pyproject.toml

[build-system]
requires = [
  # NOTE: The following build dependencies are necessary for initial
  # NOTE: provisioning of the in-tree build backend located under
  # NOTE: `packaging/pep517_backend/`.
  "expandvars",
  "setuptools >= 47",  # Minimum required for `version = attr:`
  "tomli; python_version < '3.11'",
]
backend-path = ["packaging"]  # requires `pip >= 20` or `pep517 >= 0.6.0`
build-backend = "pep517_backend.hooks"  # wraps `setuptools.build_meta`

[tool.local.cythonize]
# This attr can contain multiple globs
src = ["yarl/*.pyx"]

[tool.local.cythonize.env]
# Env vars provisioned during cythonize call
#CFLAGS = "-DCYTHON_TRACE=1 ${CFLAGS}"
#LDFLAGS = "${LDFLAGS}"

[tool.local.cythonize.flags]
# This section can contain the following booleans:
# * annotate — generate annotated HTML page for source files
# * build — build extension modules using distutils
# * inplace — build extension modules in place using distutils (implies -b)
# * force — force recompilation
# * quiet — be less verbose during compilation
# * lenient — increase Python compat by ignoring some compile time errors
# * keep-going — compile as much as possible, ignore compilation failures
annotate = false
build = false
inplace = true
force = true
quiet = false
lenient = false
keep-going = false

[tool.local.cythonize.kwargs]
# This section can contain args that have values:
# * exclude=PATTERN      exclude certain file patterns from the compilation
# * parallel=N    run builds in N parallel jobs (default: calculated per system)
# exclude = "**.py"
# parallel = 12

[tool.local.cythonize.kwargs.directive]
# This section can contain compiler directives
# Ref: https://github.com/cython/cython/blob/d6e6de9/Cython/Compiler/Options.py#L170-L242
embedsignature = "True"
emit_code_comments = "True"
linetrace = "True"
profile = "True"

[tool.local.cythonize.kwargs.compile-time-env]
# This section can contain compile time env vars

[tool.local.cythonize.kwargs.option]
# This section can contain cythonize options
# Ref: https://github.com/cython/cython/blob/d6e6de9/Cython/Compiler/Options.py#L694-L730
#docstrings = "True"
#embed_pos_in_docstring = "True"
#warning_errors = "True"
#error_on_unknown_names = "True"
#error_on_uninitialized = "True"

[tool.cibuildwheel]
build-frontend = "build"
environment = { PIP_CONSTRAINT="requirements/cython.txt" }
before-test = [
  # NOTE: Attempt to have pip pre-compile PyYAML wheel with our build
  # NOTE: constraints unset. The hope is that pip will cache that wheel
  # NOTE: and the test env provisioning stage will pick up PyYAML from
  # NOTE: said cache rather than attempting to build it with a conflicting.
  # NOTE: Version of Cython.
  # Ref: https://github.com/pypa/cibuildwheel/issues/1666
  "PIP_CONSTRAINT= pip install PyYAML",
]
test-requires = "-r requirements/ci.txt"
test-command = "pytest {project}/tests"
# don't build PyPy wheels, install from source instead
skip = "pp*"

[tool.cibuildwheel.config-settings]
--pure-python = "false"

[tool.cibuildwheel.windows]
before-test = []  # Windows cmd has different syntax and pip chooses wheels