pyproject.toml

[tool.black]
line-length = 100
target-version = ["py38"]

[tool.isort]
src_paths = [".", "tools"]
known_third_party = "zulip"
profile = "black"
line_length = 100

[tool.mypy]
# Logistics of what code to check and how to handle the data.
scripts_are_modules = true
show_traceback = true
# See https://zulip.readthedocs.io/en/latest/testing/mypy.html#mypy-stubs-for-third-party-modules
# for notes on how we manage mypy stubs.
mypy_path = "$MYPY_CONFIG_FILE_DIR/stubs"
cache_dir = "$MYPY_CONFIG_FILE_DIR/var/mypy-cache"

# Enable strict mode, with some exceptions.
strict = true
disallow_subclassing_any = false
disallow_untyped_calls = false
disallow_untyped_decorators = false
warn_return_any = false

# Enable optional errors.
enable_error_code = [
    "redundant-self",
    "redundant-expr",
    "truthy-bool",
    "truthy-iterable",
    "ignore-without-code",
    "unused-awaitable",
    "explicit-override",
]

# Display the codes needed for # type: ignore[code] annotations.
show_error_codes = true

# Warn of unreachable or redundant code.
warn_unreachable = true

# dmypy enables local_partial_types implicitly. We need mypy to align
# with this behavior.
local_partial_types = true

plugins = [
    "mypy_django_plugin.main",
    "pydantic.mypy",
    "returns.contrib.mypy.returns_plugin",
]

[[tool.mypy.overrides]]
module = [
    "ahocorasick.*",
    "bitfield.*",
    "bmemcached.*",
    "cairosvg.*", # https://github.com/Kozea/CairoSVG/issues/373
    "circuitbreaker.*",
    "defusedxml.*", # https://github.com/tiran/defusedxml/issues/46
    "digitalocean.*",
    "django_auth_ldap.*",
    "django_bmemcached.*",
    "django_cte.*",
    "django_otp.*",
    "django_scim.*",
    "DNS.*",
    "fakeldap.*",
    "gcm.*",
    "gitlint.*",
    "jsonref.*",
    "ldap.*", # https://github.com/python-ldap/python-ldap/issues/368
    "moto.*", # https://github.com/spulec/moto/issues/4944
    "onelogin.*",
    "pyinotify.*",
    "pyoembed.*",
    "pyuca.*",
    "re2.*",
    "requests_oauthlib.*", # https://github.com/requests/requests-oauthlib/issues/428
    "scim2_filter_parser.attr_paths",
    "scrapy.*", # https://github.com/scrapy/scrapy/issues/4041
    "social_core.*",
    "social_django.*",
    "talon_core.*",
    "tlds.*",
    "twitter.*",
    "two_factor.*",
]
ignore_missing_imports = true

[tool.django-stubs]
django_settings_module = "zproject.settings"

[tool.pydantic-mypy]
# See https://docs.pydantic.dev/latest/integrations/mypy/#mypy-plugin-capabilities for the effects of these options.
init_forbid_extra = true
init_typed = true
warn_required_dynamic_aliases = true

[tool.ruff]
line-length = 100
src = [".", "tools"]
target-version = "py38"

[tool.ruff.lint]
# See https://github.com/astral-sh/ruff#rules for error code definitions.
select = [
    "ANN", # annotations
    "B", # bugbear
    "C4", # comprehensions
    "COM", # trailing comma
    "DJ", # Django
    "DTZ", # naive datetime
    "E", # style errors
    "EXE", # shebang
    "F", # flakes
    "FLY", # string formatting
    "G", # logging format
    "I", # import sorting
    "INT", # gettext
    "ISC", # string concatenation
    "LOG", # logging
    "N", # naming
    "PERF", # performance
    "PGH", # pygrep-hooks
    "PIE", # miscellaneous
    "PL", # pylint
    "PYI", # typing stubs
    "Q", # quotes
    "RSE", # raise
    "RUF", # Ruff
    "S", # security
    "SLOT", # __slots__
    "SIM", # simplify
    "T10", # debugger
    "TCH", # type-checking
    "TID", # tidy imports
    "UP", # upgrade
    "W", # style warnings
    "YTT", # sys.version
]
ignore = [
    "ANN101", # Missing type annotation for `self` in method
    "ANN102", # Missing type annotation for `cls` in classmethod
    "ANN401", # Dynamically typed expressions (typing.Any) are disallowed
    "B007", # Loop control variable not used within the loop body
    "B008", # Do not perform function calls in argument defaults
    "B904", # Within an except clause, raise exceptions with raise ... from err or raise ... from None to distinguish them from errors in exception handling
    "C408", # Unnecessary `dict` call (rewrite as a literal)
    "COM812", # Trailing comma missing
    "DJ001", # Avoid using `null=True` on string-based fields
    "DJ008", # Model does not define `__str__` method
    "E402", # Module level import not at top of file
    "E501", # Line too long
    "E731", # Do not assign a lambda expression, use a def
    "ISC001", # Implicitly concatenated string literals on one line
    "N802", # Function name should be lowercase
    "N806", # Variable in function should be lowercase
    "PERF203", # `try`-`except` within a loop incurs performance overhead
    "PLC0414", # Import alias does not rename original package
    "PLC1901", # `s == ""` can be simplified to `not s` as an empty string is falsey
    "PLR0911", # Too many return statements
    "PLR0912", # Too many branches
    "PLR0913", # Too many arguments to function call
    "PLR0915", # Too many statements
    "PLR2004", # Magic value used in comparison
    "PLR5501", # Consider using `elif` instead of `else` then `if` to remove one indentation level
    "PLW0603", # Using the global statement is discouraged
    "PLW2901", # Outer for loop variable overwritten by inner for loop target
    "RUF001", # String contains ambiguous unicode character
    "RUF002", # Docstring contains ambiguous unicode character
    "RUF003", # Comment contains ambiguous unicode character
    "RUF012", # Mutable class attributes should be annotated with `typing.ClassVar`
    "S101", # Use of `assert` detected
    "S105", # Possible hardcoded password
    "S106", # Possible hardcoded password
    "S107", # Possible hardcoded password
    "S110", # `try`-`except`-`pass` detected, consider logging the exception
    "S113", # Probable use of requests call without timeout
    "S310", # Audit URL open for permitted schemes. Allowing use of `file:` or custom schemes is often unexpected.
    "S311", # Standard pseudo-random generators are not suitable for cryptographic purposes
    "S324", # Probable use of insecure hash functions in `hashlib`
    "S603", # `subprocess` call: check for execution of untrusted input
    "S606", # Starting a process without a shell
    "S607", # Starting a process with a partial executable path
    "SIM103", # Return the condition directly
    "SIM108", # Use ternary operator `action = "[commented]" if action == "created" else f"{action} a [comment]"` instead of if-else-block
    "SIM114", # Combine `if` branches using logical `or` operator
    "SIM117", # Use a single `with` statement with multiple contexts instead of nested `with` statements
    "SIM401", # Use `d.get(key, default)` instead of an `if` block
    "TCH001", # Move application import into a type-checking block
    "TCH002", # Move third-party import into a type-checking block
    "TCH003", # Move standard library import into a type-checking block
]

[tool.ruff.lint.flake8-gettext]
extend-function-names = ["gettext_lazy"]

[tool.ruff.lint.isort]
known-third-party = ["zulip"]
split-on-trailing-comma = false