116 lines
3.5 KiB
Python
116 lines
3.5 KiB
Python
# Copyright 2023 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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""" Save, read, verify workdir state related information in $WORK/workdir.cfg,
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for example the init dates of the chroots. This is not saved in
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pmbootstrap.cfg, because pmbootstrap.cfg is not tied to a specific work
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dir. """
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import configparser
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import os
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import time
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import pmb.config
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import pmb.config.pmaports
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def chroot_save_init(args, suffix):
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""" Save the chroot initialization data in $WORK/workdir.cfg. """
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# Read existing cfg
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cfg = configparser.ConfigParser()
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path = args.work + "/workdir.cfg"
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if os.path.isfile(path):
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cfg.read(path)
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# Create sections
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for key in ["chroot-init-dates", "chroot-channels"]:
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if key not in cfg:
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cfg[key] = {}
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# Update sections
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channel = pmb.config.pmaports.read_config(args)["channel"]
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cfg["chroot-channels"][suffix] = channel
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cfg["chroot-init-dates"][suffix] = str(int(time.time()))
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# Write back
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with open(path, "w") as handle:
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cfg.write(handle)
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def chroots_outdated(args):
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""" Check if init dates from workdir.cfg indicate that any chroot is
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outdated.
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:returns: True if any of the chroots are outdated and should be zapped,
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False otherwise """
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# Skip if workdir.cfg doesn't exist
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path = args.work + "/workdir.cfg"
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if not os.path.exists(path):
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return False
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cfg = configparser.ConfigParser()
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cfg.read(path)
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key = "chroot-init-dates"
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if key not in cfg:
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return False
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date_outdated = time.time() - pmb.config.chroot_outdated
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for suffix in cfg[key]:
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date_init = int(cfg[key][suffix])
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if date_init <= date_outdated:
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return True
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return False
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def chroot_check_channel(args, suffix):
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path = args.work + "/workdir.cfg"
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msg_again = "Run 'pmbootstrap zap' to delete your chroots and try again."
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msg_unknown = ("Could not figure out on which release channel the"
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f" '{suffix}' chroot is.")
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if not os.path.exists(path):
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raise RuntimeError(f"{msg_unknown} {msg_again}")
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cfg = configparser.ConfigParser()
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cfg.read(path)
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key = "chroot-channels"
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if key not in cfg or suffix not in cfg[key]:
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raise RuntimeError(f"{msg_unknown} {msg_again}")
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channel = pmb.config.pmaports.read_config(args)["channel"]
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channel_cfg = cfg[key][suffix]
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if channel != channel_cfg:
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raise RuntimeError(f"Chroot '{suffix}' was created for the"
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f" '{channel_cfg}' channel, but you are on the"
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f" '{channel}' channel now. {msg_again}")
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def clean(args):
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""" Remove obsolete data data from workdir.cfg.
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:returns: None if workdir does not exist,
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True if config was rewritten,
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False if config did not change """
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# Skip if workdir.cfg doesn't exist
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path = args.work + "/workdir.cfg"
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if not os.path.exists(path):
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return None
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# Read
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cfg = configparser.ConfigParser()
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cfg.read(path)
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# Remove entries for deleted chroots
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changed = False
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for key in ["chroot-init-dates", "chroot-channels"]:
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if key not in cfg:
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continue
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for suffix in cfg[key]:
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path_suffix = args.work + "/chroot_" + suffix
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if os.path.exists(path_suffix):
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continue
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changed = True
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del cfg[key][suffix]
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# Write back
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if changed:
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with open(path, "w") as handle:
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cfg.write(handle)
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return changed
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