic_file_sink_mt>("logger", filename);
     logger->set_pattern("%v");
@@ -42,7 +42,7 @@ TEST_CASE("rotating_file_logger1", "[rotating_logger]]")
 {
     prepare_logdir();
     size_t max_size = 1024 * 10;
-    std::string basename = "logs/rotating_log";
+    std::string basename = "test_logs/rotating_log";
     auto logger = spdlog::rotating_logger_mt("logger", basename, max_size, 0);
 
     for (int i = 0; i < 10; ++i)
@@ -59,7 +59,7 @@ TEST_CASE("rotating_file_logger2", "[rotating_logger]]")
 {
     prepare_logdir();
     size_t max_size = 1024 * 10;
-    std::string basename = "logs/rotating_log";
+    std::string basename = "test_logs/rotating_log";
 
     {
         // make an initial logger to create the first output file

tests/test_macros.cpp

@@ -12,7 +12,7 @@ TEST_CASE("debug and trace w/o format string", "[macros]]")
 {
 
     prepare_logdir();
-    std::string filename = "logs/simple_log";
+    std::string filename = "test_logs/simple_log";
 
     auto logger = spdlog::create<spdlog::sinks::basic_file_sink_mt>("logger", filename);
     logger->set_pattern("%v");

tests/utils.cpp

@@ -9,18 +9,12 @@ void prepare_logdir()
 {
     spdlog::drop_all();
 #ifdef _WIN32
-    system("if not exist logs mkdir logs");
+    system("rmdir /S /Q test_logs");
-    system("del /F /Q logs\\*");
 #else
-    auto rv = system("mkdir -p logs");
+    auto rv = system("rm -rf test_logs");
     if (rv != 0)
     {
-        throw std::runtime_error("Failed to mkdir -p logs");
+        throw std::runtime_error("Failed to rm -rf test_logs");
-    }
-    rv = system("rm -f logs/*");
-    if (rv != 0)
-    {
-        throw std::runtime_error("Failed to rm -f logs/*");
     }
 #endif
 }