virtualx-engine/misc/scripts/fix_headers.py
Rémi Verschelde 7bf9787921 SCons: Format buildsystem files with psf/black
Configured for a max line length of 120 characters.

psf/black is very opinionated and purposely doesn't leave much room for
configuration. The output is mostly OK so that should be fine for us,
but some things worth noting:

- Manually wrapped strings will be reflowed, so by using a line length
  of 120 for the sake of preserving readability for our long command
  calls, it also means that some manually wrapped strings are back on
  the same line and should be manually merged again.

- Code generators using string concatenation extensively look awful,
  since black puts each operand on a single line. We need to refactor
  these generators to use more pythonic string formatting, for which
  many options are available (`%`, `format` or f-strings).

- CI checks and a pre-commit hook will be added to ensure that future
  buildsystem changes are well-formatted.

(cherry picked from commit cd4e46ee65)
2020-06-10 15:30:52 +02:00

102 lines
4.3 KiB
Python
Executable file

#!/usr/bin/env python
# -*- coding: utf-8 -*-
header = """\
/*************************************************************************/
/* $filename */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
"""
files = open("files", "r")
fname = files.readline()
while fname != "":
# Handle replacing $filename with actual filename and keep alignment
fsingle = fname.strip()
if fsingle.find("/") != -1:
fsingle = fsingle[fsingle.rfind("/") + 1 :]
rep_fl = "$filename"
rep_fi = fsingle
len_fl = len(rep_fl)
len_fi = len(rep_fi)
# Pad with spaces to keep alignment
if len_fi < len_fl:
for x in range(len_fl - len_fi):
rep_fi += " "
elif len_fl < len_fi:
for x in range(len_fi - len_fl):
rep_fl += " "
if header.find(rep_fl) != -1:
text = header.replace(rep_fl, rep_fi)
else:
text = header.replace("$filename", fsingle)
text += "\n"
# We now have the proper header, so we want to ignore the one in the original file
# and potentially empty lines and badly formatted lines, while keeping comments that
# come after the header, and then keep everything non-header unchanged.
# To do so, we skip empty lines that may be at the top in a first pass.
# In a second pass, we skip all consecutive comment lines starting with "/*",
# then we can append the rest (step 2).
fileread = open(fname.strip(), "r")
line = fileread.readline()
header_done = False
while line.strip() == "": # Skip empty lines at the top
line = fileread.readline()
if line.find("/**********") == -1: # Godot header starts this way
# Maybe starting with a non-Godot comment, abort header magic
header_done = True
while not header_done: # Handle header now
if line.find("/*") != 0: # No more starting with a comment
header_done = True
if line.strip() != "":
text += line
line = fileread.readline()
while line != "": # Dump everything until EOF
text += line
line = fileread.readline()
fileread.close()
# Write
filewrite = open(fname.strip(), "w")
filewrite.write(text)
filewrite.close()
# Next file
fname = files.readline()
files.close()