pyodide/pyodide_build/common.py

50 lines
1.4 KiB
Python

from pathlib import Path
from typing import Optional, Set
ROOTDIR = Path(__file__).parents[1].resolve() / "tools"
TARGETPYTHON = ROOTDIR / ".." / "cpython" / "installs" / "python-3.8.2"
DEFAULTCFLAGS = ""
# fmt: off
DEFAULTLDFLAGS = " ".join(
[
"-O2",
"-s", "BINARYEN_METHOD='native-wasm'",
"-Werror",
"-s", "EMULATED_FUNCTION_POINTERS=1",
"-s", "EMULATE_FUNCTION_POINTER_CASTS=1",
"-s", "SIDE_MODULE=1",
"-s", "WASM=1",
"-s", "BINARYEN_TRAP_MODE='clamp'",
"--memory-init-file", "0",
"-s", "LINKABLE=1",
"-s", "EXPORT_ALL=1",
]
)
# fmt: on
def parse_package(package):
# Import yaml here because pywasmcross needs to run in the built native
# Python, which won't have PyYAML
import yaml
# TODO: Validate against a schema
with open(package) as fd:
return yaml.safe_load(fd)
def _parse_package_subset(query: Optional[str]) -> Optional[Set[str]]:
"""Parse the list of packages specified with PYODIDE_PACKAGES env var.
Also add the list of mandatory packages: ['micropip', 'distlib']
Returns:
a set of package names to build or None.
"""
if query is None:
return None
packages = query.split(",")
packages = [el.strip() for el in packages]
packages = ["micropip", "distlib"] + packages
return set(packages)