feat: add initial experimental Twitch Eventsub support (#5837)

Co-authored-by: nerix <nerixdev@outlook.de>

lib/twitch-eventsub-ws/ast/replace-in-file.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+import logging
+import sys
+from os.path import realpath
+
+from lib import definition_markers, implementation_markers, init_logging, replace_in_file
+
+log = logging.getLogger("replace-in-file")
+
+
+def main():
+    init_logging()
+
+    if len(sys.argv) < 3:
+        log.error(f"usage: {sys.argv[0]} <path-to-header-file> <path-to-source-file>")
+        sys.exit(1)
+
+    # The files where we will do the replacements
+    header_path = realpath(sys.argv[1])
+    source_path = realpath(sys.argv[2])
+
+    # The files where we read the generated definitions & implementations from
+    # TODO: pass these along in argv too?
+    stdin_lines = sys.stdin.readlines()
+    generated_definition_path = realpath(stdin_lines[0].strip())
+    generated_implementation_path = realpath(stdin_lines[1].strip())
+
+    log.debug(f"Generated files: {generated_definition_path} / {generated_implementation_path}")
+    log.debug(f"Real files: {header_path} / {source_path}")
+
+    with open(generated_definition_path, "r") as generated_fh:
+        replacement = generated_fh.read()
+        replace_in_file(source_path, definition_markers, replacement)
+
+    with open(generated_implementation_path, "r") as generated_fh:
+        replacement = generated_fh.read()
+        replace_in_file(source_path, implementation_markers, replacement)
+
+
+if __name__ == "__main__":
+    main()