mirror of
https://github.com/MobileGL-Dev/MobileGL
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92 lines
3.8 KiB
Python
92 lines
3.8 KiB
Python
#!/usr/bin/env python3
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# MobileGL - scripts/ci/retired_switches.py
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# Copyright (c) 2025-2026 MobileGL-Dev
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# Licensed under the GNU Lesser General Public License v3.0:
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# https://www.gnu.org/licenses/gpl-3.0.txt
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# https://www.gnu.org/licenses/lgpl-3.0.txt
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# SPDX-License-Identifier: LGPL-3.0-only
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# End of Source File Header
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"""P13 W3b: the pull build's switches stay retired.
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The pull build's macro (MOBILEGL_PIPE_PUSH as a preprocessor condition), the legacy-memo macro
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(MOBILEGL_PIPE_LEGACY_MEMOS) and the MGB_CTX spelling of the backends' context were removed in
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P13 W3b. Any of them coming back in source is a second arm nobody tests, so it is a red here.
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The RUNTIME MOBILEGL_PIPE_PUSH environment bitmask (bit 63 is still a switch, bits 0-13 are fixed
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on) is a different thing and is not matched: only a preprocessor conditional naming the macro is.
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Usage: retired_switches.py [--self-test]
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"""
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import pathlib
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import re
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import subprocess
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import sys
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ROOT = pathlib.Path(__file__).resolve().parents[2]
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CODE_GLOBS = ('*.cpp', '*.h', '*.hpp', '*.inc', '*.def', '*.c')
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RULES = (
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(re.compile(r'^\s*#\s*(?:if|ifdef|ifndef|elif)\b.*\b(?:MOBILEGL_PIPE_PUSH|MOBILEGL_PIPE_LEGACY_MEMOS)\b'),
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'a preprocessor conditional names a macro P13 W3b retired (MOBILEGL_PIPE_PUSH / '
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'MOBILEGL_PIPE_LEGACY_MEMOS)'),
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(re.compile(r'\bMGB_CTX(?:_LIVE|_IDENTITY)?\b'),
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'MGB_CTX is back; backends read MG_Pipe::gPipeInputs directly since P13 W3b'),
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(re.compile(r'^\s*#\s*(?:if|ifdef|ifndef|elif)\b.*\bMOBILEGL_BUILD_RECORD_ARM\b'),
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'a preprocessor conditional names MOBILEGL_BUILD_RECORD_ARM, folded away at P13 W5 S8 - the '
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'record arm is in every library; a transport-only block takes MOBILEGL_BUILD_DISAGGREGATED'),
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)
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def scan(files):
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findings = []
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for path, text in files:
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for number, line in enumerate(text.splitlines(), start=1):
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for pattern, message in RULES:
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if pattern.search(line):
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findings.append(f'{path}:{number}: {message}: {line.strip()}')
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return findings
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def tree_files():
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names = subprocess.check_output(['git', 'ls-files', '--', *CODE_GLOBS], cwd=ROOT, text=True).split()
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for name in names:
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try:
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yield name, (ROOT / name).read_text(encoding='utf-8', errors='replace')
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except FileNotFoundError:
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continue
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def self_test():
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planted = [('planted.cpp', '#if MOBILEGL_PIPE_PUSH\nx();\n#endif\n'),
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('planted.h', ' # elif !MOBILEGL_PIPE_LEGACY_MEMOS && FOO\n'),
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('planted.inc', 'auto v = MGB_CTX->GetX();\n'),
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('planted2.cpp', 'if (MGB_CTX_LIVE) {}\n'),
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('planted3.cpp', '#if MOBILEGL_BUILD_RECORD_ARM && MOBILEGL_PIPE_POISON\n'),
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('planted4.h', '#elif !MOBILEGL_BUILD_RECORD_ARM\n')]
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for item in planted:
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assert scan([item]), f'the gate missed a planted line: {item}'
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clean = [('clean.cpp', 'features.PipePush = QueryEnvUint64("MOBILEGL_PIPE_PUSH", 0x3fff);\n'),
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('clean.h', '// MOBILEGL_PIPE_PUSH=0x7f was the P2 mask\n'),
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('clean.inc', 'MG_Pipe::gPipeInputs.GetX();\n'),
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('clean2.cpp', '// MOBILEGL_BUILD_RECORD_ARM was W5\'s temporary guard\n')]
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for item in clean:
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assert not scan([item]), f'the gate fired on a legitimate line: {item}'
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print(f'retired switches self-test: {len(planted)} planted lines caught, {len(clean)} clean lines left alone')
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def main():
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if '--self-test' in sys.argv[1:]:
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self_test()
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findings = scan(tree_files())
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for line in findings:
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print(f'::error::{line}')
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if findings:
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return 1
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print('retired switches: none of MOBILEGL_PIPE_PUSH / MOBILEGL_PIPE_LEGACY_MEMOS / MOBILEGL_BUILD_RECORD_ARM '
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'(as #if) or MGB_CTX in source')
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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