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pmbootstrap/pmb/build/autodetect.py

108 lines
3.3 KiB
Python

# Copyright 2023 Oliver Smith
# SPDX-License-Identifier: GPL-3.0-or-later
from pathlib import Path
from pmb.core.arch import Arch
from pmb.helpers import logging
from typing import Any, Dict, Optional, Union
import pmb.config
import pmb.chroot.apk
import pmb.helpers.pmaports
from pmb.core import Chroot
from pmb.core.context import get_context
from pmb.meta import Cache
# FIXME (#2324): type hint Arch
def arch_from_deviceinfo(pkgname, aport: Path) -> Optional[Arch]:
"""
The device- packages are noarch packages. But it only makes sense to build
them for the device's architecture, which is specified in the deviceinfo
file.
:returns: None (no deviceinfo file)
arch from the deviceinfo (e.g. "armhf")
"""
# Require a deviceinfo file in the aport
if not pkgname.startswith("device-"):
return None
deviceinfo = aport / "deviceinfo"
if not deviceinfo.exists():
return None
# Return its arch
device = pkgname.split("-", 1)[1]
arch = pmb.parse.deviceinfo(device).arch
logging.verbose(f"{pkgname}: arch from deviceinfo: {arch}")
return arch
@Cache("package")
def arch(package: Union[str, Dict[str, Any]]):
"""
Find a good default in case the user did not specify for which architecture
a package should be built.
:param package: The name of the package or parsed APKBUILD
:returns: arch string like "x86_64" or "armhf". Preferred order, depending
on what is supported by the APKBUILD:
* native arch
* device arch (this will be preferred instead if build_default_device_arch is true)
* first arch in the APKBUILD
"""
pkgname = package["pkgname"] if isinstance(package, dict) else package
aport = pmb.helpers.pmaports.find(pkgname)
if not aport:
raise FileNotFoundError(f"APKBUILD not found for {pkgname}")
ret = arch_from_deviceinfo(pkgname, aport)
if ret:
return ret
apkbuild = pmb.parse.apkbuild(aport) if isinstance(package, str) else package
arches = apkbuild["arch"]
deviceinfo = pmb.parse.deviceinfo()
if get_context().config.build_default_device_arch:
preferred_arch = deviceinfo.arch
preferred_arch_2nd = Arch.native()
else:
preferred_arch = Arch.native()
preferred_arch_2nd = deviceinfo.arch
if "noarch" in arches or "all" in arches or preferred_arch in arches:
return preferred_arch
if preferred_arch_2nd in arches:
return preferred_arch_2nd
try:
arch_str = apkbuild["arch"][0]
return Arch.from_str(arch_str) if arch_str else Arch.native()
except IndexError:
return Arch.native()
def chroot(apkbuild: Dict[str, str], arch: Arch) -> Chroot:
if arch == Arch.native():
return Chroot.native()
if "pmb:cross-native" in apkbuild["options"]:
return Chroot.native()
return Chroot.buildroot(arch)
def crosscompile(apkbuild, arch: Arch):
"""
:returns: None, "native", "crossdirect"
"""
if not get_context().cross:
return None
if not arch.cpu_emulation_required():
return None
if arch.is_native() or "pmb:cross-native" in apkbuild["options"]:
return "native"
if "!pmb:crossdirect" in apkbuild["options"]:
return None
return "crossdirect"