Hi, Quoting Ian Jackson (2015-09-26 15:40:34) > This is not a way I expected people to try to use dgit. I think what > is happening is that: > - dgit produces a .dsc (because it thinks it's dgit's job to > build the source package) and a .debian.tar.gz > - sbuild produces a /different/ (but hopefully equivalent!) > .dsc and .debian.tar.gz. This overwrites dgit's .debian.tar.xz > but not dgit's .dsc. > - dgit runs mergechanges to pick up the source it built and the > binaries you built (well, this is what it thinks it is > trying to do) but what actually happens is that you get > a _multi.changes file talking about dgit's .dsc > - but dgit's .dsc talks about the now-overwritten .debian.tar.xz > hence the checksum mismatch > > I think dgit could certainly do better at detecting and handling this. > I think expecting dgit to peer into sbuild --debuildopt= is probably > too much, but it could spot that the sbuild-generated .changes file > contains a source package and produce a helpful error message much > earlier.
Yes, that would be very helpful and would've stopped me from trying to run sbuild with --debbuildopt=--changes-option=-S :) > Also I think dgit ought to have spotted that the .changes it was thinking of > getting you to sign was not going to work when uploaded. > > I think you probably wanted `dgit build-source'. Aha! Yes, that would satisfy my need to create a source-only upload .changes file > I don't understand why you think you want to use sbuild to build the > source package. After all, a source package is the _input_ to > sbuild. Indeed `dgit sbuild' will feed dgit's .dsc to sbuild. > Invoking sbuild to run dpkg-buildpackage -S will just regenerate the > source package pointlessly. > > Feel free to explain why I'm wrong, if I am! I don't think you are - it's just different expectations of how things should be done and I don't see how your approach should be wrong. > If you could point me at which bits of the docs you looked at, I could > probably improve them. (I'm loathe to _add_ too much because adding too much > just makes the doc _less_ useable for people, who have to simply try stuff.) I think if you could just make it such that the rebuilding of the some files by sbuild would trigger helpful error messages, then this bug can definitely be closed :) I think it would definitely be helpful to have some examples of how to use dgit together with tools like sbuild. For example sbuild has the option "$build_source = 1" in its config file which should probably be pointed out to be problematic if used together with dgit. Thanks a lot for your work! cheers, josch
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