[git-buildpackage] A basic question to begin

[Guido Günther]

Hi,
On Sat, May 07, 2022 at 06:03:21AM -0500, Seamus de Mora wrote:
> Hello,
> 
> On Tue, May 3, 2022 at 4:19 AM Guido Günther <agx at sigxcpu.org> wrote:
> 
> > > FWIW, I experimented with my local .dsc file. 'man gbp-import-dsc'
> suggests
> > > usage of a local .dsc as follows:
> > > 'gbp import-dsc ../hello_2.10-1.dsc'
> > > Which implied to me that the folder should be created, then descend
> into it
> > > before running this command.
> >
> > this is true when you run it inside an existing repo as it assume you
> > update. If you run from a outside repo it creates one, that's why the
> > log says:
> >
> > gbp:info: No git repository found, creating one.
> 
> To recap, I have apparently successfully created a git repo that matches
> the source package I obtained using 'apt-get source dhcpcd5'.  I now have a
> question(s) re. the 'incorporation' of my pristine upstream source into the
> repo.
> 
> When I pulled the dhcpcd5 source repo (using 'apt-get source dhcpcd5'), I
> got a tarball named 'dhcpcd5_8.1.2.orig.tar.xz'. AIUI, this is called the
> 'pristine' upstream source, and during the build process it serves as a
> "quality check" on the integrity of the package.
> 
> 'man gbp-import-dsc' defines these options:
> 
>    - "--pristine-tar => Generate pristine-tar delta file."
>    - "--upstream-branch=branch_name => The branch in the Git repository the
>    upstream sources are put onto. Default is upstream"
> 
> I'm confused on the purpose of these options - could you explain how they
> are used? Let me try to explain where I'm confused:
> 
>    - The 'dhcpcd5' repo I created using 'gbp import-dsc' contains a branch
>    called 'upstream'. Does this branch contain/represent the same sources that
>    are in the 'dhcpcd5_8.1.2.orig.tar.xz' tarball?
>    - If so, why can't the 'pristine-tar delta file' be computed from the
>    'upstream' branch in the repo?

The pristine-tar manpage has example:

  https://manpages.debian.org/bullseye/pristine-tar/pristine-tar.1.en.html

and the Debian Wiki:

  https://wiki.debian.org/DebianPackaging--pristine-tar-option-explained

Cheers,
 -- Guido

> 
> 
> Thnx,
> ~S