106 lines
3.2 KiB
Python
106 lines
3.2 KiB
Python
import json
|
|
import logging
|
|
|
|
from data import model
|
|
from data.database import ImageStorage
|
|
from app import app, storage as store
|
|
from data.database import db
|
|
from gzip import GzipFile
|
|
from StringIO import StringIO
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def backfill_sizes_from_json():
|
|
query = (ImageStorage
|
|
.select()
|
|
.where(ImageStorage.uncompressed_size == None, ImageStorage.uploading == False)
|
|
.limit(100))
|
|
|
|
total = 0
|
|
missing = 0
|
|
batch_processed = 1
|
|
|
|
while batch_processed > 0:
|
|
batch_processed = 0
|
|
with app.config['DB_TRANSACTION_FACTORY'](db):
|
|
for image_storage in query.clone():
|
|
total += 1
|
|
batch_processed += 1
|
|
|
|
if (total - 1) % 100 == 0:
|
|
logger.debug('Storing entry: %s', total)
|
|
|
|
# Lookup the JSON for the image.
|
|
uuid = image_storage.uuid
|
|
with_locations = model.get_storage_by_uuid(uuid)
|
|
|
|
json_string = store.get_content(with_locations.locations, store.image_json_path(uuid))
|
|
json_data = json.loads(json_string)
|
|
size = json_data.get('Size', json_data.get('size', -1))
|
|
|
|
if size == -1:
|
|
missing += 1
|
|
|
|
logger.debug('Missing entry %s (%s/%s)', uuid, missing, total)
|
|
|
|
image_storage.uncompressed_size = size
|
|
image_storage.save()
|
|
|
|
|
|
def backfill_sizes_from_data():
|
|
storage_ids = list(ImageStorage
|
|
.select(ImageStorage.uuid)
|
|
.where(ImageStorage.uncompressed_size == -1, ImageStorage.uploading == False))
|
|
|
|
counter = 0
|
|
for uuid in [s.uuid for s in storage_ids]:
|
|
counter += 1
|
|
|
|
# Load the storage with locations.
|
|
logger.debug('Loading entry: %s (%s/%s)', uuid, counter, len(storage_ids))
|
|
with_locations = model.get_storage_by_uuid(uuid)
|
|
layer_size = -2
|
|
|
|
# Read the layer from backing storage.
|
|
logger.debug('Reading entry: %s (%s bytes)', uuid, with_locations.image_size)
|
|
try:
|
|
layer_data = store.get_content(with_locations.locations, store.image_layer_path(uuid))
|
|
except Exception as ex:
|
|
logger.debug('Could not read entry: %s. Reason: %s', uuid, ex)
|
|
continue
|
|
|
|
# Calculate the uncompressed size.
|
|
try:
|
|
layer_stream = StringIO(layer_data)
|
|
with GzipFile(fileobj=layer_stream, mode='rb') as gzip_file:
|
|
layer_size = len(gzip_file.read())
|
|
logger.debug('%s' % gzip_file.size)
|
|
|
|
layer_stream.close()
|
|
except Exception as ex:
|
|
logger.debug('Could not gunzip entry: %s. Reason: %s', uuid, ex)
|
|
continue
|
|
|
|
# Write the size to the image storage. We do so under a transaction AFTER checking to
|
|
# make sure the image storage still exists and has not changed.
|
|
logger.debug('Writing entry: %s. Size: %s', uuid, layer_size)
|
|
with app.config['DB_TRANSACTION_FACTORY'](db):
|
|
try:
|
|
current_record = model.get_storage_by_uuid(uuid)
|
|
except:
|
|
# Record no longer exists.
|
|
continue
|
|
|
|
if not current_record.uploading and current_record.uncompressed_size == -1:
|
|
current_record.uncompressed_size = layer_size
|
|
current_record.save()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
logging.basicConfig(level=logging.DEBUG)
|
|
logging.getLogger('boto').setLevel(logging.CRITICAL)
|
|
|
|
backfill_sizes_from_json()
|
|
backfill_sizes_from_data()
|