import os
import shutil
import subprocess
import sys
from subprocess import SubprocessError
from typing import List, Dict
import toml
create_only_options = [
"sdist-include",
]
available_options = [
"bindings",
"cargo-extra-args",
"compatibility",
"manylinux",
"rustc-extra-args",
"skip-auditwheel",
"strip",
]
def get_config() -> Dict[str, str]:
with open("pyproject.toml") as fp:
pyproject_toml = toml.load(fp)
return pyproject_toml.get("tool", {}).get("maturin", {})
def get_config_options() -> List[str]:
config = get_config()
options = []
for key, value in config.items():
if key in create_only_options:
continue
if key not in available_options:
sys.stderr.write(f"WARNING: {key} is not a recognized option for maturin\n")
options.append("--{}={}".format(key, value))
return options
def build_wheel(wheel_directory, config_settings=None, metadata_directory=None):
command = ["maturin", "pep517", "build-wheel", "-i", sys.executable]
command.extend(get_config_options())
print("Running `{}`".format(" ".join(command)))
sys.stdout.flush()
result = subprocess.run(command, stdout=subprocess.PIPE)
sys.stdout.buffer.write(result.stdout)
sys.stdout.flush()
if result.returncode != 0:
sys.stderr.write(
f"Error: command {command} returned non-zero exit status {result.returncode}\n"
)
sys.exit(1)
output = result.stdout.decode(errors="replace")
wheel_path = output.strip().splitlines()[-1]
filename = os.path.basename(wheel_path)
shutil.copy2(wheel_path, os.path.join(wheel_directory, filename))
return filename
def build_sdist(sdist_directory, config_settings=None):
command = ["maturin", "pep517", "write-sdist", "--sdist-directory", sdist_directory]
print("Running `{}`".format(" ".join(command)))
sys.stdout.flush()
result = subprocess.run(command, stdout=subprocess.PIPE)
sys.stdout.buffer.write(result.stdout)
sys.stdout.flush()
if result.returncode != 0:
sys.stderr.write(
f"Error: command {command} returned non-zero exit status {result.returncode}\n"
)
sys.exit(1)
output = result.stdout.decode(errors="replace")
return output.strip().splitlines()[-1]
def get_requires_for_build_wheel(config_settings=None):
if get_config().get("bindings") == "cffi":
return ["cffi"]
else:
return []
def get_requires_for_build_sdist(config_settings=None):
return []
def prepare_metadata_for_build_wheel(metadata_directory, config_settings=None):
print("Checking for Rust toolchain....")
is_cargo_installed = False
try:
output = subprocess.check_output(["cargo", "--version"]).decode(
"utf-8", "ignore"
)
if "cargo" in output:
is_cargo_installed = True
except (FileNotFoundError, SubprocessError):
pass
if not is_cargo_installed:
sys.stderr.write(
"\nCargo, the Rust package manager, is not installed or is not on PATH.\n"
"This package requires Rust and Cargo to compile extensions. Install it through\n"
"the system's package manager or via https://rustup.rs/\n\n"
)
sys.exit(1)
command = [
"maturin",
"pep517",
"write-dist-info",
"--metadata-directory",
metadata_directory,
"--interpreter",
sys.executable,
]
command.extend(get_config_options())
print("Running `{}`".format(" ".join(command)))
try:
output = subprocess.check_output(command)
except subprocess.CalledProcessError as e:
sys.stderr.write(f"Error running maturin: {e}\n")
sys.exit(1)
sys.stdout.buffer.write(output)
sys.stdout.flush()
output = output.decode(errors="replace")
return output.strip().splitlines()[-1]