Once again, this morning - I managed to break my (long running) ISO image build running in a separate terminal (out of sight, out of mind) - by trying to run some very short running package build / verification.

Sure - I know that by using OSC_BUILD_ROOT I can have multiple ones of these - but the ISO build consumes so much disk space, that - this is not feasible.

What would be -really- useful would be some rudimentary pid-file based locking that interactively warns the user before starting to trash that chroot jail and breaking the other build ;-) 

While someone is there ;-)  it would also be wonderful to hoist the interactive step of "the last build was unsuccessful, would you like to clean up the previous jail" - to right at the beginning, rather than in the middle of the build [ after some substantial dependency solving / package downloading ? ] action that takes significant time [ during which I tend to wander off, and of course, since it is interactive my "play sound on failure" helper doesn't help ;-]