in-tree spdlog (#602)

move spdlog into the tree to remove dependency on vcpkg::spdlog, to allow diverging from the official version and evolve it to fit better with OTLP logging requirements

1 files changed, 37 insertions, 0 deletions

diff --git a/thirdparty/spdlog/tests/test_custom_callbacks.cpp b/thirdparty/spdlog/tests/test_custom_callbacks.cpp
new file mode 100644
index 000000000..f14572115
--- /dev/null
+++ b/thirdparty/spdlog/tests/test_custom_callbacks.cpp
@@ -0,0 +1,37 @@
+/*
+ * This content is released under the MIT License as specified in
+ * https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
+ */
+#include "includes.h"
+#include "test_sink.h"
+#include "spdlog/sinks/callback_sink.h"
+#include "spdlog/async.h"
+#include "spdlog/common.h"
+
+TEST_CASE("custom_callback_logger", "[custom_callback_logger]") {
+    std::vector<std::string> lines;
+    spdlog::pattern_formatter formatter;
+    auto callback_logger =
+        std::make_shared<spdlog::sinks::callback_sink_st>([&](const spdlog::details::log_msg &msg) {
+            spdlog::memory_buf_t formatted;
+            formatter.format(msg, formatted);
+            auto eol_len = strlen(spdlog::details::os::default_eol);
+            using diff_t =
+                typename std::iterator_traits<decltype(formatted.end())>::difference_type;
+            lines.emplace_back(formatted.begin(), formatted.end() - static_cast<diff_t>(eol_len));
+        });
+    std::shared_ptr<spdlog::sinks::test_sink_st> test_sink(new spdlog::sinks::test_sink_st);
+
+    spdlog::logger logger("test-callback", {callback_logger, test_sink});
+
+    logger.info("test message 1");
+    logger.info("test message 2");
+    logger.info("test message 3");
+
+    std::vector<std::string> ref_lines = test_sink->lines();
+
+    REQUIRE(lines[0] == ref_lines[0]);
+    REQUIRE(lines[1] == ref_lines[1]);
+    REQUIRE(lines[2] == ref_lines[2]);
+    spdlog::drop_all();
+}