Hi, On Thu, Mar 22, 2018 at 10:08:58PM +0800, Paul Wise wrote: > On Wed, Mar 21, 2018 at 11:50 PM, Osamu Aoki wrote: > > > One negative point of above approach is that it always downloads doc deb > > packages even if there are no changes. > > This will prevent downloading the same package twice: > > chdist apt old install --download-only emacsen-common
Oh, that's it. I should have known ... this is simple enough. (I always had real chroot systems .... so never used it) > > Also unpacking code is still complicated to make it future proof. > > Hmm, do you have any more details? Is dpkg -x not enough? Probably enough. > > Then I thought it may be good idea to create very small Debian unstable > > chroot. Then install pertinent doc packages. For old deb from > > snapshot, we can wget and dpkg -i. Then this chroot can be updated and > > dist-upgraded. This causes to download all base package updates but > > skips repeated download of doc packages. Hmmm... which is worse? > > A chroot needs root so probably isn't going to work here. That's fair. So now agree. Thanks for the idea. Osamu
