Your message dated Tue, 07 Jul 2026 22:35:39 +0200
with message-id <[email protected]>
and subject line Re: Couldn't commit to pristine-tar - This doesn't look like a 
tar archive (continued)
has caused the Debian Bug report #1122524,
regarding Couldn't commit to pristine-tar - This doesn't look like a tar archive
to be marked as done.

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-- 
1122524: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1122524
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: git-buildpackage
Version: 0.9.39
Severity: important

I hadn't worked on packaging since long, but now my workflow is broken
in a strange way - apparently, importing a new upstream version doesn't
work :

$ gbp import-orig --uscan
gbp:info: Launching uscan...
Newest version of coq-hammer on remote site is 1.3.2+9.1, local version
is 1.3.2+9.0
 => Newer package available from:
        =>
https://github.com/lukaszcz/coqhammer/archive/refs/tags/v1.3.2+9.1.tar.gz
Leaving ../coq-hammer_1.3.2+9.1.orig.tar.gz where it is.
gbp:info: Using uscan downloaded tarball ../coq-
hammer_1.3.2+9.1.orig.tar.gz
What is the upstream version? [1.3.2+9.1] 
gbp:info: Importing '../coq-hammer_1.3.2+9.1.orig.tar.gz' to branch
'upstream'...
gbp:info: Source package is coq-hammer
gbp:info: Upstream version is 1.3.2+9.1
gbp:error: Import of ../coq-hammer_1.3.2+9.1.orig.tar.gz failed:
Couldn't commit to 'pristine-tar' with upstream
'2ea1d9814513d58f08f8401c1397109a7b7b7ae3': tar: This does not look
like a tar archive
tar: Exiting with failure status due to previous errors
error: excessively large binary delta for /tmp/pristine-
tar.tY7F8p09zt/origtarball
(Please consider filing a bug report.)
pristine-tar: failed to generate delta
gbp:error: Error detected, Will roll back changes.
gbp:info: Rolling back branch upstream by resetting it to
86b4c9a503452325aaabc441b157f1cfeaeef3c3
gbp:info: Rolling back branch pristine-tar by resetting it to
cdedd02f1c539ceaa2179e03f4bf8153d41b4de4
gbp:error: Rolled back changes after import error.


and directly with the tarball:

$ gbp import-orig ../coq-hammer_1.3.2+9.1.orig.tar.gz
What is the upstream version? [1.3.2+9.1] 
gbp:info: Importing '../coq-hammer_1.3.2+9.1.orig.tar.gz' to branch
'upstream'...
gbp:info: Source package is coq-hammer
gbp:info: Upstream version is 1.3.2+9.1
gbp:error: Import of ../coq-hammer_1.3.2+9.1.orig.tar.gz failed:
Couldn't commit to 'pristine-tar' with upstream
'2ea1d9814513d58f08f8401c1397109a7b7b7ae3': tar: This does not look
like a tar archive
tar: Exiting with failure status due to previous errors
error: excessively large binary delta for /tmp/pristine-
tar.Chpg1a_qnq/origtarball
(Please consider filing a bug report.)
pristine-tar: failed to generate delta
gbp:error: Error detected, Will roll back changes.
gbp:info: Rolling back branch upstream by resetting it to
86b4c9a503452325aaabc441b157f1cfeaeef3c3
gbp:info: Rolling back branch pristine-tar by resetting it to
cdedd02f1c539ceaa2179e03f4bf8153d41b4de4
gbp:error: Rolled back changes after import error.


I checked:
- that the file I point to is indeed a valid tarball (well, a link to a
valid tarball to be precise) ;
- that I get a similar failure with other packages.

Cheers,

J.Puydt

--- End Message ---
--- Begin Message ---
Le lundi 06 juillet 2026 à 20:43 -0700, Soren Stoutner a écrit :
> On Monday, July 6, 2026 2:30:50 PM Mountain Standard Time Julien
> Puydt wrote:
> > Le samedi 04 juillet 2026 à 21:11 +0500, Andrey Rakhmatullin a
> > écrit :
> > > On Sat, Jul 04, 2026 at 06:09:24PM +0200, Julien Puydt wrote:
> > > > > > It doesn't happen in a chroot.
> > > > > 
> > > > > I thought you said it does.
> > > > 
> > > > I rechecked and it doesn't. I think I mixed up somewhere...
> > > 
> > > Well then the problem is mot likely in /usr/local or something
> > > like
> > > that.
> > 
> > Nothing in /usr/local...
> > 
> > Is there a way to actually debug what goes sideways?
> > 
> > I'm a bit desperate...
> 
> My guess is that one of the binaries that creates or processes
> tarballs is 
> corrupt on your system.  You could try reinstalling anything that
> looks 
> suspicious.  You could also try looking at the list of packages
> installed in 
> your chroot as a list of possible packages to verify that haven’t
> been 
> corrupted.
> 
> In this regards, dpkg -V is helpful.
> 
> https://manpages.debian.org/trixie/dpkg/dpkg.1.en.html

Oh, dear, I did just that and now the error is gone! We had checked so
many thing, and somewhere some file was just corrupt and stayed so even
through package upgrades...

THANK YOU ALL!

JP

--- End Message ---

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