forked from Mirror/pmbootstrap
1d9bbd613e
We currently lazily initialize the chroot's on first use, plus a few bonus calls to init. However, there are some instances where we actually don't want the chroot to be initialised (mostly to break recursion loops). Simplify the codebase by removing all of this, and just calling pmb.chroot.init() where it's needed. In addition, print a warning if init() is called multiple times for one chroot. This should help us catch these instances if they crop up again. Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
103 lines
4 KiB
Python
103 lines
4 KiB
Python
# Copyright 2023 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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from pmb.helpers import logging
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import socket
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from contextlib import closing
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import pmb.chroot
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from pmb.core.types import PmbArgs
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import pmb.helpers.mount
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import pmb.install.losetup
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import pmb.parse.arch
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from pmb.core import Chroot, ChrootType
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def kill_adb(args: PmbArgs):
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"""
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Kill adb daemon if it's running.
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"""
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port = 5038
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with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
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if sock.connect_ex(("127.0.0.1", port)) == 0:
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pmb.chroot.root(args, ["adb", "-P", str(port), "kill-server"])
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def kill_sccache(args: PmbArgs):
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"""
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Kill sccache daemon if it's running. Unlike ccache it automatically spawns
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a daemon when you call it and exits after some time of inactivity.
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"""
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port = 4226
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with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
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if sock.connect_ex(("127.0.0.1", port)) == 0:
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pmb.chroot.root(args, ["sccache", "--stop-server"])
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def shutdown_cryptsetup_device(args: PmbArgs, name: str):
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"""
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:param name: cryptsetup device name, usually "pm_crypt" in pmbootstrap
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"""
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if not (Chroot.native() / "dev/mapper" / name).exists():
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return
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pmb.chroot.apk.install(args, ["cryptsetup"])
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status = pmb.chroot.root(args, ["cryptsetup", "status", name],
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output_return=True, check=False)
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if not status:
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logging.warning("WARNING: Failed to run cryptsetup to get the status"
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" for " + name + ", assuming it is not mounted"
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" (shutdown fails later if it is)!")
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return
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if status.startswith("/dev/mapper/" + name + " is active."):
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pmb.chroot.root(args, ["cryptsetup", "luksClose", name])
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elif status.startswith("/dev/mapper/" + name + " is inactive."):
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# When "cryptsetup status" fails, the device is not mounted and we
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# have a left over file (#83)
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pmb.chroot.root(args, ["rm", "/dev/mapper/" + name])
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else:
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raise RuntimeError("Failed to parse 'cryptsetup status' output!")
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def shutdown(args: PmbArgs, only_install_related=False):
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# Stop daemons
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kill_adb(args)
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kill_sccache(args)
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chroot = Chroot.native()
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# Umount installation-related paths (order is important!)
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pmb.helpers.mount.umount_all(args, chroot / "mnt/install")
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shutdown_cryptsetup_device(args, "pm_crypt")
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# Umount all losetup mounted images
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if pmb.helpers.mount.ismount(chroot / "dev/loop-control"):
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for path_outside in (chroot / "/home/pmos/rootfs").glob("*.img"):
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path = path_outside.relative_to(chroot.path)
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pmb.install.losetup.umount(args, path)
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# Umount device rootfs and installer chroots
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for chroot_type in [ChrootType.ROOTFS, ChrootType.INSTALLER]:
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chroot = Chroot(chroot_type, args.device)
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if chroot.path.exists():
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pmb.helpers.mount.umount_all(args, chroot.path)
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# Remove "in-pmbootstrap" marker from all chroots. This marker indicates
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# that pmbootstrap has set up all mount points etc. to run programs inside
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# the chroots, but we want it gone afterwards (e.g. when the chroot
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# contents get copied to a rootfs / installer image, or if creating an
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# android recovery zip from its contents).
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for marker in pmb.config.work.glob("chroot_*/in-pmbootstrap"):
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pmb.helpers.run.root(args, ["rm", marker])
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if not only_install_related:
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# Umount all folders inside work dir
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# The folders are explicitly iterated over, so folders symlinked inside
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# work dir get umounted as well (used in test_pkgrel_bump.py, #1595)
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for path in pmb.config.work.glob("*"):
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pmb.helpers.mount.umount_all(args, path)
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# Clean up the rest
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for arch in pmb.config.build_device_architectures:
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if pmb.parse.arch.cpu_emulation_required(arch):
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pmb.chroot.binfmt.unregister(args, arch)
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logging.debug("Shutdown complete")
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