In "9.5.5. Setting Up Ports Trees for Use with Poudriere" the handbook gives details on how to get ports tree for testing with poudriere. In particular, the following cmd is given: # poudriere ports -c -m svn+https -p subversive However, in order for this to succeed subversion has to be compiled with SERF option turned on. Otherwise it will fail with svn: E170000: Unrecognized URL scheme for 'https://svn.freebsd.org/ports/head' I think porters handbook should explicitly call out subversion with SERF support is required for svn operations.
A commit references this bug: Author: mat Date: Fri Aug 4 13:42:33 UTC 2017 New revision: 50637 URL: https://svnweb.freebsd.org/changeset/doc/50637 Log: Add a note about subversion needing SERF to access http(s). PR: 206118 Reported by: oleksii tsai gmail com Sponsored by: Absolight, The FreeBSD Foundation Changes: head/en_US.ISO8859-1/books/porters-handbook/testing/chapter.xml
I added a note saying that.