Add script to generate "library/postgres" for stackbrew

generate-stackbrew-library.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -e
+
+declare -A aliases
+aliases=(
+	[9.3]='latest 9'
+	[8.4]='8'
+)
+
+cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
+
+versions=( */ )
+versions=( "${versions[@]%/}" )
+commit="$(git log -1 --format='format:%H')"
+url='git://github.com/docker-library/postgres'
+
+echo '# maintainer: InfoSiftr <github@infosiftr.com> (@infosiftr)'
+
+for version in "${versions[@]}"; do
+	fullVersion="$(grep -m1 'ENV PG_VERSION ' "$version/Dockerfile" | cut -d' ' -f3 | cut -d- -f1 | sed 's/~/-/g')"
+	versionAliases=( ${aliases[$version]} $version $fullVersion )
+	
+	echo
+	for va in "${versionAliases[@]}"; do
+		echo "$va: ${url}@${commit} $version"
+	done
+done