#!/usr/bin/env bash set -eo pipefail if [[ -z "$AZURE_STORAGE_CONNECTION_STRING" ]]; then echo "AZURE_STORAGE_CONNECTION_STRING is required" exit 1 fi if [[ -z "$CONTAINER_NAME" ]]; then echo "CONTAINER_NAME is required" exit 1 fi if [[ -z "$BLOB_NAME" ]]; then echo "BLOB_NAME is required" exit 1 fi if [[ "$SUDO" = true ]]; then SUDO_COMMAND=(sudo) else SUDO_COMMAND=() fi CACHE_PATH=${CACHE_PATH:-$BLOB_NAME} echo "--> Checking whether blob exists" EXISTS=$( az storage blob exists \ --container-name "$CONTAINER_NAME" \ --name "$BLOB_NAME" \ --connection-string "$AZURE_STORAGE_CONNECTION_STRING" \ --output tsv ) echo "$EXISTS" if [[ "$EXISTS" = True ]]; then echo "--> Downloading and extracting blob" mkdir -p "$CACHE_PATH" if az storage blob download \ --container-name "$CONTAINER_NAME" \ --name "$BLOB_NAME" \ --no-progress \ | "${SUDO_COMMAND[@]}" env ZSTD_NBTHREADS=0 tar -C "$CACHE_PATH" -x --zstd -f -; then echo "Extracted" echo "cache-hit=true" >> "$GITHUB_OUTPUT" else echo "azure blob is probably corrupted, deleting it..." az storage blob delete \ --container-name "$CONTAINER_NAME" \ --name "$BLOB_NAME" echo "cache-hit=false" >> "$GITHUB_OUTPUT" fi else echo "cache-hit=false" >> "$GITHUB_OUTPUT" fi