pyproject.toml

[tool.ruff]
# Exclude the most problematic legacy directories from linting
exclude = [
    ".git",
    "__pycache__",
    "build",
    "dist",
    "*.egg-info",
    "musicalgestures/deprecated",
    "musicalgestures/3rdparty",
]

# Set the maximum line length
line-length = 100

# Assume Python 3.8+ for compatibility with CI matrix
target-version = "py38"

[tool.ruff.lint]
# Enable basic linting rules but ignore the most problematic ones for legacy code
select = [
    "E",   # pycodestyle errors
    "W",   # pycodestyle warnings
    "F",   # Pyflakes
]

# Ignore specific rules that would require major refactoring of legacy code
ignore = [
    "E401",  # Multiple imports on one line (common in legacy code)
    "E711",  # Comparison to None should use `is` (legacy pattern)
    "E712",  # Comparison to True/False should use `is` (legacy pattern)
    "E721",  # Use isinstance() instead of type() (legacy pattern)
    "E722",  # Bare except clauses (legacy error handling)
    "F401",  # Imported but unused (many imports used in __init__.py for API)
    "F405",  # May be undefined due to star imports (test files use this pattern)
    "F811",  # Redefinition of unused variable (legacy code pattern)
    "F821",  # Undefined name (some legacy issues)
    "F841",  # Local variable assigned but never used (legacy code)
]

[tool.ruff.lint.per-file-ignores]
# Allow star imports in test files (common pytest pattern)
"tests/*.py" = ["F403", "F405"]

# Allow more flexibility in __init__.py files
"*/__init__.py" = ["F401", "F403"]

# Examples should be clean (we fixed these)
"examples/*.py" = []