Expand ringbuffer sink tests

The use of "final" differed between ansicolor_sink and wincolor_sink,
resulting in the code inheriting from std{err,out}_color_sink classes,
which are defined as one or the other on different platforms, being able
to override most of the functions under non-Windows platforms, but not
under Windows.

This seems gratuitously inconsistent, so just remove all "final"
keywords from both classes, especially because there doesn't seem any
good reason to use it and the other sink classes don't use it (with the
exception of base_sink, which is special).

This also incidentally fixes using "final override" in most places but
"override final" in wincolor_sink.h.

Fixes #3429.

.github/workflows/coverity_scan.yml

@@ -1,6 +1,6 @@
 name: coverity-linux
 
-on: [pull_request]
+on: [push, pull_request]
 
 permissions:
   contents: read
@@ -35,6 +35,7 @@ jobs:
         run: |
           tar czf cov-int.tgz cov-int
           response=$(curl --silent --show-error --fail \
+            --form email="${{ secrets.EMAIL }}" \
             --form token="${{ secrets.COVERITY_TOKEN }}" \
             --form file=@cov-int.tgz \
             --form version="GitHub PR #${{ github.event.pull_request.number }}" \

include/spdlog/cfg/helpers-inl.h

@@ -71,7 +71,7 @@ inline std::unordered_map<std::string, std::string> extract_key_vals_(const std:
 }
 
 SPDLOG_INLINE void load_levels(const std::string &input) {
-    if (input.empty() || input.size() > 512) {
+    if (input.empty() || input.size() >= 32768) {
         return;
     }
 

include/spdlog/details/os-inl.h

@@ -563,21 +563,21 @@ SPDLOG_INLINE filename_t dir_name(const filename_t &path) {
     return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
 }
 
+#ifdef _MSC_VER
+    #pragma warning(push)
+    #pragma warning(disable : 4996)
+#endif  // _MSC_VER
 std::string SPDLOG_INLINE getenv(const char *field) {
-#if defined(_MSC_VER)
-    #if defined(__cplusplus_winrt)
+#if defined(_MSC_VER) && defined(__cplusplus_winrt)
     return std::string{};  // not supported under uwp
-    #else
-    size_t len = 0;
-    char buf[128];
-    bool ok = ::getenv_s(&len, buf, sizeof(buf), field) == 0;
-    return ok ? buf : std::string{};
-    #endif
-#else  // revert to getenv
-    char *buf = ::getenv(field);
+#else
+    char *buf = std::getenv(field);
     return buf ? buf : std::string{};
 #endif
 }
+#ifdef _MSC_VER
+    #pragma warning(pop)
+#endif  // _MSC_VER
 
 // Do fsync by FILE handlerpointer
 // Return true on success

include/spdlog/fmt/fmt.h

@@ -20,11 +20,7 @@
     #ifndef FMT_USE_WINDOWS_H
         #define FMT_USE_WINDOWS_H 0
     #endif
-
-    #include <spdlog/fmt/bundled/base.h>
     #include <spdlog/fmt/bundled/format.h>
-
 #else  // SPDLOG_FMT_EXTERNAL is defined - use external fmtlib
-    #include <fmt/base.h>
     #include <fmt/format.h>
 #endif

include/spdlog/sinks/ansicolor_sink.h

@@ -40,7 +40,7 @@ public:
 
     void log(const details::log_msg &msg) override;
     void flush() override;
-    void set_pattern(const std::string &pattern) final override;
+    void set_pattern(const std::string &pattern) override;
     void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override;
 
     // Formatting codes

include/spdlog/sinks/ringbuffer_sink.h

@@ -21,7 +21,11 @@ template <typename Mutex>
 class ringbuffer_sink final : public base_sink<Mutex> {
 public:
     explicit ringbuffer_sink(size_t n_items)
-        : q_{n_items} {}
+        : q_{n_items} {
+        if (n_items == 0) {
+            throw_spdlog_ex("ringbuffer_sink: n_items cannot be zero");
+        }
+    }
 
     std::vector<details::log_msg_buffer> last_raw(size_t lim = 0) {
         std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);

include/spdlog/sinks/wincolor_sink.h

@@ -31,10 +31,10 @@ public:
 
     // change the color for the given level
     void set_color(level::level_enum level, std::uint16_t color);
-    void log(const details::log_msg &msg) final override;
-    void flush() final override;
-    void set_pattern(const std::string &pattern) override final;
-    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override final;
+    void log(const details::log_msg &msg) override;
+    void flush() override;
+    void set_pattern(const std::string &pattern) override;
+    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override;
     void set_color_mode(color_mode mode);
 
 protected:

tests/CMakeLists.txt

@@ -49,7 +49,8 @@ set(SPDLOG_UTESTS_SOURCES
     test_time_point.cpp
     test_stopwatch.cpp
     test_circular_q.cpp
-    test_bin_to_hex.cpp)
+    test_bin_to_hex.cpp
+    test_ringbuffer.cpp)
 
 if(NOT SPDLOG_NO_EXCEPTIONS)
     list(APPEND SPDLOG_UTESTS_SOURCES test_errors.cpp)

tests/test_ringbuffer.cpp

@@ -0,0 +1,50 @@
+#include "includes.h"
+#include "spdlog/sinks/ringbuffer_sink.h"
+
+TEST_CASE("ringbuffer invalid size", "[ringbuffer]") {
+    REQUIRE_THROWS_AS(spdlog::sinks::ringbuffer_sink_mt(0), spdlog::spdlog_ex);
+}
+
+TEST_CASE("ringbuffer stores formatted messages", "[ringbuffer]") {
+    spdlog::sinks::ringbuffer_sink_st sink(3);
+    sink.set_pattern("%v");
+
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "msg1"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "msg2"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "msg3"});
+
+    auto formatted = sink.last_formatted();
+    REQUIRE(formatted.size() == 3);
+    REQUIRE(formatted[0] == "msg1");
+    REQUIRE(formatted[1] == "msg2");
+    REQUIRE(formatted[2] == "msg3");
+}
+
+TEST_CASE("ringbuffer overrun keeps last items", "[ringbuffer]") {
+    spdlog::sinks::ringbuffer_sink_st sink(2);
+    sink.set_pattern("%v");
+
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "first"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "second"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "third"});
+
+    auto formatted = sink.last_formatted();
+    REQUIRE(formatted.size() == 2);
+    REQUIRE(formatted[0] == "second");
+    REQUIRE(formatted[1] == "third");
+}
+
+TEST_CASE("ringbuffer retrieval limit", "[ringbuffer]") {
+    spdlog::sinks::ringbuffer_sink_st sink(3);
+    sink.set_pattern("%v");
+
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "A"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "B"});
+    sink.log(spdlog::details::log_msg{"test", spdlog::level::info, "C"});
+
+    auto formatted = sink.last_formatted(2);
+    REQUIRE(formatted.size() == 2);
+    REQUIRE(formatted[0] == "B");
+    REQUIRE(formatted[1] == "C");
+}
+