forked from Mirror/pmbootstrap
f2ca9c618e
Get rid of unused imports and such Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
116 lines
4.4 KiB
Python
116 lines
4.4 KiB
Python
# Copyright 2023 Johannes Marbach, Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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import os
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from typing import List, Sequence
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import pmb.chroot
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import pmb.config.pmaports
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from pmb.core.arch import Arch
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from pmb.types import PathString
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import pmb.helpers.cli
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import pmb.helpers.run
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import pmb.helpers.run_core
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import pmb.parse.version
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from pmb.core.context import get_context
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def _prepare_fifo():
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"""Prepare the progress fifo for reading / writing.
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:param chroot: whether to run the command inside the chroot or on the host
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:param suffix: chroot suffix. Only applies if the "chroot" parameter is
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set to True.
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:returns: A tuple consisting of the path to the fifo as needed by apk to
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write into it (relative to the chroot, if applicable) and the
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path of the fifo as needed by cat to read from it (always
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relative to the host)
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"""
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pmb.helpers.run.root(["mkdir", "-p", get_context().config.work / "tmp"])
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fifo = fifo_outside = get_context().config.work / "tmp/apk_progress_fifo"
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if os.path.exists(fifo_outside):
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pmb.helpers.run.root(["rm", "-f", fifo_outside])
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pmb.helpers.run.root(["mkfifo", fifo_outside])
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return (fifo, fifo_outside)
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def _create_command_with_progress(command, fifo):
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"""Build a full apk command from a subcommand, set up to redirect progress into a fifo.
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:param command: apk subcommand in list form
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:param fifo: path of the fifo
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:returns: full command in list form
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"""
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flags = ["--no-progress", "--progress-fd", "3"]
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command_full = [command[0]] + flags + command[1:]
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command_flat = pmb.helpers.run_core.flat_cmd([command_full])
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command_flat = f"exec 3>{fifo}; {command_flat}"
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return ["sh", "-c", command_flat]
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def _compute_progress(line):
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"""Compute the progress as a number between 0 and 1.
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:param line: line as read from the progress fifo
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:returns: progress as a number between 0 and 1
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"""
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if not line:
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return 1
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cur_tot = line.rstrip().split('/')
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if len(cur_tot) != 2:
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return 0
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cur = float(cur_tot[0])
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tot = float(cur_tot[1])
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return cur / tot if tot > 0 else 0
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def apk_with_progress(command: Sequence[PathString]):
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"""Run an apk subcommand while printing a progress bar to STDOUT.
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:param command: apk subcommand in list form
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:param chroot: whether to run commands inside the chroot or on the host
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:param suffix: chroot suffix. Only applies if the "chroot" parameter is
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set to True.
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:raises RuntimeError: when the apk command fails
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"""
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fifo, fifo_outside = _prepare_fifo()
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_command: List[str] = []
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for c in command:
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if isinstance(c, Arch):
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_command.append(str(c))
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else:
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_command.append(os.fspath(c))
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command_with_progress = _create_command_with_progress(_command, fifo)
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log_msg = " ".join(_command)
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with pmb.helpers.run.root(['cat', fifo],
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output="pipe") as p_cat:
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with pmb.helpers.run.root(command_with_progress,
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output="background") as p_apk:
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while p_apk.poll() is None:
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line = p_cat.stdout.readline().decode('utf-8')
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progress = _compute_progress(line)
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pmb.helpers.cli.progress_print(progress)
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pmb.helpers.cli.progress_flush()
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pmb.helpers.run_core.check_return_code(p_apk.returncode,
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log_msg)
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def check_outdated(version_installed, action_msg):
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"""Check if the provided alpine version is outdated.
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This depends on the alpine mirrordir (edge, v3.12, ...) related to currently checked out
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pmaports branch.
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:param version_installed: currently installed apk version, e.g. "2.12.1-r0"
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:param action_msg: string explaining what the user should do to resolve
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this
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:raises: RuntimeError if the version is outdated
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"""
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channel_cfg = pmb.config.pmaports.read_config_channel()
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mirrordir_alpine = channel_cfg["mirrordir_alpine"]
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version_min = pmb.config.apk_tools_min_version[mirrordir_alpine]
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if pmb.parse.version.compare(version_installed, version_min) >= 0:
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return
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raise RuntimeError("Found an outdated version of the 'apk' package"
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f" manager ({version_installed}, expected at least:"
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f" {version_min}). {action_msg}")
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