line-length = 120
preview = true # Required to enable pre-release copyright header checks (CPY001)
lint.explicit-preview-rules = true

exclude = [
    # Exclude a variety of commonly ignored directories.
    ".bzr",
    ".direnv",
    ".eggs",
    ".git",
    ".git-rewrite",
    ".hg",
    ".mypy_cache",
    ".nox",
    ".pants.d",
    ".pytype",
    ".ruff_cache",
    ".svn",
    ".tox",
    ".venv",
    "__pypackages__",
    "_build",
    "buck-out",
    "build",
    "dist",
    "node_modules",
    "venv",
    # protobuf generated files
    "*_pb2.py", 
    "*_pb2.pyi",
    "../rules"
]

lint.select = [
    "E",   # pycodestyle (base style rules)
    "F",   # Pyflakes (logical/syntax errors)
    "I",   # isort (import sorting)
    "B",   # flake8-bugbear (common bugs/design problems)
    "C4",  # flake8-comprehensions (simplify list/dict comprehensions)
    "ISC", # flake8-implicit-str-concat (detect accidental multi-line string issues)
    "T20", # flake8-print (prevent leftover print/pprint statements)
    "SIM", # flake8-simplify (code simplification upgrades)
    "CPY001", # flake8-copyright (header requirement enforcement)
    "G",   # flake8-logging-format (logging statement validation)
    "TD",  # flake8-todos (TODO formatting requirements)
    "PTH", # flake8-use-pathlib (migration from os.path to Pathlib)
    "UP",  # pyupgrade (modern Python syntax upgrades)
]

# Allow autofix for all enabled rules (when `--fix`) is provided.
lint.fixable = ["ALL"]
lint.unfixable = []

# Map existing flake8 ignores to maintain strict parity
lint.ignore = [
    # Legacy flake8 ignores
    "E402", # Module level import not at top of file
    "E722", # Do not use bare except
    "E501", # Line too long
    "E203", # Whitespace before ':'
    "E701", # Multiple statements on one line
    "B010", # Do not call setattr with a constant attribute value
    "SIM102", # Use a single if statement instead of nested if statements
    "SIM114", # Combine if branches using logical or operator
    
    # Newly surfaced Ruff strictness ignores
    "B905", # zip() without an explicit strict= parameter
    "UP032", # Use f-string instead of format call
    "UP031", # Use format specifiers instead of percent format
    "SIM300", # Yoda condition detected (constant before variable)
    "SIM108", # Use ternary operator instead of if-else block
    "ISC003", # Explicitly concatenated string should be implicitly concatenated
    "UP035", # Deprecated typing alias usage
    "UP006", # Use type instead of Type for type annotation
    "SIM115", # Use a context manager for opening files
    "SIM118", # Use key not in dict instead of key not in dict.keys()
    "UP024", # Replace aliased errors with OSError
    "UP045", # Use X | None for optional type annotations
    "SIM103", # Return negated condition directly
    "UP007", # Use X | Y for union type annotations
    "B904", # Raise exceptions within except clause using raise from
    "UP028", # Replace yield over for loop with yield from
    "C409", # Unnecessary list comprehension passed to tuple()
]

[lint.per-file-ignores]
# T201 print found schemas for scripts and entrypoints
"scripts/*" = ["T201"]
"capa/main.py" = ["T201"]
"capa/features/extractors/binja/find_binja_api.py" = ["T201"]
"tests/conftest.py" = ["I001"] # Suppress import sorting to preserve explicit legacy fixture loading order
"*_pb2.py" = ["ALL"] # Completely disable all formatting for auto-generated protocol buffer files

[lint.flake8-copyright]
notice-rgx = "Copyright \\d{4} Google LLC"
min-file-size = 1

[lint.isort]
length-sort = true