add script to list versions in all dockerfiles

Signed-off-by: Lachlan Roberts <[email protected]>

showVersions.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+paths=( "$@" )
+if [ ${#paths[@]} -eq 0 ]; then
+	paths=( $(find -mindepth 4 -maxdepth 5 -name "Dockerfile" | sed -e 's/\.\///' | sed -e 's/\/Dockerfile//' | sort -nr) )
+fi
+paths=( "${paths[@]%/}" )
+
+declare -A versionToPaths
+for path in "${paths[@]}"; do
+	version=$(cat "$path"/Dockerfile | egrep "ENV JETTY_VERSION" | sed "s|.*ENV JETTY_VERSION \(.*\)|\1|")
+	versionToPaths["$version"]+=" $path"
+done
+
+for version in "${!versionToPaths[@]}"; do
+	echo "Version: $version"
+	paths=( "${versionToPaths[$version]}" )
+	for path in $paths; do
+		echo "    - $path"
+	done
+done