Re: [Libguestfs] [PATCH 5/8] builder: switch sources to .conf files

Introduce and use simple .conf files to configure the sources of indexes for virt-builder. The location of these files is in XDG_CONFIG_DIRS / XDG_CONFIG_HOME, so it can be easily overridden. There are three .conf(.in) files shipped with this commit: - "test-index.conf.in" (in "test-config"), which points to the "test-index" index (used in tests only); the tests are adapted to point to the hierarchy containing this .conf - "libguestfs.conf.in" (in "test-website"), which points to the local "index.asc" (i.e. the offline copy of the libguestfs.org index); run(.in) will point to the hierarchy providing this .conf - "libguestfs.conf.in" (directly among the other sources), which points to the online "index.asc" and it is installed in sysconfdir, along with the key of this repository The tests are adapted, other than to the different way to pick sources, to the different output of --list, as "test-index" is not signed.