Phases createiso, liveimages, image_build, ostree_installer and osbs are
done in parallel, logs from these phases are mixed and and it's not
obvious which log message belongs to which phase. This change adds phase
name in log message for these phases.
The new mixin 'PhaseLoggerMixin' is added to extend a Pungi phase with a
logging logger which copy handlers from compose's logger but with
formatter changed.
Fixes: #58
Signed-off-by: Qixiang Wan <qwan@redhat.com>
If the media is bootable, we can not split it. The limit is not used in
that case and we may overflow it with an warning message. The warning
should correctly mention what is going on instead of printing a
non-sensical message about free space on media being some huge number.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
