Fix mirrors hang when /status endpoint is down

[h8d13]

Aims to fix #4029 or start a discussion about it (I've had this when the endpoint is down).

By assigning a bool to the def load_remote_mirrors in the parent (which was naïve about the state).

This can be tested on the branch above and using something similar to block URL (temporarily):

echo "127.0.0.1 archlinux.org" | sudo tee -a /etc/hosts or when it's down like currently (15:00 UTC+1).

Second thing I'm wondering about:

  def get_status_by_region(self, region: str, speed_sort: bool) -> list[MirrorStatusEntryV3]:
      mappings = self._mappings()
      region_list = mappings[region]

      # Only sort if we have remote mirror data with score/speed info
      # Local mirrors lack this data and can be modified manually before-hand
      # Or reflector potentially ran already
      if self._fetched_remote and speed_sort:
          # original return
          return sorted(region_list, key=lambda mirror: (mirror.score, mirror.speed))
      # just return as-is without sorting?
      return region_list

Another day another DDoS ? I'll ping thsi for the funny lore too #3974

[h8d13]

Also had fun on another branch where we can use mirror endpoint from archlinux.de (or other models?)

master...h8d13:archinstall-patch:refs/heads/dot-mirrors-de

[Torxed]

We could also fall back to /etc/pacman.d/mirrorlist as it should contain a new enough mirror list when we can't use the online lookup.

And the regions are "there" in the shape of comments, so we'd just need to parse "which region are we currently on" and all subsequent mirror entries (even if commented out) belong to that region.

[h8d13]

It is already the fallback behavior problem was that timeout didn't work and the parent logic didn't know about the child status

The extra options are totally optional and can be cherry picked if you don't want them (today's commits)

[Torxed]

Ah, I think I'm slowly waking up and getting the hang of this.

So would the --offline flag be sufficient instead of the following, or do we need the fine tuning of arguments and code logic:

archinstall/archinstall/lib/args.py

Lines 397 to 402 in 421892b

	parser.add_argument(
	'--local-mirr',
	action='store_true',
	default=False,
	help='Disabled mirrors fetch and use local existing file instead.',
	)

I'm not against it, just wondering if --offline could serve well here, as it would help with other online issues too.

[Torxed]

The default timeout can probably be increased to 15 or even 20.
As I know some regions struggle with latency and speeds.