slashing interchange repo

download_slashing_interchange_tests.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+set -eu
+
+VERSIONS=(
+  "v5.0.0"
+)
+FLAVOURS=(
+  "eip-3076-tests-v5.0.0"
+)
+
+# signal handler (we only care about the Ctrl+C generated SIGINT)
+REL_PATH="$(dirname "${BASH_SOURCE[0]}")"
+ABS_PATH="$(cd "${REL_PATH}"; pwd)"
+cleanup() {
+	echo -e "\nCtrl+C pressed. Cleaning up."
+	cd "$ABS_PATH"
+	rm -rf tarballs tests-slashing-*
+	exit 1
+}
+trap cleanup SIGINT
+
+dl_version() {
+	[[ -z "$1" ]] && { echo "usage: dl_version() vX.Y.Z"; exit 1; }
+	version="$1"
+
+	mkdir -p "tarballs/slashing-${version}"
+	pushd "tarballs/slashing-${version}" >/dev/null
+	for flavour in "${FLAVOURS[@]}"; do
+		if [[ ! -e "${flavour}.tar.gz" ]]; then
+			echo "Downloading: slashing-${version}/${flavour}.tar.gz"
+			curl --location --remote-name --show-error \
+				"https://github.com/eth2-clients/slashing-protection-interchange-tests/releases/download/${version}/${flavour}.tar.gz" \
+				|| {
+					echo "Curl failed. Aborting"
+					rm -f "${flavour}.tar.gz"
+					exit 1
+				}
+		fi
+	done
+	popd >/dev/null
+}
+
+unpack_version() {
+	[[ -z "$1" ]] && { echo "usage: unpack_version() vX.Y.Z"; exit 1; }
+	version="$1"
+
+	dl_version "$version"
+
+	# suppress warnings when unpacking with GNU tar an archive created with BSD tar (probably on macOS)
+	EXTRA_TAR_PARAMS=""
+	tar --version | grep -qi 'gnu' && EXTRA_TAR_PARAMS="--warning=no-unknown-keyword --ignore-zeros"
+
+	if [[ ! -d "tests-slashing-${version}" ]]; then
+		for flavour in "${FLAVOURS[@]}"; do
+			echo "Unpacking: slashing-${version}/${flavour}.tar.gz"
+			mkdir -p "tests-slashing-${version}"
+			tar -C "tests-slashing-${version}" --strip-components 1 ${EXTRA_TAR_PARAMS} -xzf \
+				"tarballs/slashing-${version}/${flavour}.tar.gz" \
+				|| {
+					echo "Tar failed. Aborting."
+				  rm -rf "tests-slashing-${version}"
+					exit 1
+				}
+		done
+	fi
+}
+
+# download and unpack
+for version in "${VERSIONS[@]}"; do
+	unpack_version "$version"
+done
+
+# delete tarballs and unpacked data from old versions
+for tpath in tarballs/slashing-*; do
+	tdir="$(basename "$tpath")"
+	if [[ ! " ${VERSIONS[@]} " =~ " $tdir " ]]; then
+		rm -rf "$tpath"
+	fi
+done
+for tpath in tests-slashing-*; do
+	tver="$(echo "$tpath" | sed -e's/^tests-slashing-//')"
+	if [[ ! " ${VERSIONS[@]} " =~ " $tver " ]]; then
+		rm -rf "$tpath"
+	fi
+done