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early-exit optimization using a HEAD request to check for existence f… #2

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12 changes: 11 additions & 1 deletion src/scripts/save-cache.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,16 @@ echo "Cache Path is $CACHE_PATH"
# Check if the cache path exists
if [ -d "$CACHE_PATH" ]; then

# Check if cache already exists in S3 before compressing
echo "Checking if cache already exists in S3..."
S3_OBJECT_PATH="s3://$BUCKET_NAME/$CACHE_KEY/$CACHE_KEY.tar.gz"

if aws s3api head-object --bucket "$BUCKET_NAME" --key "$CACHE_KEY/$CACHE_KEY.tar.gz" > /dev/null 2>&1; then
echo "Cache key '$CACHE_KEY' already exists in S3. Skipping compression and upload."
exit 0
fi

echo "Cache not found in S3. Proceeding with compression..."
echo "Cache path exists. Archiving..."
# Create the archive
tar -czf "$CACHE_KEY.tar.gz" "$CACHE_PATH"
Expand All @@ -21,7 +31,7 @@ if [ -d "$CACHE_PATH" ]; then
aws configure set default.s3.multipart_threshold "$S3_MULTIPART_THRESHOLD"

# Upload the archive to the S3 bucket
aws s3 cp "$CACHE_KEY.tar.gz" "s3://$BUCKET_NAME/$CACHE_KEY/$CACHE_KEY.tar.gz"
aws s3 cp "$CACHE_KEY.tar.gz" "$S3_OBJECT_PATH"
echo "Cache archive uploaded to S3."
else
echo "Cache path does not exist. Skipping upload."
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