Rich Freeman <ri...@gentoo.org> wrote: > Downsides include: > 2. Impossible to tweak ebuilds without setting up an overlay. This > might be annoying for devs/etc.
It is still possible to setup a read-writable portage tree (using overlayfs/aufs/unionfs-fuse/... e.g. using the squashmount tool from the mv overlay). However, currently this does not play nicely with squashdelta: You have to "undo" the mounting of squashdelta and have to use different command (e.g. squashmount) afterwards. Although this can probably be done e.g. in eix-sync with hooks, I hope that in the near future there will be a possibility to combine these methods more conveniently. Currently, I made only some remarks in comment #3 of bug 549716, because it seems that the sync module mechanism is currently lacking the infrastructure for adding custom data (like hooks) to a module.
