backintime: Where are the sources from?

[Athos Ribeiro]

On Fri, Aug 26, 2022 at 07:28:32PM +0000, c.buhtz at posteo.jp wrote:
>Dear "Little Girl",
>
>thank you for your reply. But sorry, my question wasn't clear enough.
>
>I wasn't looking for upstream maintainers or the upstream repo.
>
>What I want to know is how can I be sure where the ubuntu package got 
>its sources from. I assume it isn't upstream everytime!
>
>For example backintime: Upstream is at GitHub. But there are also 
>sources on Launchpad. That is what confuses me.
>
>So I want to know on which sources the ubuntu package is based on.

launchpad builders will build the package with the sources that were
uploaded to (or pulled into) launchpad itself.

If you want to fetch the sources used to build a package in the archive,
you can use the pull-lp-source tool from ubuntu-dev-tools, which will
fetch those sources from launchpad for you.

If, instead, you want to know where the source that was pushed to
launchpad came from, then you need to verify if this is a package (same
package) available in Debian. If it is, e.g., the deb version of the
package is > 0, for instance, foobar-2 or foobar-2ubuntu1, then the
pristine sources (orig tarballs) should be the same as the ones in
Debian. If otherwise, the package is only in Ubuntu, then you should use
"Little Girl"s answer. You could also verify the source package for
hints, such as debian/watch, debian/control, or debian/*.source, or even
check if the package in question is a native one.

In your example, backintime is currently sync'd in kinetic (1.3.2-0.1).
The sources were pulled into launchpad from Debian. If you want to
understand where the Debian maintainer for that package got the sources
from, I suggest going through the hints above and Little Girl's reply.

regards,

-- 
Athos Ribeiro