1 files changed, 130 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/build-scripts/rename_symbols.py b/src/contrib/SDL-3.2.20/build-scripts/rename_symbols.py
new file mode 100755
index 0000000..33a92dd
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/build-scripts/rename_symbols.py
@@ -0,0 +1,130 @@
+#!/usr/bin/env python3
+#
+# This script renames symbols in the specified paths
+
+import argparse
+import os
+import pathlib
+import re
+import sys
+
+
+SDL_ROOT = pathlib.Path(__file__).resolve().parents[1]
+
+SDL_INCLUDE_DIR = SDL_ROOT / "include/SDL3"
+
+
+def main():
+    if args.all_symbols:
+        if len(args.args) < 1:
+            print("Usage: %s --all-symbols files_or_directories ..." % sys.argv[0])
+            exit(1)
+
+        replacements = get_all_replacements()
+        entries = args.args
+
+    else:
+        if len(args.args) < 3:
+            print("Usage: %s [--substring] oldname newname files_or_directories ..." % sys.argv[0])
+            exit(1)
+
+        replacements = { args.args[0]: args.args[1] }
+        entries = args.args[2:]
+
+    if args.substring:
+        regex = create_substring_regex_from_replacements(replacements)
+    else:
+        regex = create_regex_from_replacements(replacements)
+
+    for entry in entries:
+        path = pathlib.Path(entry)
+        if not path.exists():
+            print("%s doesn't exist, skipping" % entry)
+            continue
+
+        replace_symbols_in_path(path, regex, replacements)
+
+
+def get_all_replacements():
+    replacements = {}
+    file = (SDL_INCLUDE_DIR / "SDL_oldnames.h")
+    mode = 0
+    for line in file.read_text().splitlines():
+        if line == "#ifdef SDL_ENABLE_OLD_NAMES":
+            if mode == 0:
+                mode = 1
+            else:
+                raise Exception("get_all_replacements(): expected mode 0")
+        elif line == "#elif !defined(SDL_DISABLE_OLD_NAMES)":
+            if mode == 1:
+                mode = 2
+            else:
+                raise Exception("get_all_replacements(): expected mode 1")
+        elif line == "#endif /* SDL_ENABLE_OLD_NAMES */":
+            if mode == 2:
+                mode = 3
+            else:
+                raise Exception("add_symbol_to_oldnames(): expected mode 2")
+        elif mode == 1 and line.startswith("#define "):
+            words = line.split()
+            replacements[words[1]] = words[2]
+            # In case things are accidentally renamed to the "X_renamed_Y" symbol
+            #replacements[words[1] + "_renamed_" + words[2]] = words[2]
+
+    return replacements
+
+
+def create_regex_from_replacements(replacements):
+    return re.compile(r"\b(%s)\b" % "|".join(map(re.escape, replacements.keys())))
+
+
+def create_substring_regex_from_replacements(replacements):
+    return re.compile(r"(%s)" % "|".join(map(re.escape, replacements.keys())))
+
+
+def replace_symbols_in_file(file, regex, replacements):
+    try:
+        with file.open("r", encoding="UTF-8", newline="") as rfp:
+            original = rfp.read()
+            contents = regex.sub(lambda mo: replacements[mo.string[mo.start():mo.end()]], original)
+            if contents != original:
+                with file.open("w", encoding="UTF-8", newline="") as wfp:
+                    wfp.write(contents)
+    except UnicodeDecodeError:
+        print("%s is not text, skipping" % file)
+    except Exception as err:
+        print("%s" % err)
+
+
+def replace_symbols_in_dir(path, regex, replacements):
+    for entry in path.glob("*"):
+        if entry.is_dir():
+            replace_symbols_in_dir(entry, regex, replacements)
+        else:
+            print("Processing %s" % entry)
+            replace_symbols_in_file(entry, regex, replacements)
+
+
+def replace_symbols_in_path(path, regex, replacements):
+        if path.is_dir():
+            replace_symbols_in_dir(path, regex, replacements)
+        else:
+            replace_symbols_in_file(path, regex, replacements)
+
+
+if __name__ == "__main__":
+
+    parser = argparse.ArgumentParser(fromfile_prefix_chars='@')
+    parser.add_argument("--all-symbols", action="store_true")
+    parser.add_argument("--substring", action="store_true")
+    parser.add_argument("args", nargs="*")
+    args = parser.parse_args()
+
+    try:
+        main()
+    except Exception as e:
+        print(e)
+        exit(-1)
+
+    exit(0)
+