Fix "passenger" tagging bug

Author: tianon

generate-stackbrew-library.sh

@@ -68,20 +68,21 @@ join() {
 }
 
 for version in "${versions[@]}"; do
+	# normally this would be down in the other loop, but "passenger" doesn't have it, so this is the simplest option (we just can't ever have "alpine" be out of sync, so we should remove it instead if it ever needs to be out of sync)
+	fullVersion="$(git show "$commit":"$version/Dockerfile" | awk '$1 == "ENV" && $2 == "REDMINE_VERSION" { print $3; exit }')"
+
+	versionAliases=(
+		$fullVersion
+		$version
+		${aliases[$version]:-}
+	)
+
 	for variant in '' passenger alpine; do
 		dir="$version${variant:+/$variant}"
 		[ -f "$dir/Dockerfile" ] || continue
 
 		commit="$(dirCommit "$dir")"
 
-		fullVersion="$(git show "$commit":"$dir/Dockerfile" | awk '$1 == "ENV" && $2 == "REDMINE_VERSION" { print $3; exit }')"
-
-		versionAliases=(
-			$fullVersion
-			$version
-			${aliases[$version]:-}
-		)
-
 		if [ -n "$variant" ]; then
 			variantAliases=( "${versionAliases[@]/%/-$variant}" )
 			variantAliases=( "${variantAliases[@]//latest-/}" )