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7cef898948
- For ease of maintenance and testing. Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
63 lines
1.7 KiB
Python
63 lines
1.7 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Utilities for regular updates and dist-upgrades."""
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import re
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import subprocess
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from plinth.modules.apache.components import check_url
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RELEASE_FILE_URL = \
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'https://deb.debian.org/debian/dists/{}/Release'
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DIST_UPGRADE_REQUIRED_FREE_SPACE = 5000000
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def check_auto() -> bool:
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"""Return whether automatic updates are enabled."""
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arguments = [
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'apt-config', 'shell', 'UpdateInterval',
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'APT::Periodic::Update-Package-Lists'
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]
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output = subprocess.check_output(arguments).decode()
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update_interval = 0
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match = re.match(r"UpdateInterval='(.*)'", output)
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if match:
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update_interval = int(match.group(1))
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return bool(update_interval)
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def get_http_protocol() -> str:
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"""Return the protocol to use for newly added repository sources."""
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try:
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from plinth.modules.torproxy import utils
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if utils.is_apt_transport_tor_enabled():
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return 'tor+http'
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except Exception:
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pass
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return 'http'
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def is_release_file_available(protocol: str, dist: str,
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backports=False) -> bool:
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"""Return whether the release for dist[-backports] is available."""
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wrapper = None
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if protocol == 'tor+http':
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wrapper = 'torsocks'
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if backports:
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dist += '-backports'
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try:
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return check_url(RELEASE_FILE_URL.format(dist), wrapper=wrapper)
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except FileNotFoundError:
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return False
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def is_sufficient_free_space() -> bool:
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"""Return whether there is sufficient free space for dist upgrade."""
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output = subprocess.check_output(['df', '--output=avail', '/'])
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free_space = int(output.decode().split('\n')[1])
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return free_space >= DIST_UPGRADE_REQUIRED_FREE_SPACE
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