158 lines
4.5 KiB
Python
Executable file
158 lines
4.5 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# This script renames symbols in the API, updating SDL_oldnames.h and
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# adding documentation for the change.
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import argparse
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import os
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import pathlib
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import pprint
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import re
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import sys
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from rename_symbols import create_regex_from_replacements, replace_symbols_in_path
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SDL_ROOT = pathlib.Path(__file__).resolve().parents[1]
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SDL_INCLUDE_DIR = SDL_ROOT / "include/SDL3_ttf"
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SDL_BUILD_SCRIPTS = SDL_ROOT / "build-scripts"
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def main():
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if len(args.args) == 0 or (len(args.args) % 2) != 0:
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print("Usage: %s [-h] [--skip-header-check] {enum,function,hint,structure,symbol} [old new ...]" % sys.argv[0])
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exit(1)
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# Check whether we can still modify the ABI
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header_text = pathlib.Path( SDL_INCLUDE_DIR / "SDL_ttf.h" ).read_text()
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if not re.search(r"SDL_TTF_MINOR_VERSION\s+[01]\s", header_text):
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raise Exception("ABI is frozen, symbols cannot be renamed")
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# Replace the symbols in source code
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replacements = {}
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i = 0
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while i < len(args.args):
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oldname = args.args[i + 0]
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newname = args.args[i + 1]
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if not args.skip_header_check and not re.search((r"\b%s\b" % oldname), header_text):
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raise Exception("Couldn't find %s in %s" % (oldname, header))
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replacements[ oldname ] = newname
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i += 2
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regex = create_regex_from_replacements(replacements)
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for dir in ["src", "examples", "include", "cmake/test"]:
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replace_symbols_in_path(SDL_ROOT / dir, regex, replacements)
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# Replace the symbols in documentation
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i = 0
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while i < len(args.args):
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oldname = args.args[i + 0]
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newname = args.args[i + 1]
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add_symbol_to_migration(args.type, oldname, newname)
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add_symbol_to_coccinelle(args.type, oldname, newname)
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i += 2
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def add_line(lines, i, section):
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lines.insert(i, section)
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i += 1
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return i
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def add_content(lines, i, content, add_trailing_line):
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if lines[i - 1] == "":
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lines[i - 1] = content
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else:
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i = add_line(lines, i, content)
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if add_trailing_line:
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i = add_line(lines, i, "")
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return i
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def add_symbol_to_coccinelle(symbol_type, oldname, newname):
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file = open(SDL_BUILD_SCRIPTS / "SDL_migration.cocci", "a")
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# Append-adds at last
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if symbol_type == "function":
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file.write("@@\n")
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file.write("@@\n")
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file.write("- %s\n" % oldname)
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file.write("+ %s\n" % newname)
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file.write(" (...)\n")
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if symbol_type == "symbol":
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file.write("@@\n")
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file.write("@@\n")
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file.write("- %s\n" % oldname)
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file.write("+ %s\n" % newname)
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# double check ?
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if symbol_type == "hint":
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file.write("@@\n")
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file.write("@@\n")
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file.write("- %s\n" % oldname)
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file.write("+ %s\n" % newname)
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if symbol_type == "enum" or symbol_type == "structure":
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file.write("@@\n")
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file.write("typedef %s, %s;\n" % (oldname, newname))
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file.write("@@\n")
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file.write("- %s\n" % oldname)
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file.write("+ %s\n" % newname)
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file.close()
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def add_symbol_to_migration(symbol_type, oldname, newname):
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file = (SDL_ROOT / "docs/README-migration.md")
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lines = file.read_text().splitlines()
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note = ("The following %ss have been renamed:" % symbol_type)
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note_added = False
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if symbol_type == "function":
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content = ("* %s() => %s()" % (oldname, newname))
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else:
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content = ("* %s => %s" % (oldname, newname))
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content_added = False
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mode = 0
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i = 0
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while i < len(lines):
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line = lines[i]
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if not note_added:
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if note == line:
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note_added = True
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elif note_added and not content_added:
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if content == line:
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content_added = True
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elif line == "" or content < line:
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i = add_line(lines, i, content)
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content_added = True
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i += 1
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if not note_added:
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i = add_line(lines, i, note)
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if not content_added:
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i = add_content(lines, i, content, True)
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file.write_text("\n".join(lines) + "\n")
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(fromfile_prefix_chars='@')
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parser.add_argument("--skip-header-check", action="store_true")
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parser.add_argument("type", choices=["enum", "function", "hint", "structure", "symbol"])
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parser.add_argument("args", nargs="*")
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args = parser.parse_args()
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try:
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main()
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except Exception as e:
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print(e)
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exit(-1)
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exit(0)
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