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images/management/__init__.py
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0
images/management/__init__.py
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0
images/management/commands/__init__.py
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images/management/commands/__init__.py
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35
images/management/commands/create_tasks.py
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images/management/commands/create_tasks.py
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from django.core.management.base import BaseCommand
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from images.models import Image, ImageVariant, ImageVariantTask
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class Command(BaseCommand):
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def handle(self, *args, **options):
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images = Image.objects.filter(model_version=2).all()
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images_len = len(images)
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for index, image in enumerate(images):
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print(f"Image {index}/{images_len}")
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variants = ImageVariant.objects.filter(image=image).all()
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variant_sizes = list(set(map(lambda x: (x.width, x.height), variants)))
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for image_type in ["avif", "webp", "jpegli"]:
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for variant_size in variant_sizes:
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avif_variant = [
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x
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for x in variants
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if x.width == variant_size[0]
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and x.height == variant_size[1]
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and x.file_type == image_type
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]
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if not avif_variant:
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ImageVariantTask(
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image=image,
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height=variant_size[1],
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width=variant_size[0],
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original_file_type=image.imagevariant_set.filter(
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is_full_size=True, file_type__in=["jpg", "png"]
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)
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.first()
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.file_type,
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file_type=image_type,
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).save()
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215
images/management/commands/upgrade_images.py
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images/management/commands/upgrade_images.py
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import sys
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from io import BytesIO
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from PIL import Image as PILImage
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import boto3
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from botocore.config import Config
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from django.core.management.base import BaseCommand, CommandError
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from images.models import Image, ImageVariant
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class Command(BaseCommand):
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def get_b2_resource(self, endpoint, key_id, application_key):
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b2 = boto3.resource(
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service_name="s3",
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endpoint_url=endpoint,
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aws_access_key_id=key_id,
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aws_secret_access_key=application_key,
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config=Config(signature_version="s3v4"),
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)
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bucket = b2.Bucket("kakigoori")
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return bucket
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def handle(self, *args, **options):
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images = Image.objects.filter(model_version=1).order_by("-creation_date").all()
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images_len = len(images)
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progress = 1
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print(f"{images_len} images found")
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for image in images:
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print(f"Image {progress}/{images_len}")
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try:
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print("Upgrading image %s" % image.id)
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bucket = self.get_b2_resource(
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"https://s3.eu-central-003.backblazeb2.com",
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"0032dcec6092f3e0000000021",
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"K0039Xb1GE/An9P1ccK2B+19pXrKnnU",
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)
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print("Getting original image...")
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original_image = BytesIO()
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bucket.download_fileobj(
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f"{image.backblaze_filepath}/original.jpg", original_image
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)
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original_image.seek(0)
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with PILImage.open(original_image) as im:
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image.height = im.height
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image.width = im.width
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image.save()
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print("Copying original images...")
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/original.jpg",
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},
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f"{image.backblaze_filepath}/{image.width}-{image.height}/image.jpg",
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)
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/thumbnail.jpg",
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},
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f"{image.backblaze_filepath}/{image.thumbnail_size[0]}-{image.thumbnail_size[1]}/image.jpg",
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)
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delete_objects_list = [f"{image.backblaze_filepath}/thumbnail.jpg"]
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ImageVariant(
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image=image,
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height=image.height,
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width=image.width,
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is_full_size=True,
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file_type="jpg",
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).save()
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ImageVariant(
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image=image,
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height=image.thumbnail_size[1],
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width=image.thumbnail_size[0],
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is_full_size=False,
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file_type="jpg",
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).save()
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if image.is_jpegli_available:
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print("Copying JPEGLI images...")
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/jpegli.jpg",
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},
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f"{image.backblaze_filepath}/{image.width}-{image.height}/jpegli.jpg",
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)
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/thumbnail_jpegli.jpg",
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},
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f"{image.backblaze_filepath}/{image.thumbnail_size[0]}-{image.thumbnail_size[1]}/jpegli.jpg",
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)
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ImageVariant(
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image=image,
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height=image.height,
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width=image.width,
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is_full_size=True,
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file_type="jpegli",
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).save()
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ImageVariant(
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image=image,
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height=image.thumbnail_size[0],
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width=image.thumbnail_size[1],
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is_full_size=False,
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file_type="jpegli",
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).save()
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delete_objects_list += [
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f"{image.backblaze_filepath}/jpegli.jpg",
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f"{image.backblaze_filepath}/thumbnail_jpegli.jpg",
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]
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if image.is_avif_available:
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print("Copying AVIF images...")
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/optimized.avif",
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},
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f"{image.backblaze_filepath}/{image.width}-{image.height}/image.avif",
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)
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/thumbnail.avif",
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},
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f"{image.backblaze_filepath}/{image.thumbnail_size[0]}-{image.thumbnail_size[1]}/image.avif",
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)
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ImageVariant(
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image=image,
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height=image.height,
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width=image.width,
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is_full_size=True,
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file_type="avif",
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).save()
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ImageVariant(
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image=image,
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height=image.thumbnail_size[0],
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width=image.thumbnail_size[1],
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is_full_size=False,
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file_type="avif",
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).save()
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delete_objects_list += [
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f"{image.backblaze_filepath}/optimized.avif",
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f"{image.backblaze_filepath}/thumbnail.avif",
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]
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if image.is_webp_available:
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print("Copying WebP images...")
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/optimized.webp",
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},
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f"{image.backblaze_filepath}/{image.width}-{image.height}/image.webp",
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)
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bucket.copy(
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{
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"Bucket": "kakigoori",
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"Key": f"{image.backblaze_filepath}/thumbnail.webp",
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},
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f"{image.backblaze_filepath}/{image.thumbnail_size[0]}-{image.thumbnail_size[1]}/image.webp",
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)
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ImageVariant(
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image=image,
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height=image.height,
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width=image.width,
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is_full_size=True,
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file_type="webp",
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).save()
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ImageVariant(
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image=image,
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height=image.thumbnail_size[0],
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width=image.thumbnail_size[1],
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is_full_size=False,
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file_type="webp",
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).save()
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delete_objects_list += [
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f"{image.backblaze_filepath}/optimized.webp",
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f"{image.backblaze_filepath}/thumbnail.webp",
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]
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print("Saving...")
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image.model_version = 2
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image.save()
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print("Deleting old files...")
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bucket.delete_objects(
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Delete={"Objects": [{"Key": x} for x in delete_objects_list]}
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)
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progress += 1
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except KeyboardInterrupt:
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sys.exit(1)
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except:
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progress += 1
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pass
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