83 lines
2.9 KiB
Python
83 lines
2.9 KiB
Python
import datetime
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import sys
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from django.conf import settings
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from django.core.management.base import BaseCommand
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from django.db.models import Q
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from django.utils import timezone
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from activities.models import Post
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class Command(BaseCommand):
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help = "Prunes posts that are old, not local and have no local interaction"
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def add_arguments(self, parser):
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parser.add_argument(
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"--number",
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"-n",
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type=int,
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default=500,
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help="The maximum number of posts to prune at once",
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)
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def handle(self, number: int, *args, **options):
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if not settings.SETUP.REMOTE_PRUNE_HORIZON:
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print("Pruning has been disabled as REMOTE_PRUNE_HORIZON=0")
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sys.exit(2)
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# Find a set of posts that match the initial criteria
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print(f"Running query to find up to {number} old posts...")
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posts = (
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Post.objects.filter(
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local=False,
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created__lt=timezone.now()
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- datetime.timedelta(days=settings.SETUP.REMOTE_PRUNE_HORIZON),
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)
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.exclude(
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Q(interactions__identity__local=True)
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| Q(visibility=Post.Visibilities.mentioned)
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)
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.order_by("?")[:number]
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)
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post_ids_and_uris = dict(posts.values_list("object_uri", "id"))
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print(f" found {len(post_ids_and_uris)}")
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# Fetch all of their replies and exclude any that have local replies
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print("Excluding ones with local replies...")
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replies = Post.objects.filter(
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local=True,
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in_reply_to__in=post_ids_and_uris.keys(),
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).values_list("in_reply_to", flat=True)
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for reply in replies:
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if reply and reply in post_ids_and_uris:
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del post_ids_and_uris[reply]
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print(f" narrowed down to {len(post_ids_and_uris)}")
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# Fetch all the posts that they are replies to, and don't delete ones
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# that are replies to local posts
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print("Excluding ones that are replies to local posts...")
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in_reply_tos = (
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Post.objects.filter(id__in=post_ids_and_uris.values())
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.values_list("in_reply_to", flat=True)
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.distinct()
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)
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local_object_uris = Post.objects.filter(
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local=True, object_uri__in=in_reply_tos
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).values_list("object_uri", flat=True)
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final_post_ids = list(
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Post.objects.filter(id__in=post_ids_and_uris.values())
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.exclude(in_reply_to__in=local_object_uris)
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.values_list("id", flat=True)
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)
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print(f" narrowed down to {len(final_post_ids)}")
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# Delete them
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if not final_post_ids:
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sys.exit(1)
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print("Deleting...")
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_, deleted = Post.objects.filter(id__in=final_post_ids).delete()
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print("Deleted:")
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for model, model_deleted in deleted.items():
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print(f" {model}: {model_deleted}")
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