papermario/coverage.py

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#!/usr/bin/env python3
import os
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import re
import sys
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from pathlib import Path
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def strip_c_comments(text):
def replacer(match):
s = match.group(0)
if s.startswith("/"):
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return " "
else:
return s
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pattern = re.compile(
r'//.*?$|/\*.*?\*/|\'(?:\\.|[^\\\'])*\'|"(?:\\.|[^\\"])*"',
re.DOTALL | re.MULTILINE,
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)
return re.sub(pattern, replacer, text)
c_func_pattern = re.compile(r"^(static\s+)?[^\s]+\s+([^\s(]+)\(([^;)]*)\)[^;]+{", re.MULTILINE)
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def funcs_in_c(text):
return (match.group(2) for match in c_func_pattern.finditer(text))
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asm_func_pattern = re.compile(r"INCLUDE_ASM\([^,]+, [^,]+, ([^,)]+)", re.MULTILINE)
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def include_asms_in_c(text):
return (match.group(1) for match in asm_func_pattern.finditer(text))
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def stuff(version):
DIR = os.path.dirname(__file__)
NONMATCHINGS_DIR = Path(os.path.join(DIR, "ver", version, "asm", "nonmatchings"))
C_FILES = Path(os.path.join(DIR, "src")).rglob("*.c")
ASM_FILES = NONMATCHINGS_DIR.rglob("*.s")
matched = []
asm = []
for filename in C_FILES:
with open(filename, "r") as file:
text = strip_c_comments(file.read())
matched.extend((m for m in funcs_in_c(text) if not m in matched))
asm.extend((m for m in include_asms_in_c(text) if not m in asm))
non_matched = [os.path.splitext(os.path.basename(filename))[0] for filename in ASM_FILES]
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partial_matched = [f for f in matched if f in asm]
matched = [f for f in matched if not f in partial_matched]
matched_but_undeleted_asm = set([f for f in matched if f in non_matched and not f in partial_matched])
orphan_asm = set(non_matched) - set(asm) - matched_but_undeleted_asm
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to_delete = matched_but_undeleted_asm | orphan_asm
if __name__ == "__main__":
if "--help" in sys.argv:
print("--fail-undeleted exit with error code 1 if obsolete .s functions exist")
print("--delete delete obsolete .s functions without asking")
exit()
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if len(to_delete) > 0:
print(f"The following functions can be deleted: {to_delete}")
if "--fail-undeleted" in sys.argv:
exit(1)
elif "--delete" in sys.argv or input("Delete them [y/N]? ").upper() == "Y":
for func in to_delete:
f = next(NONMATCHINGS_DIR.rglob(func + ".s"))
os.remove(f)
# Remove empty directories
for folder in list(os.walk(NONMATCHINGS_DIR)):
if not os.listdir(folder[0]):
os.removedirs(folder[0])
stuff("jp")
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stuff("us")
stuff("pal")
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stuff("ique")