Add an action to find new versions of helm charts (#184)

Co-authored-by: Marco Franssen <[email protected]>

.github/workflows/scripts/update-versions.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+SCRIPT=$(readlink -f "$0")
+SCRIPTPATH=$(dirname "$SCRIPT")
+
+CHARTJSON=$SCRIPTPATH/../../tests/charts.json
+
+jq -r ".[].name" "${CHARTJSON}" | while read -r CHART; do
+  ENTRYQUERY='.[] | select(.name == "'$CHART'")'
+  REPO_URL="$(jq -r "$ENTRYQUERY | .repo" "${CHARTJSON}")"
+  VERSION="$(jq -r "$ENTRYQUERY | .version" "${CHARTJSON}")"
+  echo Processing: ${CHART}
+  echo "  repo: $REPO_URL"
+  echo "  current version: $VERSION"
+  helm repo add "$CHART" "$REPO_URL" > /dev/null
+  helm repo update "$CHART" > /dev/null
+  LATEST_VERSION=$(helm search repo --regexp "$CHART/$CHART\v" -o json | jq -r '.[0].version')
+  echo "  latest version: $LATEST_VERSION"
+  if [ "x$VERSION" != "x$LATEST_VERSION" ]; then
+    echo "  New version found!"
+    jq "( $ENTRYQUERY ).version |= "'"${LATEST_VERSION}"' "${CHARTJSON}" > /tmp/$$
+    mv /tmp/$$ "${CHARTJSON}"
+  fi
+done