pyproject.toml

# SPDX-FileCopyrightText: 2022 James R. Barlow
# SPDX-License-Identifier: MPL-2.0

[build-system]
requires = [
  "setuptools >= 52",
  "setuptools-scm[toml] >= 7.0.5",
  "wheel >= 0.35",
  "pybind11 >= 2.9.1",
  "pybind11 < 2.10.0; python_implementation == 'PyPy'"
]
build-backend = "setuptools.build_meta"

[tool.setuptools_scm]

[tool.black]
line-length = 88
target-version = ["py37", "py38"]
skip-string-normalization = true
include = '\.pyi?$'
exclude = '''
/(
    \.eggs
  | \.git
  | \.hg
  | \.mypy_cache
  | \.tox
  | \.venv
  | _build
  | buck-out
  | build
  | dist
  | docs
  | misc
  | \.egg-info
)/
'''

[tool.cibuildwheel]
test-command = "pytest -nauto {project}/tests"
test-extras = "test"
skip = "cp36-*"
test-skip = "*_arm64 *_universal2:arm64"

[tool.cibuildwheel.environment]
QPDF_MIN_VERSION = "10.6.2"
QPDF_VERSION = "10.6.3"
QPDF_PATTERN = "https://github.com/qpdf/qpdf/releases/download/release-qpdf-VERSION/qpdf-VERSION.tar.gz"
JPEG_RELEASE = "https://www.ijg.org/files/jpegsrc.v9e.tar.gz"
ZLIB_RELEASE = "https://www.zlib.net/zlib-1.2.12.tar.gz"

[tool.cibuildwheel.linux]
before-all = [
  "yum install -y wget libxml2-devel libxslt-devel",
  "bash build-scripts/linux-install-libxmp.bash",
  "bash build-scripts/linux-download-qpdf-deps.bash",
  "bash build-scripts/linux-download-qpdf.bash $QPDF_VERSION",
  "bash build-scripts/linux-build-wheel-deps.bash"
]
manylinux-x86_64-image = "manylinux2014"
manylinux-i686-image = "manylinux2014"
manylinux-pypy_x86_64-image = "manylinux2014"
manylinux-pypy_i686-image = "manylinux2014"
# Status of exotic images as of 2022-07
# musllinux: see below
# pp39: no Pillow pp39 wheels yet - https://pypi.org/project/Pillow/#files
# pp*-manylinux*_aarch64: no Pillow pypy-aarch64 wheels yet
# pp*-manylinux*_i686: this will probably never happen
skip = "*-musllinux_* pp39* pp*-manylinux*_i686 pp*-manylinux*_aarch64"

[[tool.cibuildwheel.overrides]]
# musllinux image was based on Alpine 3.12
# We need Alpine 3.16 or newer to get newer required package versions
# Check https://github.com/pypa/manylinux/blob/main/build.sh#L71 to see if
# musllinux has been updated.
# To test this, remove musllinux from the skip list in the table above.
select = "*-musllinux*"
before-all = [
  "apk add py3-lxml py3-pillow python3 py3-setuptools py3-pybind11-dev python3-dev py3-wheel qpdf-dev exempi-dev"
]

[tool.cibuildwheel.macos]
before-all = ["brew update", "brew install qpdf little-cms2"]

[tool.cibuildwheel.windows]
# pp3*-win32 fails because there is no wheel for lxml
# pp3*-win_amd64 does not execute because cibuildwheel does not implement it
# or PyPy3 doesn't work on Windows 64-bit, one or the other
# Check https://pypi.org/project/lxml/#files to see if lxml is providing pp-*win
# PyPy+Win32 seems like a very low priority combination
skip = "pp3*"

[tool.mypy]

[[tool.mypy.overrides]]
module = ["deprecation"]
ignore_missing_imports = true

[tool.pytest.ini_options]
minversion = "6.0"
norecursedirs = ["lib", ".pc", ".git", "venv"]
testpaths = ["tests"]
addopts = "-n auto"

[tool.coverage.run]
concurrency = ["multiprocessing"]

[tool.coverage.report]
# Regexes for lines to exclude from consideration
exclude_lines = [
  # Have to re-enable the standard pragma
  "pragma: no cover",
  # Don't complain if tests don't hit defensive assertion code:
  "raise AssertionError",
  "raise NotImplementedError",
  # Don't complain if non-runnable code isn't run:
  "if 0:",
  "if __name__ == .__main__.:",
  "if TYPE_CHECKING:",
  "if typing.TYPE_CHECKING:"
]

[tool.coverage.html]
directory = "coverage/pycov"

[tool.isort]
profile = "black"
known_first_party = ["pikepdf"]
known_third_party = [
  "PIL",
  "conftest",
  "hypothesis",
  "lxml",
  "psutil",
  "pytest",
  "setuptools"
]

[tool.pylint.main]
# Analyse import fallback blocks. This can be used to support both Python 2 and 3
# compatible code, which means that the block might have code that exists only in
# one or another interpreter, leading to false positives when analysed.
# analyse-fallback-blocks =

# Always return a 0 (non-error) status code, even if lint errors are found. This
# is primarily useful in continuous integration scripts.
# exit-zero =

# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code.
# extension-pkg-allow-list =

# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code. (This is an alternative name to extension-pkg-allow-list
# for backward compatibility.)
extension-pkg-whitelist = ["pikepdf._qpdf", "lxml"]

# Return non-zero exit code if any of these messages/categories are detected,
# even if score is above --fail-under value. Syntax same as enable. Messages
# specified are enabled, while categories only check already-enabled messages.
# fail-on =

# Specify a score threshold to be exceeded before program exits with error.
fail-under = 10

# Interpret the stdin as a python script, whose filename needs to be passed as
# the module_or_package argument.
# from-stdin =

# Files or directories to be skipped. They should be base names, not paths.
ignore = [".git", ".venv", "tmp", "usr", "var", "licenses", "venv"]

# Add files or directories matching the regex patterns to the ignore-list. The
# regex matches against paths and can be in Posix or Windows format.
# ignore-paths =

# Files or directories matching the regex patterns are skipped. The regex matches
# against base names, not paths. The default value ignores Emacs file locks
# ignore-patterns =

# List of module names for which member attributes should not be checked (useful
# for modules/projects where namespaces are manipulated during runtime and thus
# existing member attributes cannot be deduced by static analysis). It supports
# qualified module names, as well as Unix pattern matching.
# ignored-modules =

# Python code to execute, usually for sys.path manipulation such as
# pygtk.require().
# init-hook =

# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
# number of processors available to use.
jobs = 1

# Control the amount of potential inferred values when inferring a single object.
# This can help the performance when dealing with large functions or complex,
# nested conditions.
limit-inference-results = 100

# List of plugins (as comma separated values of python module names) to load,
# usually to register additional checkers.
# load-plugins =

# Pickle collected data for later comparisons.
persistent = true

# Minimum Python version to use for version dependent checks. Will default to the
# version used to run pylint.
py-version = "3.7"

# Discover python modules and packages in the file system subtree.
# recursive =

# When enabled, pylint would attempt to guess common misconfiguration and emit
# user-friendly hints instead of false-positive error messages.
suggestion-mode = true

# Allow loading of arbitrary C extensions. Extensions are imported into the
# active Python interpreter and may run arbitrary code.
# unsafe-load-any-extension =

[tool.pylint.basic]
# Naming style matching correct argument names.
argument-naming-style = "snake_case"

# Regular expression matching correct argument names. Overrides argument-naming-
# style. If left empty, argument names will be checked with the set naming style.
# argument-rgx =

# Naming style matching correct attribute names.
attr-naming-style = "snake_case"

# Regular expression matching correct attribute names. Overrides attr-naming-
# style. If left empty, attribute names will be checked with the set naming
# style.
# attr-rgx =

# Bad variable names which should always be refused, separated by a comma.
bad-names = ["foo", "bar", "baz", "toto", "tutu", "tata"]

# Bad variable names regexes, separated by a comma. If names match any regex,
# they will always be refused
# bad-names-rgxs =

# Naming style matching correct class attribute names.
class-attribute-naming-style = "any"

# Regular expression matching correct class attribute names. Overrides class-
# attribute-naming-style. If left empty, class attribute names will be checked
# with the set naming style.
# class-attribute-rgx =

# Naming style matching correct class constant names.
class-const-naming-style = "UPPER_CASE"

# Regular expression matching correct class constant names. Overrides class-
# const-naming-style. If left empty, class constant names will be checked with
# the set naming style.
# class-const-rgx =

# Naming style matching correct class names.
class-naming-style = "PascalCase"

# Regular expression matching correct class names. Overrides class-naming-style.
# If left empty, class names will be checked with the set naming style.
# class-rgx =

# Naming style matching correct constant names.
const-naming-style = "UPPER_CASE"

# Regular expression matching correct constant names. Overrides const-naming-
# style. If left empty, constant names will be checked with the set naming style.
# const-rgx =

# Minimum line length for functions/classes that require docstrings, shorter ones
# are exempt.
docstring-min-length = -1

# Naming style matching correct function names.
function-naming-style = "snake_case"

# Regular expression matching correct function names. Overrides function-naming-
# style. If left empty, function names will be checked with the set naming style.
# function-rgx =

# Good variable names which should always be accepted, separated by a comma.
good-names = ["i", "j", "k", "ex", "Run", "_"]

# Good variable names regexes, separated by a comma. If names match any regex,
# they will always be accepted
# good-names-rgxs =

# Include a hint for the correct naming format with invalid-name.
# include-naming-hint =

# Naming style matching correct inline iteration names.
inlinevar-naming-style = "any"

# Regular expression matching correct inline iteration names. Overrides
# inlinevar-naming-style. If left empty, inline iteration names will be checked
# with the set naming style.
# inlinevar-rgx =

# Naming style matching correct method names.
method-naming-style = "snake_case"

# Regular expression matching correct method names. Overrides method-naming-
# style. If left empty, method names will be checked with the set naming style.
# method-rgx =

# Naming style matching correct module names.
module-naming-style = "snake_case"

# Regular expression matching correct module names. Overrides module-naming-
# style. If left empty, module names will be checked with the set naming style.
# module-rgx =

# Colon-delimited sets of names that determine each other's naming style when the
# name regexes allow several styles.
# name-group =

# Regular expression which should only match function or class names that do not
# require a docstring.
no-docstring-rgx = "^_"

# List of decorators that produce properties, such as abc.abstractproperty. Add
# to this list to register other decorators that produce valid properties. These
# decorators are taken in consideration only for invalid-name.
property-classes = ["abc.abstractproperty"]

# Regular expression matching correct type variable names. If left empty, type
# variable names will be checked with the set naming style.
# typevar-rgx =

# Naming style matching correct variable names.
variable-naming-style = "snake_case"

# Regular expression matching correct variable names. Overrides variable-naming-
# style. If left empty, variable names will be checked with the set naming style.
variable-rgx = "[a-z_][a-z0-9_]{0,30}$"

[tool.pylint.classes]
# Warn about protected attribute access inside special methods
# check-protected-access-in-special-methods =

# List of method names used to declare (i.e. assign) instance attributes.
defining-attr-methods = ["__init__", "__new__", "setUp"]

# List of member names, which should be excluded from the protected access
# warning.
exclude-protected = ["_asdict", "_fields", "_replace", "_source", "_make"]

# List of valid names for the first argument in a class method.
valid-classmethod-first-arg = ["cls"]

# List of valid names for the first argument in a metaclass class method.
valid-metaclass-classmethod-first-arg = ["mcs"]

[tool.pylint.design]
# List of regular expressions of class ancestor names to ignore when counting
# public methods (see R0903)
# exclude-too-few-public-methods =

# List of qualified class names to ignore when counting class parents (see R0901)
# ignored-parents =

# Maximum number of arguments for function / method.
max-args = 5

# Maximum number of attributes for a class (see R0902).
max-attributes = 7

# Maximum number of boolean expressions in an if statement (see R0916).
max-bool-expr = 5

# Maximum number of branch for function / method body.
max-branches = 12

# Maximum number of locals for function / method body.
max-locals = 15

# Maximum number of parents for a class (see R0901).
max-parents = 7

# Maximum number of public methods for a class (see R0904).
max-public-methods = 20

# Maximum number of return / yield for function / method body.
max-returns = 6

# Maximum number of statements in function / method body.
max-statements = 50

# Minimum number of public methods for a class (see R0903).
min-public-methods = 1

[tool.pylint.exceptions]
# Exceptions that will emit a warning when caught.
overgeneral-exceptions = ["Exception"]

[tool.pylint.format]
# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
# expected-line-ending-format =

# Regexp for a line that is allowed to be longer than the limit.
ignore-long-lines = "^\\s*(# )?<?https?://\\S+>?$"

# Number of spaces of indent required inside a hanging or continued line.
indent-after-paren = 4

# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
# tab).
indent-string = "    "

# Maximum number of characters on a single line.
max-line-length = 88

# Maximum number of lines in a module.
max-module-lines = 1000

# Allow the body of a class to be on the same line as the declaration if body
# contains single statement.
# single-line-class-stmt =

# Allow the body of an if to be on the same line as the test if there is no else.
# single-line-if-stmt =

[tool.pylint.imports]
# List of modules that can be imported at any level, not just the top level one.
# allow-any-import-level =

# Allow wildcard imports from modules that define __all__.
# allow-wildcard-with-all =

# Deprecated modules which should not be used, separated by a comma.
deprecated-modules = ["optparse", "tkinter.tix"]

# Output a graph (.gv or any supported image format) of external dependencies to
# the given file (report RP0402 must not be disabled).
# ext-import-graph =

# Output a graph (.gv or any supported image format) of all (i.e. internal and
# external) dependencies to the given file (report RP0402 must not be disabled).
# import-graph =

# Output a graph (.gv or any supported image format) of internal dependencies to
# the given file (report RP0402 must not be disabled).
# int-import-graph =

# Force import order to recognize a module as part of the standard compatibility
# libraries.
# known-standard-library =

# Force import order to recognize a module as part of a third party library.
known-third-party = ["enchant"]

# Couples of modules and preferred modules, separated by a comma.
# preferred-modules =

[tool.pylint.logging]
# The type of string formatting that logging methods do. `old` means using %
# formatting, `new` is for `{}` formatting.
logging-format-style = "new"

# Logging modules to check that the string format arguments are in logging
# function parameter format.
logging-modules = ["logging"]

[tool.pylint."messages control"]
# Only show warnings with the listed confidence levels. Leave empty to show all.
# Valid levels: HIGH, CONTROL_FLOW, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
confidence = ["HIGH", "CONTROL_FLOW", "INFERENCE", "INFERENCE_FAILURE", "UNDEFINED"]

# Disable the message, report, category or checker with the given id(s). You can
# either give multiple identifiers separated by comma (,) or put this option
# multiple times (only on the command line, not in the configuration file where
# it should appear only once). You can also use "--disable=all" to disable
# everything first and then re-enable specific checks. For example, if you want
# to run only the similarities checker, you can use "--disable=all
# --enable=similarities". If you want to run only the classes checker, but have
# no Warning level messages displayed, use "--disable=all --enable=classes
# --disable=W".
disable = ["raw-checker-failed", "bad-inline-option", "locally-disabled", "file-ignored", "suppressed-message", "useless-suppression", "deprecated-pragma", "use-symbolic-message-instead", "unnecessary-dunder-call", "line-too-long", "too-many-lines", "trailing-whitespace", "missing-final-newline", "trailing-newlines", "multiple-statements", "superfluous-parens", "mixed-line-endings", "unexpected-line-ending-format", "multiple-imports", "wrong-import-order", "ungrouped-imports", "wrong-import-position", "useless-import-alias", "import-outside-toplevel", "unnecessary-lambda-assignment", "unnecessary-direct-lambda-call", "non-ascii-name", "non-ascii-module-import", "wrong-spelling-in-comment", "wrong-spelling-in-docstring", "invalid-characters-in-docstring", "bad-file-encoding", "invalid-name", "disallowed-name", "typevar-name-incorrect-variance", "typevar-double-variance", "typevar-name-mismatch", "empty-docstring", "missing-module-docstring", "missing-class-docstring", "missing-function-docstring", "singleton-comparison", "unidiomatic-typecheck", "bad-classmethod-argument", "bad-mcs-method-argument", "bad-mcs-classmethod-argument", "single-string-used-for-slots", "unneeded-not", "consider-using-enumerate", "consider-iterating-dictionary", "consider-using-dict-items", "use-maxsplit-arg", "use-sequence-for-iteration", "consider-using-f-string", "use-implicit-booleaness-not-len", "use-implicit-booleaness-not-comparison", "protected-access", "unsubscriptable-object", "logging-fstring-interpolation"]

# Enable the message, report, category or checker with the given id(s). You can
# either give multiple identifier separated by comma (,) or put this option
# multiple time (only on the command line, not in the configuration file where it
# should appear only once). See also the "--disable" option for examples.
enable = ["c-extension-no-member"]

[tool.pylint.miscellaneous]
# List of note tags to take in consideration, separated by a comma.
notes = ["FIXME", "XXX", "TODO"]

# Regular expression of note tags to take in consideration.
# notes-rgx =

[tool.pylint.refactoring]
# Maximum number of nested blocks for function / method body
max-nested-blocks = 5

# Complete name of functions that never returns. When checking for inconsistent-
# return-statements if a never returning function is called then it will be
# considered as an explicit return statement and no message will be printed.
never-returning-functions = ["optparse.Values", "sys.exit"]

[tool.pylint.reports]
# Python expression which should return a score less than or equal to 10. You
# have access to the variables 'fatal', 'error', 'warning', 'refactor',
# 'convention', and 'info' which contain the number of messages in each category,
# as well as 'statement' which is the total number of statements analyzed. This
# score is used by the global evaluation report (RP0004).
evaluation = "10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)"

# Template used to display messages. This is a python new-style format string
# used to format the message information. See doc for all details.
# msg-template =

# Set the output format. Available formats are text, parseable, colorized, json
# and msvs (visual studio). You can also give a reporter class, e.g.
# mypackage.mymodule.MyReporterClass.
# output-format =

# Tells whether to display a full report or only the messages.
# reports =

# Activate the evaluation score.
score = true

[tool.pylint.similarities]
# Comments are removed from the similarity computation
ignore-comments = true

# Docstrings are removed from the similarity computation
ignore-docstrings = true

# Imports are removed from the similarity computation
# ignore-imports =

# Signatures are removed from the similarity computation
ignore-signatures = true

# Minimum lines number of a similarity.
min-similarity-lines = 4

[tool.pylint.spelling]
# Limits count of emitted suggestions for spelling mistakes.
max-spelling-suggestions = 4

# Spelling dictionary name. Available dictionaries: none. To make it work,
# install the 'python-enchant' package.
# spelling-dict =

# List of comma separated words that should be considered directives if they
# appear at the beginning of a comment and should not be checked.
spelling-ignore-comment-directives = "fmt: on,fmt: off,noqa:,noqa,nosec,isort:skip,mypy:"

# List of comma separated words that should not be checked.
# spelling-ignore-words =

# A path to a file that contains the private dictionary; one word per line.
# spelling-private-dict-file =

# Tells whether to store unknown words to the private dictionary (see the
# --spelling-private-dict-file option) instead of raising a message.
# spelling-store-unknown-words =

[tool.pylint.string]
# This flag controls whether inconsistent-quotes generates a warning when the
# character used as a quote delimiter is used inconsistently within a module.
# check-quote-consistency =

# This flag controls whether the implicit-str-concat should generate a warning on
# implicit string concatenation in sequences defined over several lines.
# check-str-concat-over-line-jumps =

[tool.pylint.typecheck]
# List of decorators that produce context managers, such as
# contextlib.contextmanager. Add to this list to register other decorators that
# produce valid context managers.
contextmanager-decorators = ["contextlib.contextmanager"]

# List of members which are set dynamically and missed by pylint inference
# system, and so shouldn't trigger E1101 when accessed. Python regular
# expressions are accepted.
# generated-members =

# Tells whether missing members accessed in mixin class should be ignored. A
# class is considered mixin if its name matches the mixin-class-rgx option.
# Tells whether to warn about missing members when the owner of the attribute is
# inferred to be None.
ignore-none = true

# This flag controls whether pylint should warn about no-member and similar
# checks whenever an opaque object is returned when inferring. The inference can
# return multiple potential results while evaluating a Python object, but some
# branches might not be evaluated, which results in partial inference. In that
# case, it might be useful to still emit no-member and other checks for the rest
# of the inferred objects.
ignore-on-opaque-inference = true

# List of symbolic message names to ignore for Mixin members.
ignored-checks-for-mixins = ["no-member", "not-async-context-manager", "not-context-manager", "attribute-defined-outside-init"]

# List of class names for which member attributes should not be checked (useful
# for classes with dynamically set attributes). This supports the use of
# qualified names.
ignored-classes = ["optparse.Values", "thread._local", "_thread._local"]

# Show a hint with possible names when a member name was not found. The aspect of
# finding the hint is based on edit distance.
missing-member-hint = true

# The minimum edit distance a name should have in order to be considered a
# similar match for a missing member name.
missing-member-hint-distance = 1

# The total number of similar names that should be taken in consideration when
# showing a hint for a missing member.
missing-member-max-choices = 1

# Regex pattern to define which classes are considered mixins.
mixin-class-rgx = ".*[Mm]ixin"

# List of decorators that change the signature of a decorated function.
# signature-mutators =

[tool.pylint.variables]
# List of additional names supposed to be defined in builtins. Remember that you
# should avoid defining new builtins when possible.
# additional-builtins =

# Tells whether unused global variables should be treated as a violation.
allow-global-unused-variables = true

# List of names allowed to shadow builtins
# allowed-redefined-builtins =

# List of strings which can identify a callback function by name. A callback name
# must start or end with one of those strings.
callbacks = ["cb_", "_cb"]

# A regular expression matching the name of dummy variables (i.e. expected to not
# be used).
dummy-variables-rgx = "_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_"

# Argument names that match this expression will be ignored. Default to name with
# leading underscore.
ignored-argument-names = "_.*|^ignored_|^unused_"

# Tells whether we should check for unused import in __init__ files.
# init-import =

# List of qualified module names which can have objects that can redefine
# builtins.
redefining-builtins-modules = ["six.moves", "past.builtins", "future.builtins", "io", "builtins"]