Otherwise, the transformations won't work properly for non-ASCII text.
You configure the character set with the link:{javadocPath}/org/gradle/api/file/CopySpec.html#setFilteringCharset-java.lang.String-[CopySpec.setFilteringCharset(String)] property.
If it's not specified, the JVM default character set is used, which will likely differ from the one you want.

[[sec:setting_file_permissions]]
== Setting file permissions