On Mon, 2019-10-07 at 11:29 +0100, Simon McVittie wrote: > I think "re-bootstrap, don't upgrade" is an equally good principle for > autopkgtest and sbuild? Both will be equally susceptible to accumulating > cruft during upgrades that wouldn't have been there in a fresh debootstrap, > which is undesired if you want the invariant that you are (building|testing) > in "today's" minimal environment. debootstrap uses a fair bit more time and resources than apt upgrade, so I think that both are needed. I don't want to be rebuilding sbuild/pbuilder chroots before each package build, but an apt update and upgrade before each build starts installing build-dependencies is reasonable. At work we upgrade build containers interactively if needed, upgrade them automatically daily and rebuild them from scratch weekly, this feels like a reasonable compromise to me. -- bye, pabs https://wiki.debian.org/PaulWise
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