pre-install.xql
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	xquery version "1.0";

	import module namespace xdb="http://exist-db.org/xquery/xmldb";

	(: The following external variables are set by the repo:deploy function :)

	(: file path pointing to the exist installation directory :)
	declare variable $home external;
	(: path to the directory containing the unpacked .xar package :)
	declare variable $dir external;
	(: the target collection into which the app is deployed :)
	declare variable $target external;

	declare function local:mkcol-recursive($collection, $components) {
	if (exists($components)) then
	let $newColl := concat($collection, "/", $components[1])
	return (
	xdb:create-collection($collection, $components[1]),
	local:mkcol-recursive($newColl, subsequence($components, 2))
	)
	else
	()
	};

	(: Helper function to recursively create a collection hierarchy. :)
	declare function local:mkcol($collection, $path) {
	local:mkcol-recursive($collection, tokenize($path, "/"))
	};

	(: store the collection configuration :)
	local:mkcol("/db/system/config", $target),
	xdb:store-files-from-pattern(concat("/system/config", $target), $dir, "*.xconf")