Add a minimal binary to generate compile_commands.json file

clang-tidy needs compile_commands.json to generate a set of source files
to parse.  tidy-base is not built but is used as a source file in which
included headers can be parsed.  Without this process, clang-tidy will
process many other source files (e.g. doctest.hpp) that we do not want
to worry about.

Signed-off-by: Sean Robinson <sean.robinson@scottsdalecc.edu>

test/CMakeLists.txt

@@ -57,3 +57,10 @@ set_property(TARGET ARGPARSE PROPERTY CXX_STANDARD 17)
 
 # Set ${PROJECT_NAME} as the startup project
 set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT ARGPARSE)
+
+file(GLOB ARGPARSE_LINT_SOURCES
+    tidy-base.cpp
+)
+ADD_EXECUTABLE(ARGPARSE_LINT ${ARGPARSE_LINT_SOURCES})
+set_target_properties(ARGPARSE_LINT PROPERTIES OUTPUT_NAME tidy-base)
+set_property(TARGET ARGPARSE_LINT PROPERTY CXX_STANDARD 17)

test/tidy-base.cpp

@@ -0,0 +1,4 @@
+
+#include "argparse/argparse.hpp"
+
+int main(int argc, const char* argv[]) {}