Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202606/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:prometheus-sql-exporter, so that this is still
visible in the BTS web page for this package.

Thanks.
--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean --with=golang --buildsystem=golang
   dh_auto_clean -O--buildsystem=golang
   dh_autoreconf_clean -O--buildsystem=golang
   dh_clean -O--buildsystem=golang
 debian/rules binary
dh binary --with=golang --buildsystem=golang
   dh_update_autotools_config -O--buildsystem=golang
   dh_autoreconf -O--buildsystem=golang
   dh_auto_configure -O--buildsystem=golang
   dh_auto_build -O--buildsystem=golang
	cd obj-x86_64-linux-gnu && go install -trimpath -v -p 2 github.com/justwatchcom/sql_exporter
src/github.com/justwatchcom/sql_exporter/main.go:16:2: cannot find package "go.uber.org/automaxprocs" in any of:
	/usr/lib/go-1.26/src/go.uber.org/automaxprocs (from $GOROOT)
	/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/src/go.uber.org/automaxprocs (from $GOPATH)
dh_auto_build: error: cd obj-x86_64-linux-gnu && go install -trimpath -v -p 2 github.com/justwatchcom/sql_exporter returned exit code 1
make: *** [debian/rules:4: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------

Hello,

Bug #1139524 in prometheus-sql-exporter reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/postgresql/prometheus-sql-exporter/-/commit/56574948f1377af58ae2bdf89cd0109290d5557b

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1139524

Re: Bradford D. Boyle

thanks for the fix!

Unfortunately, it doesn't seem to be enough: github.com/cenkalti/backoff is version 5 in the meantime. We have a patch "backoff-v4" that enables building with version 4:

-	"github.com/cenkalti/backoff"
+	"github.com/cenkalti/backoff/v4"

but even after removing that (the new modules doesn't seem to have a /v component), it fails:

# github.com/justwatchcom/sql_exporter
src/github.com/justwatchcom/sql_exporter/job.go:508:5: bo.MaxElapsedTime undefined (type *"github.com/cenkalti/backoff".ExponentialBackOff has no field or method MaxElapsedTime)
src/github.com/justwatchcom/sql_exporter/job.go:512:37: in call to backoff.Retry, type *"github.com/cenkalti/backoff".ExponentialBackOff of bo does not match "github.com/cenkalti/backoff".Operation[T] (cannot infer T)

Perhaps we should just forward that to upstream...

Christoph

Hi,

I have not been able to reproduce any build failure with the package as
it currently is in salsa. I've successfully built across unstable,
testing, and stable with sbuild using up-to-date chroots.

With that said, I _think_ there might be some confusion in the
Build-Depends that results in different packages being resolved during
build. The control file lists

    golang-github-cenkalti-backoff-v4-dev | golang-github-cenkalti-backoff-dev

but depending on which distribution is being built against, the package
golang-github-cenkalti-backoff-dev can refer to different major versions
(summarized below).

- golang-github-cenkalti-backoff-dev
  - oldstable 4.1.3-1 /usr/share/gocode/src/github.com/cenkalti/backoff/
  - stable    4.3.0-1 /usr/share/gocode/src/github.com/cenkalti/backoff/
  - testing   5.0.3-3 /usr/share/gocode/src/github.com/cenkalti/backoff/

- golang-github-cenkalti-backoff-v4-dev
  - testing   4.3.0-3 /usr/share/gocode/src/github.com/cenkalti/backoff/v4/

For unstable/testing, the correct dependency is
golang-github-cenkalti-backoff-v4-dev with the patch to include the v4
path component. For older distributions the correct dependency is
golang-github-cenkalti-backoff-dev without the patch. I wonder if adding
a version constraint (e.g., `(<< 5.0.0)`) to the Build-Depends is
needed? Additionally, the backoff-v4 patch needs to be omitted when
building for older distributions.

Re: Bradford Boyle

That was it, excellent analysis. Thanks! Upload is on the way now.

The package notes say

bookworm, bullseye, noble, jammy: needs golang-github-prometheus-client-golang-dev v1.19+

so the older dists have more problems and that tweak isn't required.

Thanks,
Christoph

We believe that the bug you reported is fixed in the latest version of
prometheus-sql-exporter, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1139524@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Bradford D. Boyle <bradford.d.boyle@gmail.com> (supplier of updated prometheus-sql-exporter package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 14 Jun 2026 18:31:09 +0000
Source: prometheus-sql-exporter
Architecture: source
Version: 0.9-3
Distribution: unstable
Urgency: medium
Maintainer: Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>
Changed-By: Bradford D. Boyle <bradford.d.boyle@gmail.com>
Closes: 1139524
Changes:
 prometheus-sql-exporter (0.9-3) unstable; urgency=medium
 .
   * Team upload.
   * Add golang-uber-automaxprocs-dev to Build-Depends. (Closes: #1139524)
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