forked from Mirror/pmbootstrap
866e5bcfab
Move pmb/parse/arch.py over to core and refactor it as an Arch type, similar to how Chroot was done. Fix all the uses (that I can find) of arch in the codebase that need adjusting. The new Arch type is an Enum, making it clear what architectures can be represented and making it much easier to reason about. Since we support ~5 (kinda) different representations of an Architecture (Alpine, Kernel, target triple, platform, and QEMU), we now formalise that the Alpine format is what we represent internally, with methods to convert to any of the others as-needed. Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
101 lines
2.9 KiB
Python
101 lines
2.9 KiB
Python
# Copyright 2023 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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from pathlib import Path
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from pmb.core.arch import Arch
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from pmb.helpers import logging
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from typing import Dict, Optional
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import pmb.config
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import pmb.chroot.apk
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import pmb.helpers.pmaports
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from pmb.core import Chroot, ChrootType, get_context
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# FIXME (#2324): type hint Arch
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def arch_from_deviceinfo(pkgname, aport: Path) -> Optional[str]:
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"""
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The device- packages are noarch packages. But it only makes sense to build
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them for the device's architecture, which is specified in the deviceinfo
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file.
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:returns: None (no deviceinfo file)
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arch from the deviceinfo (e.g. "armhf")
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"""
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# Require a deviceinfo file in the aport
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if not pkgname.startswith("device-"):
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return None
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deviceinfo = aport / "deviceinfo"
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if not deviceinfo.exists():
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return None
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# Return its arch
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device = pkgname.split("-", 1)[1]
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arch = pmb.parse.deviceinfo(device).arch
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logging.verbose(pkgname + ": arch from deviceinfo: " + arch)
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return arch
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def arch(pkgname: str):
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"""
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Find a good default in case the user did not specify for which architecture
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a package should be built.
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:returns: arch string like "x86_64" or "armhf". Preferred order, depending
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on what is supported by the APKBUILD:
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* native arch
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* device arch (this will be preferred instead if build_default_device_arch is true)
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* first arch in the APKBUILD
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"""
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aport = pmb.helpers.pmaports.find(pkgname)
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if not aport:
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raise FileNotFoundError(f"APKBUILD not found for {pkgname}")
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ret = arch_from_deviceinfo(pkgname, aport)
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if ret:
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return ret
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apkbuild = pmb.parse.apkbuild(aport)
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arches = apkbuild["arch"]
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deviceinfo = pmb.parse.deviceinfo()
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if get_context().config.build_default_device_arch:
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preferred_arch = deviceinfo.arch
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preferred_arch_2nd = Arch.native()
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else:
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preferred_arch = Arch.native()
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preferred_arch_2nd = deviceinfo.arch
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if "noarch" in arches or "all" in arches or preferred_arch in arches:
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return preferred_arch
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if preferred_arch_2nd in arches:
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return preferred_arch_2nd
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try:
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return apkbuild["arch"][0]
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except IndexError:
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return None
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def chroot(apkbuild: Dict[str, str], arch: Arch) -> Chroot:
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if arch == Arch.native():
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return Chroot.native()
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if "pmb:cross-native" in apkbuild["options"]:
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return Chroot.native()
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return Chroot.buildroot(arch)
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def crosscompile(apkbuild, arch: Arch, suffix: Chroot):
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"""
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:returns: None, "native", "crossdirect"
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"""
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if not get_context().cross:
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return None
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if not arch.cpu_emulation_required():
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return None
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if suffix.type == ChrootType.NATIVE:
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return "native"
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if "!pmb:crossdirect" in apkbuild["options"]:
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return None
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return "crossdirect"
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