: "xi:include" directives work in Solr config files, but in most (all?) : versions of Solr, they require absolute paths, which makes portable : configuration slightly more sticky. Still, a very viable solution.
Huh? There were bugs in xinclude parsing up to Solr 1.4 that caused relative paths to be resolved in a very wonky way (relative the CWD), so that absolute paths were recomended for the sake of clarity/sanity, but these bugs have been fixed since Solr 3.1... https://issues.apache.org/jira/browse/SOLR-1656 -Hoss