sync script for ros2

ros2.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# requires: wget curl
+set -e
+set -o pipefail
+
+_here=`dirname $(realpath $0)`
+. ${_here}/helpers/apt-download
+
+[ -z "${LOADED_APT_DOWNLOAD}" ] && (echo "failed to load apt-download"; exit 1)
+
+BASE_PATH="${TUNASYNC_WORKING_DIR}"
+BASE_URL=${TUNASYNC_UPSTREAM_URL:-"http://packages.ros.org/ros2"}
+
+APT_PATH="${BASE_PATH}/ubuntu"
+
+APT_VERSIONS=(bionic buster cosmic disco eoan focal stretch xenial)
+
+# =================== APT repos ===============================
+if [[ ! -z ${DRY_RUN:-} ]]; then
+	export APT_DRY_RUN=1
+fi
+mkdir -p ${APT_PATH}
+base_url="${BASE_URL}/ubuntu"
+for version in ${APT_VERSIONS[@]}; do
+	for arch in "amd64" "arm64" "armhf"; do
+		echo "=== Syncing $version $arch"
+		apt-download-binary "${base_url}" "$version" "main" "$arch" "${APT_PATH}" || true
+	done
+done
+echo "APT finished"