loader_test: Adjust runtime manifest generation so it works and produces a valid manifest.

This combined with earlier changes lets you run list against it.

Author: rpavlik

src/scripts/generate_runtime_manifest.py

@@ -45,6 +45,19 @@ def main(argv):
         elif opt in ("-b", "--bad"):
             generate_badjson_jsons = True
 
+    file_text  = '{\n'
+    file_text += '    "file_format_version": "%s",\n' % cur_runtime_json_version
+    file_text += '    "runtime": {\n'
+    file_text += '        "library_path": "%s",\n' % library_location
+    file_text += '        "functions": {\n'
+    file_text += '           "xrNegotiateLoaderRuntimeInterface":\n'
+    file_text += '               "xrNegotiateLoaderRuntimeInterface"\n'
+    file_text += '       }\n'
+    file_text += '    }\n'
+    file_text += '}\n'
+    with open(output_file, 'w') as f:
+        f.write(file_text)
+
     if generate_badjson_jsons:
         # Bad File format versions
         ####################################

src/tests/loader_test/test_runtimes/CMakeLists.txt

@@ -34,7 +34,6 @@ set_target_properties(test_runtime PROPERTIES FOLDER ${TESTS_FOLDER})
 add_dependencies(test_runtime
     xr_global_generated_files
     generate_openxr_header
-    generated_rt_json_files
 )
 target_include_directories(test_runtime
     PRIVATE ${PROJECT_SOURCE_DIR}/src
@@ -85,8 +84,5 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     )
 endif()
 
-add_custom_target(generated_rt_json_files DEPENDS
-    ${PROJECT_BINARY_DIR}/src/tests/loader_test/resources/runtimes/test_runtime.json
-)
-set_target_properties(generated_rt_json_files PROPERTIES FOLDER ${CODEGEN_FOLDER})
-
+# Add generated file to our sources so we depend on it, and thus trigger geenration.
+target_sources(test_runtime PRIVATE ${PROJECT_BINARY_DIR}/src/tests/loader_test/resources/runtimes/test_runtime.json)